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  Atmospheric correction for sea surface temperature retrieval from single thermal channel radiometer data onboard Kalpana satellite

Shahi, N., Agarwal, N., Mathur, A., & Sarkar, A. (2011). Atmospheric correction for sea surface temperature retrieval from single thermal channel radiometer data onboard Kalpana satellite. Journal of Earth System Science, 120 (3), 337-345.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0012-2446-F Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-0012-2448-B
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Shahi, N.R., Autor
Agarwal, N. 1, 2, Autor           
Mathur, A.K., Autor
Sarkar, A., Autor
Affiliations:
1Max Planck Fellows, MPI for Meteorology, Max Planck Society, ou_913548              
2The Ocean in the Earth System, MPI for Meteorology, Max Planck Society, Bundesstraße 53, 20146 Hamburg, DE, ou_913552              

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 Zusammenfassung: An atmospheric correction method has been applied on sea surface temperature (SST) retrieval algorithm using Very High Resolution Radiometer (VHRR) single window channel radiance data onboard Kalpana satellite (K-SAT). The technique makes use of concurrent water vapour fields available from Microwave Imager onboard Tropical Rainfall Measuring Mission (TRMM/TMI) satellite. Total water vapour content and satellite zenith angle dependent SST retrieval algorithm has been developed using Radiative Transfer Model [MODTRAN ver3.0] simulations for Kalpana 10.5-12.5 mu m thermal window channel. Retrieval of Kalpana SST (K-SST) has been carried out for every half-hourly acquisition of Kalpana data for the year 2008 to cover whole annual cycle of SST over Indian Ocean (IO). Validation of the retrieved corrected SST has been carried out using near-simultaneous observations of ship and buoys datasets covering Arabian Sea, Bay of Bengal and IO regions. A significant improvement in Root Mean Square Deviation (RMSD) of K-SST with respect to buoy (1.50-1.02 K) and to ship datasets (1.41-1.19 K) is seen with the use of near real-time water vapour fields of TMI. Furthermore, comparison of the retrieved SST has also been carried out using near simultaneous observations of TRMM/TMI SST over IO regions. The analysis shows that K-SST has overall cold bias of 1.17 K and an RMSD of 1.09 K after bias correction.

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Sprache(n): eng - English
 Datum: 2011-06
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
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 Art der Begutachtung: Expertenbegutachtung
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Titel: Journal of Earth System Science
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 120 (3) Artikelnummer: - Start- / Endseite: 337 - 345 Identifikator: -