TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
SURFACE BOUNDARY LAYER [35 records]
Record 1 - internal organization data 2023-01-31
Record 1, English
Record 1, Subject field(s)
- Atmospheric Physics
- Geophysics
Record 1, Main entry term, English
- diurnal thermal wave
1, record 1, English, diurnal%20thermal%20wave
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- diurnal wave 2, record 1, English, diurnal%20wave
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Above the surface layer, the diurnal wave becomes nearly 180 [degrees] out of phase and wind speed decreases sharply following sunrise, [attaining] a minimum value around noon, and [increasing] in the afternoon and evening hours. The amplitude of the wave increases with height and attains its maximum value somewhere in the middle of the convective [planetary boundary layer]. 2, record 1, English, - diurnal%20thermal%20wave
Record 1, French
Record 1, Domaine(s)
- Physique de l'atmosphère
- Géophysique
Record 1, Main entry term, French
- variation thermique diurne
1, record 1, French, variation%20thermique%20diurne
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2018-04-04
Record 2, English
Record 2, Subject field(s)
- Aircraft Airframe
- Ship and Boat Parts
Record 2, Main entry term, English
- vortex generator
1, record 2, English, vortex%20generator
correct, standardized
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A device, often a small vane attached to a surface, to produce one or more discrete vortices which trail downstream adjacent to the surface, promote mixing in the boundary layer and delay boundary-layer separation. 2, record 2, English, - vortex%20generator
Record number: 2, Textual support number: 1 OBS
vortex generator: designation and definition standardized by the British Standards Institution (BSI). 3, record 2, English, - vortex%20generator
Record 2, French
Record 2, Domaine(s)
- Cellule d'aéronefs
- Parties des bateaux
Record 2, Main entry term, French
- générateur de tourbillons
1, record 2, French, g%C3%A9n%C3%A9rateur%20de%20tourbillons
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2016-09-27
Record 3, English
Record 3, Subject field(s)
- Thermodynamics
Record 3, Main entry term, English
- slip-flow regime
1, record 3, English, slip%2Dflow%20regime
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- slip flow regime 2, record 3, English, slip%20flow%20regime
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
In the slip flow regime... the often-assumed noslip boundary conditions seem to fail, and a sublayer on the order of one mean free path, known as the "Knudsen layer", starts to become dominant between the bulk of the fluid and the wall surface. 2, record 3, English, - slip%2Dflow%20regime
Record 3, French
Record 3, Domaine(s)
- Thermodynamique
Record 3, Main entry term, French
- régime de raréfaction
1, record 3, French, r%C3%A9gime%20de%20rar%C3%A9faction
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2015-12-04
Record 4, English
Record 4, Subject field(s)
- Stators and Rotors (Electrical Components)
- Compressors
Record 4, Main entry term, English
- centrifugal compressor impeller
1, record 4, English, centrifugal%20compressor%20impeller
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
To minimize disk friction loss on the centrifugal compressor impeller, the axial clearance and the theoretical boundary layer thickness should be designed to be the same. The design of the impeller requires careful consideration in order to optimize axial clearance and minimize surface roughness. 2, record 4, English, - centrifugal%20compressor%20impeller
Record 4, French
Record 4, Domaine(s)
- Stators et rotors (Composants électrotechniques)
- Compresseurs
Record 4, Main entry term, French
- rotor de compresseur centrifuge
1, record 4, French, rotor%20de%20compresseur%20centrifuge
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2015-03-11
Record 5, English
Record 5, Subject field(s)
- Atmospheric Physics
Record 5, Main entry term, English
- surface boundary layer
1, record 5, English, surface%20boundary%20layer
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- surface layer 2, record 5, English, surface%20layer
correct
- ground layer 3, record 5, English, ground%20layer
correct
- atmospheric surface layer 4, record 5, English, atmospheric%20surface%20layer
correct
- ASL 4, record 5, English, ASL
correct
- ASL 4, record 5, English, ASL
- atmospheric boundary layer 5, record 5, English, atmospheric%20boundary%20layer
see observation
- ABL 6, record 5, English, ABL
see observation
- ABL 6, record 5, English, ABL
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
Thin layer of air adjacent to the Earth’s surface and whose depth varies about 10 and 100 metres. 7, record 5, English, - surface%20boundary%20layer
Record number: 5, Textual support number: 1 CONT
... the "Atmospheric Surface Layer" (ASL), the layer of the atmosphere within which all our activities (except flying) take place. The ASL is the inner layer of the PBL within which vertical mixing is limited by proximity to the ground - a layer within which the eddy size is small because the solid barrier prohibits any organized downward (or upward) motion. Vast amounts of heat and vapour travel through this surface layer to the outer PBL and ultimately the whole atmosphere. 8, record 5, English, - surface%20boundary%20layer
Record number: 5, Textual support number: 1 OBS
The term "atmospheric boundary layer" may sometimes means "planetary boundary layer". To avoid confusion and misunderstanding within one another, preferably do not use these terms. 9, record 5, English, - surface%20boundary%20layer
Record number: 5, Textual support number: 2 OBS
Reproduced from "Titles, Names and Acronyms related to the activities of the International Oceanographic Commission of Unesco", with the authorization of Unesco. 10, record 5, English, - surface%20boundary%20layer
Record 5, French
Record 5, Domaine(s)
- Physique de l'atmosphère
Record 5, Main entry term, French
- couche limite de surface
1, record 5, French, couche%20limite%20de%20surface
correct, feminine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
- couche de surface 2, record 5, French, couche%20de%20surface
correct, feminine noun
- couche limite atmosphérique 3, record 5, French, couche%20limite%20atmosph%C3%A9rique
see observation, feminine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Mince couche d'air adjacente à la surface du globe dont l'épaisseur est d'environ 10 à 100 mètres. 2, record 5, French, - couche%20limite%20de%20surface
Record number: 5, Textual support number: 1 OBS
Le terme «couche limite atmosphérique» peut parfois s'appliquer aussi à la notion de «couche limite planétaire» (planetary boundary layer, en anglais). 5, record 5, French, - couche%20limite%20de%20surface
Record number: 5, Textual support number: 2 OBS
Reproduit de «Titles, Names and Acronyms related to the activities of the International Oceanographic Commission of Unesco», avec l'autorisation de l'Unesco. 6, record 5, French, - couche%20limite%20de%20surface
Record 5, Spanish
Record 5, Campo(s) temático(s)
- Física de la atmósfera
Record 5, Main entry term, Spanish
- capa límite superficial
1, record 5, Spanish, capa%20l%C3%ADmite%20superficial
correct, feminine noun
Record 5, Abbreviations, Spanish
Record 5, Synonyms, Spanish
- capa cerca del suelo 1, record 5, Spanish, capa%20cerca%20del%20suelo
feminine noun
- capa de superficie 1, record 5, Spanish, capa%20de%20superficie
feminine noun
- capa límite atmosférica 3, record 5, Spanish, capa%20l%C3%ADmite%20atmosf%C3%A9rica
feminine noun
Record 5, Textual support, Spanish
Record number: 5, Textual support number: 1 DEF
Capa fina de aire adyacente a la superficie terrestre cuyo espesor varía entre 10 y 100 m. 1, record 5, Spanish, - capa%20l%C3%ADmite%20superficial
Record number: 5, Textual support number: 1 OBS
Reproducido del "Titles, Names and Acronyms related to the activities of the International Oceanographic Commission of Unesco", con la autorización de Unesco. 4, record 5, Spanish, - capa%20l%C3%ADmite%20superficial
Record 6 - internal organization data 2014-04-23
Record 6, English
Record 6, Subject field(s)
- Fluid Mechanics and Hydraulics (Physics)
Record 6, Main entry term, English
- laminar boundary layer
1, record 6, English, laminar%20boundary%20layer
correct
Record 6, Abbreviations, English
- LBL 2, record 6, English, LBL
correct
Record 6, Synonyms, English
- laminar flow boundary layer 3, record 6, English, laminar%20flow%20boundary%20layer
correct
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
The layer immediately next to a fixed boundary in which laminar flow prevails. 4, record 6, English, - laminar%20boundary%20layer
Record number: 6, Textual support number: 1 CONT
Aircraft... in general,... are not certified to fly with any contamination [(e. g. possible contaminants : frost, squashed bugs, anti-icing fluids, etc.) ] on the lift and control surfaces. However,... small amounts of surface contamination usually result in roughness. This causes local changes in the pressure gradient in the boundary layer and can cause turbulence in a laminar flow boundary layer or complete flow separation from the surface. 3, record 6, English, - laminar%20boundary%20layer
Record number: 6, Textual support number: 2 CONT
Above a surface, a laminar layer will develop and fluid velocity will increase with distance from the surface, but not indefinitely. At some point, flow will become turbulent, with the laminar sublayer separating the turbulent layer from the surface. In the real world, most laminar boundary layers are extremely thin(order of 1 mm), but can be of biological importance, for example, next to plant leaves or as invertebrate refuges in streams. 5, record 6, English, - laminar%20boundary%20layer
Record number: 6, Textual support number: 1 OBS
... flow is smooth and nonturbulent. 5, record 6, English, - laminar%20boundary%20layer
Record number: 6, Textual support number: 2 OBS
The equations of motion of the fluid in the laminar boundary layer are the Navier-Stokes equations containing only the inertia and molecular viscosity terms. 6, record 6, English, - laminar%20boundary%20layer
Record 6, French
Record 6, Domaine(s)
- Mécanique des fluides et hydraulique (Physique)
Record 6, Main entry term, French
- couche limite laminaire
1, record 6, French, couche%20limite%20laminaire
correct, feminine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 DEF
