Accession Number:

ADA055884

Title:

Assessment and Evaluation of Simulation Data.

Descriptive Note:

Final rept. 1 Mar-15 Oct 77,

Corporate Author:

PHOTOMETRICS INC LEXINGTON MASS

Report Date:

1977-11-15

Pagination or Media Count:

135.0

Abstract:

Radiance data from the charged particle-stimulated ionosphere in the wave-length band 4.2-4.3 micrometers from ICECAPHAES multi-instrumented rocket A18.219-1, 1974 are evaluated the performance of two diagnostic photometer systems flown on sounding rockets is assessed a procedure for determining pointing relative to prompt and past air excitation of a rocketborne interferometric spectrometer on IC630.02-1A HIRIS II, 1976 is developed and photometry and positioning data for 1976 aircraft flights at auroral latitudes to measure spatial structure in infrared radiance are presented. The radiation flux near 4.3 micrometers at low elevation angles approximately 5-15 deg has both layering irregularities and a component associated with prompt energy deposition in the atmosphere. The altitude structure is interpreted as an effect of adding collisional transfer of N2 vibrational energy excited by aurora-producing particles to the population of CO2 by transport of thermal radiation. Aeronomic mechanisms that could be responsible for the near-prompt infrared mechanism are reviewed critically, and further measurements to select among these processes and to identify the radiating molecular species are suggested. A photometer with wavelength response designed to simulate that of calibrated photographic cameras, such as were used to image the glows from past nuclear explosions, performed essentially as expected.

Subject Categories:

  • Atmospheric Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE