[17085] | 1 | /*!\file SurfaceMassBalancex
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[23366] | 2 | * \brief: calculates SMB
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[17085] | 3 | */
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| 4 |
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[26479] | 5 | #include <config.h>
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[17085] | 6 | #include "./SurfaceMassBalancex.h"
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| 7 | #include "../../shared/shared.h"
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| 8 | #include "../../toolkits/toolkits.h"
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[23814] | 9 | #include "../modules.h"
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[25379] | 10 | #include "../../classes/Inputs/TransientInput.h"
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[26477] | 11 | #include "../../shared/Random/random.h"
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[17085] | 12 |
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[23814] | 13 | void SmbForcingx(FemModel* femmodel){/*{{{*/
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| 14 |
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| 15 | // void SmbForcingx(smb,ni){
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| 16 | // INPUT parameters: ni: working size of arrays
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| 17 | // OUTPUT: mass-balance (m/yr ice): agd(NA)
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| 18 |
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| 19 | }/*}}}*/
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[17085] | 20 | void SmbGradientsx(FemModel* femmodel){/*{{{*/
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| 21 |
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| 22 | // void SurfaceMassBalancex(hd,agd,ni){
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| 23 | // INPUT parameters: ni: working size of arrays
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| 24 | // INPUT: surface elevation (m): hd(NA)
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| 25 | // OUTPUT: mass-balance (m/yr ice): agd(NA)
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[18001] | 26 | int v;
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| 27 | IssmDouble rho_water; // density of fresh water
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| 28 | IssmDouble rho_ice; // density of ice
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[21469] | 29 | IssmDouble yts; // conversion factor year to second
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[17085] | 30 |
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[18001] | 31 | /*Loop over all the elements of this partition*/
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[25539] | 32 | for(Object* & object : femmodel->elements->objects){
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| 33 | Element* element=xDynamicCast<Element*>(object);
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[18001] | 34 |
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| 35 | /*Allocate all arrays*/
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| 36 | int numvertices = element->GetNumberOfVertices();
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| 37 | IssmDouble* Href = xNew<IssmDouble>(numvertices); // reference elevation from which deviations are used to calculate the SMB adjustment
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| 38 | IssmDouble* Smbref = xNew<IssmDouble>(numvertices); // reference SMB to which deviations are added
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| 39 | IssmDouble* b_pos = xNew<IssmDouble>(numvertices); // Hs-SMB relation parameter
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| 40 | IssmDouble* b_neg = xNew<IssmDouble>(numvertices); // Hs-SMB relation paremeter
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| 41 | IssmDouble* s = xNew<IssmDouble>(numvertices); // surface elevation (m)
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| 42 | IssmDouble* smb = xNew<IssmDouble>(numvertices);
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| 43 |
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| 44 | /*Recover SmbGradients*/
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[19527] | 45 | element->GetInputListOnVertices(Href,SmbHrefEnum);
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| 46 | element->GetInputListOnVertices(Smbref,SmbSmbrefEnum);
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| 47 | element->GetInputListOnVertices(b_pos,SmbBPosEnum);
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| 48 | element->GetInputListOnVertices(b_neg,SmbBNegEnum);
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[18001] | 49 |
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[18266] | 50 | /*Recover surface elevation at vertices: */
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[18001] | 51 | element->GetInputListOnVertices(s,SurfaceEnum);
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| 52 |
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| 53 | /*Get material parameters :*/
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[23644] | 54 | rho_ice=element->FindParam(MaterialsRhoIceEnum);
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| 55 | rho_water=element->FindParam(MaterialsRhoFreshwaterEnum);
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[18001] | 56 |
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[21469] | 57 | /* Get constants */
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| 58 | femmodel->parameters->FindParam(&yts,ConstantsYtsEnum);
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| 59 |
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[18001] | 60 | // loop over all vertices
