SABER/TIMED Mesospheric Water Vapor and Temperature
Abstract
Low temperatures and abundant water vapor are the necessary components for the mesospheric water ice forming. The SABER instrument on board the TIMED Satellite is a limb scanning infrared radiometer designed to measure temperature and minor constituent vertical profiles and energetics parameters in the mesosphere and lower thermosphere. This paper describes the methodology of the water vapor retrieval from the broadband 6.3μm non-LTE emissions and discusses some aspects of the temperature retrieval from the 15μm non-LTE CO2 emissions measured by SABER. The non-LTE models of H2O and CO2 are validated using the comparisons with the ACE-FTS occultation measurement and lidar temperature measurements, respectively. The seasonal and latitudinal distributions of water vapor and temperatures retrieved from the SABER measurements are shown and the conditions for ice clouds forming are discussed.
- Publication:
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AGU Spring Meeting Abstracts
- Pub Date:
- May 2008
- Bibcode:
- 2008AGUSMSA41D..09F
- Keywords:
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- 0317 Chemical kinetic and photochemical properties;
- 0340 Middle atmosphere: composition and chemistry;
- 0360 Radiation: transmission and scattering;
- 3333 Model calibration (1846);
- 3360 Remote sensing