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Proceedings Paper

Cryogenic Limb Array Etalon Spectrometer (CLAES): Experiment Overview
Author(s): Aidan E. Roche; John B. Kumer
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Paper Abstract

The Cryogenic Limb Array Etalon Spectrometer (CLAES) is one of a complement of instruments on the NASA Upper Atmosphere Research Satellite (UARS) which will study atomospheric photochemistry, energy input, and dynamics following a 1991 launch. CLAES will measure stratospheric altitude profiles of temperature, pressure, 03, H2O, CH4, N20, NO, NO2, N205, HNO3, C1ONO2, HC1, CFC-11, and CFC-12. These data will be obtained typically between 10 and 60 km, with 2.5-km vertical resolution and 500-km horizontal grid size. Coverage will be obtained between latitudes 80° north and south, thereby providing substantial coverage of the Antarctic spring polar ozone-hole region. The experiment will have a minimum useful on-orbit operating lifetime of 15 months, as dictated by the lifetime of the stored solid-neon/solid-CO2 cryogen. CLAES derives the listed geophysical parameters from measurement of earth-limb spectral emissions between 3.5 and 13 μm. Brief discussions of the measurement concept, instrument design, and performance are presented, followed by a more detailed discussion of scientific capabilities and measurement modes.

Paper Details

Date Published: 27 April 1988
PDF: 11 pages
Proc. SPIE 0973, Cryogenic Optical Systems and Instruments III, (27 April 1988); doi: 10.1117/12.948380
Show Author Affiliations
Aidan E. Roche, Lockheed Research & Development Division (United States)
John B. Kumer, Lockheed Research & Development Division (United States)

Published in SPIE Proceedings Vol. 0973:
Cryogenic Optical Systems and Instruments III
Ramsey K. Melugin; Warren G. Pierce, Editor(s)

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