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| 61 | for(v=0;v<numvertices;v++){
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| 62 | if(Smbref[v]>0){
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| 63 | smb[v]=Smbref[v]+b_pos[v]*(s[v]-Href[v]);
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| 64 | }
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| 65 | else{
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| 66 | smb[v]=Smbref[v]+b_neg[v]*(s[v]-Href[v]);
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| 67 | }
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[21469] | 68 |
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[18266] | 69 | smb[v]=smb[v]/1000*rho_water/rho_ice; // SMB in m/y ice
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[18001] | 70 | } //end of the loop over the vertices
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| 71 |
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| 72 | /*Add input to element and Free memory*/
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[25379] | 73 | element->AddInput(SmbMassBalanceEnum,smb,P1Enum);
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[18001] | 74 | xDelete<IssmDouble>(Href);
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| 75 | xDelete<IssmDouble>(Smbref);
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| 76 | xDelete<IssmDouble>(b_pos);
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| 77 | xDelete<IssmDouble>(b_neg);
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| 78 | xDelete<IssmDouble>(s);
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| 79 | xDelete<IssmDouble>(smb);
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[17085] | 80 | }
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| 81 |
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| 82 | }/*}}}*/
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[21469] | 83 | void SmbGradientsElax(FemModel* femmodel){/*{{{*/
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| 84 |
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| 85 | // void SurfaceMassBalancex(hd,agd,ni){
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| 86 | // INPUT parameters: ni: working size of arrays
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| 87 | // INPUT: surface elevation (m): hd(NA)
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| 88 | // OUTPUT: surface mass-balance (m/yr ice): agd(NA)
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| 89 | int v;
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| 90 |
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| 91 | /*Loop over all the elements of this partition*/
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[25539] | 92 | for(Object* & object : femmodel->elements->objects){
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| 93 | Element* element=xDynamicCast<Element*>(object);
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[21469] | 94 |
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| 95 | /*Allocate all arrays*/
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| 96 | int numvertices = element->GetNumberOfVertices();
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| 97 | IssmDouble* ela = xNew<IssmDouble>(numvertices); // Equilibrium Line Altitude (m a.s.l) to which deviations are used to calculate the SMB
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| 98 | IssmDouble* b_pos = xNew<IssmDouble>(numvertices); // SMB gradient above ELA (m ice eq. per m elevation change)
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| 99 | IssmDouble* b_neg = xNew<IssmDouble>(numvertices); // SMB gradient below ELA (m ice eq. per m elevation change)
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| 100 | IssmDouble* b_max = xNew<IssmDouble>(numvertices); // Upper cap on SMB rate (m/y ice eq.)
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| 101 | IssmDouble* b_min = xNew<IssmDouble>(numvertices); // Lower cap on SMB rate (m/y ice eq.)
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| 102 | IssmDouble* s = xNew<IssmDouble>(numvertices); // Surface elevation (m a.s.l.)
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| 103 | IssmDouble* smb = xNew<IssmDouble>(numvertices); // SMB (m/y ice eq.)
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| 104 |
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| 105 | /*Recover ELA, SMB gradients, and caps*/
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| 106 | element->GetInputListOnVertices(ela,SmbElaEnum);
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| 107 | element->GetInputListOnVertices(b_pos,SmbBPosEnum);
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| 108 | element->GetInputListOnVertices(b_neg,SmbBNegEnum);
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| 109 | element->GetInputListOnVertices(b_max,SmbBMaxEnum);
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| 110 | element->GetInputListOnVertices(b_min,SmbBMinEnum);
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| 111 |
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| 112 | /*Recover surface elevation at vertices: */
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| 113 | element->GetInputListOnVertices(s,SurfaceEnum);
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| 114 |
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| 115 | /*Loop over all vertices, calculate SMB*/
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| 116 | for(v=0;v<numvertices;v++){
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| 117 | // if surface is above the ELA
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[23366] | 118 | if(s[v]>ela[v]){
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[21469] | 119 | smb[v]=b_pos[v]*(s[v]-ela[v]);
