USA CERL                                                                                                                          GMSLab

  Using Soil Erosion Modeling for Improved Conservation Planning: 
A GIS-based Tutorial

Computing erosion modeling inputs from a DEM

 

10 Meter DEM (USGS)

The elevation data represented here was produced by the USGS at 10 meter grid size from contour data that had previously been used to produce the 30 meter resolution DEMs. A few new problems due to the TIN-based interpolation method were observed, such as waves along contours in steep areas, and noise in flat areas, leading to noisy and inconsistent contours and artificial dams in valleys due to triangulation.

 

10 Meter DEM (USGS)
IFSARE Interferometric Synthetic Aperture Radar for Elevation
Light Detection and Ranging (LIDAR)

HOME                                                        H. Mitasova, et al.,  Geographic Modeling Systems Lab, UIUC