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I have used PCI to create an aspect image from my DEM. Why are the resultant range of values in my aspect image between 0 and 510 instead of 0 and 360?

April 26, 2017aspect create DEM image PCI range resultant Used values

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I have used PCI to create an aspect image from my DEM. Why are the resultant range of values in my aspect image between 0 and 510 instead of 0 and 360?

1 Answer

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The value of 510 is a default value that represents the areas of your image that had no slope, if you look closer at your values you will notice that they should be between 0 and 360 with the exception of the 510 values that are representing zero slope, since no slope would have no orientation.