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| 120 | }
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| 121 | // if surface is below or equal to the ELA
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| 122 | else{
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| 123 | smb[v]=b_neg[v]*(s[v]-ela[v]);
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| 124 | }
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| 125 |
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| 126 | // if SMB is larger than upper cap, set SMB to upper cap
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| 127 | if(smb[v]>b_max[v]){
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| 128 | smb[v]=b_max[v];
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| 129 | }
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| 130 | // if SMB is smaller than lower cap, set SMB to lower cap
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| 131 | if(smb[v]<b_min[v]){
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| 132 | smb[v]=b_min[v];
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| 133 | }
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| 134 | } //end of the loop over the vertices
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| 135 |
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| 136 | /*Add input to element and Free memory*/
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[25379] | 137 | element->AddInput(SmbMassBalanceEnum,smb,P1Enum);
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[21469] | 138 | xDelete<IssmDouble>(ela);
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| 139 | xDelete<IssmDouble>(b_pos);
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| 140 | xDelete<IssmDouble>(b_neg);
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| 141 | xDelete<IssmDouble>(b_max);
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| 142 | xDelete<IssmDouble>(b_min);
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| 143 | xDelete<IssmDouble>(s);
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| 144 | xDelete<IssmDouble>(smb);
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| 145 |
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| 146 | }
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| 147 |
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| 148 | }/*}}}*/
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[26477] | 149 | void SmbautoregressionInitx(FemModel* femmodel){/*{{{*/
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[26482] | 150 |
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[26477] | 151 | /*Initialization step of Smbautoregressionx*/
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[26482] | 152 | int M,N,Nphi,arorder,numbasins,my_rank;
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[26477] | 153 | IssmDouble starttime,tstep_ar,tinit_ar;
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[26482] | 154 | femmodel->parameters->FindParam(&numbasins,SmbNumBasinsEnum);
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| 155 | femmodel->parameters->FindParam(&arorder,SmbAutoregressiveOrderEnum);
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[26495] | 156 | IssmDouble* beta0 = NULL;
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| 157 | IssmDouble* beta1 = NULL;
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| 158 | IssmDouble* phi = NULL;
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| 159 | IssmDouble* covmat = NULL;
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[26477] | 160 | femmodel->parameters->FindParam(&starttime,TimesteppingStartTimeEnum);
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| 161 | femmodel->parameters->FindParam(&tstep_ar,SmbAutoregressionTimestepEnum);
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| 162 | femmodel->parameters->FindParam(&tinit_ar,SmbAutoregressionInitialTimeEnum);
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| 163 | femmodel->parameters->FindParam(&beta0,&M,SmbBeta0Enum); _assert_(M==numbasins);
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| 164 | femmodel->parameters->FindParam(&beta1,&M,SmbBeta1Enum); _assert_(M==numbasins);
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| 165 | femmodel->parameters->FindParam(&phi,&M,&Nphi,SmbPhiEnum); _assert_(M==numbasins); _assert_(Nphi==arorder);
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| 166 | femmodel->parameters->FindParam(&covmat,&M,&N,SmbCovmatEnum); _assert_(M==numbasins); _assert_(N==numbasins);
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[26482] | 167 |
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[26477] | 168 | /*AR model spin-up*/
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[26482] | 169 | int nspin{2*arorder+5};
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| 170 | IssmDouble* noisespin = xNewZeroInit<IssmDouble>(numbasins*nspin);
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| 171 | my_rank=IssmComm::GetRank();
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| 172 | if(my_rank==0){
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[26483] | 173 | bool randomflag{};
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| 174 | femmodel->parameters->FindParam(&randomflag,SmbRandomflagEnum);
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| 175 | int fixedseed;
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[26482] | 176 | for(int i=0;i<nspin;i++){
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[26495] | 177 | //IssmDouble* temparray = xNew<IssmDouble>(numbasins);
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| 178 | IssmDouble* temparray = NULL;
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[26483] | 179 | /*Determine whether random seed is fixed to for loop step (randomflag==false) or random seed truly random (randomflag==true)*/