Couche voisine d'une surface limite donnée dans laquelle les forces de viscosité moléculaire sont grandes parce que le gradient de vitesse normal à la surface limite est élevé. 2, record 6, French, - couche%20limite%20laminaire
Record number: 6, Textual support number: 1 CONT
La présence d'une couche limite laminaire à la surface de notre peau limite notamment nos échanges de chaleur avec l'air extérieur et permet de maintenir la température de surface de nos mains ou de notre figure à une valeur voisine de 30 °C même si l'air extérieur est froid. 3, record 6, French, - couche%20limite%20laminaire
Record number: 6, Textual support number: 1 OBS
Les équations du mouvement du fluide dans la couche limite laminaire sont les équations de Navier-Stokes ne contenant que les termes d'inertie et de viscosité moléculaire. 2, record 6, French, - couche%20limite%20laminaire
Record 6, Spanish
Record 6, Campo(s) temático(s)
- Mecánica de fluidos e hidráulica (Física)
Record 6, Main entry term, Spanish
- capa límite laminar
1, record 6, Spanish, capa%20l%C3%ADmite%20laminar
feminine noun
Record 6, Abbreviations, Spanish
Record 6, Synonyms, Spanish
Record 6, Textual support, Spanish
Record number: 6, Textual support number: 1 DEF
Capa inmediata a una superficie límite dada en la cual son elevadas las fuerzas de viscosidad molecular porque es alto el gradiente de velocidad normal a la superficie límite. 1, record 6, Spanish, - capa%20l%C3%ADmite%20laminar
Record number: 6, Textual support number: 1 OBS
Las ecuaciones de movimiento del fluido en la capa límite laminar son las de Navier-Stokes, que contienen sólo los términos de inercia y de viscosidad molecular. 1, record 6, Spanish, - capa%20l%C3%ADmite%20laminar
Record 7 - internal organization data 2013-10-17
Record 7, English
Record 7, Subject field(s)
- Computer Memories
- Storage Media (Data Processing)
Record 7, Main entry term, English
- floating head
1, record 7, English, floating%20head
correct, standardized
Record 7, Abbreviations, English
Record 7, Synonyms, English
- flying head 2, record 7, English, flying%20head
correct, standardized
- air-floating head 2, record 7, English, air%2Dfloating%20head
correct, standardized
Record 7, Textual support, English
Record number: 7, Textual support number: 1 DEF
A magnetic head floating on a layer of air away from the recording surface. 3, record 7, English, - floating%20head
Record number: 7, Textual support number: 1 CONT
Flying-head storage retrieval(drum) : The flying-head(air-floating head) technique combines aerodynamic and pneumatic principles. Read/write heads float on a boundary layer of air, generated by the rotation of the drum, at one half of a thousandth of an inch or less from the oxide-coated surface of the drum. 4, record 7, English, - floating%20head
Record number: 7, Textual support number: 1 OBS
floating head; flying head; air-floating head: terms standardized by CSA and ISO. 5, record 7, English, - floating%20head
Record 7, French
Record 7, Domaine(s)
- Mémoires (Informatique)
- Supports d'information (Informatique)
Record 7, Main entry term, French
- tête flottante
1, record 7, French, t%C3%AAte%20flottante
correct, feminine noun, standardized
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 DEF
Tête magnétique séparée de la surface d'enregistrement par une couche d'air. 2, record 7, French, - t%C3%AAte%20flottante
Record number: 7, Textual support number: 1 OBS
tête flottante : terme normalisé par la CSA et l'ISO. 3, record 7, French, - t%C3%AAte%20flottante
Record 7, Spanish
Record 7, Campo(s) temático(s)
- Memorias (Computadoras)
- Medios de almacenamiento (Procesamiento de datos)
Record 7, Main entry term, Spanish
- cabeza flotante
1, record 7, Spanish, cabeza%20flotante
correct, feminine noun
Record 7, Abbreviations, Spanish
Record 7, Synonyms, Spanish
Record 7, Textual support, Spanish
Record number: 7, Textual support number: 1 DEF
Cabeza magnética flotando sobre una capa de aire desde la superficie de grabación. 1, record 7, Spanish, - cabeza%20flotante
Record 8 - internal organization data 2013-05-30
Record 8, English
Record 8, Subject field(s)
- Plate Tectonics
Record 8, Main entry term, English
- upwelling magma
1, record 8, English, upwelling%20magma
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
Record 8, Textual support, English
Record number: 8, Textual support number: 1 CONT
The lithosphere constitutes an upper, cold boundary layer. It accretes at high temperature at spreading ridges, where upwelling magma from the mantle reaches the surface. 2, record 8, English, - upwelling%20magma
Record 8, French
Record 8, Domaine(s)
- Tectonique des plaques
Record 8, Main entry term, French
- remontée magmatique
1, record 8, French, remont%C3%A9e%20magmatique
correct, feminine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record 8, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 2012-12-20
Record 9, English
Record 9, Subject field(s)
- Meteorological Forecasting, Data Measurement and Analysis
Record 9, Main entry term, English
- meteorological data
1, record 9, English, meteorological%20data
correct, plural
Record 9, Abbreviations, English
Record 9, Synonyms, English
- weather data 2, record 9, English, weather%20data
correct, plural
Record 9, Textual support, English
Record number: 9, Textual support number: 1 CONT
The meteorological data will in many cases not be dense enough in space and time to supply to a model the input parameters in a satisfying manner. Mostly, only surface values of the meteorological parameters are available and the turbulence characteristics in the boundary layer of the atmosphere must be estimated from surface data. 3, record 9, English, - meteorological%20data
Record 9, French
Record 9, Domaine(s)
- Prévisions météorologiques et mesure et analyse des données
Record 9, Main entry term, French
- données météorologiques
1, record 9, French, donn%C3%A9es%20m%C3%A9t%C3%A9orologiques
correct, feminine noun, plural
Record 9, Abbreviations, French
Record 9, Synonyms, French
Record 9, Textual support, French
Record number: 9, Textual support number: 1 CONT
Les modèles de transport à grandes distances (TGD) comportent plusieurs caractéristiques importantes. Ils utilisent des données sur les émissions, la rugosité et les types de sols ainsi que des données météorologiques telles que la vitesse et la direction du vent, l'humidité dans l'air, le rayonnement solaire et la hauteur de la couche de mélange. 2, record 9, French, - donn%C3%A9es%20m%C3%A9t%C3%A9orologiques
Record 9, Key term(s)
- donnée météorologique
Record 9, Spanish
Record 9, Textual support, Spanish
Record 10 - internal organization data 2010-07-28
Record 10, English
Record 10, Subject field(s)
- Plant Biology
Record 10, Main entry term, English
- boundary layer resistance
1, record 10, English, boundary%20layer%20resistance
correct
Record 10, Abbreviations, English
Record 10, Synonyms, English
Record 10, Textual support, English
Record number: 10, Textual support number: 1 CONT
Learning Objectives - Environment and Photosynthesis. ... Understand the impact of wind on boundary layer effects. Understand factors that control boundary layer resistance, stomatal resistance, and mesophyll resistance. 2, record 10, English, - boundary%20layer%20resistance
Record number: 10, Textual support number: 2 CONT
Diffusion of CO2 into a C3 Leaf. The pathway for CO2 to enter a leaf and be carboxylated by Rubisco can be described in terms of various resistances to diffusion. 1. Boundary layer resistance-still air at surface of leaf.... 2. Stomatal resistance-diffusion through the stomatal pore.... 3. Intercellular air space resistance-diffusion from the pore to the mesophyll cell wall.... 4. Mesophyll resistance-CO2 dissolves in water bathing the cell wall and diffuses in the aqueous phase into the chloroplasts; it includes the carboxylation resistance(resistance to fixation by Rubisco). 3, record 10, English, - boundary%20layer%20resistance
Record 10, French
Record 10, Domaine(s)
- Biologie végétale
Record 10, Main entry term, French
- résistance dans la couche limite d'air
1, record 10, French, r%C3%A9sistance%20dans%20la%20couche%20limite%20d%27air
correct, feminine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
Record 10, Textual support, French
Record number: 10, Textual support number: 1 CONT
Cette absorption [de gaz carbonique] dépend aussi des résistances au transfert gazeux. On en distingue habituellement quatre : la résistance dans la couche limite d'air au voisinage de la feuille, la résistance stomatique, la résistance au transfert dans les tissus de la feuille ou mésophylle et la résistance à la carboxylation de nature chimique. 1, record 10, French, - r%C3%A9sistance%20dans%20la%20couche%20limite%20d%27air
Record 10, Spanish
Record 10, Textual support, Spanish
Record 11 - internal organization data 2010-03-01
Record 11, English
Record 11, Subject field(s)
- Aerodynamics and Theory of Gases
Record 11, Main entry term, English
- shock train
1, record 11, English, shock%20train
correct
Record 11, Abbreviations, English
Record 11, Synonyms, English
Record 11, Textual support, English
Record number: 11, Textual support number: 1 CONT
When a normal shock wave interacts with a boundary layer along a wall surface in supersonic internal flows and the shock is strong enough to separate the boundary layer, the shock is bifurcated and a series of shocks called "shock train" is formed. 1, record 11, English, - shock%20train
Record 11, French
Record 11, Domaine(s)
- Théorie des gaz et aérodynamique
Record 11, Main entry term, French
- train de chocs
1, record 11, French, train%20de%20chocs
masculine noun
Record 11, Abbreviations, French
Record 11, Synonyms, French
Record 11, Textual support, French
Record 11, Spanish
Record 11, Textual support, Spanish
Record 12 - internal organization data 2005-05-27
Record 12, English
Record 12, Subject field(s)
- Oceanography
- Hydrology and Hydrography
- Meteorology
Record 12, Main entry term, English
- wind-driven oceanic circulation
1, record 12, English, wind%2Ddriven%20oceanic%20circulation
correct
Record 12, Abbreviations, English
Record 12, Synonyms, English
Record 12, Textual support, English
Record number: 12, Textual support number: 1 DEF
Horizontal water motion of the ocean due to the stress exerted on its surface by the wind. 2, record 12, English, - wind%2Ddriven%20oceanic%20circulation
Record number: 12, Textual support number: 1 CONT
