1 | %Test Name: Earth_Antarctica_GIA
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2 |
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3 | %Data paths: {{{
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4 | modeldatapath='/Users/larour/ModelData';
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5 | shppath='/Users/larour/issm-jpl/proj-group/qgis/NightlyRun';
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6 | gshhsshapefile=[modeldatapath '/Gshhg/Shp/GSHHS_shp/c/GSHHS_c_L1.shp'];
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7 | %}}}
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8 |
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9 | skipmesh=1;
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10 |
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11 | %create sealevel model to hold our information:
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12 | if ~skipmesh,
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13 | sl=sealevelmodel();
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14 | %Create basins using boundaries from shapefile: %{{{
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15 | %HemisphereWest: {{{
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16 | sl.addbasin(basin('continent','hemispherewest','name','hemispherewest','epsg',3587,'boundaries',{... %Peru projection 3587
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17 | boundary('shppath',shppath,'shpfilename','HemisphereSplit','epsg',4326,'orientation','reverse'),...
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18 | boundary('shppath',shppath,'shpfilename','NorthAntarctica','epsg',3031),...
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19 | boundary('shppath',shppath,'shpfilename','RonneBrunt','epsg',3031,'orientation','reverse'),...
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20 | boundary('shppath',shppath,'shpfilename','RonneEastSummit','epsg',3031),...
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21 | boundary('shppath',shppath,'shpfilename','RonneFront','epsg',3031,'orientation','reverse'),...
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22 | boundary('shppath',shppath,'shpfilename','RonneWestSummit','epsg',3031),...
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23 | boundary('shppath',shppath,'shpfilename','WestAntarctica2','epsg',3031,'orientation','reverse'),...
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24 | boundary('shppath',shppath,'shpfilename','SouthAntarctica','epsg',3031)...
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25 | }));
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26 | %}}}
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27 | %HemisphereEast: {{{
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28 | sl.addbasin(basin('continent','hemisphereeast','name','hemisphereeast','epsg',4462,'boundaries',{... %Australian projection lat,long
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29 | boundary('shppath',shppath,'shpfilename','HemisphereSplit','epsg',4326),...
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30 | boundary('shppath',shppath,'shpfilename','SouthAntarctica','epsg',3031),...
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31 | boundary('shppath',shppath,'shpfilename','EastAntarctica2','epsg',3031,'orientation','reverse'),...
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32 | boundary('shppath',shppath,'shpfilename','NorthAntarctica','epsg',3031)...
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33 | }));
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34 | %}}}
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35 | %Antarctica excluding Ronne: {{{
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36 | sl.addbasin(basin('continent','antarctica','name','antarctica-grounded','epsg',3031,'boundaries',{...
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37 | boundary('shppath',shppath,'shpfilename','NorthAntarctica','epsg',3031),...
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38 | boundary('shppath',shppath,'shpfilename','EastAntarctica2','epsg',3031),...
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39 | boundary('shppath',shppath,'shpfilename','SouthAntarctica','epsg',3031),...
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40 | boundary('shppath',shppath,'shpfilename','WestAntarctica2','epsg',3031)...
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41 | boundary('shppath',shppath,'shpfilename','RonneWestSummit','epsg',3031)...
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42 | boundary('shppath',shppath,'shpfilename','RonneIceShelf','epsg',3031)...
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43 | boundary('shppath',shppath,'shpfilename','RonneEastSummit','epsg',3031)...
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44 | boundary('shppath',shppath,'shpfilename','RonneBrunt','epsg',3031)...
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45 | }));
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46 | %}}}
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47 | %Ronne: {{{
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48 | sl.addbasin(basin('continent','antarctica','name','ronne','epsg',3031,'boundaries',{...
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49 | boundary('shppath',shppath,'shpfilename','RonneWestSummit','epsg',3031),...
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50 | boundary('shppath',shppath,'shpfilename','RonneIceShelf','epsg',3031),...
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51 | boundary('shppath',shppath,'shpfilename','RonneEastSummit','epsg',3031),...
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52 | boundary('shppath',shppath,'shpfilename','RonneFront','epsg',3031,'orientation','reverse')...
