Flow Accumulation (Mass-Flux Method)

Author: O.Conrad (c) 2009
Menu: Terrain Analysis | Hydrology | Flow Accumulation | Alternatives

Description

The Mass-Flux Method (MFM) for the DEM based calculation of flow accumulation as proposed by Gruber and Peckham (2008). !!!UNDER DEVELOPMENT!!! To be done: solving the streamline resolution problem

References

Gruber, S. & Peckham, S. (2008): Land-Surface Parameters and Objects in Hydrology. In: Hengl, T. & Reuter, H.I. [Eds.]: Geomorphometry: Concepts, Software, Applications. Developments in Soil Science, Elsevier, Bd.33, S.293-308. doi:10.1016/S0166-2481(08)00007-X.

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Elevation	grid, input	`DEM`	-	-
Output	Flow Accumulation	grid, output	`AREA`	-	-
	Grids	grid list, output, optional	`QUARTERS_GRIDS`	-	-
	Flow Lines	shapes, output, optional	`FLOW_LINES`	-	-
Options	Grid System	grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Flow Split Method	choice	`METHOD`	-	Available Choices: [0] flow width (original) [1] cell area Default: 0
	Create Quarter Cell Information	boolean	`QUARTERS`	-	Default: 0

Command Line


Usage: saga_cmd ta_hydrology 18 [-DEM ] [-AREA ] [-METHOD ] [-QUARTERS ] [-QUARTERS_GRIDS ] [-FLOW_LINES ]
  -DEM:           	Elevation
	grid, input
  -AREA:          	Flow Accumulation
	grid, output
  -METHOD:        	Flow Split Method
	choice
	Available Choices:
	[0] flow width (original)
	[1] cell area
	Default: 0
  -QUARTERS:      	Create Quarter Cell Information
	boolean
	Default: 0
  -QUARTERS_GRIDS:	Grids
	grid list, output, optional
  -FLOW_LINES:    	Flow Lines
	shapes, output, optional