InitMIP Greenland
From CliC Wiki
CHARACTERISTICS | ARC_PISM_05km | AWI_ISSM1 | AWI_ISSM2 | BCG_BISICLES1 | BCG_BISICLES2 | BCG_BISICLES3 | DMI_PISM0 | DMI_PISM1 | DMI_PISM2 | DMI_PISM3 | DMI_PISM4 | ILTS_PIK_SICOPOLIS1 | ILTS_SICOPOLIS1 | IMAU_IMAUICE20 | IMAU_IMAUICE10 | IMAU_IMAUICE05 | JPL1_ISSM2 | LANL_CISM | LGGE_ELMER | LGGE_ELMER2 | LSCE_GRISLI | MIROC_ICIES00 | MIROC_ICIES01 | MPI_PISM0INITMIP | UAF_PISM151 | UAF_PISM152 | UAF_PISM301 | UAF_PISM302 | UAF_PISM451 | UAF_PISM452 | UCIJPL_ISSM | ULB_FETISH1 | ULB_FETISH2 | VUB_GISMHOM | VUB_GISMSIA |
Numerical Method | Finite difference, rectangular grid. | Triangular Finite Element, Arbitrary Lagrangian/Eulerian | Triangular Finite Element, Arbitrary Lagrangian/Eulerian | Finite Volume with adaptive mesh refinement | Finite Volume with adaptive mesh refinement | Finite Volume with adaptive mesh refinement | Finite difference method | Finite difference method | Finite difference method | Finite difference method | Finite difference method | Finite difference method | Finite Difference | Finite difference de Boer et al., 2014 | Finite difference de Boer et al., 2014 | Finite difference de Boer et al., 2014 | Finite Element (triangular P1), Arbitrary Lagrangian-Eulerian | Finite Element (square/hexahedral) for velocity, Finite Volume for transport | Triangular Finite Element | Triangular Finite Element | Finite Difference | Finite Difference | Finite Difference | Finite Difference | Finite Difference | Finite Difference | Finite Difference | Finite Difference | Finite Difference | Finite Difference | Finite Element | Finite difference staggered grid (Pattyn, F,2016) | Finite difference staggered grid (Pattyn, F,2016) | Finite Difference, Alternating-Direction-Implicit | Finite Difference, Alternating-Direction-Implicit |
Native Grid | 5000 m (horizontal) 20 m (vertical) | H: 2.5-35 km, V: 15 layers | H: 2.5-35 km, V: 15 layers | H: anisotropic, usually 1.2-4.8 km V: 10 layers (thermal only) | H: anisotropic, usually 2.4-4.8 km V: 10 layers (thermal only) | H: anisotropic, usually 4.8 km V: 10 layers (thermal only) | H: 5.0 km V: 10 m | H: 5.0 km V: 10 m | H: 5.0 km V: 10 m | H: 5.0 km V: 10 m | H: 5.0 km V: 10 m | H: 5 km V: 81 layers (terrain-following, concentrating towards the base) | H: 5 km, V: 81 layers | H: 20 km regular grid V: 15 layers (terrain following) | H: 10 km regular grid V: 15 layers (terrain following) | H: 5 km regular grid V: 15 layers (terrain following) | H: 1-15 km, V: N/A (2D model) | H: 4 km, V: 10 layers | H: 1.5-45 km, no vertical layers | H: 1.0-5 km, no vertical layers | H: 5 km, V: 21 layers | H: 10 km, V: 26 layers | H: 10 km, V: 26 layers | H: 5 km, V: 50 m terrain following | H: structured, 1500m;V: equally-spaced, 20m | H: structured, 1500m;V: equally-spaced, 20m | H: structured, 3000m;V: equally-spaced, 20m | H: structured, 3000m;V: equally-spaced, 20m | H: 4500 m; V: 20 m, equal spacing | H: 4500 m; V: 20 m, equal spacing | H: 30 km V: 14 layers | H: 10 km 11 vertical layers of ice temperature | H: 10 km 11 vertical layers of ice temperature | H: 5 km, V: 30 layers | H: 5 km, V: 30 layers |
Native Projection | Bamber et al (2001) | EPSG 3413 | EPSG 3413 | Morlighem et al, 2014 | Morlighem et al, 2014 | Morlighem et al, 2014 | Same as Bamber et al. (2001) | Same as Bamber et al. (2001) | Same as Bamber et al. (2001) | Same as Bamber et al. (2001) | Same as Bamber et al. (2001) | Same as Bamber et al. (2001) | Bamber et al, 2001 | Bamber et al, 2001 | Bamber et al, 2001 | Bamber et al, 2001 | Polar Stereographic (70°N, 45°W) | Bamber DEM (polar stereographic, WGS84) | Bamber et al, 2001 | Bamber et al, 2001 | Bamber et al, 2001 | Not Given | Not Given | Bamber et al, 2001 | EPSG 3413 | EPSG 3413 | EPSG 3413 | EPSG 3413 | EPSG 3413 | EPSG 3413 | EPSG3413 | Bamber et al, 2001 | Bamber et al, 2001 | Polar Stereographic (70°N, 45°W) | Polar Stereographic (70°N, 45°W) |
Interpolation Method to Diagnostic Grid | Regridded at runtime by PISM procedures | First order conservative interpolation | First order conservative interpolation | ISMIP6 Suggested Procedure for output, Matlab TriScatter for SMB & T | ISMIP6 Suggested Procedure for output, Matlab TriScatter for SMB & T | ISMIP6 Suggested Procedure for output, Matlab TriScatter for SMB & T | N/A | N/A | N/A | N/A | N/A | N/A | Same Grid | ISMIP6 suggested procedure | ISMIP6 suggested procedure | ISMIP6 suggested procedure | Linear | First-order conservative | Flux variables: Conservative (remapycon) State variables: Bilinear | Flux variables: Conservative (remapycon) State variables: Bilinear | Same Grid | Not Given | Not Given | Same Grid | ISMIP6 Suggested Procedure | ISMIP6 Suggested Procedure | ISMIP6 Suggested Procedure | ISMIP6 Suggested Procedure | ISMIP6 Suggested Procedure | ISMIP6 Suggested Procedure | Linear | Matlab 2-D Linear interpolation | Matlab 2-D Linear interpolation | ISMIP6 Suggested Procedure | ISMIP6 Suggested Procedure |
Time Step | Adaptive | 0.1a | 0.1a | Adaptive, mean ~ 12.5 days | Adaptive, mean ~ 12.5 days | Adaptive, mean ~ 12.5 days | Adaptive | Adaptive | Adaptive | Adaptive | Adaptive | 0.5 years | 6 months | 1 year | 1 year | 1 year | 2 weeks | 0.2 year | 0.005 year | 0.005 year | Adaptive | 0.125 year | 0.125 year | Adaptive, << 1 year | Adaptive | Adaptive | Adaptive | Adaptive | Adaptive | Adaptive | 1 week | 0.2 year | 0.01 year | 0.01 year | 0.01 year |
Ice Flow Mechanics | Hybrid Bueler and Brown (2009) | HO (Blatter-Pattyn) | HO (Blatter-Pattyn) | SSA, vertical shear retained in nonlinear rheology, Schoof & Hindmarsh, 2010 | SSA, vertical shear retained in nonlinear rheology, Schoof & Hindmarsh, 2010 | SSA, vertical shear retained in nonlinear rheology, Schoof & Hindmarsh, 2010 | Shallow Shelf, Shallow ice | Shallow Shelf, Shallow ice | Shallow Shelf, Shallow ice | Shallow Shelf, Shallow ice | Shallow Shelf, Shallow ice | Shallow ice approximation | SIA | SIA | SIA | SIA | SSA | Depth-integrated HO, Goldberg, 2011 | SSA | SSA | Hybrid SIA-SSA | SIA | SIA | Hybrid SIA-SSA | Hybrid. Bueler and Brown (2009) | Hybrid. Bueler and Brown (2009) | Hybrid. Bueler and Brown (2009) | Hybrid. Bueler and Brown (2009) | Hybrid. Bueler and Brown (2009) | Hybrid. Bueler and Brown (2009) | HO (Blatter-Pattyn) | SIA | Hybrid Shallow-Shelf/Shallow-Ice | HO (Blatter-Pattyn) | SIA |
Basal Sliding | Pseudo-plastic (q=0.6) | u_b|^(s-1) * u_b with r and s equal 1 and Neff=rho_ice*g*H+rho_water*g*z_s | u_b|^(s-1) * u_b with r and s equal 1 and Neff=rho_ice*g*H+rho_water*g*z_s | Linear | Linear | Linear | Weertman Sliding | Weertman Sliding | Weertman Sliding | Weertman Sliding | Weertman Sliding | Weertman sliding law vb ~ τb^p/Nb^q (p = 3, q = 2) with sub-melt sliding Calov and Hutter, 1996 Greve & Herzfeld, 2013 | Weertman sliding, Greve & Herzfeld, 2013 | Weertman sliding law (m=3) | Weertman sliding law (m=3) | Weertman sliding law (m=3) | Viscous sliding | Pseudo-plastic (q = 0.5) | Weertman sliding (m = 1) | Weertman sliding (m = 1) | Not Given | Weertman sliding (m = 3) | Weertman sliding (m = 3) | Weertman sliding (m = 4) | Pseudo-plastic (q=0.33) | Pseudo-plastic (q=0.33) | Pseudo-plastic (q=0.33) | Pseudo-plastic (q=0.33) | Pseudo-plastic (q=0.33) | Pseudo-plastic (q=0.33) | Linear | Weertman sliding (m = 2) | Weertman sliding (m = 2) | Weertman sliding (m = 3), Local approach to basal shear stress, lubrication by meltwater parameterized Furst et al, 2013 and 2015 | Weertman sliding (m = 3), lubrication by meltwater parameterized Furst et al, 2013 and 2015 |
