Diurnal Anisotropic Heat

Author: J.Boehner, O.Conrad (c) 2008
Menu: Terrain Analysis | Climate and Weather

Description

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

Boehner, J., & Antonic, O. (2009): Land-surface parameters specific to topo-climatology. In: Hengl, T., & Reuter, H. (Eds.): Geomorphometry - Concepts, Software, Applications. Developments in Soil Science, Volume 33, p.195-226, Elsevier. doi:10.1016/S0166-2481(08)00008-1.

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Elevation	grid, input	`DEM`	-	-
Output	Diurnal Anisotropic Heating	grid, output	`DAH`	-	-
Options	Grid System	grid system	`PARAMETERS_GRID_SYSTEM`	-	-
Options	Alpha Max (Degree)	floating point number	`ALPHA_MAX`	-	Minimum: 0.000000 Maximum: 360.000000 Default: 202.500000

Command Line

Usage: saga_cmd ta_morphometry 12 [-DEM ] [-DAH ] [-ALPHA_MAX ]
  -DEM:         	Elevation
	grid, input
  -DAH:         	Diurnal Anisotropic Heating
	grid, output
  -ALPHA_MAX:	Alpha Max (Degree)
	floating point number
	Minimum: 0.000000
	Maximum: 360.000000
	Default: 202.500000