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Jatiluhur Reservoir located in Purwakarta Regency, West Java is one of the largest reservoirs in Indonesia. Various studies have been done to determine the quality of water in the reservoir. The presence of locally made satellites, LISAT, can be a tool for monitoring the reservoir’s water constituent using satellite imagery. Our purpose here is to define the spectral reflectance properties on Jatiluhur Reservoir and determine the water column constituents that correlate with the observed lake color. In addition, this study also aims to compare the spatial, temporal, and spectral resolutions of LISAT imagery and Landsat imagery in the Jatiluhur Reservoir region. Based on the table of the relationship between TSI with chlorophyll a parameter, the TSI value is in the range of 80 90. TSI 80 value> falls into the category of hypereutrophic waters. The estimated result from Landsat and LISAT imageries still show different results. Chlorophyll-a value from image processing also show significance differences from Chlorophyll-a value derived from laboratory analysis.

Comparison of LISAT and Landsat imagery for estimating chlorophyll-a (case study: Jatiluhur Reservoir)