Analisis Spasio Temporal Konsentrasi Total Suspended Solids Wilayah Muara Sungai Porong Tahun 2023 dan 2024 Menggunakan Citra Satelit Sentinel-2

Kirmandi, Muhammad Bagus (2024) Analisis Spasio Temporal Konsentrasi Total Suspended Solids Wilayah Muara Sungai Porong Tahun 2023 dan 2024 Menggunakan Citra Satelit Sentinel-2. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Lumpur Panas Sidoarjo merupakan bencana yang terjadi di Kecamatan Porong sejak tahun 2006. Dahulu dikarenakan semburan tidak kunjung berakhir, lumpur dialirkan ke Sungai Porong. Tindakan tersebut mengakibatkan tercemarnya perairan sungai akibat zat-zat seperti padatan tersuspensi atau Total Suspended Solids (TSS). Oleh karena itu perlu dilakukan monitoring secara temporal terhadap konsentrasi TSS di area Muara Sungai Porong. Tugas Akhir ini menggunakan Citra Sentinel-2 tahun 2023 hingga 2024 untuk analisis spasio temporal sedangkan satu citra bulan Maret tahun 2024 yang digunakan sebagai data pada uji akurasi dengan data lapangan. Kemudian dilakukan pemodelan algoritma dari perhitungan reflektan band. Hasil yang didapatkan yaitu reflektan band 8A (NIR Narrow) memiliki error terkecil dengan RMSE sebesar 10,744 mg/L sehingga band 8A digunakan sebagai algoritma TSS baru untuk menghitung spasio temporal TSS di Muara Sungai Porong tahun 2023 hingga 2024. Perhitungan TSS menggunakan algoritma baru dibandingkan dengan data TSS in situ dan didapatkan nilai RMSE 39,034 mg/L dan NMAE 3,445%. Tren spasio temporal TSS dipengaruhi oleh curah hujan karena ketika curah hujan tinggi maka nilai TSS tinggi dan ketika curah hujan rendah maka TSS bernilai rendah.
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Sidoarjo Hot Mud has been a disaster in the Porong Sub-district since 2006. In the past, because the outburst did not end, the mud was channeled into the Porong River. This action resulted in the contamination of river waters due to substances such as suspended solids or Total Suspended Solids (TSS). Therefore, it is necessary to temporally monitor the TSS concentration in the Porong River Estuary area. This Final Project uses Sentinel-2 images from 2023 to 2024 for spatio-temporal analysis, while one image from March 2024 is used as data in the accuracy test with field data. Then the algorithm modeling of the band reflectance calculation is carried out. The results obtained are reflectance band 8A (NIR Narrow) has the smallest error with an RMSE of 10.744 mg/L so band 8A is used as a new TSS algorithm to calculate the spatio-temporal TSS in the Porong River Estuary from 2023 to 2024. TSS calculation using the new algorithm was compared with in situ TSS data and obtained an RMSE value of 39.034 mg/L and NMAE of 3.445%. The spatiotemporal trend of TSS is influenced by rainfall because when rainfall is high, the TSS value is high, when rainfall is low, the TSS value is low.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Mud, River Estuary, Total Suspended Solids, Algorithm, Lumpur, Muara, Total Suspended Solids, Algoritma
Subjects:	Q Science > QE Geology > QE528 Mudflows
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geomatics Engineering > 29202-(S1) Undergraduate Thesis
Depositing User:	Muhammad Bagus Kirmandi
Date Deposited:	29 Jul 2024 13:55
Last Modified:	29 Jul 2024 13:55
URI:	http://repository.its.ac.id/id/eprint/109774

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