Multiresolution Index of Valley Bottom Flatness (MRVBF)

Author: O.Conrad (c) 2006
Menu: Terrain Analysis | Morphometry

Description

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.

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Elevation	grid, input	`DEM`	-	-
Output	MRVBF	grid, output	`MRVBF`	-	-
Output	MRRTF	grid, output	`MRRTF`	-	-
Options	Grid System	grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Initial Threshold for Slope	floating point number	`T_SLOPE`	-	Minimum: 0.000000 Maximum: 100.000000 Default: 16.000000
	Threshold for Elevation Percentile (Lowness)	floating point number	`T_PCTL_V`	-	Minimum: 0.000000 Maximum: 1.000000 Default: 0.400000
	Threshold for Elevation Percentile (Upness)	floating point number	`T_PCTL_R`	-	Minimum: 0.000000 Maximum: 1.000000 Default: 0.350000
	Shape Parameter for Slope	floating point number	`P_SLOPE`	-	Default: 4.000000
	Shape Parameter for Elevation Percentile	floating point number	`P_PCTL`	-	Default: 3.000000
	Update Views	boolean	`UPDATE`	-	Default: 1
	Classify	boolean	`CLASSIFY`	-	Default: 0
	Maximum Resolution (Percentage)	floating point number	`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 ] [-MRVBF ] [-MRRTF ] [-T_SLOPE ] [-T_PCTL_V ] [-T_PCTL_R ] [-P_SLOPE ] [-P_PCTL ] [-UPDATE ] [-CLASSIFY ] [-MAX_RES ]
  -DEM:        	Elevation
	grid, input
  -MRVBF:      	MRVBF
	grid, output
  -MRRTF:      	MRRTF
	grid, output
  -T_SLOPE: 	Initial Threshold for Slope
	floating point number
	Minimum: 0.000000
	Maximum: 100.000000
	Default: 16.000000
  -T_PCTL_V:	Threshold for Elevation Percentile (Lowness)
	floating point number
	Minimum: 0.000000
	Maximum: 1.000000
	Default: 0.400000
  -T_PCTL_R:	Threshold for Elevation Percentile (Upness)
	floating point number
	Minimum: 0.000000
	Maximum: 1.000000
	Default: 0.350000
  -P_SLOPE: 	Shape Parameter for Slope
	floating point number
	Default: 4.000000
  -P_PCTL:  	Shape Parameter for Elevation Percentile
	floating point number
	Default: 3.000000
  -UPDATE:     	Update Views
	boolean
	Default: 1
  -CLASSIFY:   	Classify
	boolean
	Default: 0
  -MAX_RES: 	Maximum Resolution (Percentage)
	floating point number
	Minimum: 0.000000
	Maximum: 100.000000
	Default: 100.000000