Accession Number : AD0719818

Title :   Upper Atmosphere Neutral Temperature Profiles in the Auroral Zone 1968-1970,

Corporate Author : UNIVERSITY COLL LONDON (ENGLAND) DEPT OF PHYSICS

Personal Author(s) : Rees,David

Report Date : SEP 1970

Pagination or Media Count : 21

Abstract : Neutral temperatures have been measured above 120 km altitude from observations of the fluorescent emission of aluminium oxide and barium oxide clouds released from rockets launched at ESRANGE, Kiruna. The temperature observations showed a strong correlation with the C9 daily magnetic character rather than with the 3-hour Kp index. A small diurnal variation appeared from the data, the temperature at 165 km being on average 100K higher during evening twilight than morning twilight. No clear seasonal or longer term variations were apparent from the data. The results indicate a strong auroral zone enhancement of the heating associated with geomagnetic activity. (Author)

Descriptors :   (*UPPER ATMOSPHERE, ATMOSPHERIC TEMPERATURE), AURORAE, FLUORESCENCE, ALUMINA, OXIDES, SOUNDING ROCKETS, ATMOSPHERIC SOUNDING, CLOUDS, HEATING, TRACER STUDIES, TWILIGHT, MAGNETIC STORMS, CORRELATION TECHNIQUES, GREAT BRITAIN

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE