Tool Convergence Index (Search Radius)
Convergence Index (Search Radius)
References
- Koethe, R. & Lehmeier, F. (1996): SARA - System zur Automatischen Relief-Analyse. User Manual, 2. Edition [Dept. of Geography, University of Goettingen, unpublished].
- Author: O.Conrad (c) 2003
- Menu: Terrain Analysis|Morphometry
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | Elevation | Grid, input | ELEVATION | - | - |
| Output | Convergence Index | Grid, output | CONVERGENCE | - | - |
| Options | Grid System | Grid system | PARAMETERS_GRID_SYSTEM | - | - |
| Gradient | Boolean | SLOPE | - | Default: 0 |
| Difference | Choice | DIFFERENCE | - | Available Choices:
[0] direction to the center cell
[1] center cell's aspect direction
Default: 0 |
| Radius [Cells] | Floating point | RADIUS | - | Minimum: 1.000000
Default: 10.000000 |
| 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 | DW_IDW_POWER | - | Minimum: 0.000000
Default: 2.000000 |
| Bandwidth | Floating point | DW_BANDWIDTH | Bandwidth for exponential and Gaussian weighting | Minimum: 0.000000
Default: 1.000000 |
Command-line
Usage: saga_cmd ta_morphometry 2 [-ELEVATION <str>] [-CONVERGENCE <str>] [-SLOPE <str>] [-DIFFERENCE <str>] [-RADIUS <double>] [-DW_WEIGHTING <str>] [-DW_IDW_POWER <double>] [-DW_BANDWIDTH <double>]
-ELEVATION:<str> Elevation
Grid, input
-CONVERGENCE:<str> Convergence Index
Grid, output
-SLOPE:<str> Gradient
Boolean
Default: 0
-DIFFERENCE:<str> Difference
Choice
Available Choices:
[0] direction to the center cell
[1] center cell's aspect direction
Default: 0
-RADIUS:<double> Radius [Cells]
Floating point
Minimum: 1.000000
Default: 10.000000
-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
Minimum: 0.000000
Default: 2.000000
-DW_BANDWIDTH:<double> Bandwidth
Floating point
Minimum: 0.000000
Default: 1.000000