Thermodynamics | Not Given | Enthalpy (Aschwanden et al, 2013) | Enthalpy (Aschwanden et al, 2013) | Thermomechanical | Thermomechanical | Thermomechanical | Not Given | Not Given | Not Given | Not Given | Not Given | Not Given | Thermomechanical | Not Given | Not Given | Not Given | Thermomechanical | Thermomechanical | None; Fixed viscosities from SICOPOLIS | None; Fixed viscosities from SICOPOLIS | Thermomechanical | Thermomechanical | Thermomechanical | Enthalpy (Aschwanden et al, 2013) | Not Given | Not Given | Not Given | Not Given | Not Given | Not Given | Thermomechanical | Not Given | Not Given | Thermomechanical | Thermomechanical |
Basal Hydrology | Basal meltwater calculated and used in substrate cohesion calculation. No routing of meltwater though. Bueler and van Pelt (2015) | None | None | None | None | None | Local | Local | Local | Local | Local | None | None | None | None | None | None | None | None | None | Darcian, from Peyaud, 2006 | None | None | Local storage only | " ‘null’ model, locally produced basal meltwater can reduce the yield stress. Bueler and van Pelt (2015)" | " ‘null’ model, locally produced basal meltwater can reduce the yield stress. Bueler and van Pelt (2015)" | " ‘null’ model, locally produced basal meltwater can reduce the yield stress. Bueler and van Pelt (2015)" | " ‘null’ model, locally produced basal meltwater can reduce the yield stress. Bueler and van Pelt (2015)" | " ‘null’ model, locally produced basal meltwater can reduce the yield stress. Bueler and van Pelt (2015)" | " ‘null’ model, locally produced basal meltwater can reduce the yield stress. Bueler and van Pelt (2015)" | None | None | None | None | None |
Ice Shelves | Yes | Yes | Yes | Yes Thickness-based melting parameterization | Yes Thickness-based melting parameterization | Yes Thickness-based melting parameterization | Yes | Yes | Yes | Yes | Yes | No | No | No | No | No | Yes Observed melt rates | No | Yes | Yes | Yes | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | No | No | No |
Advance and Retreat | Grounding line can migrate freely. | Freely evolving grounding line fixed position of calving front and grounded ice margin | Freely evolving grounding line fixed position of calving front | Freely evolving grounded ice margin, grounding line, and calving front after initialization | Freely evolving grounded ice margin, grounding line, and calving front after initialization | Freely evolving grounded ice margin, grounding line, and calving front after initialization | Freely evolving grounded ice margin, grounding line, and calving front after initialization | Freely evolving grounded ice margin, grounding line, and calving front after initialization | Freely evolving grounded ice margin, grounding line, and calving front after initialization | Freely evolving grounded ice margin, grounding line, and calving front after initialization | Freely evolving grounded ice margin, grounding line, and calving front after initialization | Freely evolving grounded ice margin | Freely evolving grounded ice margin, limited to present-day extent | Freely evolving grounded ice margin to prescribed present day coast mask. | Freely evolving grounded ice margin to prescribed present day coast mask. | Freely evolving grounded ice margin to prescribed present day coast mask. | Freely evolving grounding line | Freely evolving grounded ice margin | Freely evolving grounded ice margin and grounding line Fixed calving front | Freely evolving grounded ice margin and grounding line Fixed calving front | Freely evolving grounded ice margin, grounding line, and calving front | Retreat only | Free | Freely evolving grounded ice margin, grounding line, and calving front | Freely evolving grounded ice margin, grounding line, and calving front; retreat only for calving front | Freely evolving grounded ice margin, grounding line, and calving front; retreat only for calving front | Freely evolving grounded ice margin, grounding line, and calving front; retreat only for calving front | Freely evolving grounded ice margin, grounding line, and calving front; retreat only for calving front | Freely evolving grounded ice margin, grounding line, and calving front; retreat only for calving front | Freely evolving grounded ice margin, grounding line, and calving front; retreat only for calving front | Freely evolving grounding line, Fixed Calving front | Free evolving grounded ice margin, grounding line, and calving front in forward run. Fixed position in intialization run. | Free evolving grounded ice margin, grounding line, and calving front in forward run. Fixed position in intialization run. | Freely evolving grounded ice margin | Freely evolving grounded ice margin |
Grounding Line Determination | Sub-grid scheme (Feldmann et al., 2014) used to interpolate surface gradients and driving stress, but NOT basal melt | Subelement migration | Subelement migration | Flotation | Flotation | Flotation | Flotation | Flotation | Flotation | Flotation | Flotation | N/A | N/A | floating criterion | floating criterion | floating criterion | Floating, sub-element parameterization | Flotation | Flotation | Flotation | Flotation | Flotation | Flotation | Flotation | Subgrid parameterization, Feldmann et al, 2014 | Subgrid parameterization, Feldmann et al, 2014 | Subgrid parameterization, Feldmann et al, 2014 | Subgrid parameterization, Feldmann et al, 2014 | Subgrid parameterization, Feldmann et al, 2014 | Subgrid parameterization, Feldmann et al, 2014 | Subgrid parameterization, Feldmann et al, 2014 | Floating criterion | Floating criterion | N/A | N/A |
Calving | Floating ice that exceeds present-day extent is automatically calved | Fixed position for the calving front (i.e. calving exactly compensates outflow domain margins) | Fixed position for the calving front (i.e. calving exactly compensates outflow domain margins) | Surface crevasse depth, Benn et al, 2007; Nick et al, 2010 | Surface crevasse depth, Benn et al, 2007; Nick et al, 2010 | Surface crevasse depth, Benn et al, 2007; Nick et al, 2010 | At prescribed coast mask, ocean-induced ice discharge parameterized, Furst et al, 2015 | At prescribed coast mask, ocean-induced ice discharge parameterized, Furst et al, 2015 | At prescribed coast mask, ocean-induced ice discharge parameterized, Furst et al, 2015 | At prescribed coast mask, ocean-induced ice discharge parameterized, Furst et al, 2015 | At prescribed coast mask, ocean-induced ice discharge parameterized, Furst et al, 2015 | Sub-grid-scale ice discharge parameterization | No explicit calving | diagnosed as mass transport outside of prescribed coast