TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

DRIFT SHELL [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2004-10-22

English

Subject field(s)
  • Physics
  • Space Physics
CONT

Butterfly distributions were observed at the onset of the main phase(orbit 185). They are usually explained in terms of drift shell splitting due to local time asymmetry in the Earth's magnetic field.

French

Domaine(s)
  • Physique
  • Physique spatiale
CONT

Distribution en papillon des particules.

Spanish

Save record 1

Record 2 2002-11-13

English

Subject field(s)
  • Astrophysics and Cosmography
  • Electromagnetic Radiation
CONT

When these particles drift around the Earth, they do not remain on common field lines unless the geomagnetic field distribution is axially symmetric. This effect has been called "drift shell splitting"... A drift shell is uniquely determined by the coordinate pair(Bm, Lm) as a surface formed by segments of magnetic field lines between conjugate mirror points. Therefore, drift shells which are tangent to one another or cut one another at a given longitude or local time where they have a common segment of field line, generally are separate from one another at a different longitude or local time---in Roederer's terms these drift shells "split". But since these drift shells are different entities from the outset, there is no real need to infer a notion of splitting.

French

Domaine(s)
  • Astrophysique et cosmographie
  • Rayonnements électromagnétiques

Spanish

Save record 2

Record 3 2000-04-01

English

Subject field(s)
  • Magnetism
  • Geophysics
CONT

In addition to their bounce motion, the trapped particles also drift azimuthally(in longitude) : ions to the west, electrons to the east. It is this drift motion that creates the ring current. The two-dimensional surface that these particles define through their combined bounce and drift motions is known as a "drift shell" or "L shell".

French

Domaine(s)
  • Magnétisme
  • Géophysique

Spanish

Save record 3

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

Display options

Change the order of display of the official languages of Canada
Option to display the non-official languages (Spanish or Portuguese)
Display definitions, contexts, etc., on records

Features

Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.

Writing tools

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

Access Translation Bureau glossaries and vocabularies.

Date Modified: