Diffuse Pollution Risk

Author: Cosima Berger, Olaf Conrad (c) 2014
Menu: Simulation | Hydrology

Description

Diffuse Pollution Risk Mapping. This tool tries to reproduce in parts the methodology of the SCIMAP - Diffuse Pollution Risk Mapping - Framework.

References

SCIMAP - Diffuse Pollution Risk Mapping-Framework
Lane, S.N.; Brookes, C.J.; Kirkby, M.J.; Holden, J. (2004): A network-index-based version of TOPMODEL for use with high-resolution digital topographic data. In: Hydrological processes. Vol. 18, S. 191-201.
Milledge, D.G.; Lane, N.S.; Heathwait, A.L.; Reaney, S.M. (2012): A monte carlo approach to the invers problem of diffuse pollution risk in agricultural catchments. In: Science of the Total Environment. Vol. 433, S. 434-449.

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Elevation	grid, input	`DEM`	-	-
	Channel Network	grid, input, optional	`CHANNEL`	-	-
	Land Cover Weights	grid, input, optional	`WEIGHT`	-	-
	Rainfall	grid, input, optional	`RAIN`	-	-
Output	Delivery Index	grid, output	`DELIVERY`	-	-
	Locational Risk	grid, output	`RISK_POINT`	-	-
	Diffuse Pollution Risk	grid, output	`RISK_DIFFUSE`	-	-
Options	Grid System	grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Default	floating point number	`WEIGHT_DEFAULT`	default value if no grid has been selected	Minimum: 0.000000 Default: 1.000000
	Default	floating point number	`RAIN_DEFAULT`	default value if no grid has been selected	Minimum: 0.000000 Default: 500.000000
	Flow Routing	choice	`METHOD`	-	Available Choices: [0] D8 [1] MFD Default: 1
	Channel Initiation Threshold	integer number	`CHANNEL_START`	minimum number of upslope contributing cells to start a channel	Minimum: 1 Default: 150

Command Line

Usage: saga_cmd sim_hydrology 4 [-DEM ] [-CHANNEL ] [-WEIGHT ] [-WEIGHT_DEFAULT ] [-RAIN ] [-RAIN_DEFAULT ] [-DELIVERY ] [-RISK_POINT ] [-RISK_DIFFUSE ] [-METHOD ] [-CHANNEL_START ]
  -DEM:              	Elevation
	grid, input
  -CHANNEL:          	Channel Network
	grid, input, optional
  -WEIGHT:           	Land Cover Weights
	grid, input, optional
  -WEIGHT_DEFAULT:	Default
	floating point number
	Minimum: 0.000000
	Default: 1.000000
  -RAIN:             	Rainfall
	grid, input, optional
  -RAIN_DEFAULT:  	Default
	floating point number
	Minimum: 0.000000
	Default: 500.000000
  -DELIVERY:         	Delivery Index
	grid, output
  -RISK_POINT:       	Locational Risk
	grid, output
  -RISK_DIFFUSE:     	Diffuse Pollution Risk
	grid, output
  -METHOD:           	Flow Routing
	choice
	Available Choices:
	[0] D8
	[1] MFD
	Default: 1
  -CHANNEL_START:    	Channel Initiation Threshold
	integer number
	Minimum: 1
	Default: 150