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Comparison between Argo-derived sea surface temperature and microwave sea surface temperature in tropical Indian Ocean

Udaya Bhaskar, TVS and Jayaram, C and Rama Rao, EP (2013) Comparison between Argo-derived sea surface temperature and microwave sea surface temperature in tropical Indian Ocean. Remote Sensing Letters, 4 (2). pp. 141-150.

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Abstract

A comparison between in situ and microwave satellite-derived sea surface temperature (SST) for the tropical Indian Ocean (TIO) during January 2009–December 2010 is presented. All available in situ temperatures close to the surface (5 m) from Argo profiling floats are used in this study. Weekly 0.25° × 0.25° spatial resolution SST was produced from these Argo in situ data using the Data-Interpolating Variational Analysis (DIVA) method. This weekly Argo sea surface temperature (ASST) is compared with Tropical Rainfall Measuring Mission Microwave Imager (TMI)-retrieved Sea Surface Temperature (TMISST) and available blended Optimum-Interpolation Sea Surface Temperature (OISST) product, at selected regions encompassing the north, central and southern TIO. The results indicate a bias and root mean square error (RMSE) of –0.02°C and 0.45°C between ASST and OISST, whereas the bias and RMSE between ASST and TMISST is observed to be 0.11°C and 0.32°C, respectively. The correlation coefficient (r) between ASST and OISST is observed to be 0.980, whereas r between ASST and TMISST is observed to be 0.985.

Item Type: Article
Additional Information: Copyright of this article belongs to Taylor & Francis.
Subjects: Meteorology and Climatology
Oceanography > oceanography
Depositing User: INCOIS Library
Date Deposited: 14 Dec 2013 05:35
Last Modified: 14 Dec 2013 05:35
URI: http://moeseprints.incois.gov.in/id/eprint/123

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