Accession Number : AD0694866

Title :   ON THE HIGH-LATITUDE LIMIT OF CLOSED GEOMAGNETIC FIELD LINES,

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF PURE PHYSICS

Personal Author(s) : Burrows,J. R. ; McDiarmid,I. B. ; Wilson,Margaret D.

Report Date : 11 MAR 1969

Pagination or Media Count : 3

Abstract : One of the investigations carried out with the energetic particle experiment on the Alouette satellites has been a study of the high-latitude boundary of 35-keV electrons in the outer radiation zone. A comparison of Lambda sub b the average high-latitude boundary, with solar proton intensity versus latitude profiles, and with the location of the auroral oval, leads to the conclusion that Lambda sub b indicates approximately the high-latitude limit of closed geomagnetic field lines, or alternatively the low-latitude limit of open field lines. The dependence of Lambda sub b on local magnetic time and on the angle between the earth-sun line and the geomagnetic axis has been investigated. (Author)

Descriptors :   (*GEOMAGNETISM, *VAN ALLEN RADIATION BELT), SOLAR WIND, DIURNAL VARIATIONS, ELECTRONS, MAGNETOSPHERE, SCIENTIFIC SATELLITES, CANADA

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE