Part 3 – Data Export

Chapter 3.3 – Export DEM

Overview

This chapter describes the steps to export the DEM into a variety of external data formats.

Export DEM

Digital elevation, surface and terrain models are often the foundation for many architectural and geographic projects including construction, environmental modeling and site design. It is advantageous to be able to export the elevation data in a wide range of formats (listed below) in order to facilitate more advanced spatial analysis. Export data formats include;

Screenshot showing the list of DEM export formats including TIFF/BIL/XYZ, Sputnik KMZ, Google Map Tiles, MBTiles and World Wind Tiles
DEM export formats

ESRI ArcMap or QGIS are very popular GIS software packages which allow for multi-criteria analysis of overlapping data sets and DEM’s are one of the key layers in geospatial analysis. To export the DEM, right-click on it in the Workspace, select Export DEM… and select the desired format (e.g. TIFF/BIL/XYZ).

The suggested output parameters are shown in the screenshot below, but they may vary depending on the specific software and user requirements.

Screenshot of the DEM export dialogue box with settings as follows; coordinate system set to NAD83, pixel size in meters adjusted to 0.01 for both X and Y, No-data value changed to -9999, and Write World file checked on.
DEM export settings

Once exported, the DEM can be added as a layer in the GIS software package.

License

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Processing UAS Photogrammetric Images in Agisoft Photoscan Professional Copyright © 2018 by Eric A Saczuk is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, except where otherwise noted.

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