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