On the Role of Sea Surface Temperature Variability over the Tropical Indian Ocean in Relation to Summer Monsoon Using Satellite Data

✍ Scribed by M.R.Ramesh Kumar; P.M. Muraleedharan; P.V. Sathe

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 209 KB
• Volume: 70
• Category: Article
• ISSN: 0034-4257
• DOI: 10.1016/s0034-4257(99)00028-0

✦ Synopsis

The sea surface temperature (SST) variability over the lanes. It is now possible to get SST data on a routine tropical Indian Ocean is studied for the period January basis from satellites. Though uncertainties still exist as to 1988 to December 1992 using the multichannel sea surthe accuracy of these data, especially over the tropical face temperature (MCSST) from the NOAA series of satregions, it has the advantages of large area coverage and ellites. The MCSST values were found to agree reasonreal time accessibility, which are important attributes ably well with the Reynolds and Smith (1994)

data for

from the predictive point of view. Thus SST from the the same period, but the anomalies were found to differ Advanced Very High Resolution Radiometer (AVHRR) significantly. An interesting result is the influence of the sensor onboard the National Oceanic and Atmospheric Somalia coast zonal anomaly of SST (SCZASST) and Administration (NOAA) series of satellites is the only central Indian Ocean zonal anomaly of SST (CIOZASST) source of data in the data-sparse regions like tropical Inwith the monsoon rainfall over different meteorological dian Ocean. The accuracy of satellite-derived SST has subdivisions of the Indian subcontinent. The SCZASST is improved with the availability of more sea truth data and negatively and significantly correlated with the monsoon better MCSST algorithms (McClain et al., 1985). rainfall over the western and central parts of India, while

In this article, we analyze the role of the weekly sat-CIOZASST is positively and significantly correlated.

ellite-derived SST (MCSST) for the period 1988-1992 ©Elsevier Science Inc., 199999 during the premonsoon and monsoon period on the summer monsoon rainfall over the various meteorological subdivisions over the Indian subcontinent. The results