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53 | }));
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54 | %}}}
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55 | %}}}
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56 | %Go through basins and mesh: %{{{
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57 | %meshing parameters: {{{
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58 | hmin=500; hmax=2000; hmin=hmin*1000; hmax=hmax*1000;
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59 | tolerance=100; %tolerance of 100m on Earth position when mergin 3d meshes
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60 | threshold=1;
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61 | defaultoptions={'KeepVertices',0,'MaxCornerAngle',0.0000000001,'NoBoundaryRefinment',1};
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62 | alreadyloaded=0;
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63 | %}}}
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64 | for i=sl.basinindx('basin','all'),
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65 |
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66 | bas=sl.basins{i};
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67 | disp(sprintf('Meshing basin %s\n',bas.name));
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68 |
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69 | %recover basin domain:
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70 | domain=bas.contour();
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71 |
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72 | %recover coastline inside basin, using GSHHS_c_L1. It's a lat,long file, hence epsg 4326
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73 | coastline=bas.shapefilecrop('shapefile',gshhsshapefile,'epsgshapefile',4326,'threshold',threshold);
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74 |
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75 | %mesh:
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76 | md=bamg(model,'domain',domain,'subdomains',coastline,'hmin',hmin,'hmax',hmax,defaultoptions{:});
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77 | plotmodel(md,'data','mesh');pause(1);
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78 |
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79 | %miscellaneous:
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80 | md.mesh.epsg=bas.epsg; md.miscellaneous.name=bas.name;
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81 |
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82 | %recover mask where we have land:
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83 | md.private.bamg.landmask=double(md.private.bamg.mesh.Triangles(:,4)>=1);
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84 |
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85 | %vertex connectivity:
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86 | md.mesh.vertexconnectivity=NodeConnectivity(md.mesh.elements,md.mesh.numberofvertices);
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87 |
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88 | %add model to sl icecaps:
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89 | sl.addicecap(md);
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90 | end
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91 | %}}}
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92 | end
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93 | %Parameterize ice sheets : {{{
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94 |
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95 | for ind=sl.basinindx('continent',{'antarctica'}),
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96 | disp(sprintf('Parameterizing basin %s\n', sl.icecaps{ind}.miscellaneous.name));
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97 |
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98 | md=sl.icecaps{ind}; bas=sl.basins{ind};
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99 | %masks : %{{{
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100 | %new type of mask:
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101 | md.mask=maskpsl;
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102 |
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103 | %land and ocean:
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104 | md.mask.land_levelset=ones(md.mesh.numberofvertices,1);
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105 | md.mask.ocean_levelset=zeros(md.mesh.numberofvertices,1);
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106 |
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107 | %ice levelset from domain outlines:
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108 | md.mask.ice_levelset=-ones(md.mesh.numberofvertices,1);
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109 | pos=find(md.mesh.vertexonboundary); md.mask.ice_levelset(pos)=0;
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110 |
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111 | %ice front:
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112 | pos=find(md.mask.ice_levelset==0); md.mask.ocean_levelset(pos)=-1; md.mask.land_levelset(pos)=1;
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113 |
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114 | %now, glaciers:
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115 | md.mask.glacier_levelset=zeros(md.mesh.numberofvertices,1);
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116 | %}}}
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117 | %initial grounding line position: {{{
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118 | if bas.isnameany('antarctica-grounded'),
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119 |
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120 | md.mask.groundedice_levelset=ones(md.mesh.numberofvertices,1);
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121 | end
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122 | if bas.isnameany('ronne'),
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123 |
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124 | md.mask.groundedice_levelset=-ones(md.mesh.numberofvertices,1);
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125 |
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126 | %correction to land and ocean levelset: ice shelf is not on land!
