Observation of Upwelling and Chlorophyll-a Spatio-Temporal Distribution in Relation to Physicochemical Parameters in the Flores Sea and Pantar Strait, Indonesia Iis Triyulianti1, AnindyaWirasatya2, Gede Iwan Setiabudi3, Faisal Hamzah4, Alexander Yosep Elake5, Akhmad Tri Prasetyo2, Muhammad Zainuri2, Dessy Berlianti4, Dwiyoga Nugroho4, Bayu Priyono4, Teguh Agustiadi4, Rafidha Dh Opier1, Muhammad Rachel Farchan2, Deirus Rizki Khair6
1 Research Center of Deep Sea, BRIN
2 Faculty of Marine and Fisheries, UNDIP
3 Faculty of Marine and Fisheries, UNDIKHSA
4 Research Center Of Oceanography, BRIN
5 Faculty of Marine and Fisheries, UNPATTI
6 PUSHIDROS TNI AL
Abstract
The Flores sea and Pantar sea waters are Indonesian deep waters that are passed by the Indonesian Throughflow (ITF), which originates in the Pacific Oceans and flows to the Indian Ocean through Lombok stait. These water masses have distinct properties are thought to impact on the mechanisms and processes of marine physics and biogeochemistry in Flores Sea and Pantar Strait waters. This study provides a preliminary results of the Jala Citra 3 Expeditions 2023 in the Flores Sea and Pantar strait for the observation of upwelling and the measurement of chlorophyll-a and physic-chemical parameters as part of their program in Indonesian waters ecology and oceanography. The purpose of this study is to investigate satellite and in situ datas observation for chlorophyll-a and physics-chemical parameters in the Flores sea and pantar strait waters. The expeditions was conducted using KRI SPICA 934 in April 2023. The processing of temperature satellite imagery data revealed that upwelling events in April 2023 appear to be weak. Upwelling affects the region'-s hydrology by lowering temperature and dissolved oxygen while increasing salinity, density, and nitrate-nitrogen concentrations. Temperature, salinity, total suspended matter (TSM), chlorophyll-a, and dissolved oxygen (DO) value distributions all showed spatial heterogeneity. All physico-chemical datasets that underwent cluster analysis produced two unique clusters, demonstrating the existence of two distinct regions that are highly impacted by physico-chemical parameters.
Keywords: PleaseUpwelling, Chlorophyll-a, Physic-Chemical Parameters, Flores Sea, Pantar Strait Just Try to Submit This Sample Abstract
