Vertical Cutoff Rigidity and the Intensity Distribution of Cosmic Rays near Cape Town.

A fairly sharp increase of 2.3% in the intensity of the nucleonic component of cosmic rays was observed at 30,000 feet pressure altitude along a contour of CONSTANT CALCULATED VERTICAL CUTOFF RIGIDITY ON A RESEARCH FLIGHT FROM Cape Town, South Africa, at 18 E longitude, to a point 2 W longitude. The...

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Bibliographic Details
Main Authors: Koenig ,P J, Walt,A J V D, Stoker,P H, Raubenheimer,B C, Shea,M A
Other Authors: AIR FORCE GEOPHYSICS LAB HANSCOM AFB MASS
Format: Text
Language:English
Published: 1977
Subjects:
Atmospheric Physics
*COSMIC RAYS
GEOMAGNETISM
DISTRIBUTION
ENERGY
VERTICAL ORIENTATION
SOUTH AFRICA
MAGNETOSPHERE
MAGNETIC ANOMALIES
MAGNETIC FORCES
VAN ALLEN RADIATION BELT
SOUTH ATLANTIC OCEAN
WUAFGL2311G101
PE61102F
South Atlantic Ocean
Online Access:http://www.dtic.mil/docs/citations/ADA043967
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA043967
Description
Summary:A fairly sharp increase of 2.3% in the intensity of the nucleonic component of cosmic rays was observed at 30,000 feet pressure altitude along a contour of CONSTANT CALCULATED VERTICAL CUTOFF RIGIDITY ON A RESEARCH FLIGHT FROM Cape Town, South Africa, at 18 E longitude, to a point 2 W longitude. The increase seems to be an inherent feature of this region near the South Atlantic geomagnetic anomaly. Detailed cutoff rigidity calculations in vertical and inclined directions revealed that the observed increase may at least partly be ascribed to variation in effective cutoff rigidities along the route. However, the increase could also be attributed, at least as far as morphology is concerned, to the continuous precipitation in a restricted area of those high energy inner radiation belt protons that have short live-times. (Author) Presented at the International Cosmic Ray Conference (15th).

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