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127 | pos=find(md.mask.ice_levelset<=0 & md.mask.groundedice_levelset<=0);
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128 | md.mask.ocean_levelset(pos)=1;
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129 | md.mask.land_levelset(pos)=-1;
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130 | end
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131 | %}}}
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132 | %latlong: % {{{
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133 | [md.mesh.long,md.mesh.lat]=gdaltransform(md.mesh.x,md.mesh.y,sprintf('EPSG:%i',md.mesh.epsg),'EPSG:4326');
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134 | %}}}
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135 | %geometry: {{{
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136 | if bas.iscontinentany('antarctica'),
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137 | di=md.materials.rho_ice/md.materials.rho_water;
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138 |
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139 | disp(' reading bedrock');
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140 | md.geometry.bed=interpBedmap2(md.mesh.x,md.mesh.y,'bed');
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141 | end % }}}
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142 | %Slr: {{{
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143 | if bas.iscontinentany('antarctica'),
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144 |
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145 | delH=textread([modeldatapath '/AdhikariSciAdvTrends/AIS_delH_trend.txt']);
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146 | longAIS=delH(:,1);
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147 | latAIS=delH(:,2);
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148 | delHAIS=delH(:,3);
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149 | index=delaunay(latAIS,longAIS);
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150 |
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151 | lat=md.mesh.lat;
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152 | long=md.mesh.long+360;
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153 | pos=find(long>360);long(pos)=long(pos)-360;
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154 |
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155 | delHAIS=InterpFromMesh2d(index,longAIS,latAIS,delHAIS,long,lat);
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156 | northpole=find_point(md.mesh.long,md.mesh.lat,0,90); delHAIS(northpole)=0;
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157 |
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158 | md.slr.deltathickness=delHAIS(md.mesh.elements)*[1;1;1]/3/100;
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159 |
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160 | md.slr.sealevel=zeros(md.mesh.numberofvertices,1);
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161 | md.slr.spcthickness=NaN*ones(md.mesh.numberofvertices,1);
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162 | md.slr.Ngia=zeros(md.mesh.numberofvertices,1);
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163 | md.slr.Ugia=zeros(md.mesh.numberofvertices,1);
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164 |
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165 | md.dsl.global_average_thermosteric_sea_level_change=[0;0];
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166 | md.dsl.sea_surface_height_change_above_geoid=zeros(md.mesh.numberofvertices+1,1);
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167 | md.dsl.sea_water_pressure_change_at_sea_floor=zeros(md.mesh.numberofvertices+1,1);
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168 | md.slr.hydro_rate = zeros(md.mesh.numberofvertices,1);
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169 |
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170 | end %}}}
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171 | % material properties: {{{
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172 | md.materials=materials('hydro');
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173 | %}}}
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174 | %diverse: {{{
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175 | md.miscellaneous.name=bas.name;
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176 | % }}}
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177 |
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178 | sl.icecaps{ind}=md;
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179 | end
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180 | %}}}
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181 | % ParameterizeContinents {{{
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182 |
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183 | for ind=sl.basinindx('continent',{'hemisphereeast','hemispherewest'}),
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184 | disp(sprintf('Masks for basin %s\n', sl.icecaps{ind}.miscellaneous.name));
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185 | md=sl.icecaps{ind}; bas=sl.basins{ind};
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186 |
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187 | %recover lat,long:
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188 | [md.mesh.long,md.mesh.lat]=gdaltransform(md.mesh.x,md.mesh.y,sprintf('EPSG:%i',md.mesh.epsg),'EPSG:4326');
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189 |
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190 | %mask: %{{{
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191 | %new type of mask:
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192 | md.mask=maskpsl;
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193 | %Figure out mask from initial mesh: deal with land and ocean masks (land include grounded ice). %{{{
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194 | %first, transform land element mask into vertex driven one.
