Analisis Spektrum Gelombang Di Perairan Pulau Panjang

*Mizan Zikrullah Abdulkadir  -  Oceanography Department, Faculty of Fisheries and Marine Science, University of Diponegoro, Indonesia
Indra Budi Prasetyawan scopus  -  Oceanography Department, Faculty of Fisheries and Marine Science, University of Diponegoro, Indonesia
Denny Nugroho Sugianto scopus  -  Oceanography Department, Faculty of Fisheries and Marine Science, University of Diponegoro, Indonesia
Agus Anugroho Dwi Suryoputro scopus  -  Oceanography Department, Faculty of Fisheries and Marine Science, University of Diponegoro, Indonesia
Heriyoso Setyono scopus  -  Oceanography Department, Faculty of Fisheries and Marine Science, University of Diponegoro, Indonesia
Petrus Subardjo scopus  -  Oceanography Department, Faculty of Fisheries and Marine Science, University of Diponegoro, Indonesia
Received: 6 Nov 2019; Revised: 6 Nov 2019; Accepted: 7 Nov 2019; Published: 7 Nov 2019; Available online: 7 Nov 2019.
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Abstract

Pulau Panjang merupakan salah satu pulau yang dikategorikan sebagai pulau kecil dan terdapat di Kelurahan Ujungbatu, Kecamatan Jepara, Kabupaten Jepara, Provinsi Jawa Tengah. Masalah yang dihadapi Pulau Panjang adalah erosi yang semakin menggerus bibir pantai dan mulai merusak bangunan yang berada di pinggir pantai. Tujuan dilakukannya penelitian ini adalah untuk mengetahui spektrum gelombang dan karakteristik gelombang di Perairan Pulau Panjang, Jepara, Jawa Tengah. Metode yang digunakan dalam penelitian ini bersifat kuantitatif. Software yang digunakan dalam penelitian ini adalah Surface Water Modelling System (SMS) dengan modul STWAVE. Hasil pengolahan data lapangan menunjukkan bahwa tinggi gelombang maksimum adalah sebesar 0,435 meter dengan periode 6,5 detik. Tinggi gelombang signifikan (Hs)  0,219 meter dengan periode gelombang signifikan (Ts) 3,1 detik. Hasil pemodelan spektrum gelombang menunjukkan bahwa nilai energi gelombang berbanding lurus dengan nilai tinggi gelombangnya.

Kata Kunci: Gelombang, Karakteristik Gelombang, Spektrum Gelombang, Perairan Pulau Panjang Jepara

  

Pulau Panjang is one of the islands which is categorized as a small island and is located in Ujungbatu Village, Jepara District, Jepara Regency, Central Java Province. The problem faced by Panjang Island is erosion which increasingly erodes the shoreline and begins to damage buildings on the beach. The purpose of this study is to knowing the wave spectrum and characteristic of waves at Panjang Island, Jepara. The research was conducted on 7 March – 11 March 2019 at Panjang Island Waters. The methods used in this study were quantitative methods. The software used in this study is the Surface Water Modelling System (SMS) with STWAVE module. The result of the field data shows that the maximum wave height was 0,435 meters with a period of 6,5 seconds. Significant wave height (Hs) was 0,219 meters with a significant wave period (Ts) of 3,1 seconds. Based on the result of wave spectrum models it can be concluded that the wave energy value have linear condition with the wave height value. 

Keywords: Waves, Waves Characteristic, Wave Spectrum, Pulau Panjang Waters

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