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Interpolate points arcgis5/1/2023 ![]() ![]() ![]() ![]() Science for Ukraine provides an overview of labs offering a place for researchers and students who are affected to work from, as well as offers of employment, funding, and accommodation:.Personally, I have found the messages of support from scientists everywhere to be truly heartfelt, and I would like to highlight some of the community initiatives I’ve seen here: We also want to use our platform to highlight the response from the scientific community. After running your interpolation, you could validate the surface by running the add surface information on your point data and new DEM - this will show you how closely the surface honours the original data. ArcGIS's help files have some good illustrations of how the different interpolators honour data - worth looking at before you decide. ![]() If you do decide to use splines you can increase the tension parameter to reduce the smoothing. If you really need to honour the data, then the natural neighbours/TIN is the way to go - splines may overshoot and undershoot your data, so will look smoother, but may not be as accurate. The TIN can then be exported as a grid at whatever resolution you like. You could also try Arc's Tin tools, and generate a terrain surface, which allows breaklines to be used (known steps in your region that relate to ridge-lines of other topographic features). My understanding is that ArcGIS uses natural neighbours when generating a TIN and I think this is the best interpolator to use as a first past. ![]()
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