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Found 3 results

  1. Omar Eldaghar

    Where can I find best DEM data?

    Hi all, Why there's a difference in elevations between DEM data from USGS using WMS and google earth? I used DEM data from here: https://dds.cr.usgs.gov/srtm/version2_1/SRTM3/ Is there a better accurate more updated source? Thanks,
  2. Omar Eldaghar

    Where can I find best DEM data?

    Hi all, Why there's a difference in elevations between DEM data from USGS using WMS and google earth? I used DEM data from here: https://dds.cr.usgs.gov/srtm/version2_1/SRTM3/ Is there a better accurate more updated source? Thanks,
  3. Hi I have build a steady state model in GMS using the conceptuel approach generating solids and streams. I wanted to incoprate drains into my model using a polygon based shapefile. This is no problem until I run a simulation check in MODFLOW. Then I get the folowing error: Error: Drain elevation is below cell bottom in cell i=31, j=52, k=1 for stress period 1. .... ... ... and so on for several cells. What does this error message mean? The model run without any problems. Thanks-
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