dexgeo Posted March 14, 2014 Report Share Posted March 14, 2014 Has anyone tried to interpolate the pixels of Aster GDEM 30 m to 5 meters in ArcGIS 10.2?If anyone can help me please. Thanks 1 Quote Link to comment Share on other sites More sharing options...
3dbu Posted March 14, 2014 Report Share Posted March 14, 2014 the process will be simple just make a netfill for all the area that you need and make and simple interpolations process i suggested Topo to Raster and change the pixel size of the output , this can be and simple interpolation process...hope be usefull. Quote Link to comment Share on other sites More sharing options...
dexgeo Posted March 14, 2014 Author Report Share Posted March 14, 2014 the process will be simple just make a netfill for all the area that you need and make and simple interpolations process i suggested Topo to Raster and change the pixel size of the output , this can be and simple interpolation process...hope be usefull. 3bdu Hello, my reading in English is not very good. But as I'll make a top to raster with the Aster GDEM file is already in raster format? Quote Link to comment Share on other sites More sharing options...
dexgeo Posted March 14, 2014 Author Report Share Posted March 14, 2014 Has anyone tried to interpolate the pixels of Aster GDEM 30 m to 5 meters in ArcGIS 10.2? If anyone can help me please. Thanks Has anyone tried resampling the pixels of Aster GDEM 30 m to 5 meters in ArcGIS 10.2? If anyone can help me please. Thanks for all Quote Link to comment Share on other sites More sharing options...
bdsmolla Posted March 14, 2014 Report Share Posted March 14, 2014 This kind of resampling is meaning less however if you really need to do that just follow the steps below: 1. Add 30m DEM to ArcMap 2. Right click on the added layer, place your mouse to 'Data' then click to 'Export Data' 3. From the Export Raster Data - dialog box, just change the Cell Size (as you wanted to 5m) (Don't forget to change No Data value as well if needed to change) Hope, this process will be simple for you. Quote Link to comment Share on other sites More sharing options...
3dbu Posted March 14, 2014 Report Share Posted March 14, 2014 This kind of resampling is meaning less however if you really need to do that just follow the steps below: 1. Add 30m DEM to ArcMap 2. Right click on the added layer, place your mouse to 'Data' then click to 'Export Data' 3. From the Export Raster Data - dialog box, just change the Cell Size (as you wanted to 5m) (Don't forget to change No Data value as well if needed to change) Hope, this process will be simple for you. but after all this process the DEM output is just a 5 meter but the source is 30 meter....regards Quote Link to comment Share on other sites More sharing options...
Lurker Posted March 15, 2014 Report Share Posted March 15, 2014 yep, resampling into more detail resolution is meaningless, you can do that only for compatibility purpose, Quote Link to comment Share on other sites More sharing options...
yanggis Posted March 15, 2014 Report Share Posted March 15, 2014 Aster DEM vertical accuracy is low, I do not suggest u use it. Quote Link to comment Share on other sites More sharing options...
Lurker Posted March 15, 2014 Report Share Posted March 15, 2014 compare to SRTM, which one you choose yanggis? right now, only those two available for free, Quote Link to comment Share on other sites More sharing options...
juliusmall Posted March 15, 2014 Report Share Posted March 15, 2014 Beside the precision problems, ASTER is full with artifacts, gaps, etc. I suspect that is working bad in the areas with clouds. I think I remember T is for thermal reflectance. Sure in my work area, near the equator ASTER has problem. Use SRTM as basis and ASTER if is a place without artifacts. An yes, it is an elevation difference. 1 Quote Link to comment Share on other sites More sharing options...
dexgeo Posted March 17, 2014 Author Report Share Posted March 17, 2014 Greetings Friends, Thank you for enlightening answers. Quote Link to comment Share on other sites More sharing options...
poorbaby Posted March 18, 2014 Report Share Posted March 18, 2014 Hi dexgeo, Do you want to interpolate Aster GDEM 30 m to 5m in ArcGIS 10.2? I have some ideal about the method. There'r some step you need to do: 1. Convert Aster DEM 30 to contour ( Use to tool contour). Note: you need take "contour interval" : 5 (it's distance two line 5m) 2. Convert contour to point 3. When you have points, you used to interpolation in arcgis (IDW tool or kringing tool ...). It's DEM you need. Note: Setting parameters in field before you run tools. I hope i can help you. Quote Link to comment Share on other sites More sharing options...
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