Tool Multiresolution Index of Valley Bottom Flatness (MRVBF)
Calculation of the 'multiresolution index of valley bottom flatness' (MRVBF) and the complementary 'multiresolution index of the ridge top flatness' (MRRTF).
References
- Gallant, J.C., Dowling, T.I. (2003): A multiresolution index of valley bottom flatness for mapping depositional areas. Water Resources Research, 39/12:1347-1359. Wiley.
- Author: O.Conrad (c) 2006
- Menu: Terrain Analysis|Morphometry
Parameters
Name | Type | Identifier | Description | Constraints | |
---|---|---|---|---|---|
Input | Elevation | Grid (input) | DEM | - | - |
Output | MRVBF | Grid (output) | MRVBF | - | - |
MRRTF | Grid (output) | MRRTF | - | - | |
Options | Grid System | Grid system | PARAMETERS_GRID_SYSTEM | - | - |
Initial Threshold for Slope | Floating point | T_SLOPE | - | Minimum: 0.000000 Maximum: 100.000000 Default: 16.000000 | |
Threshold for Elevation Percentile (Lowness) | Floating point | T_PCTL_V | - | Minimum: 0.000000 Maximum: 1.000000 Default: 0.400000 | |
Threshold for Elevation Percentile (Upness) | Floating point | T_PCTL_R | - | Minimum: 0.000000 Maximum: 1.000000 Default: 0.350000 | |
Shape Parameter for Slope | Floating point | P_SLOPE | - | Default: 4.000000 | |
Shape Parameter for Elevation Percentile | Floating point | P_PCTL | - | Default: 3.000000 | |
Update Views | Boolean | UPDATE | - | Default: 1 | |
Classify | Boolean | CLASSIFY | - | Default: 0 | |
Maximum Resolution (Percentage) | Floating point | MAX_RES | Maximum resolution as percentage of the diameter of the DEM. | Minimum: 0.000000 Maximum: 100.000000 Default: 100.000000 |
Command-line
Usage: saga_cmd ta_morphometry 8 [-DEM <str>] [-MRVBF <str>] [-MRRTF <str>] [-T_SLOPE <double>] [-T_PCTL_V <double>] [-T_PCTL_R <double>] [-P_SLOPE <double>] [-P_PCTL <double>] [-UPDATE <str>] [-CLASSIFY <str>] [-MAX_RES <double>] -DEM:<str> Elevation Grid (input) -MRVBF:<str> MRVBF Grid (output) -MRRTF:<str> MRRTF Grid (output) -T_SLOPE:<double> Initial Threshold for Slope Floating point Minimum: 0.000000 Maximum: 100.000000 Default: 16.000000 -T_PCTL_V:<double> Threshold for Elevation Percentile (Lowness) Floating point Minimum: 0.000000 Maximum: 1.000000 Default: 0.400000 -T_PCTL_R:<double> Threshold for Elevation Percentile (Upness) Floating point Minimum: 0.000000 Maximum: 1.000000 Default: 0.350000 -P_SLOPE:<double> Shape Parameter for Slope Floating point Default: 4.000000 -P_PCTL:<double> Shape Parameter for Elevation Percentile Floating point Default: 3.000000 -UPDATE:<str> Update Views Boolean Default: 1 -CLASSIFY:<str> Classify Boolean Default: 0 -MAX_RES:<double> Maximum Resolution (Percentage) Floating point Minimum: 0.000000 Maximum: 100.000000 Default: 100.000000