SAGA-GIS Module Library Documentation (v2.1.3)

Module Overland Flow - Kinematic Wave D8

Overland Flow - Kinematic Wave D8

Reference:
Johnson, D.L., Miller, A.C. (1997): A spatially distributed hydrological model utilizing raster data structures, Computers & Geosciences, Vol.23, No.3, pp.267-272

Parameters

 NameTypeIdentifierDescriptionConstraints
InputElevationGrid (input)DEM--
Gauges (*)Shapes (optional input)GAUGES--
OutputRunoffGrid (output)FLOW--
Flow at Gauges (*)Table (optional output)GAUGES_FLOW--
OptionsSimulation Time [h]Floating pointTIME_SPAN-Minimum: 0.000000
Default: 24.000000
Simulation Time Step [h]Floating pointTIME_STEP-Minimum: 0.000000
Default: 0.100000
Manning's RoughnessFloating pointROUGHNESS-Minimum: 0.000000
Default: 0.030000
Max. IterationsIntegerNEWTON_MAXITER-Minimum: 1
Default: 100
EpsilonFloating pointNEWTON_EPSILON-Minimum: 0.000000
Default: 0.000100
PrecipitationChoicePRECIPKind of initializing Precipitation EventAvailable Choices:
[0] Homogenous
[1] Above Elevation
[2] Left Half
Default: 0
Threshold ElevationFloating pointTHRESHOLD-Default: 0.000000
(*) optional

Command-line

Usage: saga_cmd sim_hydrology 1 -DEM <str> [-FLOW <str>] [-GAUGES <str>] [-GAUGES_FLOW <str>] [-TIME_SPAN <str>] [-TIME_STEP <str>] [-ROUGHNESS <str>] [-NEWTON_MAXITER <num>] [-NEWTON_EPSILON <str>] [-PRECIP <str>] [-THRESHOLD <str>]
  -DEM:<str>           	Elevation
	Grid (input)
  -FLOW:<str>          	Runoff
	Grid (output)
  -GAUGES:<str>        	Gauges
	Shapes (optional input)
  -GAUGES_FLOW:<str>   	Flow at Gauges
	Table (optional output)
  -TIME_SPAN:<str>     	Simulation Time [h]
	Floating point
	Minimum: 0.000000
	Default: 24.000000
  -TIME_STEP:<str>     	Simulation Time Step [h]
	Floating point
	Minimum: 0.000000
	Default: 0.100000
  -ROUGHNESS:<str>     	Manning's Roughness
	Floating point
	Minimum: 0.000000
	Default: 0.030000
  -NEWTON_MAXITER:<num>	Max. Iterations
	Integer
	Minimum: 1
	Default: 100
  -NEWTON_EPSILON:<str>	Epsilon
	Floating point
	Minimum: 0.000000
	Default: 0.000100
  -PRECIP:<str>        	Precipitation
	Choice
	Available Choices:
	[0] Homogenous
	[1] Above Elevation
	[2] Left Half
	Default: 0
  -THRESHOLD:<str>     	Threshold Elevation
	Floating point
	Default: 0.000000