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All Journal Jurnal Samudra Geografi
Aswaly Dinove Chandra
Universitas Pendidikan Indonesia
Humanities Earth & Planetary Sciences Education Environmental Science Social Sciences

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KOMPARASI DELINIASI MICRO-DAS CISANGKUY : ANALISIS SPASIAL BERBASIS DEMNAS DAN SRTM Aswaly Dinove Chandra; Sarah Safa Muthmainnah; Anggi Nur ’Apifah; Andy Wibawa Nurrohman; Haikal Muhammad Ihsan
Jurnal Samudra Geografi Vol 9 No 2 (2026)
Publisher : Program Studi Pendidikan Geografi, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jsg.v9i2.12974

Abstract

This study aims to analyze differences in the delineation results of the Cisangkuy Micro-Watershed using two types of Digital Elevation Model (DEM) data: DEMNAS and SRTM. The Cisangkuy sub-watershed, located in the upstream area of the Citarum Watershed, was selected due to its vital role in providing raw water for the West Java region, particularly Bandung Regency. A Geographic Information System (GIS)-based approach was used to compare spatial parameters such as elevation, watershed area, slope, and shape ratio. The results show that DEMNAS, with its higher resolution, captures topographic variations in greater detail than SRTM, resulting in watershed boundary delineation that better aligns with the region's hydrological characteristics. Differences in area, slope, and shape ratio parameters indicate that the choice of DEM data significantly influences the results of the spatial analysis. This study concludes that DEMNAS is superior for micro-scale watershed modeling and can support more accurate and precise watershed management planning.
Co-Authors Andy Wibawa Nurrohman Anggi Nur ’Apifah Ihsan, Haikal Muhammad Sarah Safa Muthmainnah