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| 180 | if(randomflag) fixedseed=-1;
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| 181 | else fixedseed = i;
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| 182 | multivariateNormal(&temparray,numbasins,0.0,covmat,fixedseed);
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[26482] | 183 | for(int j=0;j<numbasins;j++){noisespin[i*numbasins+j]=temparray[j];}
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| 184 | xDelete<IssmDouble>(temparray);
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| 185 | }
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[26477] | 186 | }
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[26482] | 187 | ISSM_MPI_Bcast(noisespin,numbasins*nspin,ISSM_MPI_DOUBLE,0,IssmComm::GetComm());
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| 188 |
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[26477] | 189 | /*Initialize SmbValuesAutoregressionEnum*/
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| 190 | for(Object* &object:femmodel->elements->objects){
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| 191 | Element* element = xDynamicCast<Element*>(object); //generate element object
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[26495] | 192 | element->AutoregressionInit(numbasins,arorder,nspin,starttime,tstep_ar,tinit_ar,beta0,beta1,phi,noisespin,SMBautoregressionEnum);
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[26477] | 193 | }
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[26482] | 194 |
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[26477] | 195 | /*Cleanup*/
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| 196 | xDelete<IssmDouble>(beta0);
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| 197 | xDelete<IssmDouble>(beta1);
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| 198 | xDelete<IssmDouble>(phi);
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| 199 | xDelete<IssmDouble>(noisespin);
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| 200 | xDelete<IssmDouble>(covmat);
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| 201 | }/*}}}*/
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| 202 | void Smbautoregressionx(FemModel* femmodel){/*{{{*/
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[26483] | 203 |
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[26477] | 204 | /*Get time parameters*/
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| 205 | IssmDouble time,dt,starttime,tstep_ar;
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| 206 | femmodel->parameters->FindParam(&time,TimeEnum);
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| 207 | femmodel->parameters->FindParam(&dt,TimesteppingTimeStepEnum);
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| 208 | femmodel->parameters->FindParam(&starttime,TimesteppingStartTimeEnum);
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| 209 | femmodel->parameters->FindParam(&tstep_ar,SmbAutoregressionTimestepEnum);
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[26482] | 210 |
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[26477] | 211 | /*Initialize module at first time step*/
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| 212 | if(time<=starttime+dt){SmbautoregressionInitx(femmodel);}
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| 213 | /*Determine if this is a time step for the AR model*/
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[26482] | 214 | bool isstepforar = false;
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[26479] | 215 |
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| 216 | #ifndef _HAVE_AD_
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[26482] | 217 | if((fmod(time,tstep_ar)<fmod((time-dt),tstep_ar)) || (time<=starttime+dt) || tstep_ar==dt) isstepforar = true;
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[26479] | 218 | #else
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| 219 | _error_("not implemented yet");
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| 220 | #endif
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| 221 |
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[26477] | 222 | /*Load parameters*/
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[26482] | 223 | int M,N,Nphi,arorder,numbasins,my_rank;
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[26477] | 224 | femmodel->parameters->FindParam(&numbasins,SmbNumBasinsEnum);
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| 225 | femmodel->parameters->FindParam(&arorder,SmbAutoregressiveOrderEnum);
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| 226 | IssmDouble tinit_ar;
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[26495] | 227 | IssmDouble* beta0 = NULL;
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| 228 | IssmDouble* beta1 = NULL;
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| 229 | IssmDouble* phi = NULL;
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| 230 | IssmDouble* covmat = NULL;
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[26481] | 231 | IssmDouble* noiseterms = xNew<IssmDouble>(numbasins);
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[26477] | 232 | femmodel->parameters->FindParam(&tinit_ar,SmbAutoregressionInitialTimeEnum);
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| 233 | femmodel->parameters->FindParam(&beta0,&M,SmbBeta0Enum); _assert_(M==numbasins);
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| 234 | femmodel->parameters->FindParam(&beta1,&M,SmbBeta1Enum); _assert_(M==numbasins);
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| 235 | femmodel->parameters->FindParam(&phi,&M,&Nphi,SmbPhiEnum); _assert_(M==numbasins); _assert_(Nphi==arorder);
