Accession Number : ADA301383

Title :   An Investigation of the Causes of Optical and Infrared Airglow Structures in the Mesosphere.

Descriptive Note : Interim rept.,

Corporate Author : PHILLIPS LAB HANSCOM AFB MA

Personal Author(s) : Dewan, Edmond M.

PDF Url : ADA301383

Report Date : 17 OCT 1994

Pagination or Media Count : 97

Abstract : The MAPSTAR program was both a theoretical and experimental investigation of airglow structure and its causes. We found that the most important cause of the structures is atmospheric gravity waves, and that thunderstorms are a clearly identified source of the waves responsible for such structure. We also studied many related issues. In addition, two new instruments were designed and fabricated during this program. These were the MAPSTAR infrared Michelson interferometer and the MAPSTAR radar imaging Doppler interferometer. The latter instrument has played the crucial role in removing discrepancies between different methods of radar wind profiling. Structures investigated under MAPSTAR give rise to system clutter; thus having direct impact upon Air Force surveillance operations from space. (AN)

Descriptors :   *MESOSPHERE, *INFRARED RADIATION, *AIRGLOW, *GRAVITY WAVES, SPACE SURVEILLANCE, CLUTTER, DOPPLER RADAR, WIND, ATMOSPHERIC TEMPERATURE, POWER SPECTRA, RADAR IMAGES, OPTICAL INTERFEROMETERS, RADIANCE, AURORAE, SPECTRUM ANALYSIS, ATMOSPHERE MODELS, AIR FORCE OPERATIONS, HYDROXYL RADICALS, INFRARED SPECTROMETERS, MICHELSON INTERFEROMETERS, STRATOSPHERE, THUNDERSTORMS, SKY BRIGHTNESS.

Subject Categories : Atmospheric Physics
      Infrared Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE