NDLI: Coastal Upwelling of the South Eastern Arabian Sea - An Integrated Approach

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Coastal Upwelling of the South Eastern Arabian Sea - An Integrated Approach

Content Provider	CUSAT-Thesis
Advisor	Dr. Sajeev, R
Researcher	Smitha, B. R.
Abstract	Upwelling regions occupies only a small portion of the global oceansurface. However it accounts for a large fraction of the oceanic primaryproduction as well as fishery. Therefore understanding and quantifyingthe upwelling is of great importance for the marine resourcesmanagement. Most of the coastal upwelling zones in the Arabian Sea arewind driven uniform systems. Mesoscale studies along the southwestcoast of India have shown high spatial and temporal variability in theforcing mechanism and intensity of upwelling. There exists anequatorward component of wind stress as similar to the most upwellingzones along the eastern oceanic boundaries. Therefore an offshorecomponent of surface Ekman transport is expected throughout the year.But several studies supported with in situ evidences have revealed thatthe process is purely recurring on seasonal basis. The explanationmerely based on local wind forcing alone is not sufficient to support theobservations. So, it is assumed that upwelling along the South EasternArabian Sea is an effect of basin wide wind forcing rather than localwind forcing. In the present study an integrated approach has been made to understand the process of upwelling of the South Eastern Arabian Sea.The latitudinal and seasonal variations (based on Sea SurfaceTemperature, wind forcing, Chlorophyll a and primary production),forcing mechanisms (local wind and remote forcing) and the factorsinfluencing the system (Arabian Sea High Saline Water, Bay of Bengalwater, runoff, coastal geomorphology) are addressed herewith.
File Format	PDF
Language	English
Publisher Institution	Cochin University of Science and Technology
Access Restriction	Open
Subject Keyword	Coastal Upwelling South Eastern Arabian Sea
Content Type	Text
Educational Degree	Doctor of Philosophy (Ph.D.)
Resource Type	Thesis

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