What Is Flow Direction in GIS?
Flow direction calculates the direction water will flow in its eight adjacent cells using slope from neighboring cells (in a raster grid cell)
Month: March 2016
DEM, DSM & DTM: Elevation Models in GIS
We explore the differences between DEM (bare earth), DSM (natural and built environment) and DTM (vector contours and regularly-spaced points).
Geocoding: Longitude and Latitude by Address
Geocoding takes an address, then translates it to a location on a map. It changes an address to lat long coordinates (latitude and longitude).
5 Free Global DEM Data Sources – Digital Elevation Models
Want to elevate your chances of finding a digital elevation model? Sure you do. You should dive into our list of free global DEM data sources.