The main principles of wind-driven ocean circulation are as follows. 1. Wind stress causes transport of water in a thin Ekman surface layer. 2. If there is a curl to the wind stress, the Ekman layer transport will converge or diverge, causing downwelling or upwelling. 3. The downwelling or upwelling motions cause fluid columns to squash or stretch vertically, and this causes slow southward or northward flow due to conservation of potential vorticity. 4. The southward or northward flow is determined by the Sverdrup relationship, which links the N-S transport of water with the curl of the wind stress. In order to conserve mass, the water returns to its original position via a relatively thin boundary layer adjacent to the western edge of the basin. 3, record 12, English, - wind%2Ddriven%20oceanic%20circulation
Record 12, Key term(s)
- wind driven oceanic circulation
Record 12, French
Record 12, Domaine(s)
- Océanographie
- Hydrologie et hydrographie
- Météorologie
Record 12, Main entry term, French
- circulation océanique induite par le vent
1, record 12, French, circulation%20oc%C3%A9anique%20induite%20par%20le%20vent
correct, feminine noun
Record 12, Abbreviations, French
Record 12, Synonyms, French
Record 12, Textual support, French
Record number: 12, Textual support number: 1 DEF
Mouvement horizontal de l'eau océanique dû à la contrainte exercée par le vent sur sa surface. 1, record 12, French, - circulation%20oc%C3%A9anique%20induite%20par%20le%20vent
Record 12, Spanish
Record 12, Campo(s) temático(s)
- Oceanografía
- Hidrología e hidrografía
- Meteorología
Record 12, Main entry term, Spanish
- circulación oceánica ocasionada por el viento
1, record 12, Spanish, circulaci%C3%B3n%20oce%C3%A1nica%20ocasionada%20por%20el%20viento
feminine noun
Record 12, Abbreviations, Spanish
Record 12, Synonyms, Spanish
Record 12, Textual support, Spanish
Record number: 12, Textual support number: 1 DEF
Movimiento horizontal del agua oceánica debido a la tensión ejercida por el viento sobre su superficie. 1, record 12, Spanish, - circulaci%C3%B3n%20oce%C3%A1nica%20ocasionada%20por%20el%20viento
Record 13 - internal organization data 2005-05-25
Record 13, English
Record 13, Subject field(s)
- Industrial Techniques and Processes
- Food Industries
Record 13, Main entry term, English
- concentration polarisation 1, record 13, English, concentration%20polarisation
Record 13, Abbreviations, English
Record 13, Synonyms, English
Record 13, Textual support, English
Record number: 13, Textual support number: 1 CONT
Concentration polarization is the development of a concentration gradient across the boundary layer near the membrane surface. 1, record 13, English, - concentration%20polarisation
Record 13, Key term(s)
- concentration polarization
Record 13, French
Record 13, Domaine(s)
- Techniques industrielles
- Industrie de l'alimentation
Record 13, Main entry term, French
- polarisation de concentration
1, record 13, French, polarisation%20de%20concentration
correct, feminine noun
Record 13, Abbreviations, French
Record 13, Synonyms, French
- concentration par polarisation 1, record 13, French, concentration%20par%20polarisation
correct, feminine noun
- concentration de polarisation 1, record 13, French, concentration%20de%20polarisation
avoid, feminine noun
Record 13, Textual support, French
Record number: 13, Textual support number: 1 DEF
Phénomène qui se produit toujours quand on effectue une séparation de substances macromoléculaires, moléculaires ou ioniques par une membrane et qui conduit à la formation, au voisinage de la face amont de la membrane, d'une couche dans laquelle se crée un gradient de concentration (Norme AFNOR). 1, record 13, French, - polarisation%20de%20concentration
Record number: 13, Textual support number: 1 OBS
Dans certains cas, ce phénomène conduit à la formation d'un gel. 1, record 13, French, - polarisation%20de%20concentration
Record number: 13, Textual support number: 2 OBS
La polarisation de concentration crée une résistance supplémentaire au transfert de matière. Pour réduire ce phénomène, on peut modifier les caractéristiques hydrodynamiques de l'écoulement. 1, record 13, French, - polarisation%20de%20concentration
Record number: 13, Textual support number: 3 OBS
La polarisation de concentration représente aujourd'hui le frein principal en séparation membranaire. Elle peut conduire à une diminution considérable des performances des appareils (osmose inverse, ultrafiltration et microfiltration tangentielle) en diminuant le flux de perméat. 1, record 13, French, - polarisation%20de%20concentration
Record number: 13, Textual support number: 4 OBS
concentration de polarisation : Le terme «concentration de polarisation» est déconseillé. C'est une mauvaise traduction de l'anglais «concentration polarisation». 1, record 13, French, - polarisation%20de%20concentration
Record 13, Spanish
Record 13, Textual support, Spanish
Record 14 - internal organization data 2005-05-16
Record 14, English
Record 14, Subject field(s)
- Atmospheric Physics
Record 14, Main entry term, English
- nocturnal boundary layer
1, record 14, English, nocturnal%20boundary%20layer
correct
Record 14, Abbreviations, English
- NBL 2, record 14, English, NBL
correct
Record 14, Synonyms, English
Record 14, Textual support, English
Record number: 14, Textual support number: 1 DEF
The cool layer of air adjacent to the ground that forms at night. 3, record 14, English, - nocturnal%20boundary%20layer
Record number: 14, Textual support number: 1 CONT
The boundary layer from sunset to sunrise is called the nocturnal boundary layer. It is often characterized by a stable layer, which forms when the solar heating ends and the radiative cooling and surface friction stabilize the lowest part of the ABL [atmospheric boundary layer]. Above that, the remnants of the daytime CBL [convective boundary layer] form a residual layer. The nocturnal boundary layer may also be convective when cold air advects over a warm surface. 4, record 14, English, - nocturnal%20boundary%20layer
Record number: 14, Textual support number: 1 OBS
Many interacting processes can occur within the statically stable nocturnal boundary layer: patchy sporadic turbulence, internal gravity waves, drainage flows, inertial oscillations, and nocturnal jets. 3, record 14, English, - nocturnal%20boundary%20layer
Record 14, French
Record 14, Domaine(s)
- Physique de l'atmosphère
Record 14, Main entry term, French
- couche limite nocturne
1, record 14, French, couche%20limite%20nocturne
correct, feminine noun
Record 14, Abbreviations, French
- CLN 2, record 14, French, CLN
feminine noun
Record 14, Synonyms, French
Record 14, Textual support, French
Record number: 14, Textual support number: 1 DEF
[...] couche d'air subsuperficielle qui se forme [près du sol] durant les nuits calmes. 3, record 14, French, - couche%20limite%20nocturne
Record number: 14, Textual support number: 1 CONT
De nuit, par ciel dégagé, la surface du sol devient plus froide que l'air, par refroidissement radiatif, et une couche limite nocturne (CLN) s'installe. Cette couche est dite «stable», ou stratifiée, car le gradient thermique positif agit contre la turbulence. Une CLN peu stratifiée est caractérisée par une turbulence relativement homogène. 2, record 14, French, - couche%20limite%20nocturne
Record number: 14, Textual support number: 2 CONT
D'un point de vue météorologique, la faible dispersion de la couche limite nocturne est classique des situations non perturbées, et de manière plus marquée en période estivale qu'hivernale. 4, record 14, French, - couche%20limite%20nocturne
Record 14, Spanish
Record 14, Textual support, Spanish
Record 15 - internal organization data 2005-04-25
Record 15, English
Record 15, Subject field(s)
- Atmospheric Physics
Record 15, Main entry term, English
- thermal stratification
1, record 15, English, thermal%20stratification
correct
Record 15, Abbreviations, English
Record 15, Synonyms, English
- thermal stratification of the atmosphere 2, record 15, English, thermal%20stratification%20of%20the%20atmosphere
correct
- atmospheric thermal stratification 3, record 15, English, atmospheric%20thermal%20stratification
correct
Record 15, Textual support, English
Record number: 15, Textual support number: 1 DEF
The layering of different temperatures of ... air caused by different densities, less dense floating on more dense layers. 4, record 15, English, - thermal%20stratification
Record number: 15, Textual support number: 1 CONT
Thermal stratification of the atmosphere is characteristic of the Nocturnal Boundary Layer(NBL), particularly in basin topography where surface cooling combines with drainage flows from competing sources to create a complex thermal structure that can play an important role in transport and diffusion of pollution. 5, record 15, English, - thermal%20stratification
Record number: 15, Textual support number: 2 CONT
Atmospheric stability describes the thermal stratification or vertical temperature structure of the atmosphere. Generally, six or seven different classes of atmospheric stability are used to describe the atmosphere. These classes range from extremely unstable (when atmospheric turbulence is greatest) to extremely stable (when atmospheric mixing is at a minimum and wind speeds are low). When the atmosphere is unstable, pollutants can rapidly diffuse through a large volume of the atmosphere. When the atmosphere is stable, pollutants will diffuse much more slowly in a vertical direction 6, record 15, English, - thermal%20stratification
Record number: 15, Textual support number: 1 PHR
Mean, stable, vertical thermal stratification of the atmosphere, 7, record 15, English, - thermal%20stratification
Record number: 15, Textual support number: 2 PHR
Lower, stable, unstable, weak, atmospheric thermal stratification. 7, record 15, English, - thermal%20stratification
Record 15, French
Record 15, Domaine(s)
- Physique de l'atmosphère
Record 15, Main entry term, French
- stratification thermique
1, record 15, French, stratification%20thermique
correct, feminine noun
Record 15, Abbreviations, French
Record 15, Synonyms, French
- stratification thermique de l'atmosphère 2, record 15, French, stratification%20thermique%20de%20l%27atmosph%C3%A8re
correct, feminine noun
- stratification thermique de l'air 3, record 15, French, stratification%20thermique%20de%20l%27air
correct, feminine noun
Record 15, Textual support, French
Record number: 15, Textual support number: 1 CONT
