SAGA-GIS Tool Library Documentation (v9.1.2)

Tool Channel Network and Drainage Basins

Deterministic 8 based flow network analysis.

Parameters

 NameTypeIdentifierDescriptionConstraints
InputElevationGrid, inputDEM--
OutputFlow Direction (*)Grid, output, optionalDIRECTION--
Flow Connectivity (*)Grid, output, optionalCONNECTION--
Strahler Order (*)Grid, output, optionalORDER--
Drainage Basins (*)Grid, output, optionalBASIN--
ChannelsShapes, outputSEGMENTS--
Drainage BasinsShapes, outputBASINS--
Junctions (*)Shapes, output, optionalNODES--
OptionsGrid SystemGrid systemPARAMETERS_GRID_SYSTEM--
ThresholdIntegerTHRESHOLDStrahler order to begin a channel.Minimum: 1
Default: 5
SubbasinsBooleanSUBBASINS-Default: 1
(*) optional

Command-line

Usage: saga_cmd ta_channels 5 [-DEM <str>] [-DIRECTION <str>] [-CONNECTION <str>] [-ORDER <str>] [-BASIN <str>] [-SEGMENTS <str>] [-BASINS <str>] [-NODES <str>] [-THRESHOLD <num>] [-SUBBASINS <str>]
  -DEM:<str>       	Elevation
	Grid, input
  -DIRECTION:<str> 	Flow Direction
	Grid, output, optional
  -CONNECTION:<str>	Flow Connectivity
	Grid, output, optional
  -ORDER:<str>     	Strahler Order
	Grid, output, optional
  -BASIN:<str>     	Drainage Basins
	Grid, output, optional
  -SEGMENTS:<str>  	Channels
	Shapes, output
  -BASINS:<str>    	Drainage Basins
	Shapes, output
  -NODES:<str>     	Junctions
	Shapes, output, optional
  -THRESHOLD:<num> 	Threshold
	Integer
	Minimum: 1
	Default: 5
  -SUBBASINS:<str> 	Subbasins
	Boolean
	Default: 1