mask at marine terminating outlet glaciers | diagnosed as mass transport outside of prescribed coast mask at marine terminating outlet glaciers | diagnosed as mass transport outside of prescribed coast mask at marine terminating outlet glaciers | Fixed calving front | All floating ice calves | Fixed position for calving front | Fixed position for calving front | None | All floating ice calves | All floating ice calves | Thickness < 200 m; Stress-based law, Levermann et al, 2012 | Retreat only | Retreat only | Retreat only | Retreat only | Retreat only | Retreat only | None | No calving | No calving | At prescribed coast mask, ocean-induced ice discharge parameterized, Furst et al, 2015 | At prescribed coast mask, ocean-induced ice discharge parameterized, Furst et al, 2015 |
Spin-Up/Initialization Methods | 50 ka with fixed geometry followed by 15 ka with freely-evolving geometry using present-day climatology (Ettema et al., 2009). | Combined: horizontal velocity assimilated, thermo spin-up (MODERN SURFACE TEMP) | Combined: horizontal velocity assimilated, thermo spin-up (PALEO SURFACE TEMP) | Combined: Horizontal velocity assimilation with fixed geometry followed by relaxation of surface | Combined: Horizontal velocity assimilation with fixed geometry followed by relaxation of surface | Combined: Horizontal velocity assimilation with fixed geometry followed by relaxation of surface | Spin up | Spin up | Spin up | Spin up | Spin up | 135 ka Forcing: GRIP δ18O on the GICC05 time scale converted ΔT by conversion factor 2.4°C/‰, 7.3% change precip rate for 1°C of ΔT | Spin-Up (125 ka) with T converted from GRIP delta-18 O records; essentially fixed topography | Steady state spinup with constant, present-day boundary conditions. | Steady state spinup with constant, present-day boundary conditions. | Steady state spinup with constant, present-day boundary conditions. | Combined: Assimilation of present conditions, followed by 50 ka relaxation and historical run | Spin-Up (20 ka) equilibration, starting from present day geometry | Combined: Viscosity from SICOPOLIS Spin-Up; horizontal velocity assimilated | Combined: Viscosity from SICOPOLIS Spin-Up; horizontal velocity assimilated | Combined: horizontal velocity assimilated, followed by 20 ka relaxation spin-up | Combined: Basal sliding matched to observed geometry (Pollard & DeConto, 2012);thermal spin-up to steady state | Spin-Up (125 ka), free evolution, with SeaRISE forcing | Spin-Up (135 ka), free evolution, using SeaRISE temperature index and sea level | Initialization over a glacial cycle combined a short relaxation run | Initialization over a glacial cycle to get the basal conditions and the enthalpy field combined with a relaxation simulation that starts with present-day ice thickness | Initialization over a glacial cycle combined a short relaxation run | Initialization over a glacial cycle to get the basal conditions and the enthalpy field combined with a relaxation simulation that starts with present-day ice thickness | Initialization over a glacial cycle combined a short relaxation run | Initialization over a glacial cycle to get the basal conditions and the enthalpy field combined with a relaxation simulation that starts with present-day ice thickness | Data Assimilation | Model initialization based on Pollard and DeConto (2012b) Hi freq noise smoothed in basal sliding coeff. | Model initialization based on Pollard and DeConto (2012b) Hi freq noise smoothed in basal sliding coeff. | Spin-Up (2 glacial cycles with SIA, 3000 years HO) targeting observed geometry and volumenevolution for 1990-onwards | Spin-Up (2 glacial cycles) forced by T derived from ice core data then(1958-2005) by ECMWF atmosphere |
