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Please use this identifier to cite or link to this item: http://idr.iitbbs.ac.in/jspui/handle/2008/2228
Title: Seasonal Evolution of Oceanic Upper Layer Processes in the Northern Bay of Bengal Following a Single Argo Float
Authors: Shee A.
Sil S.
Gangopadhyay A.
Gawarkiewicz G.
Ravichandran M.
Keywords: Argo
barrier layer
Bay of Bengal
mixed layer
Monin-Obukhov length
temperature inversion
Issue Date: 2019
Citation: 1
Abstract: Seasonal evolution of the barrier layer (BL) and temperature inversion in the northern Bay of Bengal and their role on the mixed layer temperature (MLT) is examined using observations from a single Argo during December 2013 to July 2017. During fall, low salinity at surface generates BL in this region. It thickens to almost 80 m in winter enhanced by deepening of isothermal layer depth due to remote forcing. During winter, surface cooling lowers near-surface temperature, and thus, the subsurface BL experiences a significant temperature inversion (~2.5��C). This temperature inversion diffuses to distribute heat within ML and surface heating begins deep penetration of shortwave radiation through ML during spring. Hence, the ML becomes thermally well stratified, resulting in the warmest MLT. The Monin-Obukhov length attains its highest value during summer indicating wind dominance in the ML. During spring and fall, upper ocean gains heat allowing buoyancy to dominate over wind mixing. �2019. American Geophysical Union. All Rights Reserved.
URI: http://dx.doi.org/10.1029/2019GL082078
http://10.10.32.48:8080/jspui/handle/2008/2228
Appears in Collections:Research Publications

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