SAGA-GIS Module Library Documentation (v2.1.3)

Module Burn Stream Network into DEM

Burns a stream network into a Digital Elevation Model (DEM). Stream cells have to be coded with valid data values, all other cells should be set to no data value. First two methods decrease . The third method ensures a steady downstream gradient. An elevation decrease is only applied, if a downstream cell is equally high or higher. You should provide a grid with flow directions for determination of downstream cells. The 'Sink Drainage Route Detection' module offers such flow directions.

Parameters

 NameTypeIdentifierDescriptionConstraints
InputDEMGrid (input)DEM--
StreamsGrid (input)STREAM--
Flow DirectionGrid (input)FLOWDIR--
OutputProcessed DEM (*)Grid (optional output)BURN--
OptionsMethodChoiceMETHOD-Available Choices:
[0] simply decrease cell's value by epsilon
[1] lower cell's value to neighbours minimum value minus epsilon
[2] trace stream network downstream
Default: 0
EpsilonFloating pointEPSILON-Minimum: 0.000000
Default: 1.000000
(*) optional

Command-line

Usage: saga_cmd ta_preprocessor 6 -DEM <str> [-BURN <str>] -STREAM <str> -FLOWDIR <str> [-METHOD <str>] [-EPSILON <str>]
  -DEM:<str>    	DEM
	Grid (input)
  -BURN:<str>   	Processed DEM
	Grid (optional output)
  -STREAM:<str> 	Streams
	Grid (input)
  -FLOWDIR:<str>	Flow Direction
	Grid (input)
  -METHOD:<str> 	Method
	Choice
	Available Choices:
	[0] simply decrease cell's value by epsilon
	[1] lower cell's value to neighbours minimum value minus epsilon
	[2] trace stream network downstream
	Default: 0
  -EPSILON:<str>	Epsilon
	Floating point
	Minimum: 0.000000
	Default: 1.000000