Analyses of on-orbit determinations of the Clouds and the Earth's Radiant Energy System (CERES) thermistor bolometer sensor zero-radiance offsets

Robert Benjamin Lee III; Susan Thomas; Kory J. Priestley; Bruce R. Barkstrom; Jack Paden; Dhirendra K. Pandey; G. Louis Smith; Aiman Al-Hajjah; Robert S. Wilson

doi:10.1117/12.363545

24 September 1999 Analyses of on-orbit determinations of the Clouds and the Earth's Radiant Energy System (CERES) thermistor bolometer sensor zero-radiance offsets

Robert Benjamin Lee III, Susan Thomas, Kory J. Priestley, Bruce R. Barkstrom, Jack Paden, Dhirendra K. Pandey, G. Louis Smith, Aiman Al-Hajjah, Robert S. Wilson

Author Affiliations +

Proceedings Volume 3750, Earth Observing Systems IV; (1999) https://doi.org/10.1117/12.363545
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

The Clouds and Earth's Radiant Energy System (CERES) missions were designed to measure broadband earth-reflected shortwave solar and earth-emitted longwave radiances as well as earth-emitted narrow-band radiances in the water vapor window region between 8 and 12 micrometers . However, the CERES scanning thermistor bolometer sensor zero-radiance offsets were found to vary as much as 1.0 Wm^-2sr^-1 with the scan angle measurement geometry due to gravitational forces and systematic electronic noise. To minimize the gravitational effects, the Tropical Rainfall Measuring Mission (TRMM) Spacecraft CERES sensors; offsets were derived on-orbit as functions of scan elevation and azimuth angles from the January 7-8, 1998 radiometric observations of deep cold space, representative of a 3K blackbody.

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Robert Benjamin Lee III, Susan Thomas, Kory J. Priestley, Bruce R. Barkstrom, Jack Paden, Dhirendra K. Pandey, G. Louis Smith, Aiman Al-Hajjah, and Robert S. Wilson "Analyses of on-orbit determinations of the Clouds and the Earth's Radiant Energy System (CERES) thermistor bolometer sensor zero-radiance offsets", Proc. SPIE 3750, Earth Observing Systems IV, (24 September 1999); https://doi.org/10.1117/12.363545

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