Convergence Index (Search Radius)
| Author(s) | O.Conrad (c) 2003 |
| Library ID | ta_morphometry |
| Tool ID | 2 |
| Version | 1.0 |
| Menu | Terrain Analysis | Morphometry |
Description
Convergence Index (Search Radius)
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | Elevation | grid, input | ELEVATION | - | - |
| Output | Convergence Index | grid, output | CONVERGENCE | - | - |
| Options | 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 number | RADIUS | - | Minimum: 1.000000
Default: 10 |
| 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 |
| Bandwidth | floating point number | DW_BANDWIDTH | Bandwidth for exponential and Gaussian weighting | Minimum: 0.000000
Default: 1 |
Command Line
Usage: saga_cmd ta_morphometry 2 [-ELEVATION ] [-CONVERGENCE ] [-SLOPE ] [-DIFFERENCE ] [-RADIUS ] [-DW_WEIGHTING ] [-DW_IDW_POWER ] [-DW_BANDWIDTH ]
-ELEVATION: Elevation
grid, input
-CONVERGENCE: Convergence Index
grid, output
-SLOPE: Gradient
boolean
Default: 0
-DIFFERENCE: Difference
choice
Available Choices:
[0] direction to the center cell
[1] center cell's aspect direction
Default: 0
-RADIUS: Radius [Cells]
floating point number
Minimum: 1.000000
Default: 10
-DW_WEIGHTING: Weighting Function
choice
Available Choices:
[0] no distance weighting
[1] inverse distance to a power
[2] exponential
[3] gaussian
Default: 0
-DW_IDW_POWER: Power
floating point number
Minimum: 0.000000
Default: 2
-DW_BANDWIDTH: Bandwidth
floating point number
Minimum: 0.000000
Default: 1