THE USE OF THE DIGITAL ELEVATION MODEL (DEM) IN THE PRODUCTION OF TOPOGRAPHIC MAPS A REVIEW

Abstract

This study was conducted in northern Iraq / Dohuk governorate, which represents the border strip between Iraq and Turkey, which is bordered by Erbil and Mosul governorates, and lies astronomically between longitude (43°20'0" - 44°20'0"E ) and latitude (36°20'0"-37°20'0"N). The study area is considered a very wide area with a varied topographic nature that is interspersed with many topographical features. For the purpose of producing digital topographic maps, the data of the digital elevation model (DEM) was used using (ArcGIS), and the DEM visualization of the Japanese satellite (Alos Palsar) with high spatial accuracy (12.5M) was used, which we will rely on in Topographical analysis of the study area and (contour map, slope map, aspect map and elevation map from sea level were produced).