Package net.simplace.sim.components.experimental.amei.lintul5

Class RadiationUseEfficiency

java.lang.Object

net.simplace.sim.model.FWSimComponent

net.simplace.sim.components.experimental.amei.lintul5.RadiationUseEfficiency

All Implemented Interfaces:

net.simplace.sim.util.FWSimFieldContainer

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

Lintul5 - Simple generic model for crop growth simulation - RUE part

Introduction

The SimComponents in the package lintul5 implement the Lintul5 algorithms from (L5). They are designed to reproduce same results (up to rounding errors) as the original FST program.

The original model is subdivided into multiple SimComponents (which should be used in the following order to be as close as possible to the original algorithm).

1. Irradiation
2. PotentialEvapoTranspiration
3. WaterBalance
4. Phenology
5. RadiationUseEfficiency
6. Lintul5

Daylength calculation is performed by the transformer component AstronomicParametersTransformer.

RadiationUseEfficiency component calculates the radiation use efficiency.

Description

The component calculates radiation use efficiency as well as Co2 and temperature correction factor. Calculations taken from original's CROPP() routine.

It takes inputs from the SimComponent Phenology.

It's outputs are used by Lintul5.

For documentation of the algorithms please consult the original documentation (L5)

Changes to original

Customizable calculation of day temp

Calculation of used temperature is made customizable by a variable cDayTempFactor. $$ \begin{eqnarray} DTemp & = & TMAX - cDayTempFactor \cdot (TMAX - TMIN) \\ \label{dtemp} & = & (1-cDayTempFactor) \cdot TMAX + (cDayTempFactor)\cdot TMIN \end{eqnarray} $$

• The default value for cDayTempFactor is 0.25, so $DTemp$ equals the daytemp.
• If the factor is 0.5, then $DTemp$ equals the mean temperature.
• If the factor is 0.0, then $DTemp$ is the maximum temperature,
• If the factor is 1.0, then it's the minimum temperature.

Scale factors for calibration

As some parameters are given as interpolation tables, there have been added additional scale factors to make these values changeable for calibrations:

• cScaleFactorRUE scales the RUE table RUETB

References

• (L5) Joost Wolf, User guide for LINTUL5, Wageningen UR, Wageningen, 2012

Author:

G. Krauss

See Also:

• Irradiation
• PotentialEvapoTranspiration
• WaterBalance
• Phenology
• Lintul5
• AstronomicParametersTransformer

Component Variables

Content Type	Name	Description	Data Type	Unit	Min Value	Max Value	Default Value
constant	cCO	atmosferic CO2 concentration	DOUBLE	ppm	-	-	0.0
constant	cCOTableCo2	CO2 concentration for correction of radiation use efficiency as a function of atmospheric (c.f. COTB)	DOUBLEARRAY	ppm	-	-	40.0 360.0 720.0 1000.0 2000.0
constant	cCOTableFactor	Correction of radiation use efficiency as a function of atmospheric CO2 concentration (c.f. COTB)	DOUBLEARRAY	1	-	-	0.0 1.0 1.35 1.5 1.5
constant	cDayTempFactor	Calculation factor for temperature means T = TMAX - f*(TMAX-TMIN). Default 0.25 gives day temp, 0.5 gives mean temp. See $\eqref{dtemp}$	DOUBLE	1	-	-	0.25
constant	cRUETableDVS	DVS for radiation use efficiency for biomass production (c.f. RUETB)	DOUBLEARRAY	1	-	-	0.0 1.0 1.3 2.0
constant	cRUETableRUE	Radiation use efficiency for biomass production as function of DVS (c.f. RUETB)	DOUBLEARRAY	g/MJ	-	-	3.0 3.0 3.0 0.4
constant	cScaleFactorRUE	Scales the y-values of RUETB (for sensitivity analysis / calibration)	DOUBLE	1	-	-	1.0
constant	cTMNFTableFactor	Reduction factor of RUE as function of low min. temp. (c.f. TMNFTB)	DOUBLEARRAY	1	-	-	0.0 0.0 1.0 1.0
constant	cTMNFTableMinTemperature	Min Temp for reduction factor of RUE (c.f. TMNFTB)	DOUBLEARRAY	°C	-	-	-5.0 0.0 3.0 30.0
constant	cTMPFTableFactor	Reduction factor of RUE as function of mean daytime temp (c.f. TMPFTB)	DOUBLEARRAY	1	-	-	0.0 0.0 0.6 1.0 1.0 0.0 0.0
constant	cTMPFTableMeanTemperature	Mean daytime temp for reduction factor of RUE (c.f. TMPFTB)	DOUBLEARRAY	°C	-	-	-1.0 0.0 10.0 15.0 30.0 35.0 40.0
input	iDVS	initial development stage of crop (from 0 to 2)	DOUBLE	1	-	-	0.0
input	iTMAX	maximal air temperature during day (output of routine WEATHR)	DOUBLE	°C	-	-	0.0
input	iTMIN	minimal air temperature during day (output of routine WEATHR)	DOUBLE	°C	-	-	0.0
out	RTMCO	overall correction factor for RUE in dependence of both CO2 concentration and non-optimal daytime and minimal temperatures	DOUBLE	1	-	-	0.0
out	RUE	radiation use efficiency	DOUBLE	g/MJ	-	-	0.0

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
RadiationUseEfficiency()	Empty constructor used by class.forName()
RadiationUseEfficiency(String aName, HashMap<String,net.simplace.sim.util.FWSimVariable<?>> aFieldMap, HashMap<String,String> aInputMap, org.jdom2.Element aSimComponentElement, net.simplace.sim.util.FWSimVarMap aVarMap, int aOrderNumber)

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()
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()
protected void	process()

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

RadiationUseEfficiency

public RadiationUseEfficiency(String aName,
 HashMap<String,net.simplace.sim.util.FWSimVariable<?>> aFieldMap,
 HashMap<String,String> aInputMap,
 org.jdom2.Element aSimComponentElement,
 net.simplace.sim.util.FWSimVarMap aVarMap,
 int aOrderNumber)

Parameters:

aName -

aFieldMap -

aInputMap -

aSimComponentElement -

aVarMap -

aOrderNumber -

RadiationUseEfficiency

public RadiationUseEfficiency()

Empty constructor used by class.forName()

Method Details

createVariables

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

Specified by:

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

Specified by:

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

See Also:

• FWSimComponent.createVariables()

init

protected void init()

Specified by:

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

See Also:

• FWSimComponent.init()

process

protected void process()

Specified by:

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

See Also:

• 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

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:

• FWSimComponent.clone(net.simplace.sim.util.FWSimVarMap)