[23769] | 1 | %ISMIP6 BASAL FORCINGS class definition
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| 2 | %
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| 3 | % Usage:
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| 4 | % basalforcingsismip6=basalforcingsismip6();
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| 5 |
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| 6 | classdef basalforcingsismip6
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| 7 | properties (SetAccess=public)
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[23777] | 8 | num_basins = 0;
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[23769] | 9 | basin_id = NaN;
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| 10 | gamma_0 = 0.;
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| 11 | tf = NaN;
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[23777] | 12 | tf_depths = NaN;
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[23769] | 13 | delta_t = NaN;
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[23906] | 14 | islocal = 0;
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[23769] | 15 | geothermalflux = NaN;
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| 16 | groundedice_melting_rate = NaN;
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[24044] | 17 | melt_anomaly = NaN;
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[23769] | 18 | end
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| 19 | methods
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| 20 | function self = extrude(self,md) % {{{
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| 21 | self.basin_id=project3d(md,'vector',self.basin_id,'type','element','layer',1);
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[24010] | 22 | %self.tf=project3d(md,'vector',self.tf,'type','element','layer',1);
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| 23 | %self.delta_t=project3d(md,'vector',self.delta_t,'type','element','layer',1);
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| 24 | self.tf=project3d(md,'vector',self.tf,'type','node');
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[23769] | 25 | self.geothermalflux=project3d(md,'vector',self.geothermalflux,'type','element','layer',1); %bedrock only gets geothermal flux
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| 26 | self.groundedice_melting_rate=project3d(md,'vector',self.groundedice_melting_rate,'type','node','layer',1);
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[24044] | 27 | self.melt_anomaly=project3d(md,'vector',self.melt_anomaly,'type','element','layer',1); %bedrock only gets geothermal flux
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[23769] | 28 | end % }}}
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[23777] | 29 | function self = basalforcingsismip6(varargin) % {{{
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[23769] | 30 | switch nargin
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| 31 | case 0
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| 32 | self=setdefaultparameters(self);
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| 33 | case 1
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| 34 | self=setdefaultparameters(self);
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| 35 | self=structtoobj(self,varargin{1});
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| 36 | otherwise
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| 37 | error('constructor not supported');
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| 38 | end
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| 39 | end % }}}
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| 40 | function self = initialize(self,md) % {{{
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| 41 | if self.gamma_0 == 0,
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| 42 | self.gamma_0 = 14477;
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| 43 | disp(' no basalforcings.gamma_0 specified: value set to 14477 m/yr');
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| 44 | end
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| 45 | if isnan(self.groundedice_melting_rate),
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| 46 | self.groundedice_melting_rate=zeros(md.mesh.numberofvertices,1);
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| 47 | disp(' no basalforcings.groundedice_melting_rate specified: values set as zero');
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| 48 | end
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| 49 |
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| 50 | end % }}}
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| 51 | function self = setdefaultparameters(self) % {{{
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| 52 | self.gamma_0 = 14477; %m/yr
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[23906] | 53 | self.islocal = false;
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[23769] | 54 | end % }}}
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| 55 | function md = checkconsistency(self,md,solution,analyses) % {{{
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| 56 |
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[23777] | 57 | md = checkfield(md,'fieldname','basalforcings.num_basins','numel',1,'NaN',1,'Inf',1,'>',0);
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| 58 | md = checkfield(md,'fieldname','basalforcings.basin_id','Inf',1,'>=',0,'<=',md.basalforcings.num_basins,'size',[md.mesh.numberofelements 1]);
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| 59 | md = checkfield(md,'fieldname','basalforcings.gamma_0','numel',1,'NaN',1,'Inf',1,'>',0);
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| 60 | md = checkfield(md,'fieldname','basalforcings.tf_depths','NaN',1,'Inf',1);
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[26744] | 61 | md = checkfield(md,'fieldname','basalforcings.delta_t','NaN',1,'Inf',1,'numel',md.basalforcings.num_basins,'size',[1,md.basalforcings.num_basins]);
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[23906] | 62 | md = checkfield(md,'fieldname','basalforcings.islocal','values',[0 1]);
