Identifikasi Perubahan Indeks Kerapatan Bangunan Pasca Likuifaksi di Kota Palu

Authors

  • Sandi Pranata Politeknik Pertanian Negeri Samarinda
  • Nia Kurniadin Politeknik Pertanian Negeri Samarinda

DOI:

https://doi.org/10.51967/tanesa.v22i1.469

Keywords:

NDBI, Sentinel-2, Kota Palu, Likuifaksi, Gempa Bumi, Tsunami

Abstract

Kota Palu adalah ibukota dari Provinsi Sulawesi Tengah, Indonesia. Pada tanggal 28 september 2018 telah terjadi bencana alam berupa gempa bumi berkekuatan 7,4 Skala Richter (SR) yang diikuti dengan tsunami, serta likuifaksi yang melanda Kelurahan Petobo dan Balaroa. Gempa bumi, tsunami dan likuifaksi tidak hanya menyebabkan korban jiwa, namun juga menyebabkan kerusakan terhadap bangunan yang ada di Kota Palu dan sekitarnya. Tujuan penelitian ini adalah untuk mengidentifikasi perubahan indeks kerapatan bangunan di Kota Palu pasca likuifaksi menggunakan citra Sentinel-2 tanggal 27 September 2018 dan 2 Oktober 2018. Metode yang digunakan dengan pendekatan Normalized Difference Built-Up Index (NDBI) pada kedua citra sehingga mendapatkan perubahan kerapatan bangunan pasca Likufaksi di Kota Palu. Hasil penelitian menunjukkan bahwa nilai indeks kerapatan bangunan berdasarkan kelas kerapatan non-bangunan, kerapatan bangunan rendah, kerapatan bangunan sedang, dan kerapatan bangunan tinggi secara berturut-turut mengalami perubahan -605.07 Ha, 61.07 Ha, 369.36 Ha, dan 174.64 Ha. Kelurahan Petobo mengalami dampak Likuifaksi 163 Ha, sedangkan Kelurahan Balaroa mengalami dampak Likuifaksi 39.54 Ha.

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Published

2021-06-02

How to Cite

Pranata, S. ., & Kurniadin, N. . (2021). Identifikasi Perubahan Indeks Kerapatan Bangunan Pasca Likuifaksi di Kota Palu. Buletin Poltanesa, 22(1), 27–32. https://doi.org/10.51967/tanesa.v22i1.469

Issue

Vol. 22 No. 1 (2021): Juni 2021

Section

Geomatics Technology

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