Total Suspended Solid (TSS) Mapping of Wadaslintang Reservoir Using Landsat 8 OLI

[摘要] Lakes, water reservoirs, and ponds are sources of fresh water that support the life of all living beings as well as human's social and economic activities. A common problem on reservoirs in Indonesia is the siltation due to the discharge of river materials into the reservoir. This process of sedimentation declines the function of the reservoir. Total Suspended Solid (TSS) can be used as the indicator of sediment in the reservoir, which usually consists of silt, fine sand and microorganisms. The high concentration of TSS in the water column can be used as the indication that the process of sedimentation in the reservoir is also high. This study aims to 1) map the spatial distribution of TSS and 2) estimate the TSS contained in Wadaslintang Reservoir using Landsat 8 OLI. The algorithm of TSS for Wadaslintang Reservoir was created based on the empirical relationship between field TSS data and reflectance values. Based on this research, it was found that the ratio of red and green band produced the best correlation with the TSS (r = 0.533). The resultant regression function of the regression analysis between ratio of red and green band and field TSS data was used to model the spatial distribution of the TSS on Wadaslintang Reservoir with standard error of 10.8 mg/l. The average TSS in the reservoir is estimated to be 22.61 mg/l.

[发布机构] Experimental Station for Hydrology and Water Management, Research Center for Water Resources, Ministry of Public Work and Housing, Indonesia^1;Cartography and Remote Sensing, Department of Geographic Information Science, Faculty of Geography, Universitas Gadjah Mada, Indonesia^2

[效力级别] 计算机科学 [学科分类] 计算机科学（综合）

[关键词] Economic activities;Empirical relationships;Fresh Water;Reflectance values;Regression function;Standard errors;Total suspended solids;Water columns