SAGA-GIS Module Library Documentation (v2.2.2)

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

Parameters

 NameTypeIdentifierDescriptionConstraints
InputElevationGrid (input)DEM--
OutputMRVBFGrid (output)MRVBF--
MRRTFGrid (output)MRRTF--
OptionsInitial Threshold for SlopeFloating pointT_SLOPE-Minimum: 0.000000
Maximum: 100.000000
Default: 16.000000
Threshold for Elevation Percentile (Lowness)Floating pointT_PCTL_V-Minimum: 0.000000
Maximum: 1.000000
Default: 0.400000
Threshold for Elevation Percentile (Upness)Floating pointT_PCTL_R-Minimum: 0.000000
Maximum: 1.000000
Default: 0.350000
Shape Parameter for SlopeFloating pointP_SLOPE-Default: 4.000000
Shape Parameter for Elevation PercentileFloating pointP_PCTL-Default: 3.000000
Update ViewsBooleanUPDATE-Default: 1
ClassifyBooleanCLASSIFY-Default: 0
Maximum Resolution (Percentage)Floating pointMAX_RESMaximum 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