Initial Surface Mass Balance | From Ettema et al., (2009) | downscaled version RACMO2.3; yearly mean for the period 1979-2014 Noel et al. (2015) (pers. Comm, paper in prep.) | downscaled version RACMO2.3; yearly mean for the period 1979-2014 Noel et al. (2015) (pers. Comm, paper in prep.) | 1997-2006 mean from HIRHAM5 RCM with lateral boundary forcing from ERAI Lucas-Pilcher et al, 2012 | 1997-2006 mean from HIRHAM5 RCM with lateral boundary forcing from ERAI Lucas-Pilcher et al, 2012 | 1997-2006 mean from HIRHAM5 RCM with lateral boundary forcing from ERAI Lucas-Pilcher et al, 2012 | Positive degree day | Positive degree day | Positive degree day | Positive degree day | Positive degree day | Positive degree day | PDD, Greve & Herzfeld, 2013 | RACMO extended to ice free regions with SMB gradient method Helsen et al., 2012 | RACMO extended to ice free regions with SMB gradient method Helsen et al., 2012 | RACMO extended to ice free regions with SMB gradient method Helsen et al., 2012 | SMB reconstruction, Box, 2013 | 1961-1990 RACMO2 climatology, Van Angelen et al, 2013 | 1989-2008 mean from MAR forced by ERAI | 1989-2008 mean from MAR forced by ERAI | 1979-2014 mean from MAR forced by ERAI | From SeaRISE | PDD (Reeh, 1991) | PDD, no temperature lapse rate | RACMO 1960-1990 mean | RACMO 1960-1990 mean | RACMO 1960-1990 mean | RACMO 1960-1990 mean | RACMO 1960-1990 mean | RACMO 1960-1990 mean | RACMO | Constant in time. Based on regional climate model MAR | Constant in time. Based on regional climate model MAR | PDD/retention, different factors for snow vs ice, Janssens & Huybrechts, 2000 | PDD/retention, different factors for snow vs ice, Janssens & Huybrechts, 2000 |
Year(s) of Initial Condition | 2000 | 2000 | 2000 | 1997-2006 | 1997-2006 | 1997-2006 | 2000 | 2000 | 2000 | 2000 | 2000 | 1990 | 1990 | 1990 | 1990 | 1990 | 2012 | 1961-1990 | 2000-2010 | 2000-2010 | 2000 | 2004 | 2004 | ~2006 | ~2007 | ~2007 | ~2007 | ~2007 | ~2007 | ~2007 | 2007 | Not Given | Not Given | 2005 | 2005 |
Forward Experiment Duration | 100 years | 100 years | 100 years | 100 years | 100 years | 100 years | 300 a | 300 a | 300 a | 300 a | 300 a | 100 years | 100 years | 100 years | 100 years | 100 years | 100 years | 100 years | 100 years | 100 years | 200 years | 100 years | 100 years | 300 years | 100 years | 100 years | 100 years | 100 years | 100 years | 100 years | 100 a | 100 years | 100 years | 100 years | 100 years |
Parameter Values | rho_i= 910kg m^(-3) rho_w= 1000kg m^(-3) g = 9.81 m s^(-2) | rho_i = 917 kg m^(-3); rho_sw = 1027 kg m^(-3); g = 9.81 m s^(-2); beta = 7.9e-8 kPa^(-1) | rho_i = 917 kg m^(-3); rho_sw = 1027 kg m^(-3); g = 9.81 m s^(-2); beta = 7.9e-8 kPa^(-1) | rho_i = 917 kg m^(-3); rho_sw = 1023 kg m^(-3); g = 9.81 m s^(-2) | rho_i = 917 kg m^(-3); rho_sw = 1023 kg m^(-3); g = 9.81 m s^(-2) | rho_i = 917 kg m^(-3); rho_sw = 1023 kg m^(-3); g = 9.81 m s^(-2) | ρi = 910 kg m^(-3) ρw = 1000 kg m^(-3) g = 9.81 m s^(-2) | rho_i = 910 kg m^(-3); rho_fw = 1000 kg m^(-3); g = 9.81 m s^(-2) | rho_i= 910kg m^(-3) rho_w= 1000kg m^(-3) g = 9.81 m s^(-2) | rho_i= 910kg m^(-3) rho_w= 1000kg m^(-3) g = 9.81 m s^(-2) | rho_i= 910kg m^(-3) rho_w= 1000kg m^(-3) g = 9.81 m s^(-2) | rho_i = 917 kg m^(-3); rho_sw = 1023 kg m^(-3); rho_fw = 1000 kg m^(-3); g = 9.8 m s^(-2) | rho_i = 917 kg m^(-3); rho_sw = 1026 kg m^(-3); g = 9.81 m