Package net.simplace.sim.components.experimental.runoff

Class RunoffCurveNumber_SW

java.lang.Object

net.simplace.sim.model.FWSimComponent

net.simplace.sim.components.experimental.runoff.RunoffCurveNumber_SW

All Implemented Interfaces:

net.simplace.sim.util.FWSimFieldContainer

public class RunoffCurveNumber_SW
extends net.simplace.sim.model.FWSimComponent

Calculates runoff according to the SCS Runoff Curve Number method,

• with optional slope correction to the SWAT2009 model,
• with the retention parameter varying
• either with soil profile water content according to the SWAT2009 model,
• or with depth-weighted soil profile water content according to the EPIC model,
• and with optional retention parameter adjustment in case of frozen soil.

Note: this component can deal with variable layer thicknesses.

Note 2: The frozen soil correction starts if the 2nd soil layer is below 0°C. If layers are thick this may be too deep. This might need further development: take layer 1, or the average of the first 2 layers etc.

References: Cronshey, R., 1986. Urban hydrology for small watersheds (No. TR-55). US Dept. of Agriculture, Soil Conservation Service, Engineering Division. Neitsch, S.L., Arnold, J.G., Kiniry, J.R., Williams, J.R., 2011. Soil & Water Assessment Tool, Theoretical Documentation, Version 2009 (No. TR-406). Sharpley, A.N., Williams, J.R., 1990. EPIC - Erosion/Productivity Impact Calculator (U.S. Department of Agriculture Technical Bulletin No. 1768).

Author:

Roelof Oomen

Component Variables

Content Type	Name	Description	Data Type	Unit	Min Value	Max Value	Default Value
constant	cSlope	Slope (leave out to disable slope correction)	DOUBLE	%	0.0	100.0	-
constant	cSoilLayerDepth	Depth of the bottom of each soil layer after soil layer transformation	DOUBLEARRAY	m	-	-	-
constant	cSoilWaterFieldCapacity	Volumetric soil water content of each layer at field capacity	DOUBLEARRAY	m3/m3	-	-	-
constant	cSoilWaterSaturation	Volumetric soil water content of each layer at saturation (pF0 or 0.0 KPa)	DOUBLEARRAY	m3/m3	-	-	-
constant	cSoilWaterWiltingPoint	Volumetric soil water content of each layer at permanent wilting point	DOUBLEARRAY	m3/m3	-	-	-
constant	cWeighted	Use depth weighted soil soil water.	BOOLEAN	1	-	-	false
input	iCN2	Curve Number for average moisture	DOUBLE	1	30.0	100.0	-
input	iRain	Rainfall	DOUBLE	mm	0.0	1000.0	-
input	iSoilTemperature	Soil temperature per layer for adjusting runoff for frozen ground. Can be left blank.	DOUBLEARRAY	°C	-40.0	80.0	-
input	iTotalWaterContentPerLayer	Total water content in each soil layer (mm)	DOUBLEARRAY	mm	0.0	-	-
out	CN	Curve number after slope, soil moisture, and frozen soil adjustment	DOUBLE	1	0.0	100.0	-
out	RainAdj	Adjusted rain (i.e. minus runoff)	DOUBLE	mm	0.0	1000.0	-
out	Runoff	Runoff	DOUBLE	mm	0.0	10000.0	-
out	S	Retention parameter	DOUBLE	1	0.0	1000.0	-

Nested Class Summary

Nested classes/interfaces inherited from class net.simplace.sim.model.FWSimComponent

net.simplace.sim.model.FWSimComponent.TEST_STATE

Field Summary

Fields inherited from class net.simplace.sim.model.FWSimComponent

iFieldMap, iFrequence, iInputMap, iJexlRule, iMasterComponentGroup, iName, iOrderNumber, isComponentGroup, iSimComponentElement, iSimModel, iVarMap

Constructor Summary

Constructors

Constructor	Description
RunoffCurveNumber_SW()	Empty constructor used by class.forName()

Method Summary

Modifier and Type	Method	Description
protected net.simplace.sim.model.FWSimComponent	clone(net.simplace.sim.util.FWSimVarMap aVarMap)
HashMap<String,net.simplace.sim.util.FWSimVariable<?>>	createVariables()	Create the FWSimVariables as interface for this SimComponent
HashMap<String,net.simplace.sim.util.FWSimVariable<?>>	fillTestVariables(int aParamIndex, net.simplace.sim.model.FWSimComponent.TEST_STATE aDefineOrCheck)	called for single component test to check the components algorithm.
protected void	init()	Initialises the fields by getting input and output FWSimVariables from VarMap
protected void	process()	Process the algorithm and write the results back to VarMap

Methods inherited from class net.simplace.sim.model.FWSimComponent

addVariable, bind, checkCondition, createSimComponent, createSimComponent, createSimComponent, createSimComponent, doProcess, getConstantVariables, getContentType, getCreateFormXML, getDescription, getEditFormXML, getFieldMap, getFrequence, getFrequenceRuleScript, getInputs, getInputVariables, getMasterComponentGroup, getName, getOrderNumber, getOutputVariables, getVariable, getVariableField, getVarMap, initialize, isConditionCheck, isVariableAvailable, performLinks, performLinks, readInputs, removeVariable, reset, runComponentTest, setVariablesDefault, toComponentLinkingXML, toDocXML, toGroupXML, toOutputDefinitionXML, toResourcesDataXML, toResourcesDefinitionXML, toString, toXML, writeVarInfos

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

RunoffCurveNumber_SW

public RunoffCurveNumber_SW()

Empty constructor used by class.forName()

Method Details

createVariables

public HashMap<String,net.simplace.sim.util.FWSimVariable<?>> createVariables()

Create the FWSimVariables as interface for this SimComponent

Specified by:

createVariables in interface net.simplace.sim.util.FWSimFieldContainer

Specified by:

createVariables in class net.simplace.sim.model.FWSimComponent

See Also:

• net.simplace.simulation.model.FWSimComponent#createVariables()

init

protected void init()

Initialises the fields by getting input and output FWSimVariables from VarMap

Specified by:

init in class net.simplace.sim.model.FWSimComponent

See Also:

• net.simplace.simulation.model.FWSimComponent#init()

process

protected void process()

Process the algorithm and write the results back to VarMap

Specified by:

process in class net.simplace.sim.model.FWSimComponent

See Also:

• net.simplace.simulation.model.FWSimComponent#process()

fillTestVariables

public HashMap<String,net.simplace.sim.util.FWSimVariable<?>> fillTestVariables(int aParamIndex,
 net.simplace.sim.model.FWSimComponent.TEST_STATE aDefineOrCheck)

called for single component test to check the components algorithm.

Specified by:

fillTestVariables in class net.simplace.sim.model.FWSimComponent

See Also:

• net.simplace.sim.util.FWSimFieldContainer#fillTestVariables(int aParamIndex, TEST_STATE aDefineOrCheck)

clone

protected net.simplace.sim.model.FWSimComponent clone(net.simplace.sim.util.FWSimVarMap aVarMap)

Specified by:

clone in class net.simplace.sim.model.FWSimComponent

See Also:

• net.simplace.simulation.model.FWSimComponent#clone(net.simplace.simulation.util.FWSimVarMap)