Tool Morphometric Protection Index
This algorithm analyses the immediate surrounding of each cell up to an given distance and evaluates how the relief protects it.
It is equivalent to the positive openness described in: Visualizing Topography by Openness: A New Application of Image Processing to Digital Elevation Models, Photogrammetric Engineering and Remote Sensing(68), No. 3, March 2002, pp. 257-266.
- Author: (c) 2005 by Victor Olaya
- Menu: Terrain Analysis|Morphometry
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | Elevation | Grid, input | DEM | - | - |
| Output | Protection Index | Grid, output | PROTECTION | - | - |
| Options | Grid System | Grid system | PARAMETERS_GRID_SYSTEM | - | - |
| Radius | Floating point | RADIUS | The radius in map units | Minimum: 0.000000
Default: 2000.000000 |
Command-line
Usage: saga_cmd ta_morphometry 7 [-DEM <str>] [-PROTECTION <str>] [-RADIUS <double>]
-DEM:<str> Elevation
Grid, input
-PROTECTION:<str> Protection Index
Grid, output
-RADIUS:<double> Radius
Floating point
Minimum: 0.000000
Default: 2000.000000