L'inversion de température [...] affecte les 50 premiers mètres de la troposphère. Avec la nuit, surtout en hiver, le sol se refroidit plus rapidement que les couches d'air. Au cours de la nuit les premières couches d'air vont peu à peu devenir plus froide que celle située au dessus, la stratification thermique (plus on monte, plus il fait froid) est donc inversée. 4, record 15, French, - stratification%20thermique
Record number: 15, Textual support number: 2 CONT
La stratification thermique de l'air est importante pour la compréhension de la dispersion des polluants. Si la température diminue de façon constante avec l'altitude, l'atmosphère est alors dite instable, le polluant se disperse davantage en hauteur. S'il se met en place une couche d'inversion, c'est à dire que la température augmente de nouveau en altitude, l'atmosphère est dite stable. Si le polluant est émis en dessous de cette limite d'inversion, dans la couche limite atmosphérique, le polluant sera bloqué dans sa progression verticale, tandis que s'il est émis au dessus, sa dispersion vers le sol sera bloquée. 5, record 15, French, - stratification%20thermique
Record number: 15, Textual support number: 3 CONT
Les échanges verticaux entre les différentes couches de l'atmosphère sont limités par la stratification thermique de l'atmosphère et par les différents régimes de vents. 2, record 15, French, - stratification%20thermique
Record number: 15, Textual support number: 1 PHR
Stratification thermique horizontale, instable, inverse, verticale. 6, record 15, French, - stratification%20thermique
Record 15, Spanish
Record 15, Textual support, Spanish
Record 16 - internal organization data 2005-04-18
Record 16, English
Record 16, Subject field(s)
- Meteorological Forecasting, Data Measurement and Analysis
Record 16, Main entry term, English
- surface flux
1, record 16, English, surface%20flux
correct
Record 16, Abbreviations, English
Record 16, Synonyms, English
Record 16, Textual support, English
Record number: 16, Textual support number: 1 DEF
Flux of energy or gas/particles between the atmosphere and the Earth’s surface. 2, record 16, English, - surface%20flux
Record number: 16, Textual support number: 1 CONT
The fluxes between the Earth's surface and the atmosphere are usually called surface fluxes. Many processes are involved such as evaporation from land and sea, warming and cooling of the earth, emission and deposition of gases and particles. These processes are vital to life and are being investigated in various scientific fields such as agriculture, bioclimatology, hydrology and meteorology. Surface fluxes traditionally are measured by instruments mounted on meteorological masts. Typical measurement data are wind speed, air temperature, air humidity and concentration of gases(eg CO2) and particles at several levels above ground. Calculation of surface fluxes are done by classical similarity-scaling equations on turbulent flow in the atmospheric boundary layer. This method applies only for large homogeneous landscapes(of the order of kilometers). 3, record 16, English, - surface%20flux
Record number: 16, Textual support number: 2 CONT
Changes in surface fluxes (of momentum, heat, and mass) downwind of a surface roughness change, are related to changes in mean profiles (of velocity, temperature, and concentration). 4, record 16, English, - surface%20flux
Record number: 16, Textual support number: 3 CONT
Surface fluxes measured within the ASL [Atmospheric Surface Layer] represent the exchange between the surface and the atmosphere ... 2, record 16, English, - surface%20flux
Record number: 16, Textual support number: 4 CONT
Surface fluxes above ecosystems reflect variations in incoming and outgoing energy and in the metabolic activity of vegetation and soil microbes. 2, record 16, English, - surface%20flux
Record 16, French
Record 16, Domaine(s)
- Prévisions météorologiques et mesure et analyse des données
Record 16, Main entry term, French
- flux de surface
1, record 16, French, flux%20de%20surface
correct, masculine noun
Record 16, Abbreviations, French
Record 16, Synonyms, French
Record 16, Textual support, French
Record number: 16, Textual support number: 1 CONT
En ce qui concerne la température, le flux de surface se compose du flux de chaleur sensible [...], du flux de chaleur latente [...] et du flux radiatif de grandes longueurs d'ondes [...] 2, record 16, French, - flux%20de%20surface
Record number: 16, Textual support number: 2 CONT
Écologie fonctionnelle et physique de l'environnement. [...] Sont développées dans le cadre de cette activité des méthodes d'estimation et de spatialisation des flux de surface (chaleur sensible, évaporation) à diverses échelles, à partir de données satellitaires (infrarouge thermique et micro-ondes). 3, record 16, French, - flux%20de%20surface
Record number: 16, Textual support number: 3 CONT
Les stations de flux de surface [...] mesurent les quantités d'eau échangées entre la surface et l'atmosphère (par exemple la quantité d'eau que perdent les plantes par évaporation) pour comprendre comment le continent réchauffe l'atmosphère. Concrètement, ces stations mesurent l'humidité de l'air et le vent toute les millisecondes. 4, record 16, French, - flux%20de%20surface
Record 16, Spanish
Record 16, Textual support, Spanish
Record 17 - internal organization data 2005-04-15
Record 17, English
Record 17, Subject field(s)
- Meteorological Forecasting, Data Measurement and Analysis
Record 17, Main entry term, English
- kinematic heat flux
1, record 17, English, kinematic%20heat%20flux
correct
Record 17, Abbreviations, English
Record 17, Synonyms, English
- kinematic flux of heat 1, record 17, English, kinematic%20flux%20of%20heat
Record 17, Textual support, English
Record number: 17, Textual support number: 1 CONT
The surface layer is the shallow fraction of the PBL [planetary boundary layer] near the surface where the fluxes are approximately equal to the surface values. The surface layer is therefore often called the constant flux layer.... The relevant parameters in the surface layer for the wind profiles are the momentum flux, the buoyancy flux and height above the surface... The height above the surface is the length scale for turbulence because the size of the transporting eddies is confined by their distance from the surface. If the potential temperature and specific humidity are considered, we also need the kinematic fluxes of heat and moisture... 1, record 17, English, - kinematic%20heat%20flux
Record 17, French
Record 17, Domaine(s)
- Prévisions météorologiques et mesure et analyse des données
Record 17, Main entry term, French
- flux de chaleur cinématique
1, record 17, French, flux%20de%20chaleur%20cin%C3%A9matique
masculine noun
Record 17, Abbreviations, French
Record 17, Synonyms, French
Record 17, Textual support, French
Record 17, Spanish
Record 17, Textual support, Spanish
Record 18 - internal organization data 2005-04-12
Record 18, English
Record 18, Subject field(s)
- Geophysics
- Plate Tectonics
Record 18, Main entry term, English
- thermal boundary layer
1, record 18, English, thermal%20boundary%20layer
correct
Record 18, Abbreviations, English
- TBL 2, record 18, English, TBL
correct
Record 18, Synonyms, English
Record 18, Textual support, English
Record number: 18, Textual support number: 1 DEF
A layer across which there is a significant temperature difference and the heat transfer is primarily via heat conduction, for example, the oceanic lithosphere. 2, record 18, English, - thermal%20boundary%20layer
Record number: 18, Textual support number: 1 CONT
There is another possible definition for the lithosphere : it is the thermal boundary layer of mantle convection, i. e. the surface layer where heat is transported by conduction rather than advection. 3, record 18, English, - thermal%20boundary%20layer
Record number: 18, Textual support number: 2 CONT
For a cooling Earth, the lithosphere is then a thermal boundary layer which is cooler and denser than the underlying asthenosphere. 4, record 18, English, - thermal%20boundary%20layer
Record 18, French
Record 18, Domaine(s)
- Géophysique
- Tectonique des plaques
Record 18, Main entry term, French
- couche limite thermique
1, record 18, French, couche%20limite%20thermique
correct, feminine noun
Record 18, Abbreviations, French
- CLT 2, record 18, French, CLT
feminine noun
Record 18, Synonyms, French
- couche-limite thermique 3, record 18, French, couche%2Dlimite%20thermique
feminine noun
Record 18, Textual support, French
Record number: 18, Textual support number: 1 CONT
La lithosphère est l'enveloppe la plus externe de la Terre qui comprend la croûte et une partie du manteau sous-jacent. On distingue trois lithosphères, thermique, chimique et mécanique. La lithosphère thermique est caractérisée par une forte augmentation de la température avec la profondeur, contrairement au manteau sous-jacent qui est quasiment à une température uniforme. Elle correspond à la couche limite thermique supérieure du manteau en convection. [...] La lithosphère thermique est par définition la couche limite thermique supérieure du domaine convectif [...] 4, record 18, French, - couche%20limite%20thermique
Record number: 18, Textual support number: 2 CONT
La région se trouvant entre le noyau et le manteau est appelée la «couche D» qui est uniquement conductrice de chaleur; une région conductrice séparée par deux zones convectives est appelée une couche-limite thermique. Dans de telles zones, se développent des hétérogénéités thermiques mais aussi des hétérogénéités dans la structure (la vitesse des ondes élastiques n'augmente pas autant que dans le reste du manteau inférieur). 5, record 18, French, - couche%20limite%20thermique
Record 18, Spanish
Record 18, Textual support, Spanish
Record 19 - internal organization data 2005-04-11
Record 19, English
Record 19, Subject field(s)
- Fluid Mechanics and Hydraulics (Physics)
- Meteorology
- Modelling (Mathematics)
Record 19, Main entry term, English
- thermal boundary layer
1, record 19, English, thermal%20boundary%20layer
correct
Record 19, Abbreviations, English
Record 19, Synonyms, English
Record 19, Textual support, English
Record number: 19, Textual support number: 1 CONT
