Seasonal variability of sea-surface temperature fronts associated with large marine ecosystems in the north Indian Ocean

被引：0
|
作者：
Kankan Sarkar
S G Aparna
Shrikant Dora
D Shankar
机构：
[1] CSIR–National Institute of Oceanography,Department of Mathematics
[2] Malda College,undefined
来源：
Journal of Earth System Science | 2019年 / 128卷
关键词：
SST fronts; frontal systems; Arabian Sea; Bay of Bengal; potential fishing zones;
D O I：
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学科分类号：
摘要：
We use 14 years of satellite-derived sea-surface temperature (SST) data to compute a monthly frontal probability index (FPI) to determine the existence of a front in a pixel. A persistent SST front is deemed to exist if the FPI in a narrow region exceeds that in the surrounding ocean. We describe the seasonal variability of 17 persistent SST fronts (eight associated with the shelf-slope boundary and five with the mixing between different water masses) in the north Indian Ocean. Only weak fronts exist during a few months in the strong upwelling regimes off Somalia and Oman.
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