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I'm trying to apply this equation through the raster calculator in ArcGIS:

enter image description here

I'm using this syntax:

( ( ( (Raster) ^ 4 ) - (1-e) * ( Sky T ^ 4 ) ) / e ) ^ 0.25

The raster calculator create a raster with no values

I'm doing something bad?

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2 Answers 2

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** is the power operator not ^.

((((Raster) ** 4) - (1-e) * (SkyT ** 4)) / e) ** 0.25
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I am surprised that you can get it even to process at all.

I assume Tr, E, and Tsky are rasters. Try:

Power(((Power("RASNAME",4) - (1 - "RASNAME2") * Power("RASNAME3",4)) / "RASNAME2"),0.25)
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  • Haha thanks, E and Tsky are not rasters, is possible to use ** as power? Dec 21, 2017 at 20:14
  • give it a whirl and find out :)
    – D_C
    Dec 21, 2017 at 20:18

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