VARIASI BULANAN GELOMBANG LAUT DI INDONESIA

Authors

  • Roni Kurniawan Badan Meteorologi Klimatologi dan Geofisika (BMKG)
  • Muhammad Najib Habibie Badan Meteorologi Klimatologi dan Geofisika (BMKG)
  • Suratno Suratno Badan Meteorologi Klimatologi dan Geofisika (BMKG)

DOI:

https://doi.org/10.31172/jmg.v12i3.104

Keywords:

ocean waves, Indonesia, monsoon, gelombang laut, monsun

Abstract

Indonesia merupakan negara kepulauan yang sebagian besar wilayahnya adalah perairan, maka segala aktivitas di laut menjadi bagian penting bagi kehidupan masyarakat Indonesia. Fenomena laut yang sangat mempengaruhi efisiensi dan keselamatan di laut adalah gelombang tinggi, oleh karena itu diperlukan informasi tentang variasi dan karakteristik tinggi gelombang di perairan Indonesia. Gelombang laut yang paling dominan diakibatkan oleh faktor angin, maka perhitungan tinggi gelombang laut dalam kajian ini menggunakan model gelombang Windwaves-05, dimana model ini menghitung tinggi gelombang berdasarkan energi dari angin permukaan. Hasil dari kajian ini menunjukkan bahwa, variasi gelombang di perairan Indonesia berkaitan erat dengan pola angin musiman yang terjadi di wilayah Indonesia. Pada saat monsun Asia dan Australia (DJF dan JJA), rata-rata tinggi gelombang lebih tinggi dibanding pada masa peralihan (MAM dan SON) dan puncak rata-rata gelombang tertinggi terjadi pada bulan Januari dan Juli. Rata-rata tinggi gelombang di wilayah perairan terbuka lebih tinggi dibandingkan dengan perairan antar pulau, kondisi ini terjadi karena adanya perbedaan panjang fetch yang terbentuk di wilayah perairan tersebut.


Indonesia archipelago mostly consists of waters. All activities in the oceans become an important part of Indonesian society. One of the phenomena affects the efficiency and safety on the oceans is ocean wave heights, therefore, information about characteristics and variations of wave height is crucial to be studied. Wind wave is the most dominant factor on the ocean, so this study utilized Windwaves-05 model to produce the wave height value based on the surface wind energy. The results of this study indicate that the ocean wave variations are closely related to seasonal wind patterns over Indonesia. During the Asian and Australia monsoon (DJF and JJA), mean of wave height is higher than during the transition period (MAM and SON). Mean of the highest ocean waves occurrs on February and July. Mean of wave height on the offshore waters is higher than on the inter-islands waters, this condition caused by different fetch length.

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Published

2011-12-15

How to Cite

Kurniawan, R., Habibie, M. N., & Suratno, S. (2011). VARIASI BULANAN GELOMBANG LAUT DI INDONESIA. Jurnal Meteorologi Dan Geofisika, 12(3). https://doi.org/10.31172/jmg.v12i3.104

Issue

Vol. 12 No. 3 (2011)

Section

Article

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