Tool Vector Ruggedness Measure (VRM)
Vector Ruggedness Measure (VRM)
References
- Sappington, J.M., Longshore, K.M., Thompson, D.B. (2007): Quantifying Landscape Ruggedness for Animal Habitat Analysis: A Case Study Using Bighorn Sheep in the Mojave Desert. Journal of Wildlife Management 71(5):1419–1426. online.
- Author: O.Conrad (c) 2010
- Menu: Terrain Analysis|Morphometry
Parameters
Name | Type | Identifier | Description | Constraints | |
---|---|---|---|---|---|
Input | Elevation | grid, input | DEM | - | - |
Output | Vector Terrain Ruggedness (VRM) | grid, output | VRM | - | - |
Options | Grid System | grid system | PARAMETERS_GRID_SYSTEM | - | - |
Search Mode | choice | MODE | - | Available Choices: [0] Square [1] Circle Default: 1 | |
Search Radius | integer number | RADIUS | radius in cells | Minimum: 1 Default: 1 | |
Weighting Function | choice | DW_WEIGHTING | - | Available Choices: [0] no distance weighting [1] inverse distance to a power [2] exponential [3] gaussian Default: 0 | |
Power | floating point number | DW_IDW_POWER | - | Minimum: 0.000000 Default: 2.000000 | |
Bandwidth | floating point number | DW_BANDWIDTH | Bandwidth for exponential and Gaussian weighting | Minimum: 0.000000 Default: 1.000000 |
Command-line
Usage: saga_cmd ta_morphometry 17 [-DEM <str>] [-VRM <str>] [-MODE <str>] [-RADIUS <num>] [-DW_WEIGHTING <str>] [-DW_IDW_POWER <double>] [-DW_BANDWIDTH <double>] -DEM:<str> Elevation grid, input -VRM:<str> Vector Terrain Ruggedness (VRM) grid, output -MODE:<str> Search Mode choice Available Choices: [0] Square [1] Circle Default: 1 -RADIUS:<num> Search Radius integer number Minimum: 1 Default: 1 -DW_WEIGHTING:<str> Weighting Function choice Available Choices: [0] no distance weighting [1] inverse distance to a power [2] exponential [3] gaussian Default: 0 -DW_IDW_POWER:<double> Power floating point number Minimum: 0.000000 Default: 2.000000 -DW_BANDWIDTH:<double> Bandwidth floating point number Minimum: 0.000000 Default: 1.000000