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[23777] | 63 | md = checkfield(md,'fieldname','basalforcings.geothermalflux','NaN',1,'Inf',1,'>=',0,'timeseries',1);
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| 64 | md = checkfield(md,'fieldname','basalforcings.groundedice_melting_rate','NaN',1,'Inf',1,'timeseries',1);
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[24044] | 65 | if length(md.basalforcings.melt_anomaly)>1,
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| 66 | md = checkfield(md,'fieldname','basalforcings.melt_anomaly','NaN',1,'Inf',1,'timeseries',1);
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| 67 | end
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[23769] | 68 |
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[23781] | 69 | md = checkfield(md,'fieldname','basalforcings.tf','size',[1,1,numel(md.basalforcings.tf_depths)]);
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| 70 | for i=1:numel(md.basalforcings.tf_depths)
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| 71 | md = checkfield(md,'fieldname',['basalforcings.tf{' num2str(i) '}'],'field',md.basalforcings.tf{i},'size',[md.mesh.numberofvertices+1 NaN],'NaN',1,'Inf',1,'>=',0,'timeseries',1);
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| 72 | end
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| 73 |
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[23769] | 74 | end % }}}
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| 75 | function disp(self) % {{{
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| 76 | disp(sprintf(' ISMIP6 basal melt rate parameterization:'));
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[23777] | 77 | fielddisplay(self,'num_basins','number of basins the model domain is partitioned into [unitless]');
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[23769] | 78 | fielddisplay(self,'basin_id','basin number assigned to each node (unitless)');
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| 79 | fielddisplay(self,'gamma_0','melt rate coefficient (m/yr)');
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[23777] | 80 | fielddisplay(self,'tf_depths','Number of vertical layers in ocean thermal forcing dataset');
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[23769] | 81 | fielddisplay(self,'tf','thermal forcing (ocean temperature minus freezing point) (degrees C)');
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| 82 | fielddisplay(self,'delta_t','Ocean temperature correction per basin (degrees C)');
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[23906] | 83 | fielddisplay(self,'islocal','boolean to use the local version of the ISMIP6 melt rate parameterization (default false)');
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[23769] | 84 | fielddisplay(self,'geothermalflux','geothermal heat flux (W/m^2)');
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| 85 | fielddisplay(self,'groundedice_melting_rate','basal melting rate (positive if melting) (m/yr)');
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[24044] | 86 | fielddisplay(self,'melt_anomaly','floating ice basal melt anomaly (m/yr)');
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[23769] | 87 |
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| 88 | end % }}}
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| 89 | function marshall(self,prefix,md,fid) % {{{
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| 90 |
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| 91 | yts=md.constants.yts;
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| 92 |
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[23781] | 93 | WriteData(fid,prefix,'name','md.basalforcings.model','data',7,'format','Integer');
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[23777] | 94 | WriteData(fid,prefix,'object',self,'fieldname','num_basins','format','Integer');
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[23769] | 95 | WriteData(fid,prefix,'object',self,'fieldname','basin_id','data',self.basin_id-1,'name','md.basalforcings.basin_id','format','IntMat','mattype',2); %0-indexed
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[23799] | 96 | WriteData(fid,prefix,'object',self,'fieldname','gamma_0','format','Double','scale',1./yts);
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[23781] | 97 | WriteData(fid,prefix,'object',self,'fieldname','tf_depths','format','DoubleMat','name','md.basalforcings.tf_depths');
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| 98 | WriteData(fid,prefix,'object',self,'fieldname','tf','format','MatArray','name','md.basalforcings.tf','timeserieslength',md.mesh.numberofvertices+1,'yts',md.constants.yts);
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[23769] | 99 | WriteData(fid,prefix,'object',self,'fieldname','delta_t','format','DoubleMat','name','md.basalforcings.delta_t','timeserieslength',md.mesh.numberofvertices+1,'yts',md.constants.yts);
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[23906] | 100 | WriteData(fid,prefix,'object',self,'fieldname','islocal','format','Boolean');
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[23769] | 101 | WriteData(fid,prefix,'object',self,'fieldname','geothermalflux','format','DoubleMat','name','md.basalforcings.geothermalflux','mattype',1,'timeserieslength',md.mesh.numberofelements+1,'yts',md.constants.yts);
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| 102 | WriteData(fid,prefix,'object',self,'fieldname','groundedice_melting_rate','format','DoubleMat','mattype',1,'scale',1./yts,'timeserieslength',md.mesh.numberofvertices+1,'yts',md.constants.yts);
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[24044] | 103 | WriteData(fid,prefix,'object',self,'fieldname','melt_anomaly','format','DoubleMat','mattype',1,'scale',1./yts,'timeserieslength',md.mesh.numberofvertices+1,'yts',md.constants.yts);
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[23769] | 104 |
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| 105 | end % }}}
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| 106 | end
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| 107 | end
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