Hidayat, Arfico Rizky (2025) Pemantauan Multitemporal Estimasi Total Suspended Solids (TSS) dan Klorofil-a Berbasis Google Earth Engine Menggunakan Citra Satelit Landsat 8-9 (2020-2024) (Studi Kasus: Perairan Pantai Timur Surabaya). Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kawasan perairan Pantai Timur Surabaya merupakan wilayah strategis yang rentan terhadap pencemaran, terutama dari limbah domestik yang berasal dari aktivitas daratan. Penelitian ini bertujuan untuk menganalisis estimasi parameter kualitas air, yaitu Total Suspended Solids (TSS) dan klorofil-a, menggunakan citra satelit Landsat 8-9 OLI/TIRS secara multitemporal selama periode 2020-2024. Analisis dilakukan melalui pengolahan data citra pada platform Google Earth Engine dengan penerapan algoritma estimasi pada empat lokasi in situ: Muara Kali Jagir, Kali Wonorejo, Kali Dadapan, dan Kali Bonagung. Validasi dilakukan dengan membandingkan hasil estimasi citra dan data pengukuran lapangan yang diperoleh menggunakan metode gravimetri untuk TSS dan spektrofotometri untuk klorofil-a. Hasil menunjukkan bahwa konsentrasi TSS berfluktuasi antara 21-24 mg/L dengan nilai maksimum 25,057 mg/L pada April 2023. Secara spasial, TSS menunjukkan pola gradasi menurun dari pesisir ke laut lepas dengan nilai median 15,788-46,441 mg/L. Klorofil-a memiliki variabilitas lebih tinggi (0,0100-0,3000 μg/L), dengan nilai maksimum 0,4773 μg/L pada Maret 2023 yang mengindikasikan blooming fitoplankton. Validasi menunjukkan korelasi rendah untuk TSS (R²=0,001) dan tinggi untuk klorofil-a (R²=0,932), menunjukkan estimasi klorofil-a lebih akurat untuk pemantauan kualitas perairan.
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The coastal waters of East Surabaya is a strategic region that is vulnerable to pollution, particularly from domestic waste originating from land-based activities. This study aims to analyze the estimated water quality parameters—Total Suspended Solids (TSS) and chlorophyll-a—using multitemporal Landsat 8-9 OLI/TIRS satellite imagery over the 2020–2024 period. Image data were processed on the Google Earth Engine platform by applying estimation algorithms to four in situ locations: the estuaries of Kali Jagir, Kali Wonorejo, Kali Dadapan, and Kali Bonagung. Validation was conducted by comparing satellite-based estimates with field measurements obtained using gravimetric methods for TSS and spectrophotometry for chlorophyll-a. The results showed that TSS concentrations fluctuated between 21-24 mg/L, with a maximum value of 25.057 mg/L recorded in April 2023. Spatially, TSS exhibited a decreasing gradient from the shoreline toward offshore waters, with median values ranging from 15.788 to 46.441 mg/L. Chlorophyll-a demonstrated greater variability (0.0100-0.3000 μg/L), with a peak concentration of 0.4773 μg/L observed in March 2023, indicating a phytoplankton bloom. Validation results showed a weak correlation for TSS (R² = 0.001) and a strong correlation for chlorophyll-a (R² = 0.932), indicating that chlorophyll-a estimation is more accurate for coastal water quality monitoring.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Multitemporal, Estimasi, Total Suspended Solids, Klorofil-a, Google Earth Engine, Multitemporal, Estimation, Total Suspended Solids, Chlorophyll-a, Google Earth Engine |
| Subjects: | G Geography. Anthropology. Recreation > G Geography (General) > G70.5.I4 Remote sensing |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geomatics Engineering > 29202-(S1) Undergraduate Thesis |
| Depositing User: | Arfico Rizky Hidayat |
| Date Deposited: | 13 Jul 2025 06:42 |
| Last Modified: | 13 Jul 2025 06:42 |
| URI: | http://repository.its.ac.id/id/eprint/119530 |
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