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| 236 | femmodel->parameters->FindParam(&covmat,&M,&N,SmbCovmatEnum); _assert_(M==numbasins); _assert_(N==numbasins);
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[26481] | 237 |
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[26482] | 238 | /*Time elapsed with respect to AR model initial time*/
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[26481] | 239 | IssmDouble telapsed_ar = time-tinit_ar;
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| 240 |
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[26477] | 241 | /*Before looping through elements: compute noise term specific to each basin from covmat*/
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[26482] | 242 | my_rank=IssmComm::GetRank();
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| 243 | if(my_rank==0){
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[26483] | 244 | bool randomflag{};
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| 245 | femmodel->parameters->FindParam(&randomflag,SmbRandomflagEnum);
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| 246 | /*Determine whether random seed is fixed to time step (randomflag==false) or random seed truly random (randomflag==true)*/
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| 247 | int fixedseed;
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| 248 | if(randomflag) fixedseed=-1;
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[26485] | 249 | else fixedseed = reCast<int,IssmDouble>((time-starttime)/dt);
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[26495] | 250 | /*multivariateNormal needs to be passed a NULL pointer to avoid memory leak issues*/
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| 251 | IssmDouble* temparray = NULL;
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| 252 | multivariateNormal(&temparray,numbasins,0.0,covmat,fixedseed);
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| 253 | for(int i=0;i<numbasins;i++) noiseterms[i]=temparray[i];
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| 254 | xDelete<IssmDouble>(temparray);
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[26482] | 255 | }
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| 256 | ISSM_MPI_Bcast(noiseterms,numbasins,ISSM_MPI_DOUBLE,0,IssmComm::GetComm());
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[26481] | 257 |
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[26477] | 258 | /*Loop over each element to compute SMB at vertices*/
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| 259 | for(Object* &object:femmodel->elements->objects){
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[26481] | 260 | Element* element = xDynamicCast<Element*>(object);
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[26495] | 261 | element->Autoregression(isstepforar,arorder,telapsed_ar,beta0,beta1,phi,noiseterms,SMBautoregressionEnum);
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[26477] | 262 | }
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[26481] | 263 |
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[26477] | 264 | /*Cleanup*/
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| 265 | xDelete<IssmDouble>(beta0);
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| 266 | xDelete<IssmDouble>(beta1);
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| 267 | xDelete<IssmDouble>(phi);
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| 268 | xDelete<IssmDouble>(noiseterms);
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| 269 | xDelete<IssmDouble>(covmat);
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| 270 | }/*}}}*/
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[17085] | 271 | void Delta18oParameterizationx(FemModel* femmodel){/*{{{*/
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| 272 |
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[25539] | 273 | for(Object* & object : femmodel->elements->objects){
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| 274 | Element* element=xDynamicCast<Element*>(object);
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[17085] | 275 | element->Delta18oParameterization();
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| 276 | }
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| 277 |
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| 278 | }/*}}}*/
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[18968] | 279 | void MungsmtpParameterizationx(FemModel* femmodel){/*{{{*/
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| 280 |
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[25539] | 281 | for(Object* & object : femmodel->elements->objects){
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| 282 | Element* element=xDynamicCast<Element*>(object);
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[18968] | 283 | element->MungsmtpParameterization();
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| 284 | }
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| 285 |
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| 286 | }/*}}}*/
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[19172] | 287 | void Delta18opdParameterizationx(FemModel* femmodel){/*{{{*/
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| 288 |
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[25539] | 289 | for(Object* & object : femmodel->elements->objects){
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| 290 | Element* element=xDynamicCast<Element*>(object);
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[19172] | 291 | element->Delta18opdParameterization();
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| 292 | }
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| 293 |
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| 294 | }/*}}}*/
