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contributor authorSmith, G. Louis
contributor authorPandey, D. K.
contributor authorLee, Robert B.
contributor authorBarkstrom, Bruce R.
contributor authorPriestley, Kory J.
date accessioned2017-06-09T14:27:34Z
date available2017-06-09T14:27:34Z
date copyright2002/02/01
date issued2002
identifier issn0739-0572
identifier otherams-1961.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4155745
description abstractThe Clouds and Earth Radiant Energy System (CERES) scanning radiometer was designed to provide high accuracy measurements of the radiances from the earth. Calibration testing of the instruments showed the presence of an undesired slow transient in the measurements of all channels at 1% to 2% of the signal. Analysis of the data showed that the transient consists of a single linear mode. The characteristic time of this mode is 0.3 to 0.4 s and is much greater than that the 8?10-ms response time of the detector, so that it is well separated from the detector response. A numerical filter was designed for the removal of this transient from the measurements. Results show no trace remaining of the transient after application of the numerical filter. The characterization of the slow mode on the basis of ground calibration data is discussed and flight results are shown for the CERES instruments aboard the Tropical Rainfall Measurement Mission and Terra spacecraft. The primary influence of the slow mode is in the calibration of the instrument and the in-flight validation of the calibration. This method may be applicable to other radiometers that are striving for high accuracy and encounter a slow spurious mode, regardless of the underlying physics.
publisherAmerican Meteorological Society
titleNumerical Filtering of Spurious Transients in a Satellite Scanning Radiometer: Application to CERES
typeJournal Paper
journal volume19
journal issue2
journal titleJournal of Atmospheric and Oceanic Technology
identifier doi10.1175/1520-0426(2002)019<0172:NFOSTI>2.0.CO;2
journal fristpage172
journal lastpage182
treeJournal of Atmospheric and Oceanic Technology:;2002:;volume( 019 ):;issue: 002
contenttypeFulltext


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