SAGA 9.4.2 | Tool Library Documentation

Fuzzy Landform Element Classification


Description

Algorithm for derivation of form elements according 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.


References


Parameters

 NameTypeIdentifierDescriptionConstraints
InputElevationgrid, inputELEVATION--
Slopegrid, inputSLOPE--
Minimum Curvaturegrid, inputMINCURV--
Maximum Curvaturegrid, inputMAXCURV--
Profile Curvaturegrid, inputPCURV--
Tangential Curvaturegrid, inputTCURV--
OutputLandformgrid, outputFORM--
Maximum Membershipgrid, output, optionalMEM--
Entropygrid, output, optionalENTROPY--
Confusion Indexgrid, output, optionalCI--
Plaingrid, output, optionalPLAIN--
Pitgrid, output, optionalPIT--
Peakgrid, output, optionalPEAK--
Ridgegrid, output, optionalRIDGE--
Channelgrid, output, optionalCHANNEL--
Saddlegrid, output, optionalSADDLE--
Back Slopegrid, output, optionalBSLOPE--
Foot Slopegrid, output, optionalFSLOPE--
Shoulder Slopegrid, output, optionalSSLOPE--
Hollowgrid, output, optionalHOLLOW--
Foot Hollowgrid, output, optionalFHOLLOW--
Shoulder Hollowgrid, output, optionalSHOLLOW--
Spurgrid, output, optionalSPUR--
Foot Spurgrid, output, optionalFSPUR--
Shoulder Spurgrid, output, optionalSSPUR--
OptionsGrid Systemgrid systemPARAMETERS_GRID_SYSTEM--
InputchoiceINPUTif elevation is selected, slopes and curvatures will be calculated internallyAvailable Choices: [0] elevation [1] slope and curvatures Default: 0
MembershipsbooleanMEMBERSHIP-Default: 0
Slope 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 [1000 / m]value rangeT_CURVElower and upper thresholds for semantic import model, straight vs. curved areas-

Command Line


Usage: saga_cmd ta_morphometry 25 [-ELEVATION ] [-SLOPE ] [-MINCURV ] [-MAXCURV ] [-PCURV ] [-TCURV ] [-FORM ] [-MEM ] [-ENTROPY ] [-CI ] [-PLAIN ] [-PIT ] [-PEAK ] [-RIDGE ] [-CHANNEL ] [-SADDLE ] [-BSLOPE ] [-FSLOPE ] [-SSLOPE ] [-HOLLOW ] [-FHOLLOW ] [-SHOLLOW ] [-SPUR ] [-FSPUR ] [-SSPUR ] [-INPUT ] [-MEMBERSHIP ] [-SLOPETODEG ] [-T_SLOPE_MIN ] [-T_SLOPE_MAX ] [-T_CURVE_MIN ] [-T_CURVE_MAX ]
  -ELEVATION:     	Elevation
	grid, input
  -SLOPE:         	Slope
	grid, input
  -MINCURV:       	Minimum Curvature
	grid, input
  -MAXCURV:       	Maximum Curvature
	grid, input
  -PCURV:         	Profile Curvature
	grid, input
  -TCURV:         	Tangential Curvature
	grid, input
  -FORM:          	Landform
	grid, output
  -MEM:           	Maximum Membership
	grid, output, optional
  -ENTROPY:       	Entropy
	grid, output, optional
  -CI:            	Confusion Index
	grid, output, optional
  -PLAIN:         	Plain
	grid, output, optional
  -PIT:           	Pit
	grid, output, optional
  -PEAK:          	Peak
	grid, output, optional
  -RIDGE:         	Ridge
	grid, output, optional
  -CHANNEL:       	Channel
	grid, output, optional
  -SADDLE:        	Saddle
	grid, output, optional
  -BSLOPE:        	Back Slope
	grid, output, optional
  -FSLOPE:        	Foot Slope
	grid, output, optional
  -SSLOPE:        	Shoulder Slope
	grid, output, optional
  -HOLLOW:        	Hollow
	grid, output, optional
  -FHOLLOW:       	Foot Hollow
	grid, output, optional
  -SHOLLOW:       	Shoulder Hollow
	grid, output, optional
  -SPUR:          	Spur
	grid, output, optional
  -FSPUR:         	Foot Spur
	grid, output, optional
  -SSPUR:         	Shoulder Spur
	grid, output, optional
  -INPUT:         	Input
	choice
	Available Choices:
	[0] elevation
	[1] slope and curvatures
	Default: 0
  -MEMBERSHIP:    	Memberships
	boolean
	Default: 0
  -SLOPETODEG:    	Slope Grid Units
	choice
	Available Choices:
	[0] degree
	[1] radians
	Default: 0
  -T_SLOPE_MIN:	Slope Thresholds [Degree]
	value range
  -T_SLOPE_MAX:	Slope Thresholds [Degree]
	value range
  -T_CURVE_MIN:	Curvature Thresholds [1000 / m]
	value range
  -T_CURVE_MAX:	Curvature Thresholds [1000 / m]
	value range