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

被引：13
|
作者：
Sarkar, Kankan [1 ,2 ]
Aparna, S. G. [1 ]
Dora, Shrikant [1 ]
Shankar, D. [1 ]
机构：
[1] Natl Inst Oceanog, CSIR, Panaji 403004, Goa, India
[2] Malda Coll, Dept Math, Malda 732101, W Bengal, India
来源：
JOURNAL OF EARTH SYSTEM SCIENCE | 2019年 / 128卷 / 01期
关键词：
SST fronts; frontal systems; Arabian Sea; Bay of Bengal; potential fishing zones;
D O I：
10.1007/s12040-018-1045-x
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
We use 14years 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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页数：8
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