New answers tagged idrisi
You can use the tiff file in ArcMap. You would then use the Slope Tool from 3D Analyst or from Spatial analyst. If you have a high resolution Lidar DHM, i.e. with a resolution finer then 1m, you should consider to downscale the resolution. Especially if you only have handheld GPS coordinates for your soil plots. If you have DGPS, the high resolution LIDAR ...
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