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[17085] | 295 | void PositiveDegreeDayx(FemModel* femmodel){/*{{{*/
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| 296 |
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| 297 | // void PositiveDegreeDayx(hd,vTempsea,vPrec,agd,Tsurf,ni){
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| 298 | // note "v" prefix means 12 monthly means, ie time dimension
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| 299 | // INPUT parameters: ni: working size of arrays
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| 300 | // INPUT: surface elevation (m): hd(NA)
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| 301 | // monthly mean surface sealevel temperature (degrees C): vTempsea(NA
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[23366] | 302 | // ,NTIME)
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[17085] | 303 | // monthly mean precip rate (m/yr water equivalent): vPrec(NA,NTIME)
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| 304 | // OUTPUT: mass-balance (m/yr ice): agd(NA)
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| 305 | // mean annual surface temperature (degrees C): Tsurf(NA)
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| 306 |
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[25539] | 307 | int it, jj, itm;
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[17085] | 308 | IssmDouble DT = 0.02, sigfac, snormfac;
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[23366] | 309 | IssmDouble signorm = 5.5; // signorm : sigma of the temperature distribution for a normal day
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[17085] | 310 | IssmDouble siglim; // sigma limit for the integration which is equal to 2.5 sigmanorm
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| 311 | IssmDouble signormc = signorm - 0.5; // sigma of the temperature distribution for cloudy day
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| 312 | IssmDouble siglimc, siglim0, siglim0c;
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| 313 | IssmDouble tstep, tsint, tint, tstepc;
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| 314 | int NPDMAX = 1504, NPDCMAX = 1454;
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[23366] | 315 | //IssmDouble pdds[NPDMAX]={0};
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[17085] | 316 | //IssmDouble pds[NPDCMAX]={0};
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| 317 | IssmDouble pddt, pd ; // pd : snow/precip fraction, precipitation falling as snow
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| 318 | IssmDouble PDup, PDCUT = 2.0; // PDcut: rain/snow cutoff temperature (C)
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| 319 | IssmDouble tstar; // monthly mean surface temp
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| 320 |
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[18968] | 321 | bool ismungsm;
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[22448] | 322 | bool issetpddfac;
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[18968] | 323 |
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[17085] | 324 | IssmDouble *pdds = NULL;
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| 325 | IssmDouble *pds = NULL;
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| 326 | Element *element = NULL;
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| 327 |
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[23366] | 328 | pdds=xNew<IssmDouble>(NPDMAX+1);
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| 329 | pds=xNew<IssmDouble>(NPDCMAX+1);
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[17085] | 330 |
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[18968] | 331 | // Get ismungsm parameter
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[19527] | 332 | femmodel->parameters->FindParam(&ismungsm,SmbIsmungsmEnum);
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[18968] | 333 |
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[22448] | 334 | // Get issetpddfac parameter
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| 335 | femmodel->parameters->FindParam(&issetpddfac,SmbIssetpddfacEnum);
|
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| 336 |
|
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[17085] | 337 | /* initialize PDD (creation of a lookup table)*/
|
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| 338 | tstep = 0.1;
|
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| 339 | tsint = tstep*0.5;
|
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| 340 | sigfac = -1.0/(2.0*pow(signorm,2));
|
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| 341 | snormfac = 1.0/(signorm*sqrt(2.0*acos(-1.0)));
|
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| 342 | siglim = 2.5*signorm;
|
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| 343 | siglimc = 2.5*signormc;
|
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| 344 | siglim0 = siglim/DT + 0.5;
|
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| 345 | siglim0c = siglimc/DT + 0.5;
|
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| 346 | PDup = siglimc+PDCUT;
|
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| 347 |
|
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| 348 | itm = reCast<int,IssmDouble>((2*siglim/DT + 1.5));
|
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| 349 |
|
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| 350 | if(itm >= NPDMAX) _error_("increase NPDMAX in massBalance.cpp");
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[23366] | 351 | for(it = 0; it < itm; it++){
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[17085] | 352 | // tstar = REAL(it)*DT-siglim;
|
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| 353 | tstar = it*DT-siglim;
|