Boundary Layers. A consequence of any fluid-surface interaction(as is found in convective heat transfer) is the development of a region in the fluid through which the velocity varies from zero at the surface to a finite value... associated with the flow. This region is known as the hydrodynamic, or velocity boundary layer. If there is a difference in the surface and flow temperatures, there will also develop a region in the fluid through which the temperature varies... in the outer flow... This region, called the thermal boundary layer, may be smaller, larger or the same size as that through which the velocity varies. 2, record 19, English, - thermal%20boundary%20layer
Record 19, French
Record 19, Domaine(s)
- Mécanique des fluides et hydraulique (Physique)
- Météorologie
- Modélisation (Mathématique)
Record 19, Main entry term, French
- couche limite thermique
1, record 19, French, couche%20limite%20thermique
correct, feminine noun
Record 19, Abbreviations, French
Record 19, Synonyms, French
Record 19, Textual support, French
Record number: 19, Textual support number: 1 CONT
Couches limites et dynamiques. Quel que soit le régime d'écoulement, il demeure une sous-couche laminaire (couche limite dynamique) dont l'épaisseur est d'autant plus réduite que le nombre de Reynolds est grand. L'épaisseur de cette couche limite varie en fonction de nombreux paramètres : nature du fluide, température, rugosité de la paroi... L'analogie de Reynolds montre que le gradient thermique est particulièrement important au voisinage de la paroi, c'est à dire dans la sous-couche laminaire. Quel que soit le régime d'écoulement du fluide, on considère que la résistance thermique est entièrement située dans le film laminaire qui joue le rôle d'isolant thermique (couche limite thermique). 2, record 19, French, - couche%20limite%20thermique
Record number: 19, Textual support number: 2 CONT
Convection forcée externe. Le modèle de la couche limite appliqué aux transferts thermiques et aux transferts de masse (différentes espèces). Couche limite mécanique, couche limite thermique, couche limite massique. 3, record 19, French, - couche%20limite%20thermique
Record 19, Spanish
Record 19, Textual support, Spanish
Record 20 - internal organization data 2004-11-08
Record 20, English
Record 20, Subject field(s)
- Atmospheric Physics
- Physical Geography (General)
- The Earth (Astronomy)
Record 20, Main entry term, English
- free atmosphere
1, record 20, English, free%20atmosphere
correct
Record 20, Abbreviations, English
Record 20, Synonyms, English
- free air 2, record 20, English, free%20air
correct, see observation
Record 20, Textual support, English
Record number: 20, Textual support number: 1 DEF
That part of the atmosphere above the friction layer, in which the air motion is affected negligibly by surface friction. 3, record 20, English, - free%20atmosphere
Record number: 20, Textual support number: 1 CONT
Free atmosphere [is] in meteorology, the part of the troposphere above the planetary boundary layer. It is free of the influence of the earth's surface and, on the average, slightly stable. 4, record 20, English, - free%20atmosphere
Record number: 20, Textual support number: 2 CONT
The base of the free atmosphere is usually taken as the geostrophic wind level. In practice it is observed that the geostrophic wind level is often between 1 and 2 km, and it is assumed that this marks the upper limit of frictional influence of the earth's surface. The geostrophic wind level may be considered to be the top of the Ekman layer and planetary boundary layer, that is, the base of the free atmosphere. 5, record 20, English, - free%20atmosphere
Record number: 20, Textual support number: 1 OBS
free atmosphere: Here, winds are not directly retarded by surface friction. Clouds occur most frequently in this portion of the troposphere (the exceptions are fog and clouds that impinge on or develop over elevated terrain). 6, record 20, English, - free%20atmosphere
Record number: 20, Textual support number: 2 OBS
free atmosphere: Sometimes called free air. 5, record 20, English, - free%20atmosphere
Record 20, French
Record 20, Domaine(s)
- Physique de l'atmosphère
- Géographie physique (Généralités)
- Terre (Astronomie)
Record 20, Main entry term, French
- atmosphère libre
1, record 20, French, atmosph%C3%A8re%20libre
correct, feminine noun
Record 20, Abbreviations, French
Record 20, Synonyms, French
- air libre 2, record 20, French, air%20libre
correct, masculine noun
Record 20, Textual support, French
Record number: 20, Textual support number: 1 DEF
Partie supérieure de la troposphère, située entre la couche d'Ekman et la tropopause, dans laquelle le mouvement de l'air n'est presque pas touché par le frottement de surface. 3, record 20, French, - atmosph%C3%A8re%20libre
Record number: 20, Textual support number: 1 CONT
Les forces de frottement [...] traduisent la friction turbulente de l'air sur le sol. Leur action se fait ressentir très près du sol dans une zone appelée la couche limite atmosphérique (CLA). On divise ainsi schématiquement les basses couches de l'atmosphère en deux parties distinctes avec près du sol la CLA et loin de l'influence du sol, à plusieurs centaines de mètres d'altitude, l'atmosphère libre. 4, record 20, French, - atmosph%C3%A8re%20libre
Record number: 20, Textual support number: 2 CONT
La troposphère. [...] Divisée en 2 couches, la première jusqu'à à peu près 3000m subit les facteurs géographiques. (Fortes turbulences, températures irrégulières, concentration de toutes les impuretés). La deuxième couche est l'atmosphère libre qui s'étend jusqu'à la tropopause. 5, record 20, French, - atmosph%C3%A8re%20libre
Record number: 20, Textual support number: 1 OBS
[La] couche de frottement [...] s'étend du sol jusqu'à une hauteur essentiellement variable en fonction des aspérités du sol mais que l'on peut estimer entre 600-1000m. 6, record 20, French, - atmosph%C3%A8re%20libre
Record number: 20, Textual support number: 2 OBS
couche d'Ekman: Cette couche s'étend entre huit cents mètres et une dizaine de kilomètres d'altitude. 3, record 20, French, - atmosph%C3%A8re%20libre
Record 20, Spanish
Record 20, Campo(s) temático(s)
- Física de la atmósfera
- Geografía física (Generalidades)
- Tierra (Astronomía)
Record 20, Main entry term, Spanish
- atmósfera libre
1, record 20, Spanish, atm%C3%B3sfera%20libre
correct, feminine noun
Record 20, Abbreviations, Spanish
Record 20, Synonyms, Spanish
Record 20, Textual support, Spanish
Record number: 20, Textual support number: 1 DEF
Parte de la atmósfera, por encima de la capa de rozamiento, en la que la influencia del rozamiento en la superficie sobre el movimiento del aire es despreciable. 2, record 20, Spanish, - atm%C3%B3sfera%20libre
Record 21 - internal organization data 2004-10-12
Record 21, English
Record 21, Subject field(s)
- Atmospheric Physics
Record 21, Main entry term, English
- transformation of an air mass
1, record 21, English, transformation%20of%20an%20air%20mass
correct
Record 21, Abbreviations, English
Record 21, Synonyms, English
- airmass transformation 2, record 21, English, airmass%20transformation
correct
- air-mass transformation 3, record 21, English, air%2Dmass%20transformation
correct
- air mass transformation 4, record 21, English, air%20mass%20transformation
correct
Record 21, Textual support, English
Record number: 21, Textual support number: 1 DEF
Modification, by physical or dynamical processes, of the properties of an air mass such that they become those of a different air mass. 5, record 21, English, - transformation%20of%20an%20air%20mass
Record number: 21, Textual support number: 1 CONT
The summer Arctic boundary layer, with its small diurnal cycle and absence of topography, will be ideal for studying turbulent transport and the interaction between turbulence and atmospheric gravity waves.... the long advection over a homogeneous surface allows a study of airmass transformation from marine to arctic conditions. 2, record 21, English, - transformation%20of%20an%20air%20mass
Record 21, Key term(s)
- transformation of an airmass
- transformation of an air-mass
Record 21, French
Record 21, Domaine(s)
- Physique de l'atmosphère
Record 21, Main entry term, French
- transformation d'une masse d'air
1, record 21, French, transformation%20d%27une%20masse%20d%27air
correct, feminine noun
Record 21, Abbreviations, French
Record 21, Synonyms, French
Record 21, Textual support, French
Record number: 21, Textual support number: 1 DEF
Modification, par des processus physiques ou dynamiques, des propriétés d'une masse d'air jusqu'à lui conférer les propriétés caractéristiques d'une autre masse d'air. 2, record 21, French, - transformation%20d%27une%20masse%20d%27air
Record 21, Spanish
Record 21, Campo(s) temático(s)
- Física de la atmósfera
Record 21, Main entry term, Spanish
- transformación de una masa de aire
1, record 21, Spanish, transformaci%C3%B3n%20de%20una%20masa%20de%20aire
feminine noun
Record 21, Abbreviations, Spanish
Record 21, Synonyms, Spanish
Record 21, Textual support, Spanish
Record number: 21, Textual support number: 1 DEF
Modificación de las características de una masa de aire producida por procesos físicos o dinámicos que le confieren propiedades de otro tipo de masa de aire. 1, record 21, Spanish, - transformaci%C3%B3n%20de%20una%20masa%20de%20aire
Record 22 - internal organization data 2004-04-07
Record 22, English
Record 22, Subject field(s)
- Modelling (Mathematics)
- Atmospheric Physics
Record 22, Main entry term, English
- power law profile
1, record 22, English, power%20law%20profile
correct
Record 22, Abbreviations, English
Record 22, Synonyms, English
Record 22, Textual support, English
Record number: 22, Textual support number: 1 DEF
Mathematical representation of the mean wind speed in the surface boundary layer as some power of height. 1, record 22, English, - power%20law%20profile
Record number: 22, Textual support number: 1 OBS
This type of profile, though a less satisfactory representation of the observed wind than the logarithmic velocity profile, is often easier to handle mathematically. 1, record 22, English, - power%20law%20profile
Record 22, French
Record 22, Domaine(s)
- Modélisation (Mathématique)
- Physique de l'atmosphère
Record 22, Main entry term, French
- profil externe d'une fonction de puissance
1, record 22, French, profil%20externe%20d%27une%20fonction%20de%20puissance
correct, masculine noun
Record 22, Abbreviations, French
Record 22, Synonyms, French
Record 22, Textual support, French
Record number: 22, Textual support number: 1 DEF
Représentation mathématique de la vitesse moyenne du vent dans la couche limite de surface en fonction d'une puissance de la hauteur. 1, record 22, French, - profil%20externe%20d%27une%20fonction%20de%20puissance
Record number: 22, Textual support number: 1 OBS
