Module net.finmath.lib

Package net.finmath.climate.models.dice.submodels

Class EvolutionOfCarbonConcentration

java.lang.Object

net.finmath.climate.models.dice.submodels.EvolutionOfCarbonConcentration

All Implemented Interfaces:

TriFunction<Integer,CarbonConcentration3DScalar,Double,CarbonConcentration3DScalar>

public class EvolutionOfCarbonConcentration
extends Object
implements TriFunction<Integer,CarbonConcentration3DScalar,Double,CarbonConcentration3DScalar>

The evolution of the carbon concentration M with a given emission E \( \mathrm{d}M(t) = \left( \Gamma_{M} M(t) + E(t) \right) \mathrm{d}t \). The unit of \( M \) is GtC (Gigatons of Carbon). The evolution is modelled as \( \mathrm{d}M(t) = \left( \Gamma_{M} M(t) + E(t) \right) \mathrm{d}t \right). With the given TimeDiscretization it is approximated via an Euler-step \( M(t_{i+1}) = \Phi M(t_{i}) + unitConversion \cdot E(t_{i}) \Delta t_{i} \) where \( \Phi = (1 + \Gamma_{M} \Delta t_{i}) \). Note: the emission E are in GtCO2/year while the carbon concentration is in M GtC. Unit conversions

• 1 t Carbon = 3.666 t CO2

Author:

Christian Fries

Constructor Summary

Constructors

Constructor	Description
EvolutionOfCarbonConcentration(TimeDiscretization timeDiscretization)
EvolutionOfCarbonConcentration(TimeDiscretization timeDiscretization, Function<Integer,double[][]> transitionMatrices)

Method Summary

Modifier and Type	Method	Description
CarbonConcentration3DScalar	apply(Integer timeIndex, CarbonConcentration3DScalar carbonConcentration, Double emissions)	Update CarbonConcentration over one time step with a given emission.
TimeDiscretization	getTimeDiscretization()

Methods inherited from class java.lang.Object

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

Constructor Details

EvolutionOfCarbonConcentration

public EvolutionOfCarbonConcentration(TimeDiscretization timeDiscretization,
 Function<Integer,double[][]> transitionMatrices)

EvolutionOfCarbonConcentration

public EvolutionOfCarbonConcentration(TimeDiscretization timeDiscretization)

Method Details

apply

public CarbonConcentration3DScalar apply(Integer timeIndex,
 CarbonConcentration3DScalar carbonConcentration,
 Double emissions)

Update CarbonConcentration over one time step with a given emission.

Specified by:

apply in interface TriFunction<Integer,CarbonConcentration3DScalar,Double,CarbonConcentration3DScalar>

Parameters:

carbonConcentration - The CarbonConcentration in time \( t_{i} \)

emissions - The emissions in GtCO2 / year.

getTimeDiscretization

public TimeDiscretization getTimeDiscretization()