ILMU KELAUTAN: Indonesian Journal of Marine Sciences
Vol 26, No 3 (2021): Ilmu Kelautan

Seasonal Variability of Waves Within the Indonesian Seas and Its Relation With the Monsoon Wind

Purwanto Purwanto (Department of Oceanography, Diponegoro University)
Denny Nugroho Sugianto (Department of Oceanography, Diponegoro University)
Muhammad Zainuri (Department of Oceanography, Diponegoro University)
Galuh Permatasari (Department of Oceanography, Diponegoro University)
Warsito Atmodjo (Department of Oceanography, Diponegoro University)
Baskoro Rochaddi (Department of Oceanography, Diponegoro University)
Aris Ismanto (Department of Oceanography, Diponegoro University)
Parichat Wetchayont (Department of Geography, Faculty of Social Science, Srinakharinwirot University)
Anindya Wirasatriya (Department of Oceanography, Diponegoro University)



Article Info

Publish Date
02 Sep 2021

Abstract

The previous studies have simulated the variability of the wave within the Indonesian seas which showed that the variability of wave follows the seasonal pattern. However, their analysis only consider the influence of local wind forcings. The bias and error of their simulated wave were also unclear. In the present study, we investigate the variability of wave within the Indonesian seas and its relation with the surface wind speed using the combination of reanalysis and remote sensing data with high accuracies. We split the analysis into swell and wind wave to obtain the influence of local and remote wind forcings. We show that at the inner seas (i.e., the South China Sea, Java Sea, Flores Sea, Banda Sea and Arafura Sea), the variability of significant wave height (SWH) is majorly influenced by the variability of the speed of monsoon wind. The maximum SWH during Northwest monsoon (NWM) season is located at the South China Sea while during Southeast monsoon (SEM) season is at Arafura Sea. This indicates that the wind wave (sea) is dominant at the inner seas. At the open seas (i.e., Pacific Ocean and Indian Ocean) the variability of SWH less corresponds to the the speed of monsoon wind. The remote wind forcings control the wave variability in the open ocean area. This indicates that swell is dominant at the open seas. In general, the magnitude of SWHswell is also more than SWHsea within the Indonesian seas.

Copyrights © 2021






Journal Info

Abbrev

ijms

Publisher

Subject

Earth & Planetary Sciences

Description

ILMU KELAUTAN: Indonesian Journal of Marine Sciences (IJMS) is dedicated to published highest quality of research papers and review on all aspects of marine biology, marine conservation, marine culture, marine geology and ...