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195 | land=md.private.bamg.landmask;
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196 | land_mask=-ones(md.mesh.numberofvertices,1);
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197 |
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198 | landels=find(land);
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199 | land_mask(md.mesh.elements(landels,:))=1;
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200 |
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201 | %gothrough edges of each land element
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202 | connectedels=md.mesh.elementconnectivity(landels,:);
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203 | connectedisonocean=~land(connectedels);
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204 | sumconnectedisonocean=sum(connectedisonocean,2);
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205 |
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206 | %figure out which land elements are connected to the ocean:
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207 | landelsconocean=landels(find(sumconnectedisonocean));
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208 |
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209 | ind1=[md.mesh.elements(landelsconocean,1); md.mesh.elements(landelsconocean,2); md.mesh.elements(landelsconocean,3)];
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210 | ind2=[md.mesh.elements(landelsconocean,2); md.mesh.elements(landelsconocean,3); md.mesh.elements(landelsconocean,1)];
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211 |
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212 | h=waitbar(0,'Starting mask processing');
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213 |
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214 | %edge ind1 and ind2:
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215 | for i=1:length(ind1),
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216 | if ~mod(i,100),
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217 | waitbar(i/length(ind1),h,sprintf('%.2i%% along...',i/length(ind1)*100));
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218 | end
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219 |
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220 | els1=md.mesh.vertexconnectivity(ind1(i),1: md.mesh.vertexconnectivity(ind1(i),end));
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221 | els2=md.mesh.vertexconnectivity(ind2(i),1: md.mesh.vertexconnectivity(ind2(i),end));
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222 | els=intersect(els1,els2);
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223 |
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224 | if length(find(land(els)))==1,
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225 | %this edge is on the beach, 0 the edge:
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226 | land_mask(ind1(i))=0;
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227 | land_mask(ind2(i))=0;
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228 | end
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229 | end
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230 | md.mask.land_levelset=land_mask;
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231 | close(h);
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232 | %}}}
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233 | %work on ocean, glaciers and ice: {{{
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234 | %ocean: opposite of land:
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235 | md.mask.ocean_levelset=-md.mask.land_levelset;
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236 |
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237 | %initliaze:
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238 | md.mask.ice_levelset=ones(md.mesh.numberofvertices,1);
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239 |
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240 | %grounded ice:
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241 | md.mask.groundedice_levelset=-ones(md.mesh.numberofvertices,1);
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242 |
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243 | % }}}
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244 | %}}}
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245 | %slr loading/calibration: {{{
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246 |
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247 | md.slr.sealevel=zeros(md.mesh.numberofvertices,1);
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248 | md.slr.spcthickness=NaN*ones(md.mesh.numberofvertices,1);
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249 | md.slr.Ngia=zeros(md.mesh.numberofvertices,1);
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250 | md.slr.Ugia=zeros(md.mesh.numberofvertices,1);
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251 |
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252 | md.dsl.global_average_thermosteric_sea_level_change=[0;0];
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253 | %md.slr.steric_rate=(1.1+.38)*ones(md.mesh.numberofvertices,1); %steric + water storage.
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254 | md.dsl.sea_surface_height_change_above_geoid=zeros(md.mesh.numberofvertices+1,1);
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255 | md.dsl.sea_water_pressure_change_at_sea_floor=zeros(md.mesh.numberofvertices+1,1);
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256 | md.slr.hydro_rate = zeros(md.mesh.numberofvertices,1);
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257 |
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258 | %love numbers:
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259 | md.slr.ocean_area_scaling=1;
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260 | %}}}
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261 | %geometry: {{{
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262 | di=md.materials.rho_ice/md.materials.rho_water;
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263 | md.geometry.bed=-ones(md.mesh.numberofvertices,1);
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264 | % }}}
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265 | %materials: {{{
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266 | md.materials=materials('hydro');
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267 | % }}}
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268 | sl.icecaps{ind}=md;
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269 | end
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270 | % }}}
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271 |
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272 | %Assemble Earth in 3D {{{
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273 |
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274 | %parameters:
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275 | plotting=1;
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276 | tolerance=100;
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277 | loneedgesdetect=0;
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278 |
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279 | %create earth model by concatenating all the icecaps in 3d:
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280 | sl.caticecaps('tolerance',tolerance,'loneedgesdetect',loneedgesdetect);
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281 |
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282 | error;
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283 |
