Ocean wave characteristic in the Sunda Strait using Wave Spectrum Model

• Published in: IOP conference series. Earth and environmental science 2018-03, Vol.139 (1), p.12025
• Main Authors: Rachmayani, R, Ningsih, N S, Adiprabowo, S R, Nurfitri, S
• Format: Article
• Language: English
• Subjects: Mathematical models; Meteorological data; Numerical models; Ocean waves; Spectrum analysis; Straits; Two dimensional analysis; Wave energy; Wave height; Wave power; Wave spectra
• ISSN: 1755-1307; 1755-1315
• DOI: 10.1088/1755-1315/139/1/012025

The wave characteristics including significant wave height and direction, seas and swell in the Sunda Strait are analyzed seasonally to provide marine weather information. This is crucial for establishing secured marine activities between islands of Sumatera and Java. Ocean wave characteristics in the Sunda Strait are simulated for one year (July 1996-June 1977) by using SWAN numerical model. The ocean wave characteristics in the Sunda Strait are divided into three areas of interest; southern, centre and northern part of the Sunda Strait. Despite a weaker local wind, the maximum significant wave height is captured at the southern part with its height of 2.6 m in November compared to other seasonally months. This is associated with the dominated swell from the Indian Ocean contributes on wave energy toward the Sunda Strait. The 2D spectrum analysis exhibits the monthly wave characteristic at southern part that is dominated by seas along the year and swell propagating from the Indian Ocean to the Sunda Strait during December to February (northwest monsoon), May, and November. Seas and swell at northern part of the Sunda Strait are apprehended weaker compared to other parts of the Sunda Strait due to its location is farther from the Indian Ocean.