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dc.contributor.authorAPRILIA, Ririn
dc.contributor.authorHIDAYAH, Entin
dc.contributor.authorKOESOEMAWATI, RR Dewi Junita
dc.date.accessioned2022-06-23T02:06:49Z
dc.date.available2022-06-23T02:06:49Z
dc.date.issued2021-12-08
dc.identifier.govdocKODEPRODI1910301#Teknik Sipil
dc.identifier.urihttp://repository.unej.ac.id/xmlui/handle/123456789/107214
dc.description.abstractFlood is one of the disaster threats downstream of Welang river, Pasuruan. A flood susceptibility map is needed to anticipate floods disasters. This research aimed to map flood Susceptibility in the Welang watershed using a Geographical Information System. In determining flood hazard, the Frequency Ratio (FR) approach was used. Flood locations were identified from the interpretation of field survey data as training data and model validation. The data were represented in a Digital Elevation Model (DEM) map, geological data, land use, river data, and Landsat Satellite Imagery and processed into a spatial database on the GIS platform. The factors that caused flooding consisted of Flood inventory, slope, Elevation, Topographic Wetness Index (TWI), Standardized Precipitation Index (SPI), Flow Accumulation, Distance to the river, River Density, Rainfall, Vegetation Index (NDVI), and Landuse. The map results with acceptable accuracy showed that the FR model gained an Area Under Curve (AUC) value of 90%, and the incidence for the Area Under Curve ( AUC ) was 93%. It is known that 1% of the flood-prone area is very high. The local Government can use the research to minimize the risk of flooding in the Welang watershed.en_US
dc.language.isoenen_US
dc.publisherICWRDEPen_US
dc.subjectfrequency ratioen_US
dc.subjectflood susceptibilityen_US
dc.subjectgeomorphologyen_US
dc.subjectmappingen_US
dc.titleFrequency ratio application for mapping flood susceptibility in Welang Watershed, East Javaen_US
dc.typeArticleen_US


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