APLIKASI PENGINDERAAN JAUH DAN SIG DENGAN METODE ANALYTICAL HIERARCHY PROCESS UNTUK KAJIAN KERAWANAN BANJIR DI DAS JALI COKROYASAN PURWOREJO

  • Bayu Aji Sidiq Pramono Universitas Gadjah Mada
  • Karunia Pasya Kusumawardani Universitas Gadjah Mada
  • Emy Puspita Yuendini Universitas Gadjah Mada
Keywords: flood, Jali Cokroyasan Watershed, remote sensing, GIS, suseptibility

Abstract

Hydrometeorological disaster is a disaster that is affected by meteorological parameters covering weather aspects such as rainfall, wind, temperature, and humidity. One of the hydrometeorological disasters occurring in Indonesia is flooding. In the last 8 years, there have been floods in the Jali Cokroyasan watershed that flooded some Purworejo regency. This research was conducted to determine the level of flood suseptibilty in Jali Cokroyasan watershed. The use of remote sensing technology and Geographic Information System (GIS) was applied to mapping the level of flood suseptibilty in Jali Cokroyasan watershed. Parameters used include rainfall, land use, slope, and landform. Rainfall data obtained from the Department of Agriculture Husbandry Marine and Fisheries Purworejo District. Land use data were obtained from Landsat 8 OLI image then processed based on unsupervised multispectral classification. The slope slope data is extracted from DEM ALOS PALSAR with 10 m resolution. Landform data is generated from visual interpretations of  DEM ALOS PALSAR and Landsat 8 OLI image. All parameters are processed by spatial analysis based on the Analytical Hierarchy Process (AHP) skoring method and Spatial Multi Criteria Evaluation (SMCE) overlay method. Model testing is conducted with the method of in depth interview. The results of the analysis is the map of flood suseptibility in Jali Cokroyasan watershed. Based on the map, downstream watershed approaching watershed outlets become areas prone to flood disaster because downstream downstream has a sloping topography. Zoning of vulnerability on the map is expected to be considered in tackling flood risks, increasing community capacity, and minimizing disaster losses.

Published
2019-04-29
How to Cite
Sidiq Pramono, B. A., Pasya Kusumawardani, K., & Yuendini, E. (2019, April 29). APLIKASI PENGINDERAAN JAUH DAN SIG DENGAN METODE ANALYTICAL HIERARCHY PROCESS UNTUK KAJIAN KERAWANAN BANJIR DI DAS JALI COKROYASAN PURWOREJO. Jurnal Meteorologi Klimatologi Dan Geofisika, 5(3), 1-10. Retrieved from https://jurnal.stmkg.ac.id/index.php/jmkg/article/view/70