s^(-2); c_i = 2117 J/kg/deg; L_i = 337,500 J/kg | rho_i = 910 kg m^(-3); rho_sw = 1028 kg m^(-3); g = 9.81 m s^(-2) | rho_i = 910 kg m^(-3); rho_sw = 1028 kg m^(-3); g = 9.81 m s^(-2) | rho_i = 918 kg m^(-3); rho_fw = 1000 kg m^(-3); g = 9.81 m s^(-2) | rho_i = 910 kg m^(-3); rho_sw = 1028 kg m^(-3); g = 9.81 m s^(-2) | rho_i = 910 kg m^(-3); rho_sw = 1028 kg m^(-3); g = 9.81 m s^(-2) | rho_i = 910 kg m^(-3); rho_fw = 1000 kg m^(-3); g = 9.81 m s^(-2) | rho_i = 910 kg m^(-3); rho_fw = 1000 kg m^(-3); g = 9.81 m s^(-2) | rho_i = 910 kg m^(-3); rho_fw = 1000 kg m^(-3); g = 9.81 m s^(-2) | rho_i = 910 kg m^(-3); rho_fw = 1000 kg m^(-3); g = 9.81 m s^(-2) | rho_i = 910 kg m^(-3); rho_fw = 1000 kg m^(-3); g = 9.81 m s^(-2) | rho_i = 910 kg m^(-3); rho_fw = 1000 kg m^(-3); g = 9.81 m s^(-2) | rho_i = 910 kg m^(-3); rho_fw = 1000 kg m^(-3); g = 9.81 m s^(-2) | rho_i = 910 kg m^(-3); rho_fw = 1028 kg m^(-3); g = 9.81 m s^(-2) | rho_i = 910 kg m^(-3); rho_fw = 1028 kg m^(-3); g = 9.81 m s^(-2) | rho_i = 910 kg m^(-3); rho_fw = 1000 kg m^(-3); g = 9.81 m s^(-2) | rho_i = 910 kg m^(-3); rho_fw = 1000 kg m^(-3); g = 9.81 m s^(-2) | ||||||
Data Sets Used | Geothermal heat flux (Shapiro and Ritzwoller, 2004). | Velocity: Rignot & Mouginot, 2012 Bed: Morlighem et al, 2014 with fill-in from Bamber et al, 2013 Geo Heat Flux: Shapiro & Ritzwoller, 2004 | temperature time series: SeaRISE webpage present-day climate: Fausto et al (2009) RACMO2.3: B. Noel (not published yet) Geo Heat Flux: Shapiro & Ritzwoller, 2004 | Velocity: Rignot & Mouginot, 2012 Geometry: Morlighem et al, 2014 Temperature (initialization): Price et al, 2011 | Velocity: Rignot & Mouginot, 2012 Geometry: Morlighem et al, 2014 Temperature (initialization): Price et al, 2011 | Velocity: Rignot & Mouginot, 2012 Geometry: Morlighem et al, 2014 Temperature (initialization): Price et al, 2011 | Geo Heat Flux: Shapiro & Ritzwoller, 2004 | Geo Heat Flux: Shapiro & Ritzwoller, 2004 | Geo Heat Flux: Shapiro & Ritzwoller, 2004 | Geo Heat Flux: Shapiro & Ritzwoller, 2004 | Geo Heat Flux: Shapiro & Ritzwoller, 2004 | Bed: Bamber et al., 2013 Geo Heat Flux:M. Purucker (personalcommunication 2012) following the technique by Fox Maule et al., 2005 | Velocity: N/A Bed: Herzfeld et al, 2012 Geo Heat Flux: Greve, 2005 | Geo Heat Flux: Shapiro & Ritzwoller, 2004 | Geo Heat Flux: Shapiro & Ritzwoller, 2004 | Geo Heat Flux: Shapiro & Ritzwoller, 2004 | Velocity: Rignot & Mouginot, 2012 Geometry: Morlighem et al, 2014 Geo Heat Flux: Shapiro & Ritzwoller, 2004 | None | Velocity: MEaSUREs 2000-2008 Bed: Morlighem et al, 2015 (BedMachine)with fill-in from Bamber et al, 2013 | Velocity: MEaSUREs 2000-2008 Bed: Morlighem et al, 2015 (BedMachine)with fill-in from Bamber et al, 2013 | Velocity: Joughin et al, 2010 Bed/Surface: Bamber et al, 2013 Geo Heat Flux: Fox Maule et al, 2005 | Not Given | Not Given | All from SeaRISE reference data set | Geo Heat Flux: Shapiro & Ritzwoller, 2004 | Geo Heat Flux: Shapiro & Ritzwoller, 2004 | Geo Heat Flux: Shapiro & Ritzwoller, 2004 | Geo Heat Flux: Shapiro & Ritzwoller, 2004 | Geo Heat Flux: Shapiro & Ritzwoller, 2004 | Geo Heat Flux: Shapiro & Ritzwoller, 2004 | Geo Heat Flux: Shapiro & Ritzwoller, 2004 Velocity: Rignot & Mouginot, 2012 Bed: Morlighem et al, 2014 | None | None | Velocity: Joughin et al, 2010 Geometry: Bamber et al, 2013 Geo Heat Flux: Shapiro & Ritzwoller, 2004, adjusted by ice core data | Velocity: Joughin et al, 2010 Geometry: Bamber et al, 2013 Geo Heat Flux: Shapiro & Ritzwoller, 2004, adjusted by ice core data |
