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FrontalForcingsx.cpp
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FrontalForcingsx.cpp
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/*!\file FrontalForcingsx
* \brief: compute ice frontal melting rate
*/
#include "./FrontalForcingsx.h"
#include "../../shared/shared.h"
#include "../../toolkits/toolkits.h"
#include "../../shared/Random/random.h"
void FrontalForcingsx(FemModel* femmodel){/*{{{*/
/*Recover melt_parameterization*/
int melt_parameterization;
femmodel->parameters->FindParam(&melt_parameterization,FrontalForcingsParamEnum);
/*Calculate melting rate*/
switch(melt_parameterization){
case FrontalForcingsDefaultEnum:
break;
case FrontalForcingsRignotarmaEnum:
Thermalforcingarmax(femmodel);
bool isdischargearma;
femmodel->parameters->FindParam(&isdischargearma,FrontalForcingsIsDischargeARMAEnum);
if(isdischargearma==true) Subglacialdischargearmax(femmodel);
/*Do not break here, call IcefrontAreax(),RignotMeltParameterizationx()*/
case FrontalForcingsRignotEnum:
femmodel->IcefrontAreax();
femmodel->RignotMeltParameterizationx();
break;
default:
_error_("Frontal forcings "<<EnumToStringx(melt_parameterization)<<" not supported yet");
}
}/*}}}*/
void Thermalforcingarmax(FemModel* femmodel){/*{{{*/
/*Get time parameters*/
IssmDouble time,dt,starttime,tstep_arma;
femmodel->parameters->FindParam(&time,TimeEnum);
femmodel->parameters->FindParam(&dt,TimesteppingTimeStepEnum);
femmodel->parameters->FindParam(&starttime,TimesteppingStartTimeEnum);
femmodel->parameters->FindParam(&tstep_arma,FrontalForcingsARMATimestepEnum);
/*Determine if this is a time step for the ARMA model*/
bool isstepforarma = false;
#ifndef _HAVE_AD_
if((fmod(time,tstep_arma)<fmod((time-dt),tstep_arma)) || (time<=starttime+dt) || tstep_arma==dt) isstepforarma = true;
#else
_error_("not implemented yet");
#endif
/*Load parameters*/
bool isstochastic;
bool istfstochastic = false;
int M,N,arorder,maorder,numbasins,numparams,numbreaks,nummonthbreaks,my_rank;
femmodel->parameters->FindParam(&numbasins,FrontalForcingsNumberofBasinsEnum);
femmodel->parameters->FindParam(&numparams,FrontalForcingsNumberofParamsEnum);
femmodel->parameters->FindParam(&numbreaks,FrontalForcingsNumberofBreaksEnum);
femmodel->parameters->FindParam(&nummonthbreaks,FrontalForcingsNumberofMonthBreaksEnum);
femmodel->parameters->FindParam(&arorder,FrontalForcingsARMAarOrderEnum);
femmodel->parameters->FindParam(&maorder,FrontalForcingsARMAmaOrderEnum);
IssmDouble* datebreaks = NULL;
IssmDouble* arlagcoefs = NULL;
IssmDouble* malagcoefs = NULL;
IssmDouble* monthlyeff = NULL;
IssmDouble* polyparams = NULL;
IssmDouble* monthdatebreaks = NULL;
IssmDouble* monthintercepts = NULL;
IssmDouble* monthtrends = NULL;
femmodel->parameters->FindParam(&datebreaks,&M,&N,FrontalForcingsARMAdatebreaksEnum); _assert_(M==numbasins); _assert_(N==max(numbreaks,1));
femmodel->parameters->FindParam(&polyparams,&M,&N,FrontalForcingsARMApolyparamsEnum); _assert_(M==numbasins); _assert_(N==(numbreaks+1)*numparams);
femmodel->parameters->FindParam(&arlagcoefs,&M,&N,FrontalForcingsARMAarlagcoefsEnum); _assert_(M==numbasins); _assert_(N==arorder);
femmodel->parameters->FindParam(&malagcoefs,&M,&N,FrontalForcingsARMAmalagcoefsEnum); _assert_(M==numbasins); _assert_(N==maorder);
femmodel->parameters->FindParam(&monthdatebreaks,&M,&N,FrontalForcingsARMAmonthdatebreaksEnum); _assert_(M==numbasins); _assert_(N==max(nummonthbreaks,1));
femmodel->parameters->FindParam(&monthintercepts,&M,&N,FrontalForcingsARMAmonthinterceptsEnum); _assert_(M==numbasins); _assert_(N==12*(nummonthbreaks+1));
femmodel->parameters->FindParam(&monthtrends,&M,&N,FrontalForcingsARMAmonthtrendsEnum); _assert_(M==numbasins); _assert_(N==12*(nummonthbreaks+1));
femmodel->parameters->FindParam(&isstochastic,StochasticForcingIsStochasticForcingEnum);
if(isstochastic){
int numstochasticfields;
int* stochasticfields;
femmodel->parameters->FindParam(&numstochasticfields,StochasticForcingNumFieldsEnum);
femmodel->parameters->FindParam(&stochasticfields,&N,StochasticForcingFieldsEnum); _assert_(N==numstochasticfields);
for(int i=0;i<numstochasticfields;i++){
