SAGA-GIS Tool Library Documentation (v9.1.2)

Tool Diurnal Anisotropic Heat

This tool calculates a rather simple approximation of the anisotropic diurnal heat (Ha) distribution using the formula:
Ha = cos(amax - a) * arctan(b)
where amax defines the aspect with the maximum total heat surplus, a is the slope aspect and b is the slope angle. For more details see Boehner & Antonic (2009).


References


Parameters

 NameTypeIdentifierDescriptionConstraints
InputElevationGrid, inputDEM--
OutputDiurnal Anisotropic HeatingGrid, outputDAH--
OptionsGrid SystemGrid systemPARAMETERS_GRID_SYSTEM--
Alpha Max (Degree)Floating pointALPHA_MAX-Minimum: 0.000000
Maximum: 360.000000
Default: 202.500000

Command-line

Usage: saga_cmd ta_morphometry 12 [-DEM <str>] [-DAH <str>] [-ALPHA_MAX <double>]
  -DEM:<str>         	Elevation
	Grid, input
  -DAH:<str>         	Diurnal Anisotropic Heating
	Grid, output
  -ALPHA_MAX:<double>	Alpha Max (Degree)
	Floating point
	Minimum: 0.000000
	Maximum: 360.000000
	Default: 202.500000