Module 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
- Author: (c) 2006 by O.Conrad
- Specification: grid
- 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 | 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 <str>] [-T_PCTL_V <str>] [-T_PCTL_R <str>] [-P_SLOPE <str>] [-P_PCTL <str>] [-UPDATE <str>] [-CLASSIFY <str>] [-MAX_RES <str>]
-DEM:<str> Elevation
Grid (input)
-MRVBF:<str> MRVBF
Grid (output)
-MRRTF:<str> MRRTF
Grid (output)
-T_SLOPE:<str> Initial Threshold for Slope
Floating point
Minimum: 0.000000
Maximum: 100.000000
Default: 16.000000
-T_PCTL_V:<str> Threshold for Elevation Percentile (Lowness)
Floating point
Minimum: 0.000000
Maximum: 1.000000
Default: 0.400000
-T_PCTL_R:<str> Threshold for Elevation Percentile (Upness)
Floating point
Minimum: 0.000000
Maximum: 1.000000
Default: 0.350000
-P_SLOPE:<str> Shape Parameter for Slope
Floating point
Default: 4.000000
-P_PCTL:<str> 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:<str> Maximum Resolution (Percentage)
Floating point
Minimum: 0.000000
Maximum: 100.000000
Default: 100.000000