if(stochasticfields[i]==FrontalForcingsRignotarmaEnum) istfstochastic = true;
}
xDelete<int>(stochasticfields);
}
/*Loop over each element to compute Thermal Forcing at vertices*/
for(Object* &object:femmodel->elements->objects){
Element* element = xDynamicCast<Element*>(object);
/*Compute ARMA*/
element->ArmaProcess(isstepforarma,arorder,maorder,numparams,numbreaks,tstep_arma,polyparams,arlagcoefs,malagcoefs,datebreaks,istfstochastic,FrontalForcingsRignotarmaEnum);
/*Compute monthly effects*/
element->MonthlyPiecewiseLinearEffectBasin(nummonthbreaks,monthintercepts,monthtrends,monthdatebreaks,FrontalForcingsRignotarmaEnum);
}
/*Cleanup*/
xDelete<IssmDouble>(arlagcoefs);
xDelete<IssmDouble>(malagcoefs);
xDelete<IssmDouble>(monthlyeff);
xDelete<IssmDouble>(polyparams);
xDelete<IssmDouble>(datebreaks);
xDelete<IssmDouble>(monthdatebreaks);
xDelete<IssmDouble>(monthintercepts);
xDelete<IssmDouble>(monthtrends);
}/*}}}*/
void Subglacialdischargearmax(FemModel* femmodel){/*{{{*/
/*Get time parameters*/
IssmDouble time,dt,starttime,tstep_arma;
femmodel->parameters->FindParam(&time,TimeEnum);
femmodel->parameters->FindParam(&dt,TimesteppingTimeStepEnum);
femmodel->parameters->FindParam(&starttime,TimesteppingStartTimeEnum);
femmodel->parameters->FindParam(&tstep_arma,FrontalForcingsSdARMATimestepEnum);
/*Determine if this is a time step for the ARMA model*/
bool isstepforarma = false;
#ifndef _HAVE_AD_
if((fmod(time,tstep_arma)<fmod((time-dt),tstep_arma)) || (time<=starttime+dt) || tstep_arma==dt) isstepforarma = true;
#else
_error_("not implemented yet");
#endif
/*Load parameters*/
bool isstochastic;
bool isdischargestochastic = false;
int M,N,arorder,maorder,numbasins,numparams,numbreaks,my_rank;
femmodel->parameters->FindParam(&numbasins,FrontalForcingsNumberofBasinsEnum);
femmodel->parameters->FindParam(&numparams,FrontalForcingsSdNumberofParamsEnum);
femmodel->parameters->FindParam(&numbreaks,FrontalForcingsSdNumberofBreaksEnum);
femmodel->parameters->FindParam(&arorder,FrontalForcingsSdarOrderEnum);
femmodel->parameters->FindParam(&maorder,FrontalForcingsSdmaOrderEnum);
IssmDouble* datebreaks = NULL;
IssmDouble* arlagcoefs = NULL;
IssmDouble* malagcoefs = NULL;
IssmDouble* monthlyfrac = NULL;
IssmDouble* polyparams = NULL;
femmodel->parameters->FindParam(&datebreaks,&M,&N,FrontalForcingsSddatebreaksEnum); _assert_(M==numbasins); _assert_(N==max(numbreaks,1));
femmodel->parameters->FindParam(&polyparams,&M,&N,FrontalForcingsSdpolyparamsEnum); _assert_(M==numbasins); _assert_(N==(numbreaks+1)*numparams);
femmodel->parameters->FindParam(&arlagcoefs,&M,&N,FrontalForcingsSdarlagcoefsEnum); _assert_(M==numbasins); _assert_(N==arorder);
femmodel->parameters->FindParam(&malagcoefs,&M,&N,FrontalForcingsSdmalagcoefsEnum); _assert_(M==numbasins); _assert_(N==maorder);
femmodel->parameters->FindParam(&monthlyfrac,&M,&N,FrontalForcingsSdMonthlyFracEnum); _assert_(M==numbasins); _assert_(N==12);
femmodel->parameters->FindParam(&isstochastic,StochasticForcingIsStochasticForcingEnum);
if(isstochastic){
int numstochasticfields;
int* stochasticfields;
femmodel->parameters->FindParam(&numstochasticfields,StochasticForcingNumFieldsEnum);
femmodel->parameters->FindParam(&stochasticfields,&N,StochasticForcingFieldsEnum); _assert_(N==numstochasticfields);
for(int i=0;i<numstochasticfields;i++){
if(stochasticfields[i]==FrontalForcingsSubglacialDischargearmaEnum) isdischargestochastic = true;
}
xDelete<int>(stochasticfields);
}
/*Loop over each element to compute Subglacial Discharge at vertices*/
for(Object* &object:femmodel->elements->objects){
Element* element = xDynamicCast<Element*>(object);
/*Compute ARMA*/
element->ArmaProcess(isstepforarma,arorder,maorder,numparams,numbreaks,tstep_arma,polyparams,arlagcoefs,malagcoefs,datebreaks,isdischargestochastic,FrontalForcingsSubglacialDischargearmaEnum);
/*Scale with monthly fractions*/
element->MonthlyFactorBasin(monthlyfrac,FrontalForcingsSubglacialDischargearmaEnum);
}
/*Cleanup*/
xDelete<IssmDouble>(arlagcoefs);
xDelete<IssmDouble>(malagcoefs);
xDelete<IssmDouble>(monthlyfrac);
xDelete<IssmDouble>(polyparams);
xDelete<IssmDouble>(datebreaks);
}/*}}}*/