SAGA-GIS Module Library Documentation (v2.1.3)

Module Fuzzy Landform Element Classification

Algorithm for derivation of form elements acording to slope, maximum curvature, minimum curvature, profile curvature, tangential curvature, based on a linear semantic import model for slope and curvature and a fuzzy classification Based on the AML script 'felementf' by Jochen Schmidt, Landcare Research.

Parameters

 NameTypeIdentifierDescriptionConstraints
InputSlopeGrid (input)SLOPE--
Minimum CurvatureGrid (input)MINCURV--
Maximum CurvatureGrid (input)MAXCURV--
Profile CurvatureGrid (input)PCURV--
Tangential CurvatureGrid (input)TCURV--
OutputPlain (*)Grid (optional output)PLAIN--
Pit (*)Grid (optional output)PIT--
Peak (*)Grid (optional output)PEAK--
Ridge (*)Grid (optional output)RIDGE--
Channel (*)Grid (optional output)CHANNEL--
Saddle (*)Grid (optional output)SADDLE--
Back Slope (*)Grid (optional output)BSLOPE--
Foot Slope (*)Grid (optional output)FSLOPE--
Shoulder Slope (*)Grid (optional output)SSLOPE--
Hollow (*)Grid (optional output)HOLLOW--
Foot Hollow (*)Grid (optional output)FHOLLOW--
Shoulder Hollow (*)Grid (optional output)SHOLLOW--
Spur (*)Grid (optional output)SPUR--
Foot Spur (*)Grid (optional output)FSPUR--
Shoulder Spur (*)Grid (optional output)SSPUR--
LandformGrid (output)FORM--
Maximum MembershipGrid (output)MEM--
EntropyGrid (output)ENTROPY--
Confusion IndexGrid (output)CI--
OptionsSlope Grid UnitsChoiceSLOPETODEG-Available Choices:
[0] degree
[1] radians
Default: 0
Slope Thresholds [Degree]Value rangeT_SLOPElower and upper thresholds for semantic import model, planar vs. sloped areas-
Curvature Thresholds [1 / m]Value rangeT_CURVElower and upper thresholds for semantic import model, straight vs. curved areas-
(*) optional

Command-line

Usage: saga_cmd ta_morphometry 25 -SLOPE <str> -MINCURV <str> -MAXCURV <str> -PCURV <str> -TCURV <str> [-PLAIN <str>] [-PIT <str>] [-PEAK <str>] [-RIDGE <str>] [-CHANNEL <str>] [-SADDLE <str>] [-BSLOPE <str>] [-FSLOPE <str>] [-SSLOPE <str>] [-HOLLOW <str>] [-FHOLLOW <str>] [-SHOLLOW <str>] [-SPUR <str>] [-FSPUR <str>] [-SSPUR <str>] [-FORM <str>] [-MEM <str>] [-ENTROPY <str>] [-CI <str>] [-SLOPETODEG <str>] [-T_SLOPE_MIN <str>] [-T_SLOPE_MAX <str>] [-T_CURVE_MIN <str>] [-T_CURVE_MAX <str>]
  -SLOPE:<str>      	Slope
	Grid (input)
  -MINCURV:<str>    	Minimum Curvature
	Grid (input)
  -MAXCURV:<str>    	Maximum Curvature
	Grid (input)
  -PCURV:<str>      	Profile Curvature
	Grid (input)
  -TCURV:<str>      	Tangential Curvature
	Grid (input)
  -PLAIN:<str>      	Plain
	Grid (optional output)
  -PIT:<str>        	Pit
	Grid (optional output)
  -PEAK:<str>       	Peak
	Grid (optional output)
  -RIDGE:<str>      	Ridge
	Grid (optional output)
  -CHANNEL:<str>    	Channel
	Grid (optional output)
  -SADDLE:<str>     	Saddle
	Grid (optional output)
  -BSLOPE:<str>     	Back Slope
	Grid (optional output)
  -FSLOPE:<str>     	Foot Slope
	Grid (optional output)
  -SSLOPE:<str>     	Shoulder Slope
	Grid (optional output)
  -HOLLOW:<str>     	Hollow
	Grid (optional output)
  -FHOLLOW:<str>    	Foot Hollow
	Grid (optional output)
  -SHOLLOW:<str>    	Shoulder Hollow
	Grid (optional output)
  -SPUR:<str>       	Spur
	Grid (optional output)
  -FSPUR:<str>      	Foot Spur
	Grid (optional output)
  -SSPUR:<str>      	Shoulder Spur
	Grid (optional output)
  -FORM:<str>       	Landform
	Grid (output)
  -MEM:<str>        	Maximum Membership
	Grid (output)
  -ENTROPY:<str>    	Entropy
	Grid (output)
  -CI:<str>         	Confusion Index
	Grid (output)
  -SLOPETODEG:<str> 	Slope Grid Units
	Choice
	Available Choices:
	[0] degree
	[1] radians
	Default: 0
  -T_SLOPE_MIN:<str>	Slope Thresholds [Degree]
	Value range
  -T_SLOPE_MAX:<str>	Slope Thresholds [Degree]
	Value range
  -T_CURVE_MIN:<str>	Curvature Thresholds [1 / m]
	Value range
  -T_CURVE_MAX:<str>	Curvature Thresholds [1 / m]
	Value range