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| 354 | tint = tsint;
|
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| 355 | pddt = 0.;
|
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| 356 | for ( jj = 0; jj < 600; jj++){
|
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| 357 | if (tint > (tstar+siglim)){break;}
|
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| 358 | pddt = pddt + tint*exp(sigfac*(pow((tint-tstar),2)))*tstep;
|
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| 359 | tint = tint+tstep;
|
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| 360 | }
|
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| 361 | pdds[it] = pddt*snormfac;
|
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| 362 | }
|
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| 363 | pdds[itm+1] = siglim + DT;
|
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| 364 |
|
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| 365 | //*********compute PD(T) : snow/precip fraction. precipitation falling as snow
|
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| 366 | tstepc = 0.1;
|
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| 367 | tsint = PDCUT-tstepc*0.5;
|
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| 368 | signormc = signorm - 0.5;
|
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| 369 | sigfac = -1.0/(2.0*pow(signormc,2));
|
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| 370 | snormfac = 1.0/(signormc*sqrt(2.0*acos(-1.0)));
|
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| 371 | siglimc = 2.5*signormc ;
|
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| 372 | itm = reCast<int,IssmDouble>((PDCUT+2.*siglimc)/DT + 1.5);
|
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| 373 | if(itm >= NPDCMAX) _error_("increase NPDCMAX in p35com");
|
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| 374 | for(it = 0; it < itm; it++ ){
|
---|
| 375 | tstar = it*DT-siglimc;
|
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| 376 | // tstar = REAL(it)*DT-siglimc;
|
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| 377 | tint = tsint; // start against upper bound
|
---|
| 378 | pd = 0.;
|
---|
| 379 | for (jj = 0; jj < 600; jj++){
|
---|
| 380 | if (tint<(tstar-siglimc)) {break;}
|
---|
| 381 | pd = pd + exp(sigfac*(pow((tint-tstar),2)))*tstepc;
|
---|
| 382 | tint = tint-tstepc;
|
---|
| 383 | }
|
---|
| 384 | pds[it] = pd*snormfac; // gaussian integral lookup table for snow fraction
|
---|
| 385 | }
|
---|
| 386 | pds[itm+1] = 0.;
|
---|
| 387 | // *******END initialize PDD
|
---|
| 388 |
|
---|
[25539] | 389 | for(Object* & object : femmodel->elements->objects){
|
---|
| 390 | element=xDynamicCast<Element*>(object);
|
---|
[22448] | 391 | element->PositiveDegreeDay(pdds,pds,signorm,ismungsm,issetpddfac);
|
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[17085] | 392 | }
|
---|
| 393 | /*free ressouces: */
|
---|
| 394 | xDelete<IssmDouble>(pdds);
|
---|
| 395 | xDelete<IssmDouble>(pds);
|
---|
| 396 | }/*}}}*/
|
---|
[23317] | 397 | void PositiveDegreeDaySicopolisx(FemModel* femmodel){/*{{{*/
|
---|
[23366] | 398 |
|
---|
[23317] | 399 | bool isfirnwarming;
|
---|
[23328] | 400 | femmodel->parameters->FindParam(&isfirnwarming,SmbIsfirnwarmingEnum);
|
---|
[23366] | 401 |
|
---|
[25539] | 402 | for(Object* & object : femmodel->elements->objects){
|
---|
| 403 | Element* element=xDynamicCast<Element*>(object);
|
---|
[23317] | 404 | element->PositiveDegreeDaySicopolis(isfirnwarming);
|
---|
| 405 | }
|
---|
| 406 |
|
---|
| 407 | }/*}}}*/
|
---|
[17085] | 408 | void SmbHenningx(FemModel* femmodel){/*{{{*/
|
---|
| 409 |
|
---|
[17087] | 410 | /*Intermediaries*/
|
---|
[17403] | 411 | IssmDouble z_critical = 1675.;
|
---|
| 412 | IssmDouble dz = 0;
|
---|
| 413 | IssmDouble a = -15.86;
|
---|
| 414 | IssmDouble b = 0.00969;
|
---|
| 415 | IssmDouble c = -0.235;
|
---|
| 416 | IssmDouble f = 1.;
|
---|
| 417 | IssmDouble g = -0.0011;
|
---|
| 418 | IssmDouble h = -1.54e-5;
|
---|
| 419 | IssmDouble smb,smbref,anomaly,yts,z;
|
---|
[22249] | 420 |
|
---|
| 421 | /* Get constants */
|
---|
| 422 | femmodel->parameters->FindParam(&yts,ConstantsYtsEnum);
|
---|
| 423 | /*iomodel->FindConstant(&yts,"md.constants.yts");*/
|
---|
| 424 | /*this->parameters->FindParam(&yts,ConstantsYtsEnum);*/
|
---|
| 425 | /*Mathieu original*/
|
---|
| 426 | /*IssmDouble smb,smbref,z;*/
|
---|
| 427 |
|
---|
[17087] | 428 | /*Loop over all the elements of this partition*/
|
---|
[25539] | 429 | for(Object* & object : femmodel->elements->objects){
|
---|
| 430 | Element* element=xDynamicCast<Element*>(object);
|
---|
[17087] | 431 |
|
---|
| 432 | /*Get reference SMB (uncorrected) and allocate all arrays*/
|
---|
| 433 | int numvertices = element->GetNumberOfVertices();
|
---|
| 434 | IssmDouble* surfacelist = xNew<IssmDouble>(numvertices);
|
---|
| 435 | IssmDouble* smblistref = xNew<IssmDouble>(numvertices);
|
---|
| 436 | IssmDouble* smblist = xNew<IssmDouble>(numvertices);
|
---|
| 437 | element->GetInputListOnVertices(surfacelist,SurfaceEnum);
|
---|
[19527] | 438 | element->GetInputListOnVertices(smblistref,SmbSmbrefEnum);
|
---|
[17087] | 439 |
|
---|
| 440 | /*Loop over all vertices of element and correct SMB as a function of altitude z*/
|
---|
| 441 | for(int v=0;v<numvertices;v++){
|
---|
| 442 |
|
---|
[17403] | 443 | /*Get vertex elevation, anoma smb*/
|
---|
[17087] | 444 | z = surfacelist[v];
|
---|
[17403] | 445 | anomaly = smblistref[v];
|
---|
[17087] | 446 |
|
---|
[22249] | 447 | /* Henning edited acc. to Riannes equations*/
|
---|
| 448 | /* Set SMB maximum elevation, if dz = 0 -> z_critical = 1675 */
|
---|
| 449 | z_critical = z_critical + dz;
|
---|
| 450 |
|
---|
| 451 | /* Calculate smb acc. to the surface elevation z */
|
---|
| 452 | if(z<z_critical){
|
---|
[17403] | 453 | smb = a + b*z + c;
