DEM

Plotting a Digital Elevation Model Profile in GEE

Plotting a Digital Elevation Model Profile in GEE

A digital elevation model is a representation of the bare ground topographic surface of the earth exclusive of trees, buildings and other objects on the earth’s surface. Digital elevation models are extracted from sources such as topographic maps, high resolution LiDAR (Light Detection and Ranging) or IfSAR (interferometric Synthetic Aperture Radar). However, LiDAR and IfSAR…

Generating Contours from  DEM in QGIS

Generating Contours from DEM in QGIS

      A few weeks ago I wrote a post on “Generating DEMs from Contours” which was quite a straight forward process as explained.In this post , I will show how to “reverse engineer” the process and generate contours from DEMs. This time round am also going to demonstrate how to clip our dataset to work…

Generating DEMS from Contours in QGIS

Generating DEMS from Contours in QGIS

Well, Today was a great day in my GIS works. A colleague asked “Can I generate a DEM of my region using QGIS?” This was my answer to them “YES”. Then they asked me “How?” I ended up spending the next one hour doing the demo on my laptop for them to grasp the rough…