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

Journal of earth system science

Kankan Sarkar^1,2¹  Aparna S G^1² 

[1]CSIR–National Institute of Oceanography, Dona Paula, Goa 403 004, India.^1

[2]Department of Mathematics, Malda College, Malda, West Bengal 732 101, India.^2

关键词: SST fronts;    frontal systems;    Arabian Sea;    Bay of Bengal;    potential fishing zones;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 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.

【 授权许可】

CC BY