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To put things clear, I assume that you want to compute the area which responds to the following conditions: located inside your DEM altitude interval located inside your vector boundaries located where your second raster (let's call it raster2) has values other than "nodata" (this is the unclear part of your post, feel free to correct me if I ...


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I think you should have a look at ESRI's new ArcGIS Earth. It is also a free application, and is in many ways comparable to Google Earth, albeit the display of some of the imagery not as sharp and detailed as in Google Earth. However, the great thing about ArcGIS Earth is that you can very easily add, and overlay, any WM(T)S service on top of the globe, ...


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1) The OSM Layer (that is, the one named osm) is added to the map, but because you have added the Mapquest layer (the one named openstreetmap) as well, the osm layer is hidden beneath it. And because you haven't added osm as one of the basemaps in your layer control, you have no way to turn off the other layers and reveal it. 2) The precipitation layer ...


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Before you do, Make a backup of your layer in case if it becomes corrupt. You should be able to do the following: If you are doing a few then do this: Start Editing. Click on the Attributes Use the "Edit Tool " Drag over a polygon. On the Attributes, See if there are two overlaps. If you see two overlaps, delete the ones you wanted. If you are doing the ...



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