Ce type de profil, bien que représentant le vent observé de façon moins satisfaisante que le profil de vitesse logarithmique, est souvent plus facile à manier du point de vue mathématique. 1, record 22, French, - profil%20externe%20d%27une%20fonction%20de%20puissance
Record 22, Spanish
Record 22, Campo(s) temático(s)
- Modelización (Matemáticas)
- Física de la atmósfera
Record 22, Main entry term, Spanish
- perfil de la ley de potencias
1, record 22, Spanish, perfil%20de%20la%20ley%20de%20potencias
correct, masculine noun
Record 22, Abbreviations, Spanish
Record 22, Synonyms, Spanish
Record 22, Textual support, Spanish
Record number: 22, Textual support number: 1 DEF
Representación matemática de la velocidad media del viento en la capa límite superficial en función de una potencia de la altura. 1, record 22, Spanish, - perfil%20de%20la%20ley%20de%20potencias
Record number: 22, Textual support number: 1 OBS
Este tipo de perfil, aunque representa el viento observado de modo menos satisfactorio que el perfil logarítmico de la velocidad, es más fácil de manejar matemáticamente. 1, record 22, Spanish, - perfil%20de%20la%20ley%20de%20potencias
Record 23 - internal organization data 2004-01-06
Record 23, English
Record 23, Subject field(s)
- Ecology (General)
- Ecosystems
Record 23, Main entry term, English
- hyponeuston
1, record 23, English, hyponeuston
correct
Record 23, Abbreviations, English
Record 23, Synonyms, English
Record 23, Textual support, English
Record number: 23, Textual support number: 1 CONT
There is also a surface film community(neuston) which, when richly developed, forms a ’water bloom’. This only occurs on small bodies of water where the surface is protected from wind. The algae, together with some bacteria and invertebrates, become attached to the boundary layer between the air and water, either on the upper surface of the water(epineuston) or on the under surface(hyponeuston). 2, record 23, English, - hyponeuston
Record number: 23, Textual support number: 2 CONT
[the hyponeuston] are associated with the underside of the film and project into the water below. 2, record 23, English, - hyponeuston
Record 23, French
Record 23, Domaine(s)
- Écologie (Généralités)
- Écosystèmes
Record 23, Main entry term, French
- hyponeuston
1, record 23, French, hyponeuston
correct, masculine noun
Record 23, Abbreviations, French
Record 23, Synonyms, French
Record 23, Textual support, French
Record number: 23, Textual support number: 1 DEF
Ensemble des organismes neustoniques qui vivent au-dessous de l'interface air-eau. 2, record 23, French, - hyponeuston
Record number: 23, Textual support number: 1 CONT
On désigne sous le nom général de neuston le peuplement de l'interface océan-atmosphère. On peut y distinguer un épineuston, représenté par des animaux qui sont sur l'interface [...] et un hyponeuston qui habite les premiers centimètres d'eau. 3, record 23, French, - hyponeuston
Record 23, Spanish
Record 23, Campo(s) temático(s)
- Ecología (Generalidades)
- Ecosistemas
Record 23, Main entry term, Spanish
- hiponeuston
1, record 23, Spanish, hiponeuston
correct, masculine noun
Record 23, Abbreviations, Spanish
Record 23, Synonyms, Spanish
Record 23, Textual support, Spanish
Record number: 23, Textual support number: 1 DEF
Comunidad acuática formada por organismos que tienen todo el cuerpo dentro del agua. 1, record 23, Spanish, - hiponeuston
Record 24 - internal organization data 2003-12-22
Record 24, English
Record 24, Subject field(s)
- Atmospheric Physics
- Modelling (Mathematics)
Record 24, Main entry term, English
- logarithmic velocity profile
1, record 24, English, logarithmic%20velocity%20profile
correct
Record 24, Abbreviations, English
Record 24, Synonyms, English
Record 24, Textual support, English
Record number: 24, Textual support number: 1 DEF
Form of the variation of the mean wind speed with height in the surface boundary layer, based on simplifying assumptions. 2, record 24, English, - logarithmic%20velocity%20profile
Record 24, Key term(s)
- logarithmic profile of velocity
Record 24, French
Record 24, Domaine(s)
- Physique de l'atmosphère
- Modélisation (Mathématique)
Record 24, Main entry term, French
- profil logarithmique des vitesses
1, record 24, French, profil%20logarithmique%20des%20vitesses
correct, masculine noun
Record 24, Abbreviations, French
Record 24, Synonyms, French
- profil logarithmique de la vitesse 2, record 24, French, profil%20logarithmique%20de%20la%20vitesse
masculine noun
Record 24, Textual support, French
Record number: 24, Textual support number: 1 DEF
Allure de la variation de la vitesse moyenne du vent avec l'altitude dans la couche limite de surface, selon des hypothèses simplificatrices. 3, record 24, French, - profil%20logarithmique%20des%20vitesses
Record 24, Spanish
Record 24, Campo(s) temático(s)
- Física de la atmósfera
- Modelización (Matemáticas)
Record 24, Main entry term, Spanish
- perfil logarítmico de la velocidad
1, record 24, Spanish, perfil%20logar%C3%ADtmico%20de%20la%20velocidad
masculine noun
Record 24, Abbreviations, Spanish
Record 24, Synonyms, Spanish
Record 24, Textual support, Spanish
Record number: 24, Textual support number: 1 DEF
Forma, basada en ciertas hipótesis simplificadoras, de la variación de la velocidad media del viento con la altitud en la capa límite de la superficie. 1, record 24, Spanish, - perfil%20logar%C3%ADtmico%20de%20la%20velocidad
Record 25 - internal organization data 2003-09-11
Record 25, English
Record 25, Subject field(s)
- Atmospheric Physics
- The Earth (Astronomy)
- Space Physics
Record 25, Main entry term, English
- exosphere
1, record 25, English, exosphere
correct, standardized
Record 25, Abbreviations, English
Record 25, Synonyms, English
- outer atmosphere 2, record 25, English, outer%20atmosphere
- outersphere 3, record 25, English, outersphere
- region of escape 4, record 25, English, region%20of%20escape
Record 25, Textual support, English
Record number: 25, Textual support number: 1 DEF
[The outermost] region of the [Earth’s] atmosphere above about 500 km from which the lighter gases may escape to space. 5, record 25, English, - exosphere
Record number: 25, Textual support number: 1 CONT
The exosphere is the uppermost layer of the atmosphere. On Earth, its lower boundary is estimated at 500 km to 1000 km above the Earth's surface, and its upper boundary at about 10, 000 km. It is only from the exosphere that atmospheric gases can, to any appreciable extent, escape into outer space. 6, record 25, English, - exosphere
Record number: 25, Textual support number: 2 CONT
The exosphere goes from about 400 miles (640 km) high to about 800 miles (1,280 km). The lower boundary of the [Earth’s] exosphere is called the critical level of escape, where atmospheric pressure is very low (the gas atoms are very widely spaced) and the temperature is very low. 7, record 25, English, - exosphere
Record number: 25, Textual support number: 3 CONT
Thermosphere and exosphere are the parts of the upper atmosphere of the Earth where artificial satellites and spacecrafts are revolving. 8, record 25, English, - exosphere
Record number: 25, Textual support number: 1 OBS
exosphere: term standardized by ISO. 9, record 25, English, - exosphere
Record 25, French
Record 25, Domaine(s)
- Physique de l'atmosphère
- Terre (Astronomie)
- Physique spatiale
Record 25, Main entry term, French
- exosphère
1, record 25, French, exosph%C3%A8re
correct, feminine noun, standardized
Record 25, Abbreviations, French
Record 25, Synonyms, French
Record 25, Textual support, French
Record number: 25, Textual support number: 1 DEF
Région [la plus élevée] de l'atmosphère [terrestre] au-dessus d'environ 500 km d'où les gaz les plus légers peuvent s'échapper vers l'espace. 2, record 25, French, - exosph%C3%A8re
Record number: 25, Textual support number: 1 CONT
L'exosphère est la dernière couche d'atmosphère terrestre qui se situe au-dessus de la thermosphère. Cette couche se définie comme la région de l'atmosphère où les collisions entre particules sont rares, considérées comme négligeables. Les atomes s'y comportent librement, certains s'échappent même dans l'espace. La base de l'exosphère (l'exobase) se situe entre 350 et 800 km d'altitude suivant la température à la thermopause, qui est liée à l'activité solaire. L'hélium et l'hydrogène y sont les éléments prépondérants. Elle s'étend jusqu'à la limite extrême de l'atmosphère, soit 50 000 kilomètres. On ne trouve plus là que quelques atomes d'hydrogène. C'est dans cette couche, que la plupart des satellites sont placés en orbite. 3, record 25, French, - exosph%C3%A8re
Record number: 25, Textual support number: 1 OBS
L'exosphère est à la limite de la thermosphère. 4, record 25, French, - exosph%C3%A8re
Record number: 25, Textual support number: 2 OBS
exosphère : terme normalisé par l'ISO. 5, record 25, French, - exosph%C3%A8re
Record 25, Spanish
Record 25, Campo(s) temático(s)
- Física de la atmósfera
- Tierra (Astronomía)
- Física espacial
Record 25, Main entry term, Spanish
- exosfera
1, record 25, Spanish, exosfera
correct, feminine noun
Record 25, Abbreviations, Spanish
Record 25, Synonyms, Spanish
Record 25, Textual support, Spanish
Record number: 25, Textual support number: 1 DEF
Región de la atmósfera, situada por encima de 500 km, desde donde se supone que los gases más ligeros pueden escapar al espacio. 2, record 25, Spanish, - exosfera
Record 26 - internal organization data 2003-09-10
Record 26, English
Record 26, Subject field(s)
- Environmental Studies and Analyses
Record 26, Main entry term, English
- sediment profile imagery
1, record 26, English, sediment%20profile%20imagery
correct
Record 26, Abbreviations, English
- SPI 1, record 26, English, SPI
correct
Record 26, Synonyms, English
Record 26, Textual support, English
Record number: 26, Textual support number: 1 CONT
SPI, or Sediment Profile Imagery, is an innovative and cost efficient method of surveying and/or monitoring lake or marine aquatic environments with a view to establishing the environmental status of these habitats or as part of a site suitability study.... SPI is based on single lens reflex(SLR) camera photography and computer-based image analysis which greatly accelerates the time required to write reports and provide relevant data to the client/legislator in a matter of weeks. SPI technology can readily quantify over 20 physical, chemical and biological parameters including : sediment grain size; prism penetration; surface pelletal layer; sediment surface relief; mud clasts; redox area; redox contrast; current apparent redox boundary; relict redox boundaries; methane gas vesicles; apparent faunal dominants; voids; burrows; surface features(e. g. worm tubes, epifauna, shell) ;dredged material; microbial aggregations; and successional stage. 1, record 26, English, - sediment%20profile%20imagery
