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Question

raster aspect/slope reverse engineering

  • September 6, 2015
  • 0 replies
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jaro
Contributor
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Hello,

 

would anyone have an idea how to reconstruct an original elevation model if only slope-grid and aspect-grid are available?

 

I am looking for a smarter way than this tideous:

 

 

1. split the overall aspect to x and y aspect

 

2. calculate the subsequent x and y slope

 

3. make an iterative sum over the rows, thus reaching the z values

 

4. cross-check / average with the same method over the columns

 

5. calibrate an z-offset at known point

 

6. make a grid
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