Comparison of DEM Data Capture and Topographic Wetness Indices

  title={Comparison of DEM Data Capture and Topographic Wetness Indices},
  author={Frank Schmidt and Andreas Persson},
  journal={Precision Agriculture},
Digital elevation models (DEMs) can be captured and analysed by various methods. Elevation capturing with RTK-GPS and airborne laser scanning is presented and evaluated in terms of height accuracy of raw data and interpolated DEMs for study sites in Sweden and Germany. Applications for precision agriculture are based on the connection of land surface and the movement of water in the landscape. Three methods of deriving potential flow accumulation from DEMs are discussed. Results indicate that… CONTINUE READING
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