A Three Dimensional Coupled Physical-biogeochemical Numerical Model in Three bays in Lombok
Dwiyoga Nugroho(a*), Zaenal Arifin(a), Edi kusmanto(a), Fan Wang(b), Yu Rencheng(b)

a) Research Center For Oceanography, National Research And Innovation Agency, Indonesia
b) Institute of Oceanology, Chinese Academy of Sciences,China

Abstract

Teluk Awang, Teluk Paremas, and Teluk Seriwe are known as highly productive mariculture centers in eastern Indonesia. They are subjected to significant nature forcing such as monsoonal variability, extreme waves, ocean heat waves and climate change. The three bays are located on the southeastern tip of Lombok island and part of water masses circulation in Alas Strait and the Indian Ocean. This study uses a numerical simulation using three dimensional ocean model ROMS and the NPZD biogeochemical model. Model perform as part of marine ranching concept development in Lombok island. Data sets to forced the model derived from global simulation and biogeochemical climatology. Model run for two years and agrees well with in-situ data. Model results are also used to calculate resident and flushing time.

Keywords: ROMS, biogeochemical, coupled model, circulation, water mass

Topic: Oceanography