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View Code? Open in Web Editor NEWA revised version of the topographic wetness index written for arcpython
A revised version of the topographic wetness index written for arcpython
TWI = ln(α/tanβ);
α is upslope area per unit contour length (m) which calculated as (flow accumulation + 1) × (cell size);
β is the slope expressed in radians
I am using arcpy with this script, I am getting TWI values negative.
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