CHOIRIAH, NABILA FITRI (2023) STUDI AREA PERAIRAN DANGKAL BERDASARKAN ANALISIS DIGITAL CITRA SENTINEL-2 DENGAN METODE SATELLITE-DERIVED BATHYMETRY DAN PEMERUMAN DI PULAU GENTING, KEPULAUAN KARIMUNJAWA (23dos327). Undergraduate thesis, Fakultas Perikanan dan Ilmu Kelautan.

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Abstract

ABSTRAK

(Nabila Fitri Choiriah. 26050118140061. Studi Area Perairan Dangkal Berdasarkan Analisis Digital Citra Sentinel-2 dengan Metode Satellite-Derived Bathymetry dan Pemeruman di Pulau Genting, Kepulauan Karimunjawa. Dwi Haryo Ismunarti dan Muhammad Helmi).

Indonesia memiliki perairan dangkal yang sangat luas. Untuk memetakannya, diperlukan kegiatan survei lapangan. Namun perairan dangkal relatif sulit dilalui oleh kapal karena banyak terdapat padang lamun dan terumbu karang. Kemajuan teknologi penginderaan jauh dapat diimplementasikan pada berbagai sektor, salah satunya pemetaan kedalaman perairan dangkal. Pemetaan kedalaman perairan dangkal dengan penginderaan jauh dapat menjadi solusi alternatif dalam mengatasi keterbatasan survei lapangan. Penelitian ini bertujuan untuk mengetahui seberapa tepat dan andal metode SDB dalam memetakan kedalaman perairan dangkal seperti perairan Pulau Genting. Data yang digunakan adalah citra satelit digital Sentinel-2A dengan tanggal akuisisi 28 Mei 2022, data pemeruman lapangan tanggal 26-28 Juni 2022, dan data pasang surut dengan periode 12 Juni–10 Juli 2022. Metode pengambilan data kedalaman lapangan dilakukan dengan alat fishfinder. Sedangkan metode pengolahan citra menggunakan algoritma Stumpf, pengolahan data pasang surut dilakukan dengan metode Admiralty, dan pengolahan data kedalaman lapangan menggunakan koreksi Mean Sea Level (MSL). Uji akurasi dan reliabilitas menggunakan RMSE, regresi linier, dan ICC. Hasil penelitian menunjukkan nilai akurasi (RMSE) sebesar 0,51 meter untuk kedalaman perairan 0 hingga -6 meter dengan regresi sebesar .

Kata kunci: Kedalaman, Satellite-Derived Bathymetry, Stumpf, Karimunjawa

ABSTRACT

(Nabila Fitri Choiriah. 26050118140061. Study of Shallow Water Area Based on Digital Sentinel-2 Imagery Analysis with Satellite-Derived Bathymetry and Field Sounding Method on Genting Island, Karimunjawa Islands. Dwi Haryo Ismunarti and Muhammad Helmi

Indonesia has vast shallow waters. To map them, field surveys are required. However, shallow waters are relatively difficult to navigate by ship because there are many seagrass beds and coral reefs. Advances in remote sensing technology can be implemented in various sectors, one of which is mapping the depth of shallow waters. Mapping the depth of shallow waters with remote sensing can be an alternative solution in overcoming the limitations of field surveys. This study aims to determine how accurate and reliable the SDB method is in mapping the depth of shallow waters such as the waters of Genting Island. The data used are Sentinel-2A digital satellite imagery with an acquisition date of May 28, 2022, field sounding data dated June 26-28, 2022, and tidal data with a period of June 12-July 10, 2022. The method of collecting field depth data was carried out with a fishfinder tool. While the image processing method uses the Stumpf algorithm, tidal data processing is done by the Admiralty method, and field depth data processing uses Mean Sea Level (MSL) correction. Accuracy and reliability tests using RMSE and linear regression. The results showed an accuracy value (RMSE) of 0.51 meters for water depths of 0 to 6 meters with a regression of .

Keywords: Bathymetry, Satellite-Derived Bathymetry, Stumpf, Karimunjawa

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