Influence of coastal upwelling on sea surface temperature trends in Banda Sea

Nama Peneliti : Herlambang Aulia Rachman

Awardee LPDP Program Magister

Pembimbing : Dr. Jonson Lumban Gaol; Prof. Fadli Syamsudin (BPPT)

Program Studi Teknologi Kelautan, Fakultas Perikanan dan Ilmu Kelautan, IPB

The Banda Sea region is one of the locations in Indonesian waters that have high Coastal Upwelling intensity which related to the monsoon pattern. The calculation of Upwelling Index (UI) based on Wind data show that the peak coastal upwelling is from June to September. Analysis of SST trends was carried out in the July-September period based on NOAA OISST data from 1982-2017. The results show that there are differences in the value of SST trends that occur in the Coastal and Oceanic regions. In general, the SST trend in the Banda Sea waters has a positive value (warming) in both the coastal and ocean areas. While the UI trend in coastal and oceanic regions in the Banda Sea tends to decline from the 1982-2017 period. This condition shows that external factors quite influence oceanographic conditions in Banda Sea waters. It is also thought to have caused a decrease in the intensity of the upwelling trend found in the Banda Sea. The results show that the SST trend in the Banda Sea tends to increase during the peak upwelling season (June-September). Meanwhile, the Upwelling intensity trend shows a decreasing pattern which is also confirmed by decreasing trend in chlorophyll concentration

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