Climatological oceanic-driven upwelling in the Western North Sumatera Waters using INDESO (2008-2014)

Abstract

It is widely known that during upwelling feature, two different water-masses exchange simultaneously, on the one side surface warm-water mass sink downward and on the other side, deep cold-water-mass rise toward the surface which also bring demanded nutrients upward that may further locate areas of rich in marine productivity. Western North Sumatera Waters (WNSW) is considered as potential upwelling zones in Western and Northern Provinces of Sumatera. However, studies on upwelling as well as its physical mechanisms associated with ocean-atmosphere interaction that might govern the upwelling system in the region is yet to perform. A three-dimensional numerical model outputs are utilized in the present research to address the emergence of upwelling feature throughout the WNSW. The purpose of the research are to identify the thermal front associated with cyclonic and anti-cyclonic eddies.