Tool Convergence Index (Search Radius)
Reference:
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 of Geography, University of Goettingen, unpublished]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 | - | - |
Radius [Cells] | Floating point | RADIUS | - | Minimum: 1.000000 Default: 10.000000 | |
Weighting | Parameters | WEIGHTING | - | 4 Parameters: - 1. Available Choices: [0] no distance weighting [1] inverse distance to a power [2] exponential [3] gaussian weighting Default: 0 - 2. Minimum: 0.000000 Default: 1.000000 - 3. Default: 1 - 4. Minimum: 0.000000 Default: 1.000000 | |
Gradient | Boolean | SLOPE | - | Default: 0 | |
Difference | Choice | DIFFERENCE | - | Available Choices: [0] direction to the center cell [1] center cell's aspect direction Default: 0 |
Command-line
Usage: saga_cmd ta_morphometry 2 [-ELEVATION <str>] [-CONVERGENCE <str>] [-RADIUS <double>] [-DISTANCE_WEIGHTING_DW_WEIGHTING <str>] [-DISTANCE_WEIGHTING_DW_IDW_POWER <double>] [-DISTANCE_WEIGHTING_DW_IDW_OFFSET <str>] [-DISTANCE_WEIGHTING_DW_BANDWIDTH <double>] [-SLOPE <str>] [-DIFFERENCE <str>] -ELEVATION:<str> Elevation Grid (input) -CONVERGENCE:<str> Convergence Index Grid (output) -RADIUS:<double> Radius [Cells] Floating point Minimum: 1.000000 Default: 10.000000 -DISTANCE_WEIGHTING_DW_WEIGHTING:<str> Weighting Function Choice Available Choices: [0] no distance weighting [1] inverse distance to a power [2] exponential [3] gaussian weighting Default: 0 -DISTANCE_WEIGHTING_DW_IDW_POWER:<double> Inverse Distance Weighting Power Floating point Minimum: 0.000000 Default: 1.000000 -DISTANCE_WEIGHTING_DW_IDW_OFFSET:<str> Inverse Distance Offset Boolean Default: 1 -DISTANCE_WEIGHTING_DW_BANDWIDTH:<double> Gaussian and Exponential Weighting Bandwidth Floating point Minimum: 0.000000 Default: 1.000000 -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