1 | md=triangle(model(),'../Exp/Square.exp',150000);
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2 | md=setmask(md,'all','');
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3 | md=parameterize(md,'../Par/SquareShelf.par');
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4 | md.materials=matdamageice();
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5 | md.materials.rheology_B=paterson(md.initialization.temperature);
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6 | md.materials.rheology_n=3.*ones(md.mesh.numberofelements,1);
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7 | md.materials.rheology_Z=0.5*ones(md.mesh.numberofvertices,1);
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8 | md=setflowequation(md,'macayeal','all');
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9 |
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10 | %control parameters
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11 | md.inversion.iscontrol=1;
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12 | md.inversion.control_parameters={'MaterialsRheologyZbar'};
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13 | md.inversion.min_parameters=10^-13*ones(md.mesh.numberofvertices,1);
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14 | md.inversion.max_parameters=ones(md.mesh.numberofvertices,1);
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15 | md.inversion.nsteps=2;
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16 | md.inversion.cost_functions=101.*ones(md.inversion.nsteps,1);
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17 | md.inversion.cost_functions_coefficients=ones(md.mesh.numberofvertices,1);
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18 | md.inversion.gradient_scaling=0.9*ones(md.inversion.nsteps,1);
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19 | md.inversion.maxiter_per_step=2.*ones(md.inversion.nsteps,1);
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20 | md.inversion.step_threshold=0.99*ones(md.inversion.nsteps,1);
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21 | md.inversion.vx_obs=md.initialization.vx;
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22 | md.inversion.vy_obs=md.initialization.vy;
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23 |
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24 | md.cluster=generic('name',oshostname(),'np',3);
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25 | md=solve(md,DiagnosticSolutionEnum());
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26 |
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27 | %Fields and tolerances to track changes
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28 | field_names ={'Gradient' 'Misfits' 'MaterialsRheologyZbar' 'Pressure' 'Vel' 'Vx' 'Vy'};
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29 | field_tolerances={1e-12,1e-12,1e-12,1e-12,1e-12,1e-12,1e-12,1e-12,1e-12,1e-12};
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30 | field_values={...
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31 | (md.results.DiagnosticSolution.Gradient1),...
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32 | (md.results.DiagnosticSolution.J),...
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33 | (md.results.DiagnosticSolution.MaterialsRheologyZbar),...
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34 | (md.results.DiagnosticSolution.Pressure),...
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35 | (md.results.DiagnosticSolution.Vel),...
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36 | (md.results.DiagnosticSolution.Vx),...
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37 | (md.results.DiagnosticSolution.Vy)
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38 | };
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