Tool Effective Air Flow Heights
Effective Air Flow Heights
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.
- Author: J.Boehner, O.Conrad (c) 2008
- Menu: Terrain Analysis|Climate and Weather
Parameters
Name | Type | Identifier | Description | Constraints | |
---|---|---|---|---|---|
Input | Elevation | Grid, input | DEM | - | - |
Wind Direction (*) | Grid, input, optional | DIR | Direction into which the wind blows, starting with 0 for North and increasing clockwise. | - | |
Wind Speed (*) | Grid, input, optional | LEN | - | - | |
Output | Effective Air Flow Heights | Grid, output | AFH | - | - |
Options | Grid System | Grid system | PARAMETERS_GRID_SYSTEM | - | - |
Wind Direction Units | Choice | DIR_UNITS | - | Available Choices: [0] radians [1] degree Default: 0 | |
Scaling | Floating point | LEN_SCALE | - | Default: 1.000000 | |
Search Distance [km] | Floating point | MAXDIST | - | Minimum: 0.000000 Default: 300.000000 | |
Constant Wind Direction | Floating point | DIR_CONST | constant direction into the wind blows, given as degree | Default: 135.000000 | |
Old Version | Boolean | OLDVER | use old version for constant wind direction (no acceleration and averaging option) | Default: 0 | |
Acceleration | Floating point | ACCEL | - | Minimum: 1.000000 Default: 1.500000 | |
Elevation Averaging | Boolean | PYRAMIDS | use more averaged elevations when looking at increasing distances | Default: 0 | |
Windward Factor | Floating point | LEE | - | Default: 0.500000 | |
Luv Factor | Floating point | LUV | - | Default: 3.000000 | |
(*) optional |
Command-line
Usage: saga_cmd ta_morphometry 11 [-DEM <str>] [-DIR <str>] [-DIR_UNITS <str>] [-LEN <str>] [-LEN_SCALE <double>] [-AFH <str>] [-MAXDIST <double>] [-DIR_CONST <double>] [-OLDVER <str>] [-ACCEL <double>] [-PYRAMIDS <str>] [-LEE <double>] [-LUV <double>] -DEM:<str> Elevation Grid, input -DIR:<str> Wind Direction Grid, input, optional -DIR_UNITS:<str> Wind Direction Units Choice Available Choices: [0] radians [1] degree Default: 0 -LEN:<str> Wind Speed Grid, input, optional -LEN_SCALE:<double> Scaling Floating point Default: 1.000000 -AFH:<str> Effective Air Flow Heights Grid, output -MAXDIST:<double> Search Distance [km] Floating point Minimum: 0.000000 Default: 300.000000 -DIR_CONST:<double> Constant Wind Direction Floating point Default: 135.000000 -OLDVER:<str> Old Version Boolean Default: 0 -ACCEL:<double> Acceleration Floating point Minimum: 1.000000 Default: 1.500000 -PYRAMIDS:<str> Elevation Averaging Boolean Default: 0 -LEE:<double> Windward Factor Floating point Default: 0.500000 -LUV:<double> Luv Factor Floating point Default: 3.000000