Requested Variables Not Submitted | Fractional areas not available. | tendlibmassbf: no output available | tendlibmassbf: no output available | Geo heat flux (not used), Surface & basal T (fixed inputs), Calving flux (not available without model modification) | Geo heat flux (not used), Surface & basal T (fixed inputs), Calving flux (not available without model modification) | Geo heat flux (not used), Surface & basal T (fixed inputs), Calving flux (not available without model modification) | None | licalvf and tendlicalyf are dummy values (no explicit calving rate) | None | None | None | Calving flux (not computed), vertical velocity, basal temperature (2D model) | None | hfgeoubed, libmassbf, litempsnic, litempbot (no thermal calculations) uvelsurf, vvelsurf, wvelsurf, uvelbase, vvelbase, wvelbase (SSA is depth averaged) licalvf (interpolation TBD) | hfgeoubed, libmassbf, litempsnic, litempbot (no thermal calculations) uvelsurf, vvelsurf, wvelsurf, uvelbase, vvelbase, wvelbase (SSA is depth averaged) licalvf (interpolation TBD) | basal/surface vertical velocities, basal mass balance flux, calving flux (not calculated); land ice/grounded ice/ floating ice fractions (not used by model); limnsw, iareaf, tendlibmassbf, tendlicalvf (not calculated) | licalvf, strbasemag, uvelmean, vvelmean,hfgeoubed; to be included in final | licalvf, strbasemag, uvelmean, vvelmean,hfgeoubed; to be included in final | None | applied_land_ice_surface_specific_mass_balance_flux (requires changes to the PISM code base) | applied_land_ice_surface_specific_mass_balance_flux (requires changes to the PISM code base) | applied_land_ice_surface_specific_mass_balance_flux (requires changes to the PISM code base) | applied_land_ice_surface_specific_mass_balance_flux (requires changes to the PISM code base) | applied_land_ice_surface_specific_mass_balance_flux (requires changes to the PISM code base) | applied_land_ice_surface_specific_mass_balance_flux (requires changes to the PISM code base) | Libmassbf (no basal melting is considered) wvelsurf/base/mean (velocity is vertical integrated) licalvf (no calving in the model) tendlibmassbf (no basal melting) tendlicalvf (no calving) | Libmassbf (no basal melting is considered) wvelsurf/base/mean (velocity is vertical integrated) licalvf (no calving in the model) tendlibmassbf (no basal melting) tendlicalvf (no calving) | None | None | ||||||
Other Comments | 5-year flux averages calculated for most of the requested variables, except basal melt and dHdt. | None | None | 2D output files grouped by year, not variable | 2D output files grouped by year, not variable | 2D output files grouped by year, not variable | Flux variables averaged offline (post-processing of model output) over all native time steps for yearly scalar output and for 5-year periods for 2D fields. | Flux variables averaged offline (post-processing of model output) over all native time steps for yearly scalar output and for 5-year periods for 2D fields. | None | None | None | None | None | None | None | Please clarify tendacabf definition | None | None | Full SMB model in progress, new set of runs to be submitted | None | None | None | None | None | None | None | None | The model includes a parameterization for basal lubrication linked to basal meltwater discharge and a parameterization for ocean-induced ice discharge at marine margins | The model includes a parameterization for basal lubrication linked to basal meltwater discharge and a parameterization for ocean-induced ice discharge at marine margins |