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All Journal JFA (Jurnal Fisika dan Aplikasinya)
Achmad Fahruddin Rais Achmad Fahruddin Rais
Badan Meteorologi Klimatologi dan Geofisika, Jl. Angkasa I No.2 Kemayoran, Jakarta 10720
Physics

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Pengaruh ElNino pada Gelombang Signifikan di Perairan Indonesia: Achmad Fahruddin Rais Achmad Fahruddin Rais Achmad Fahruddin Rais
Jurnal Fisika dan Aplikasinya Vol 15 No 2 (2019): June 2019 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v15i2.4317

Abstract

In the previous studies, the influence of ElNino on significant waves was not able to be analyzed properly because the simulation model used did not cover the super ElNino period. Therefore, a new research needs to be done based on data in the period of super ElNino. Before analyzing, I assess the accuracy of wavewatch III (WW3) model significant wave by calculating correlation and root mean square error (RMSE) on significant wave of the altimeter satellite. The influence of ElNino on significant waves is obtained from the correlation between the oceanic nino index (ONI) 3.4 and the significant waves of WW3. I also calculate the ratio between significant wave composites of ElNino / LaNina and ElNino super events towards normal significant waves. The results show that theWW3 significant wave has good accuracy in Indonesian waters. ElNino and LaNina have a strong influence on significant waves in the Java Sea and Sunda Strait at period of December-January-February (DJF). ElNino (LaNina) is able to reduce (increase) the significant wave height until 30%to the normal condition in Java Sea and Sunda strait. In extreme cases, super ElNino is able to reduce a significant wave height until 50% to the normal condition.
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