Pemantauan Nilai Total Suspended Solid Dari Citra Sentinel-2A Dan Turbidity Lapangan Melalui Google Earth Engine (Studi Kasus: Situ Gede Tasikmalaya)

Andre Galih Rismawan; Hary Nugroho

Authors

Andre Galih Rismawan Institut Teknologi Nasional Bandung Author
Hary Nugroho Institut Teknologi Nasional Bandung Author

Keywords:

Total Suspended Solid (TSS), situ gede, Sentinel 2 Satellite Imagery, Google Earth Engine, turbidity

Abstract

Monitoring water quality in inland water bodies such as lakes and reservoirs is essential for environmental management. One of the key parameters is Total Suspended Solid (TSS), which indicates water turbidity caused by suspended particles. This study aims to monitor the spatial distribution of TSS in Situ Gede, Tasikmalaya using Sentinel-2A satellite imagery and the Google Earth Engine (GEE) platform. TSS mapping was conducted for three observation periods: February, May, and August 2024. Validation was carried out by comparing TSS estimates with turbidity data from field measurements. The results showed that TSS values ranged from 10.68 mg/L to 45.08 mg/L. A linear correlation analysis between satellite-derived TSS and field turbidity data yielded an R² value of 0.186, indicating a weak linear relationship. However, the spatial pattern of TSS distribution from the imagery aligned well with actual field conditions. These findings demonstrate the significant potential of Sentinel-2A imagery and GEE for efficient and spatially explicit water quality monitoring, especially in areas that are difficult to access.

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