net.simplace.sim.components.management.SimpleIrrigation

Applies irrigation by using table values - designed to use Lintul5 irrigation tables

Irrigation has to be provided as an array cIRRTAB, where the entries containing DOY of irrigation alternate with entries containing corresponding irrigation amount: .

E. g.:

DOY	50	180	320
Amount	130.5	120	127.3

has to be provided as array

130.5

180

120

320

127.3

This is the way interpolation tables are handled in FST (see also FSTFunctions). Lintul5 uses this mechanism for irrigation.

AppliedIrrDepth takes then on each DOY in cIRRTAB the corresponding value. If the DOY is not in the table then AppliedIrrDepth is 0.

The applied irrigation volumes are added to the input variable iRAIN and the sum is output in the output variable RainAndIrrigation

In order to avoid unproductive rainfall run-off at the days of irrigation, the user can specify the amount of rain cMaxRainWithoutRunoff below which no surface run-off can occur (default is 0.0 mm d-1). Only if iRAIN exceeds this threshold cMaxRainWithoutRunoff at any day with irrigation, then CalculateRunoff is set to true.

Component Variables

Content Type	Name	Description	Data Type	Unit	Min Value	Max Value	Default Value
constant	cIRRTAB	table with effective applications of irrigation water as function of day number (DOY)	DOUBLEARRAY	mm/d	-	-	-
constant	cMaxRainWithoutRunoff	maximum precipitation at which no runoff is calculated	DOUBLE	mm/d	-	-	0.0
input	iRAIN	precipitation	DOUBLE	mm/d	-	-	0.0
out	AppliedIrrDepth	daily applied depth of irrigation	DOUBLE	mm/d	-	-	0.0
out	CalculateRunoff	-	BOOLEAN		-	-	true
out	RainAndIrrigation	precipitation + irrigation	DOUBLE	mm/d	-	-	0.0

public class SimpleIrrigation extends net.simplace.sim.model.FWSimComponent {
// Public Constructors
public SimpleIrrigation(String aName, HashMap aFieldMap, HashMap aInputMap,
Element aSimComponentElement, FWSimVarMap aVarMap, int aOrderNumber);
public SimpleIrrigation();

// Public Instance Methods

public HashMap createVariables(); // Defines
net.simplace.sim.model.FWSimComponent

// Protected Instance Methods

protected void init(); // Defines net.simplace.sim.model.FWSimComponent

protected void process(); // Defines net.simplace.sim.model.FWSimComponent

protected FWSimComponent clone(FWSimVarMap aVarMap);
// Defines net.simplace.sim.model.FWSimComponent

creates a clone from this SimComponent for use in other threads

}

Hierarchy: java.lang.Object - net.simplace.sim.model.FWSimComponent (net.simplace.sim.util.FWSimFieldContainer) - SimpleIrrigation