Accession Number:

ADA043420

Title:

Further Evaluation of Icecap Auroral 4.3 micrometers Zenith Radiance. HAES Report Number 57.

Descriptive Note:

Final rept. 1 Aug 75-31 Oct 76,

Corporate Author:

LOCKHEED MISSILES AND SPACE CO INC PALO ALTO CALIF PALO ALTO RESEARCH LAB

Personal Author(s):

Report Date:

1976-10-01

Pagination or Media Count:

77.0

Abstract:

The author has successfully developed the numerical facility to solve the exact time dependent plane parallel radiation transport equations which describe 4.3 micrometer emission in the upper atmosphere. He found that accurate modeling for high altitude CO2 4.3 micrometer emissions requires that the effects of the weak C02 4.3 micrometer bands be included in the calculation. He used this improved facility for assessment of 4.3 micrometer zenith radiance data obtained 24 March 1973 and found that somewhat better agreement with these data were obtained in the altitude region z 90 km than he had previously reported. It was the inclusion of the weak CO2 nu sub 3 bands which resulted in obtaining a better fit to these data in the region z 90 km. A 4.3 micrometer zenith radiance component which has its maximum at z approximately 80 km appears in the 4.3 micrometer zenith radiance data obtained on 11 April 1974 and 27 March 1973 under quiet aurora conditions and also perhaps in the 25 February 1974 upleg data obtained in the edge of a discrete arc.

Subject Categories:

  • Atmospheric Physics
  • Optical Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE