KERENTANAN PULAU SOPHIALOUSIA DI KABUPATEN LOMBOK BARAT TERHADAP PERUBAHAN IKLIM DAN KONSEP PENANGANANNYA

  • Kadek Windy Candrayana Program Studi Teknik Sipil, Universitas Warmadewa, Denpasar, Bali, Indonesia
  • I Gusti Agung Putu Eryani Program Studi Teknik Sipil, Universitas Warmadewa, Denpasar, Bali, Indonesia
DOI: https://doi.org/10.22225/pd.12.1.6525.106-113
Kata Kunci: perubahan iklim, kerentanan pesisir, kenaikan muka air laut, pulau kecil

Abstrak

Perubahan iklim yang terjadi akibat peningkatan suhu menyebabkan terjadinya perubahan kondisi laut. Peningkatan muka air laut serta peningkatan kejadian gelombang tinggi merupakan dampak akibat perubahan iklim. Kondisi ini mengancam keberadaan pulau-pulau kecil di dunia termasuk Indonesia. Salah satu pulau yang rentan terhadap kondisi ini adalah Pulau Sophialousia yang merupakan batas sisi Selatan Indonesia dengan Australia. Kerentanan Pulau Sophialousia dianalisis dengan Integrated Coastal Vulnerability Index (ICVI) serta menambahkan parameter kenaikan muka air laut. Jumlah parameter yang ditinjau adalah 7 (tujuh) parameter yaitu tipe lereng pantai, kondisi pantai, persentase pengaman pantai, persentase kejadian badai, persentase kejadian rob, kenaikan muka air laut (SLR), dan penggunaan lahan.Pemodelan CMS-Wave digunakan untuk simulasi strategi penanganan sebagai upaya menurunkan resiko kerentanan pulau. Hasil penilaian kerentanan dengan ICVI menunjukkan Pulau Sophialousia tergolong kerentanan tinggi akibat perubahan iklim. Sehingga strategi penanganan yang direkomendasikan adalah dengan pembangunan floating breakwater serta pembuatan revetment. Floating breakwater berfungsi untuk mereduksi gelombang badai, dan revetment berfungsi untuk meningkatkan elevasi pulau sehingga tahan terhadap SLR.

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Diterbitkan
2023-06-20
Terbitan
Vol 12 No 1 (2023)
Bagian
Articles

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