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284 | %figure out how each icecap's mesh connects to the larger earth mesh:
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285 | sl.intersections();
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286 |
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287 | %figure out connectivity:
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288 | disp('Mesh connectivity');
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289 | sl.earth.mesh.vertexconnectivity=NodeConnectivity(sl.earth.mesh.elements,sl.earth.mesh.numberofvertices);
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290 |
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291 | %areas:
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292 | disp('Mesh nodal areas');
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293 | sl.earth.mesh.area=averaging(sl.earth,GetAreas3DTria(sl.earth.mesh.elements,sl.earth.mesh.x,sl.earth.mesh.y,sl.earth.mesh.z),4);
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294 |
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295 | %transfer a list of fields from each icecap and continent back to Earth:
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296 | sl.transfer('mask.groundedice_levelset');
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297 | sl.transfer('mask.ice_levelset');
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298 | sl.transfer('mask.ocean_levelset');
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299 | sl.transfer('mask.land_levelset');
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300 | sl.transfer('mask.glacier_levelset');
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301 | sl.transfer('geometry.thickness');
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302 | sl.transfer('geometry.surface');
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303 | sl.transfer('geometry.base');
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304 | sl.transfer('geometry.bed');
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305 | sl.transfer('initialization.temperature');
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306 | sl.transfer('materials.rheology_B');
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307 | sl.transfer('mesh.lat');
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308 | sl.transfer('mesh.long');
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309 | sl.transfer('slr.deltathickness');
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310 | sl.transfer('slr.Ngia');
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311 | sl.transfer('slr.Ugia');
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312 |
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313 | %radius:
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314 | sl.earth.mesh.r=sqrt(sl.earth.mesh.x.^2+sl.earth.mesh.y.^2+sl.earth.mesh.z.^2);
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315 |
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316 | %check on the mesh transitions: {{{
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317 | if plotting,
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318 | flags=ones(sl.earth.mesh.numberofvertices,1);
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319 | for i=1:length(sl.transitions),
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320 | flags(sl.transitions{i})=i;
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321 | end
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322 | plotmodel(sl.earth,'data',flags,'shading','faceted','coastline','on','coast_color','g')
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323 | end
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324 | %}}}}
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325 |
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326 | % }}}
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327 | error;
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328 | %Solve Sea-level equation on Earth only: {{{
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329 | md=sl.earth; %we don't do computations on ice sheets or land.
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330 |
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331 | %elastic loading from love numbers:
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332 | nlov=1001;
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333 | md.slr.love_h = love_numbers('h'); md.slr.love_h(nlov+1:end)=[];
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334 | md.slr.love_k = love_numbers('k'); md.slr.love_k(nlov+1:end)=[];
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335 | md.slr.love_l = love_numbers('l'); md.slr.love_l(nlov+1:end)=[];
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336 | md.slr.ocean_area_scaling = 0;
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337 |
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338 | %Miscellaneous
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339 | md.miscellaneous.name='test2004';
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340 |
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341 | %New stuff
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342 | md.slr.spcthickness = NaN(md.mesh.numberofvertices,1);
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343 | md.slr.Ngia = zeros(md.mesh.numberofvertices,1);
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344 | md.slr.Ugia = zeros(md.mesh.numberofvertices,1);
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345 |
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346 | %Solution parameters
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347 | md.slr.reltol=NaN;
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348 | md.slr.abstol=1e-3;
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349 | md.slr.geodetic=1;
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350 |
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351 | %eustatic + rigid + elastic run:
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352 | md.slr.rigid=1; md.slr.elastic=1; md.slr.rotation=0;
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353 | md.cluster=generic('name',oshostname(),'np',3);
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354 | %md.verbose=verbose('111111111');
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355 | md=solve(md,'Sealevelrise');
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356 | SnoRotation=md.results.SealevelriseSolution.Sealevel;
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357 |
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358 | %eustatic + rigid + elastic + rotation run:
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359 | md.slr.rigid=1; md.slr.elastic=1; md.slr.rotation=1;
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360 | md.cluster=generic('name',oshostname(),'np',3);
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361 | %md.verbose=verbose('111111111');
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362 | md=solve(md,'Sealevelrise');
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363 | SRotation=md.results.SealevelriseSolution.Sealevel;
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364 |
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365 | %Fields and tolerances to track changes
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366 | field_names ={'noRotation','Rotation'};
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367 | field_tolerances={1e-13,1e-13};
|
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368 | field_values={SnoRotation,SRotation};
|
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369 |
|
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370 | %}}}
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