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https://hdl.handle.net/20.500.14279/1831
Τίτλος: | A Time-Varying Radiometric Bias Correction for the TRMM Microwave Imager | Συγγραφείς: | Gopalan, Kaushik Jones, W. Linwood Biswas, Sayak K. Bilanow, Stephen Wilheit, Thomas T. Kasparis, Takis |
Major Field of Science: | Engineering and Technology | Field Category: | Electrical Engineering - Electronic Engineering - Information Engineering | Λέξεις-κλειδιά: | Intersatellite radiometric calibration;Microwave radiometer;Special sensor microwave imager (SSMI);Tropical Rainfall Measurement Mission Microwave Imager (TMI);WindSat | Ημερομηνία Έκδοσης: | Νοε-2009 | Πηγή: | IEEE Transactions on Geoscience and Remote Sensing, 2009, vol. 47, no. 11, pp. 3722 - 3730 | Volume: | 47 | Issue: | 11 | Start page: | 3722 | End page: | 3730 | Περιοδικό: | IEEE Transactions on Geoscience and Remote Sensing | Περίληψη: | Recent intersatellite radiometric comparisons of the Tropical Rainfall Measurement Mission Microwave Imager (TMI) with polar orbiting satellite radiometer data and modeled clear-sky radiances have uncovered a time-variable radiometric bias in the TMI brightness temperatures. The bias is consistent with a source that generally cools during orbit night and warms during sunlight exposure. The likely primary source has been identified as a slightly emissive parabolic antenna reflector. This paper presents an empirical brightness temperature correction to TMI based on the position around each orbit and the Sun elevation above the orbit plane. The results of radiometric intercomparisons with WindSat and special sensor microwave imager are presented, which demonstrate the effectiveness of the recommended correction approach based on four years of data. | URI: | https://hdl.handle.net/20.500.14279/1831 | ISSN: | 15580644 | DOI: | 10.1109/TGRS.2009.2028882 | Rights: | © IEEE | Type: | Article | Affiliation: | University of Central Florida |
Εμφανίζεται στις συλλογές: | Άρθρα/Articles |
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