|
---|
[17087] | 454 | }
|
---|
| 455 | else{
|
---|
[22249] | 456 | smb = (a + b*z)*(f + g*(z-z_critical) + h*(z-z_critical)*(z-z_critical)) + c;
|
---|
[17087] | 457 | }
|
---|
[22249] | 458 |
|
---|
[18584] | 459 | /* Compute smb including anomaly,
|
---|
| 460 | correct for number of seconds in a year [s/yr]*/
|
---|
| 461 | smb = smb/yts + anomaly;
|
---|
| 462 |
|
---|
[17087] | 463 | /*Update array accordingly*/
|
---|
| 464 | smblist[v] = smb;
|
---|
| 465 |
|
---|
| 466 | }
|
---|
| 467 |
|
---|
| 468 | /*Add input to element and Free memory*/
|
---|
[25379] | 469 | element->AddInput(SmbMassBalanceEnum,smblist,P1Enum);
|
---|
[17087] | 470 | xDelete<IssmDouble>(surfacelist);
|
---|
| 471 | xDelete<IssmDouble>(smblistref);
|
---|
| 472 | xDelete<IssmDouble>(smblist);
|
---|
[17085] | 473 | }
|
---|
| 474 |
|
---|
| 475 | }/*}}}*/
|
---|
[18001] | 476 | void SmbComponentsx(FemModel* femmodel){/*{{{*/
|
---|
| 477 |
|
---|
| 478 | // void SmbComponentsx(acc,evap,runoff,ni){
|
---|
| 479 | // INPUT parameters: ni: working size of arrays
|
---|
| 480 | // INPUT: surface accumulation (m/yr water equivalent): acc
|
---|
| 481 | // surface evaporation (m/yr water equivalent): evap
|
---|
| 482 | // surface runoff (m/yr water equivalent): runoff
|
---|
| 483 | // OUTPUT: mass-balance (m/yr ice): agd(NA)
|
---|
[23814] | 484 |
|
---|
[18001] | 485 | /*Loop over all the elements of this partition*/
|
---|
[25539] | 486 | for(Object* & object : femmodel->elements->objects){
|
---|
| 487 | Element* element=xDynamicCast<Element*>(object);
|
---|
[18001] | 488 |
|
---|
| 489 | /*Allocate all arrays*/
|
---|
| 490 | int numvertices = element->GetNumberOfVertices();
|
---|
[23366] | 491 | IssmDouble* acc = xNew<IssmDouble>(numvertices);
|
---|
[18001] | 492 | IssmDouble* evap = xNew<IssmDouble>(numvertices);
|
---|
[23366] | 493 | IssmDouble* runoff = xNew<IssmDouble>(numvertices);
|
---|
[18001] | 494 | IssmDouble* smb = xNew<IssmDouble>(numvertices);
|
---|
| 495 |
|
---|
| 496 | /*Recover Smb Components*/
|
---|
[26208] | 497 | element->GetInputListOnVertices(acc,SmbAccumulationEnum);
|
---|
| 498 | element->GetInputListOnVertices(evap,SmbEvaporationEnum);
|
---|
| 499 | element->GetInputListOnVertices(runoff,SmbRunoffEnum);
|
---|
[18001] | 500 |
|
---|
| 501 | // loop over all vertices
|
---|
[24335] | 502 | for(int v=0;v<numvertices;v++) smb[v]=acc[v]-evap[v]-runoff[v];
|
---|
[18001] | 503 |
|
---|
| 504 | /*Add input to element and Free memory*/
|
---|
[25379] | 505 | element->AddInput(SmbMassBalanceEnum,smb,P1Enum);
|
---|
[18001] | 506 | xDelete<IssmDouble>(acc);
|
---|
| 507 | xDelete<IssmDouble>(evap);
|
---|
| 508 | xDelete<IssmDouble>(runoff);
|
---|
| 509 | xDelete<IssmDouble>(smb);
|
---|
| 510 | }
|
---|
| 511 |
|
---|
| 512 | }/*}}}*/
|
---|
| 513 | void SmbMeltComponentsx(FemModel* femmodel){/*{{{*/
|
---|
| 514 |
|
---|
| 515 | // void SmbMeltComponentsx(acc,evap,melt,refreeze,ni){
|
---|
| 516 | // INPUT parameters: ni: working size of arrays
|
---|
| 517 | // INPUT: surface accumulation (m/yr water equivalent): acc
|
---|
| 518 | // surface evaporation (m/yr water equivalent): evap
|
---|
| 519 | // surface melt (m/yr water equivalent): melt
|
---|
| 520 | // refreeze of surface melt (m/yr water equivalent): refreeze
|
---|
| 521 | // OUTPUT: mass-balance (m/yr ice): agd(NA)
|
---|
[23814] | 522 |
|
---|
[18001] | 523 | /*Loop over all the elements of this partition*/
|
---|
[25539] | 524 | for(Object* & object : femmodel->elements->objects){
|
---|
| 525 | Element* element=xDynamicCast<Element*>(object);
|
---|
[18001] | 526 |
|
---|
| 527 | /*Allocate all arrays*/
|
---|
| 528 | int numvertices = element->GetNumberOfVertices();
|
---|
| 529 | IssmDouble* acc = xNew<IssmDouble>(numvertices);
|
---|
[23366] | 530 | IssmDouble* evap = xNew<IssmDouble>(numvertices);
|
---|
[18001] | 531 | IssmDouble* melt = xNew<IssmDouble>(numvertices);
|
---|
| 532 | IssmDouble* refreeze = xNew<IssmDouble>(numvertices);
|
---|
| 533 | IssmDouble* smb = xNew<IssmDouble>(numvertices);
|
---|
| 534 |
|
---|
| 535 | /*Recover Smb Components*/
|
---|
[26208] | 536 | element->GetInputListOnVertices(acc,SmbAccumulationEnum);
|
---|
| 537 | element->GetInputListOnVertices(evap,SmbEvaporationEnum);
|
---|
| 538 | element->GetInputListOnVertices(melt,SmbMeltEnum);
|
---|
| 539 | element->GetInputListOnVertices(refreeze,SmbRefreezeEnum);
|
---|
[18001] | 540 |
|
---|
| 541 | // loop over all vertices
|
---|
[24335] | 542 | for(int v=0;v<numvertices;v++) smb[v]=acc[v]-evap[v]-melt[v]+refreeze[v];
|
---|
[18001] | 543 |
|
---|
| 544 | /*Add input to element and Free memory*/
|
---|
[25379] | 545 | element->AddInput(SmbMassBalanceEnum,smb,P1Enum);
|
---|
[18001] | 546 | xDelete<IssmDouble>(acc);
|
---|
| 547 | xDelete<IssmDouble>(evap);
|
---|
| 548 | xDelete<IssmDouble>(melt);
|
---|
| 549 | xDelete<IssmDouble>(refreeze);
|
---|
| 550 | xDelete<IssmDouble>(smb);
|
---|
| 551 | }
|
---|
| 552 |
|
---|
| 553 | }/*}}}*/
|
---|
[23366] | 554 | void SmbGradientsComponentsx(FemModel* femmodel){/*{{{*/
|
---|
| 555 |
|
---|
[25539] | 556 | for(Object* & object : femmodel->elements->objects){
|
---|
| 557 | Element* element=xDynamicCast<Element*>(object);
|
---|
[23366] | 558 | element->SmbGradCompParameterization();
|
---|
| 559 | }
|
---|
| 560 |
|
---|
| 561 | }/*}}}*/
|
---|
[23540] | 562 | #ifdef _HAVE_SEMIC_
|
---|
| 563 | void SmbSemicx(FemModel* femmodel){/*{{{*/
|
---|
| 564 |
|
---|
[25539] | 565 | for(Object* & object : femmodel->elements->objects){
|
---|
| 566 | Element* element=xDynamicCast<Element*>(object);
|
---|
[23540] | 567 | element->SmbSemic();
|
---|
| 568 | }
|
---|
| 569 |
|
---|
| 570 | }/*}}}*/
|
---|
| 571 | #else
|
---|
| 572 | void SmbSemicx(FemModel* femmodel){_error_("SEMIC not installed");}
|
---|
| 573 | #endif //_HAVE_SEMIC_
|
---|