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Assessment of the coral bleaching during 2005 to decipher the thermal stress in the coral environs of the Andaman Islands using remote sensing

Mohanty, PC and Mahendra, RS and Bisoyi, H and Kumar, TS and Grinson, G and Nayak, S and Sahu, BK (2013) Assessment of the coral bleaching during 2005 to decipher the thermal stress in the coral environs of the Andaman Islands using remote sensing. European Journal of Remote Sensing, 46 (1). pp. 417-430.

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Abstract

Sea Surface Temperature (SST) derived from the NOAA AVHRR satellite data were used to generate the Degree of Heating Weeks (DHW) and Hot Spot (HS) products. Combination of the cumulative temperature anomalies and the thermal stress studies were yielded to synoptically identify the probable areas of bleaching. The bleaching status of the Andaman region was assessed based on the DHW and HS for the bleaching event occurred in the Andaman region in April/May 2005. The bleaching status up to Alert Level-1 was recorded with the maximum HS of 3°C and DHW 6°C-week. Simultaneous in-situ reef observations conducted in the Andaman Sea confirmed the coral bleaching event. The maximum mortality in the region due to coral bleaching was shown by the Acropora species (43) followed by Montipora species (22) and Porites species (14). This study focused on detection of coral bleaching warning based on the SST in compliment with the in-situ observations.

Item Type: Article
Additional Information: Copyright of this article belongs to Italian Society for Remote Sensing
Uncontrolled Keywords: Andaman Island, Hot Spot, degree of heating weeks, thermal stress, sea surface temperature
Subjects: Earth Resources and Remote Sensing
Oceanography > oceanography
Depositing User: INCOIS Library
Date Deposited: 14 Dec 2013 06:18
Last Modified: 14 Dec 2013 06:18
URI: http://moeseprints.incois.gov.in/id/eprint/109

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