Module Wind Effect (Windward / Leeward Index)
- Author: J.Boehner, A.Ringeler (c) 2008, O.Conrad (c) 2011
- Specification: grid
- Menu: Terrain Analysis|Climate and Weather
Parameters
| Name | Type | Identifier | Description | Constraints | |
|---|---|---|---|---|---|
| Input | Elevation | Grid (input) | DEM | - | - |
| Wind Direction (*) | Grid (optional input) | DIR | Direction into which the wind blows, starting with 0 for North and increasing clockwise. | - | |
| Wind Speed (*) | Grid (optional input) | LEN | - | - | |
| Output | Wind Effect | Grid (output) | EFFECT | - | - |
| Effective Air Flow Heights (*) | Grid (optional output) | AFH | - | - | |
| Options | 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 | |
| (*) optional | |||||
Command-line
Usage: saga_cmd ta_morphometry 15 [-DEM <str>] [-DIR <str>] [-DIR_UNITS <str>] [-LEN <str>] [-LEN_SCALE <str>] [-EFFECT <str>] [-AFH <str>] [-MAXDIST <str>] [-DIR_CONST <str>] [-OLDVER <str>] [-ACCEL <str>] [-PYRAMIDS <str>] -DEM:<str> Elevation Grid (input) -DIR:<str> Wind Direction Grid (optional input) -DIR_UNITS:<str> Wind Direction Units Choice Available Choices: [0] radians [1] degree Default: 0 -LEN:<str> Wind Speed Grid (optional input) -LEN_SCALE:<str> Scaling Floating point Default: 1.000000 -EFFECT:<str> Wind Effect Grid (output) -AFH:<str> Effective Air Flow Heights Grid (optional output) -MAXDIST:<str> Search Distance [km] Floating point Minimum: 0.000000 Default: 300.000000 -DIR_CONST:<str> Constant Wind Direction Floating point Default: 135.000000 -OLDVER:<str> Old Version Boolean Default: 0 -ACCEL:<str> Acceleration Floating point Minimum: 1.000000 Default: 1.500000 -PYRAMIDS:<str> Elevation Averaging Boolean Default: 0