ANALISIS DIGITAL ELEVATION MODEL (DEM) MENGGUNAKAN ArcGIS 10.4.1 PADA KAWASAN BATURAJA PERMAI

Abstract

DEM is a digital model that provides surface shape information (topography) in the form of raster, vector or other data forms. The DEM contains elevation and slope data which simplifies interpretation. So it can be used in various aspects of life. In the field of disaster, DEM can be used for maps prone to floods or landslides. BaturajaPermai Village is one of the settlements in the BaturajaTimur sub-district, has an area of ​​96.6 Ha with a residential area of ​​51.4 Ha, road length 16 Km, drainage length 3.14 Km, vacant land area 45.2 Ha. To obtain altitude data for the BaturajaPeri area, direct measurements were carried out in the field using a measuring instrument, namely the Total Station and downloaded from DEMNAS. To generate a DEM map from the data, it is assisted by using ArcMap 10.4.1 software. DEM direct measurements with DEMNAS can be compared with the results that there is no very significant difference where the highest surface height of the DEM measurements is 69.44 masl with lowlands 45.70 masl, while DEMNAS in highlands is 75.65 masl with lowlands 40, 07 masl. From the altitude data, the Baturaja Indah area is a lowland area, where the lowlands are areas that are prone to flooding.