Development of Digital Elevation Model (DEM) based on GPS station network in UiTM Perak Branch / Mohd Najib Husain, Munirah Radin Mohd Mokhtar and Saiful Anuar Jaafar@Ibrahim

This paper provides a unique accuracy assessment of the GPS points reference data sets to develop a Digital Elevation Model (DEM) for UiTM Perak of Seri Iskandar Campus. A Digital Elevation Model is a threedimensional, computer generated representation of a terrain surface and usually used in Geographic
Information Systems (GIS) analysis and digitally produced relief maps. The accurate vertical and their respective coordinates in which very important to create a DEM were obtained from 69 Real Time Kinematic Global Positioning System (RTK GPS) stations. These RTK GPS stations has been observed from previous survey campaign using Topcon GPS equipment set and software for processing. The GPS stations location scattered inside UiTM Perak of Seri Iskandar Campus with several of them located outside or near the campus. By using accurate coordinates and elevation based on GPS technology then all necessary check and adjustment can easily be made to produce a reliable DEM through ArcGIS 10.6 software. Lastly this Digital Elevation Model (DEM) project goals are to support student’s project (Land Surveying) and helping the UiTM Perak management for sustainable planning of development in future.