Record 26, French
Record 26, Domaine(s)
- Études et analyses environnementales
Record 26, Main entry term, French
- imagerie de profils sédimentaires
1, record 26, French, imagerie%20de%20profils%20s%C3%A9dimentaires
correct, feminine noun
Record 26, Abbreviations, French
- IPS 1, record 26, French, IPS
correct, feminine noun
Record 26, Synonyms, French
Record 26, Textual support, French
Record number: 26, Textual support number: 1 CONT
Des photographies de profils sédimentaires obtenus de carottes prélevées à l'aide de carottiers en plexiglass Hargrave ont servi à mettre au point un moyen nouveau pour déterminer l'enrichissement en matières organiques. Des plongeurs autonomes prélèvent des carottes de sédiments pouvant aller jusqu'à 30 cm de longueur; une fois ramenées à la surface, les carottes sont photographiées, sous-échantillonnées et interprétées. L'interprétation repose sur la profondeur de discontinuité de l'oxydo-réduction et la présence ou l'absence d'organismes, de terriers et de vides, tels que révélés par les photographies numériques. On obtient ainsi un nombre intégré attribuable à l'indice d'enrichissement organique. M. Wildish a prouvé la justesse de cette méthode, appelée imagerie de profils sédimentaires (IPS), aux sites salmonicoles de la baie de Fundy et on prévoit aussi la mettre à l'essai à des installations semblables en Tasmanie (Australie). 1, record 26, French, - imagerie%20de%20profils%20s%C3%A9dimentaires
Record 26, Spanish
Record 26, Textual support, Spanish
Record 27 - internal organization data 2003-08-01
Record 27, English
Record 27, Subject field(s)
- Astrophysics and Cosmography
- Meteorology
- Air Pollution
Record 27, Main entry term, English
- Ekman layer
1, record 27, English, Ekman%20layer
correct
Record 27, Abbreviations, English
Record 27, Synonyms, English
- spiral layer 2, record 27, English, spiral%20layer
correct
Record 27, Textual support, English
Record number: 27, Textual support number: 1 DEF
The layer of transition between the surface boundary layer(where the shearing stress is constant) and the free atmosphere(where the atmosphere is treated as an ideal fluid in approximate geostrophic equilibrium). 3, record 27, English, - Ekman%20layer
Record number: 27, Textual support number: 1 CONT
The depth of the Ekman layer is on the order of a kilometer in the air and 100m in the ocean. 4, record 27, English, - Ekman%20layer
Record number: 27, Textual support number: 1 OBS
In Ekman’s analysis, the coefficient of eddy viscosity is assumed constant within this layer; subsequent calculations have relaxed this assumption. 3, record 27, English, - Ekman%20layer
Record number: 27, Textual support number: 2 OBS
Ekman layer.... Together with the surface boundary layer, it makes up the planetary boundary layer. 5, record 27, English, - Ekman%20layer
Record 27, French
Record 27, Domaine(s)
- Astrophysique et cosmographie
- Météorologie
- Pollution de l'air
Record 27, Main entry term, French
- couche d'Ekman
1, record 27, French, couche%20d%27Ekman
correct, feminine noun
Record 27, Abbreviations, French
Record 27, Synonyms, French
- couche d'Ekman atmosphérique 2, record 27, French, couche%20d%27Ekman%20atmosph%C3%A9rique
feminine noun
Record 27, Textual support, French
Record number: 27, Textual support number: 1 DEF
Partie de la troposphère située entre l'atmosphère libre et la couche limite de surface. 3, record 27, French, - couche%20d%27Ekman
Record number: 27, Textual support number: 1 OBS
Cette couche s'étend entre cent et huit cents mètres d'altitude. 3, record 27, French, - couche%20d%27Ekman
Record number: 27, Textual support number: 2 OBS
Dans l'analyse d'Ekman, le coefficient de viscosité du tourbillon est supposé constant à l'intérieur de cette couche; des calculs ultérieurs ont tempéré cette hypothèse. 4, record 27, French, - couche%20d%27Ekman
Record 27, Spanish
Record 27, Campo(s) temático(s)
- Astrofísica y cosmografía
- Meteorología
- Contaminación del aire
Record 27, Main entry term, Spanish
- capa de Ekman
1, record 27, Spanish, capa%20de%20Ekman
feminine noun
Record 27, Abbreviations, Spanish
Record 27, Synonyms, Spanish
Record 27, Textual support, Spanish
Record number: 27, Textual support number: 1 DEF
Capa de transmisión entre la capa límite superficial (en donde la tensión cortante es constante) y la atmósfera libre (en donde la atmósfera se trata como un fluido ideal en equilibrio geostrófico aproximado). 1, record 27, Spanish, - capa%20de%20Ekman
Record number: 27, Textual support number: 1 OBS
En el análisis de Ekman, el coeficiente de viscosidad de la turbulencia se supone constante en el interior de esta capa; ulteriores cálculos han relajado esa hipótesis. 1, record 27, Spanish, - capa%20de%20Ekman
Record 28 - internal organization data 2003-06-20
Record 28, English
Record 28, Subject field(s)
- Meteorology
- Fluid Mechanics and Hydraulics (Physics)
Record 28, Main entry term, English
- friction velocity
1, record 28, English, friction%20velocity
correct
Record 28, Abbreviations, English
Record 28, Synonyms, English
Record 28, Textual support, English
Record number: 28, Textual support number: 1 DEF
Reference wind velocity u[asterisk], defined by u[asterisk] = [(tau]/r)½, where [tau] is the Reynolds stress, and r, the density of the air. 2, record 28, English, - friction%20velocity
Record number: 28, Textual support number: 2 DEF
A basic wind speed parameter defined by the square root of r/p where r is the turbulent horizontal wind stress in the surface boundary layer and p is the air density there. 3, record 28, English, - friction%20velocity
Record number: 28, Textual support number: 1 OBS
... friction velocity (m/s). 4, record 28, English, - friction%20velocity
Record 28, French
Record 28, Domaine(s)
- Météorologie
- Mécanique des fluides et hydraulique (Physique)
Record 28, Main entry term, French
- vitesse de frottement
1, record 28, French, vitesse%20de%20frottement
correct, feminine noun
Record 28, Abbreviations, French
Record 28, Synonyms, French
Record 28, Textual support, French
Record number: 28, Textual support number: 1 DEF
Vitesse du vent de référence u[astérisque], définie par u[astérisque] = [(tau]/r)½, où [tau] est la tension de Reynolds et r, la densité de l'air. 2, record 28, French, - vitesse%20de%20frottement
Record number: 28, Textual support number: 1 CONT
En physique de l'environnement on utilise la notion de vitesse de frottement qui est la vitesse du vent de référence U[astérisque] 3, record 28, French, - vitesse%20de%20frottement
Record 28, Spanish
Record 28, Campo(s) temático(s)
- Meteorología
- Mecánica de fluidos e hidráulica (Física)
Record 28, Main entry term, Spanish
- velocidad de rozamiento
1, record 28, Spanish, velocidad%20de%20rozamiento
feminine noun
Record 28, Abbreviations, Spanish
Record 28, Synonyms, Spanish
Record 28, Textual support, Spanish
Record number: 28, Textual support number: 1 DEF
Velocidad del viento u[asterisco] que sirve de referencia y está definida por u[asterisco] = [(tau]/r)½, donde [tau] es la tensión de Reynolds y r la densidad. 1, record 28, Spanish, - velocidad%20de%20rozamiento
Record 29 - internal organization data 2002-04-29
Record 29, English
Record 29, Subject field(s)
- Research Experiments in Space
Record 29, Main entry term, English
- lidar in-space technology experiment
1, record 29, English, lidar%20in%2Dspace%20technology%20experiment
correct
Record 29, Abbreviations, English
- LITE 1, record 29, English, LITE
correct
Record 29, Synonyms, English
Record 29, Textual support, English
Record number: 29, Textual support number: 1 CONT
The Lidar In-Space Technology Experiment(LITE) is being developed by Nasa Langley Research Center for a series of flights on the space shuttle. Using a laser, a telescope approximately 1 meter in diameter and a modular design, the system will be used to study clouds, tropospheric and stratospheric aerosols, characteristics of the planetary boundary layer, stratospheric density and temperature pertubations, and to some degree, surface topography. 2, record 29, English, - lidar%20in%2Dspace%20technology%20experiment
Record 29, Key term(s)
- lidar in space technology experiment
Record 29, French
Record 29, Domaine(s)
- Travaux de recherche dans l'espace
Record 29, Main entry term, French
- expérience de technologie des lidars dans l'espace
1, record 29, French, exp%C3%A9rience%20de%20technologie%20des%20lidars%20dans%20l%27espace
feminine noun
Record 29, Abbreviations, French
Record 29, Synonyms, French
Record 29, Textual support, French
Record 29, Spanish
Record 29, Textual support, Spanish
Record 30 - internal organization data 2000-04-04
Record 30, English
Record 30, Subject field(s)
- Flight Controls (Aeroindustry)
Record 30, Main entry term, English
- blown flap
1, record 30, English, blown%20flap
correct, standardized
Record 30, Abbreviations, English
Record 30, Synonyms, English
Record 30, Textual support, English
Record number: 30, Textual support number: 1 DEF
A flap over the upper surface of which air or other gas is ejected with sufficient momentum to increase its effectiveness, and prevent boundary layer separation. 2, record 30, English, - blown%20flap
Record number: 30, Textual support number: 1 OBS
blown flap: term standardized by ISO. 3, record 30, English, - blown%20flap
Record 30, French
Record 30, Domaine(s)
- Commandes de vol (Constructions aéronautiques)
Record 30, Main entry term, French
- volet soufflé
1, record 30, French, volet%20souffl%C3%A9
correct, masculine noun
Record 30, Abbreviations, French
Record 30, Synonyms, French
- volet à soufflage 2, record 30, French, volet%20%C3%A0%20soufflage
correct, masculine noun, standardized
Record 30, Textual support, French
Record number: 30, Textual support number: 1 CONT
Ce nouvel appareil [...] serait propulsé par des Rolls-Royce Spey et doté de volets soufflés ainsi que de dispositifs d'orientation de la poussée. 3, record 30, French, - volet%20souffl%C3%A9
Record number: 30, Textual support number: 1 OBS
