Abrasi Aliran Air Tanah Calibration Catchment well Chemical Engineering Civil Engineering Computer Engineering DAS DSAS ERT ETD Electrical and Electronics Flood GIS GR4J Gambut Kandungan karbon Koefisien Refleksi Materials Science and Engineering Mechanical Engineering Metallurgy Ocean Engineering PDV (Paper Disk Velocimeter) Parameters Periode Gelombang Permodelan Rangsang Island River Estuary Dumai Space Utilization Structural Engineering Sudut Pantai Buatan Tinggi Gelombang Water quality climate changes coastal vulnerability index costs daya dukung elevasi muka air tanah geomorphology kedalaman gambut kematangan gambut keseimbangan air komoditas ramah gambut lahan gambut metode regresi muka air tanah nilai investasi bangunan nilai korelasi nilai resistivity numerical model