Suggest a dataset here. Home U. Metadata Updated: December 11, License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U. Government Work. Visit page. Open With Toggle dropdown Data. Karst Modeling. Hydrogeological Modeling. Aug 12, Aug 10, Aug 4, Jun 29, Mar 15, Feb 23, Dec 4, Online Course: Python for Hydrology. Now we will extract contours from this image.
You may also be interested in QGIS tutorial. Now you can easily analyze the surface by seeing the contour map. Hope this tutorials helped you. If you want to share some suggestion or want to ask some question do comment below. IMG file, newer version that is georeferenced and the older. I would like to overlay in GE, Can you help? Interesting read and very helpful.
The neat thing about is that it is the most precise global-scale elevation data now. Because nothing beats LiDAR for spatial accuracy. If you tell them what you are using it for, they sometimes hand out LiDAR for free. From spaceborne to airborne, from Earth to Mars — you now have the right tools to position yourself vertically on any location of the planets. The USGS has digital elevation models. You would need LiDAR data for that.
Would anyone happen to know the best source. Hey I want topography surfaces i. Which source could be more accurate according to my location and criteria. I will be exporting that topo surface to Autodesk revit and there i will use it as a filter so that which of my building can reside on that topography. If yes where can I get it? If NO when will it be released?? I am on the Earth Explorer page but I do not see where I can find astgtm2 files.
Can anyone help me? Hi Matthias.
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