Depuis l'avènement des moteurs à réaction, pour souffler sur les volets encore plus énergiquement que par l'effet naturel des fentes, on dispose d'air comprimé prélevé sur le compresseur du moteur; une autre solution consiste à souffler directement sur les volets le flux d'air issu des réacteurs. 4, record 30, French, - volet%20souffl%C3%A9
Record number: 30, Textual support number: 2 OBS
volet à soufflage : terme normalisé par l'ISO. 5, record 30, French, - volet%20souffl%C3%A9
Record 30, Spanish
Record 30, Campo(s) temático(s)
- Mandos de vuelo (Industria aeronáutica)
Record 30, Main entry term, Spanish
- flap soplado
1, record 30, Spanish, flap%20soplado
correct, masculine noun
Record 30, Abbreviations, Spanish
Record 30, Synonyms, Spanish
- flap de soplado 2, record 30, Spanish, flap%20de%20soplado
correct, masculine noun
Record 30, Textual support, Spanish
Record 31 - internal organization data 2000-02-25
Record 31, English
Record 31, Subject field(s)
- Atmospheric Physics
- Aircraft Piloting and Navigation
- Air Pollution
Record 31, Main entry term, English
- small-scale turbulence
1, record 31, English, small%2Dscale%20turbulence
correct, standardized
Record 31, Abbreviations, English
Record 31, Synonyms, English
- small scale turbulence 2, record 31, English, small%20scale%20turbulence
correct
- small-scale atmospheric turbulence 3, record 31, English, small%2Dscale%20atmospheric%20turbulence
Record 31, Textual support, English
Record number: 31, Textual support number: 1 CONT
Small-scale atmospheric turbulence is evident in the fluctuations of wind speed and direction recorded by an anemograph. Such fluctuations are greatest within the atmospheric boundary layer’ and are much influenced by the nature of the surface over which the air flows and by other factors such as the degree of static stability of the air. 3, record 31, English, - small%2Dscale%20turbulence
Record number: 31, Textual support number: 1 OBS
small-scale turbulence : term standardized by ISO. 4, record 31, English, - small%2Dscale%20turbulence
Record 31, French
Record 31, Domaine(s)
- Physique de l'atmosphère
- Pilotage et navigation aérienne
- Pollution de l'air
Record 31, Main entry term, French
- turbulence à petite échelle
1, record 31, French, turbulence%20%C3%A0%20petite%20%C3%A9chelle
correct, feminine noun, standardized
Record 31, Abbreviations, French
Record 31, Synonyms, French
Record 31, Textual support, French
Record number: 31, Textual support number: 1 OBS
turbulence à petite échelle : terme normalisé par l'ISO. 2, record 31, French, - turbulence%20%C3%A0%20petite%20%C3%A9chelle
Record 31, Spanish
Record 31, Textual support, Spanish
Record 32 - internal organization data 1997-03-20
Record 32, English
Record 32, Subject field(s)
- General Vocabulary
Record 32, Main entry term, English
- Kelvin wave 1, record 32, English, Kelvin%20wave
Record 32, Abbreviations, English
Record 32, Synonyms, English
Record 32, Textual support, English
Record number: 32, Textual support number: 1 DEF
Kelvin wave movement of boundary layer between two thermal layers beneath the surface. 2, record 32, English, - Kelvin%20wave
Record 32, French
Record 32, Domaine(s)
- Vocabulaire général
Record 32, Main entry term, French
- vague de Kelvin
1, record 32, French, vague%20de%20Kelvin
feminine noun
Record 32, Abbreviations, French
Record 32, Synonyms, French
Record 32, Textual support, French
Record 32, Spanish
Record 32, Campo(s) temático(s)
- Vocabulario general
Record 32, Main entry term, Spanish
- onda de Kelvin
1, record 32, Spanish, onda%20de%20Kelvin
feminine noun
Record 32, Abbreviations, Spanish
Record 32, Synonyms, Spanish
Record 32, Textual support, Spanish
Record 33 - internal organization data 1995-06-01
Record 33, English
Record 33, Subject field(s)
- Meteorology
Record 33, Main entry term, English
- constant flux layer
1, record 33, English, constant%20flux%20layer
correct
Record 33, Abbreviations, English
Record 33, Synonyms, English
Record 33, Textual support, English
Record number: 33, Textual support number: 1 DEF
Lowest part of the planetary boundary layer(surface layer), with a depth of about 50 m, in which the eddy stress may be considered equal to its surface value; the wind profile is approximately logarithmic in this layer. 1, record 33, English, - constant%20flux%20layer
Record 33, French
Record 33, Domaine(s)
- Météorologie
Record 33, Main entry term, French
- couche à flux constant
1, record 33, French, couche%20%C3%A0%20flux%20constant
correct, feminine noun
Record 33, Abbreviations, French
Record 33, Synonyms, French
Record 33, Textual support, French
Record number: 33, Textual support number: 1 DEF
Partie inférieure de la couche limite planétaire (couche de surface), d'une épaisseur de l'ordre de 50 m, dans laquelle la tension turbulente peut être considérée comme égale à sa valeur en surface; le profil du vent est approximativement logarithmique dans cette couche. 1, record 33, French, - couche%20%C3%A0%20flux%20constant
Record 33, Spanish
Record 33, Campo(s) temático(s)
- Meteorología
Record 33, Main entry term, Spanish
- capa de flujo constante
1, record 33, Spanish, capa%20de%20flujo%20constante
correct, feminine noun
Record 33, Abbreviations, Spanish
Record 33, Synonyms, Spanish
Record 33, Textual support, Spanish
Record number: 33, Textual support number: 1 DEF
Parte inferior de la capa límite planetaria (capa de superficie), de un espesor de unos 50 m, en la que la tensión turbulenta puede considerarse igual a un valor superficial; en esa capa, el perfil del viento es aproximadamente logarítmico. 1, record 33, Spanish, - capa%20de%20flujo%20constante
Record 34 - internal organization data 1992-12-31
Record 34, English
Record 34, Subject field(s)
- Meteorology
Record 34, Main entry term, English
- microscale
1, record 34, English, microscale
correct
Record 34, Abbreviations, English
Record 34, Synonyms, English
Record 34, Textual support, English
Record number: 34, Textual support number: 1 DEF
Dimensions of an atmospheric layer ranging from a few centimetres to a few kilometres in the horizontal, and from the ground to a height of about 100 metres, where the surface loses its immediate influence in the surface boundary layer. 1, record 34, English, - microscale
Record 34, Key term(s)
- micro-scale
- micro scale
Record 34, French
Record 34, Domaine(s)
- Météorologie
Record 34, Main entry term, French
- microéchelle
1, record 34, French, micro%C3%A9chelle
correct, feminine noun
Record 34, Abbreviations, French
Record 34, Synonyms, French
- micro-échelle 2, record 34, French, micro%2D%C3%A9chelle
correct, feminine noun, obsolete
Record 34, Textual support, French
Record number: 34, Textual support number: 1 DEF
Dimensions d'une couche atmosphérique s'étendant horizontalement de quelques centimètres à quelques kilomètres et, verticalement, du sol à une centaine de mètres, altitude à laquelle la surface perd son influence immédiate dans la couche limite de surface. 2, record 34, French, - micro%C3%A9chelle
Record 34, Spanish
Record 34, Campo(s) temático(s)
- Meteorología
Record 34, Main entry term, Spanish
- microescala
1, record 34, Spanish, microescala
feminine noun
Record 34, Abbreviations, Spanish
Record 34, Synonyms, Spanish
Record 34, Textual support, Spanish
Record number: 34, Textual support number: 1 DEF
Dimensiones de una capa atmosférica que se extiende horizontalmente de unos centímetros a varios kilómetros y verticalmente, del suelo a unos 100 metros, altitud en la cual la superficie pierde su influencia inmediata en la capa límite superficial. 1, record 34, Spanish, - microescala
Record 35 - internal organization data 1989-02-28
Record 35, English
Record 35, Subject field(s)
- Glaciology
- Environmental Studies and Analyses
Record 35, Main entry term, English
- surface resistance
1, record 35, English, surface%20resistance
correct
Record 35, Abbreviations, English
Record 35, Synonyms, English
Record 35, Textual support, English
Record number: 35, Textual support number: 1 CONT
The reciprocal of the deposition velocity [on a snow surface] is called the total resistance.... it follows after introducing the roughness length xyz for the wind profile [an equation]... where the total resistance has been expressed as a sum of four positive resistances.... the aerodynamic resistance(2)... the boundary layer resistance which accounts for the physically different mechanisms of mass and momentum transfer at a rough surface.... the surface resistance which is 0 for a perfect sink. 1, record 35, English, - surface%20resistance
Record number: 35, Textual support number: 2 CONT
... this result does not agree with average surface resistance of 1 to 10 cm used by the RADM model for similar condition, nor with a recent review of the deposition literature by xyz which recommends for modelling an average surface resistance for SO2 to snow of 7 s cm [superscript-1]. 2, record 35, English, - surface%20resistance
Record 35, French
Record 35, Domaine(s)
- Glaciologie
- Études et analyses environnementales
Record 35, Main entry term, French
- résistance de surface
1, record 35, French, r%C3%A9sistance%20de%20surface
proposal, feminine noun
Record 35, Abbreviations, French
Record 35, Synonyms, French
Record 35, Textual support, French
Record number: 35, Textual support number: 1 OBS
lié à la notion de "rugosité" (en anglais : "roughness"). Il s'agit de la résistance offerte par la surface du sol à l'écoulement des polluants (dépôts secs) dans leur chute. 1, record 35, French, - r%C3%A9sistance%20de%20surface
Record number: 35, Textual support number: 2 OBS
"rugosité" : État d'une surface représentant des aspérités ou des ondulations, de plus ou moins faible amplitude, opposant une résistance à l'écoulement. Les modèles de transport à grande distance des polluants utilisent des données sur les émissions, la rugosité et les types de sols ainsi que des données météorologiques. (Source : BT-175 : Voc. de la pollution atmosphérique de Denis Rivard]. 1, record 35, French, - r%C3%A9sistance%20de%20surface
Record 35, Spanish
Record 35, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2024
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
Language Portal of Canada
![](/images/sujets-features/portail-portal.jpg)
Access a collection of Canadian resources on all aspects of English and French, including quizzes.
Writing tools
![](/images/sujets-features/Outils-daide-redaction_Promo-web-En-vedette.png)
The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies
![](/images/sujets-features/lexiques-glossaries.jpg)
Access Translation Bureau glossaries and vocabularies.
- Date Modified: