| 9 |
|
|
| 10 |
%% a set of pre-configured numerical experiments |
%% a set of pre-configured numerical experiments |
| 11 |
|
|
| 12 |
The full MITgcm distribution comes with a set of pre-configured numerical experiments. |
The full MITgcm distribution comes with a set of pre-configured |
| 13 |
Some of these example experiments are tests of individual parts of the model code, but many |
numerical experiments. Some of these example experiments are tests of |
| 14 |
are fully fledged numerical simulations. Full tutorials exist for a few of the examples, |
individual parts of the model code, but many are fully fledged |
| 15 |
and are documented in sections \ref{sect:eg-baro} - \ref{sect:eg-tank}. The other examples |
numerical simulations. Full tutorials exist for a few of the examples, |
| 16 |
follow the same general structure as the tutorial examples. However, they only include brief |
and are documented in sections \ref{sect:eg-baro} - |
| 17 |
instructions in a text file called {\it README}. The examples are located in subdirectories |
\ref{sect:eg-tank}. The other examples follow the same general |
| 18 |
under the directory \texttt{verification}. Each example is briefly described below. |
structure as the tutorial examples. However, they only include brief |
| 19 |
|
instructions in a text file called {\it README}. The examples are |
| 20 |
|
located in subdirectories under the directory \texttt{verification}. |
| 21 |
|
Each example is briefly described below. |
| 22 |
|
|
| 23 |
\subsection{Full list of model examples} |
\subsection{Full list of model examples} |
| 24 |
|
|
| 25 |
\begin{enumerate} |
\begin{enumerate} |
| 26 |
|
|
| 27 |
\item \texttt{tutorial\_barotropic\_gyre} |
\item \texttt{tutorial\_advection\_in\_gyre} - test of various |
| 28 |
|
advection schemes in a single-layer double-gyre experiment. |
| 29 |
\item \texttt{tutorial\_barotropic\_gyre} - single layer, ocean double gyre |
This experiment is described in detail in section |
| 30 |
(barotropic with free-surface). This experiment is described in detail in section |
\ref{sect:eg-adv-gyre}. |
| 31 |
\ref{sect:eg-baro}. |
|
| 32 |
|
\item \texttt{tutorial\_baroclinic\_gyre} - Four layer, ocean double |
| 33 |
\item \texttt{tutorial\_baroclinic\_gyre} - Four layer, ocean double gyre. This experiment |
gyre. This experiment is described in detail in section |
| 34 |
is described in detail in section \ref{sect:eg-fourlayer}. |
\ref{sect:eg-fourlayer}. |
| 35 |
|
|
| 36 |
\item \texttt{tutorial\_global\_oce\_latlon} - 4x4 degree global ocean simulation with steady |
\item \texttt{tutorial\_barotropic\_gyre} - single layer, ocean double |
| 37 |
climatological forcing. This experiment is described in detail in section \ref{sect:eg-global}. |
gyre (barotropic with free-surface). |
| 38 |
|
This experiment is described in detail in section \ref{sect:eg-baro}. |
| 39 |
\item \texttt{exp4} - Flow over a Gaussian bump in open-water or channel with open boundaries. |
|
| 40 |
|
\item \texttt{tutorial\_cfc\_offline} Offline form of the MITgcm to |
| 41 |
\item \texttt{tutorial\_deep\_convection} - Inhomogenously forced ocean convection in a |
study advection of a passive tracer and CFCs. |
| 42 |
doubly periodic box. This experiment is described in detail in section \ref{sect:eg-bconv}. |
This experiment is described in detail in section \ref{sect:eg-offline-cfc}. |
| 43 |
|
|
| 44 |
\item \texttt{front\_relax} - Relaxation of an ocean thermal front (test for |
\item \texttt{tutorial\_deep\_convection} - Inhomogenously forced |
| 45 |
Gent/McWilliams scheme). 2D (Y-Z). |
ocean convection in a doubly periodic box. This experiment is |
| 46 |
|
described in detail in section \ref{sect:eg-bconv}. |
| 47 |
\item \texttt{internal\_wave} - Ocean internal wave forced by open |
|
| 48 |
boundary conditions. |
\item \texttt{tutorial\_global\_oce\_biogeo} Ocean model coupled to |
| 49 |
|
the dissolved inorganic carbon biogeochemistry model. This |
| 50 |
\item \texttt{natl\_box} - Eastern subtropical North Atlantic with KPP |
experiment is described in detail in section |
| 51 |
scheme; 1 month integration |
\ref{sect:eg-biogeochem_tutorial}. |
| 52 |
|
|
| 53 |
\item \texttt{hs94.1x64x5} - Zonal averaged atmosphere using Held and |
\item \texttt{tutorial\_global\_oce\_in\_p} Global ocean simulation in |
| 54 |
Suarez '94 forcing. |
pressure coordinate (non-Boussinesq ocean model). Described in |
| 55 |
|
detail in section \ref{sect:eg-globalpressure}. |
| 56 |
\item \texttt{hs94.128x64x5} - 3D atmosphere dynamics using Held and |
|
| 57 |
Suarez '94 forcing. |
\item \texttt{tutorial\_global\_oce\_latlon} - 4x4 degree global ocean |
| 58 |
|
simulation with steady climatological forcing. This experiment is |
| 59 |
\item \texttt{tutorial\_held\_suarez\_cs} - 3D atmosphere dynamics using Held and Suarez |
described in detail in section \ref{sect:eg-global}. |
| 60 |
(1994) forcing on the cubed sphere. This experiment is described in detail in |
|
| 61 |
section \ref{sect:eg-hs}. |
\item \texttt{tutorial\_global\_oce\_optim} Global ocean state |
| 62 |
|
estimation at $4^\circ$ resolution. This experiment is described in |
| 63 |
\item \texttt{aim.5l\_zon-ave} - Intermediate Atmospheric physics. |
detail in section \ref{sect:eg-global_state_estimate}. |
| 64 |
Global Zonal Mean configuration, 1x64x5 resolution. |
|
| 65 |
|
\item \texttt{tutorial\_held\_suarez\_cs} - 3D atmosphere dynamics |
| 66 |
\item \texttt{aim.5l\_XZ\_Equatorial\_Slice} - Intermediate |
using Held and Suarez (1994) forcing on cubed sphere grid. This |
| 67 |
Atmospheric physics, equatorial Slice configuration. 2D (X-Z). |
experiment is described in detail in section \ref{sect:eg-hs}. |
| 68 |
|
|
| 69 |
\item \texttt{aim.5l\_Equatorial\_Channel} - Intermediate Atmospheric |
\item \texttt{tutorial\_offline} Offline form of the MITgcm to study |
| 70 |
physics. 3D Equatorial Channel configuration. |
advection of a passive tracer. This experiment is described in |
| 71 |
|
detail in section \ref{sect:eg-offline}. |
| 72 |
\item \texttt{aim.5l\_LatLon} - Intermediate Atmospheric physics. |
|
| 73 |
Global configuration, on latitude longitude grid with 128x64x5 grid |
\item \texttt{tutorial\_plume\_on\_slope} Gravity Plume on a |
| 74 |
points ($2.8^\circ$ resolution). |
continental slope. This experiment is described in detail in |
| 75 |
|
section \ref{sect:eg-gravityplume}. |
| 76 |
\item \texttt{aim.5l_cs} |
|
| 77 |
|
\item \texttt{tutorial\_tracer\_adjsens} Simple passive tracer |
| 78 |
|
experiment. Includes derivative calculation. This experiment is |
| 79 |
|
described in detail in section \ref{sect:eg-simple-tracer-adjoint}. |
| 80 |
|
|
| 81 |
\item \texttt{adjustment.128x64x1} Barotropic adjustment problem on |
\item \texttt{adjustment.128x64x1} Barotropic adjustment problem on |
| 82 |
latitude longitude grid with 128x64 grid points ($2.8^\circ$ resolution). |
latitude longitude grid with 128x64 grid points ($2.8^\circ$ resolution). |
| 86 |
resolution). |
resolution). |
| 87 |
|
|
| 88 |
\item \texttt{advect\_cs} Two-dimensional passive advection test on |
\item \texttt{advect\_cs} Two-dimensional passive advection test on |
| 89 |
cube sphere grid. |
cube sphere grid (32x32 grid points per face, roughly $2.8^\circ$) |
| 90 |
|
|
| 91 |
\item \texttt{advect\_xy} Two-dimensional (horizontal plane) passive |
\item \texttt{advect\_xy} Two-dimensional (horizontal plane) passive |
| 92 |
advection test on Cartesian grid. |
advection test on Cartesian grid.\\ |
| 93 |
|
Also contains an additional set-up iusing Adams-Bashforth 3 (input.ab3\_c4). |
| 94 |
|
|
| 95 |
\item \texttt{advect\_xz} Two-dimensional (vertical plane) passive |
\item \texttt{advect\_xz} Two-dimensional (vertical plane) passive |
| 96 |
advection test on Cartesian grid. |
advection test on Cartesian grid. |
| 97 |
|
|
| 98 |
\item \texttt{tutorial\_tracer\_adjsens} Simple passive tracer experiment. Includes |
\item \texttt{aim.5l\_Equatorial\_Channel} |
| 99 |
derivative calculation. This experiment is described in detail in section |
- 5-levels Intermediate Atmospheric physics, |
| 100 |
\ref{sect:eg-simple-tracer}. |
3D Equatorial Channel configuration. |
|
|
|
|
\item \texttt{flt\_example} Example of using float package. |
|
| 101 |
|
|
| 102 |
\item \texttt{global\_ocean.90x40x15} Global circulation with GM, flux |
\item \texttt{aim.5l\_LatLon} - 5-levels Intermediate Atmospheric physics, |
| 103 |
boundary conditions and poles. |
Global configuration, on latitude longitude grid with 128x64x5 grid |
| 104 |
|
points ($2.8^\circ$ resolution). |
| 105 |
|
|
| 106 |
|
\item \texttt{aim.5l\_cs} - 5-levels Intermediate Atmospheric physics, |
| 107 |
|
Global configuration on cube sphere grid |
| 108 |
|
(32x32 grid points per face, roughly $2.8^\circ$).\\ |
| 109 |
|
Also contains an additional set-up with an ocean mixed layer and thermodynamics |
| 110 |
|
sea-ice (input.thSI). |
| 111 |
|
|
| 112 |
\item \texttt{tutorial\_global\_oce\_in\_p} Global circulation in pressure |
\item \texttt{biogeo} (to be removed) |
|
coordinate (non-Boussinesq ocean model). Described in detail in |
|
|
section \ref{sect:eg-globalpressure}. |
|
| 113 |
|
|
| 114 |
\item \texttt{solid-body.cs-32x32x1} Solid body rotation test for cube |
\item \texttt{bottom\_ctrl\_5x5} Adjoint test using the bottom |
| 115 |
sphere grid. |
topography as the control parameter. |
| 116 |
|
|
| 117 |
\item \texttt{tutorial\_plume\_on\_slope} Gravity Plume on a continental slope. |
\item \texttt{cfc\_example} Global ocean with online computation and |
| 118 |
This experiment is described in detail in section \ref{sect:eg-gravityplume}. |
advection of CFC11 and CFC12. |
| 119 |
|
|
| 120 |
\item \texttt{tutorial\_global\_oce\_biogeo} Ocean model coupled to the dissolved |
\item \texttt{cpl\_aim+ocn} |
|
inorganic carbon biogeochemistry model. This experiment is described in detail in section |
|
|
\ref{sect:eg-biogeochem\_tutorial}. |
|
| 121 |
|
|
| 122 |
\item \texttt{tutorial\_global\_oce\_optim} Global ocean state estimation at $4^\circ$ resolution. |
\item \texttt{cpl\_atm2d+ocn} |
|
This experiment is described in detail in section \ref{sect:eg-global\_state\_estimate}. |
|
| 123 |
|
|
| 124 |
\item \texttt{tutorial\_offline} Offline form of the MITgcm to study advection of a passive |
\item \texttt{deep\_anelastic} |
|
tracer. This experiment is described in detail in section \ref{sect:eg-offline}. |
|
| 125 |
|
|
| 126 |
\item \texttt{rotating\_tank} Rotating tank simulation in cylindrical coordinates. |
\item \texttt{dome} Idealized 3D test of a density-driven bottom current. |
|
This experiment is described in detail in section \ref{sect:eg-tank}. |
|
| 127 |
|
|
| 128 |
\item \texttt{MLAdjust} Simple test for different viscosity formulations. |
\item \texttt{exp2} Old version of the global ocean experiment (no GM, |
| 129 |
|
no partial-cells).\\ |
| 130 |
|
Also contains an additional set-up with ridid-lid (input.rigidLid). |
| 131 |
|
|
| 132 |
\item \texttt{bottom_ctrl_5x5} Adjoint test using the bottom topography as the |
\item \texttt{exp4} - Flow over a Gaussian bump in open-water or |
| 133 |
control parameter. |
channel with open boundaries. |
| 134 |
|
|
| 135 |
|
\item \texttt{exp5} Deep convection. |
| 136 |
|
|
| 137 |
\item \texttt{cfc_example} Global ocean with online computation and advection of |
\item \texttt{fizhi-cs-32x32x40} Global atmospheric simulation with |
| 138 |
CFC11 and CFC12. |
realistic topography, 10 vertical levels, a cubed sphere grid and |
| 139 |
|
the full atmospheric physics package. |
| 140 |
|
|
| 141 |
|
\item \texttt{fizhi-cs-aqualev20} Global atmospheric simulation on an |
| 142 |
|
aqua planet with full atmospheric physics. Run is perpetual march |
| 143 |
|
with an analytical SST distribution. This is the configuration for |
| 144 |
|
the APE (Aqua Planet Experiment) participation experiment. |
| 145 |
|
|
| 146 |
|
\item \texttt{fizhi-gridalt-hs} Global atmospheric simulation |
| 147 |
|
Held-Suarez (1994) forcing, with the physical forcing and the |
| 148 |
|
dynamical forcing running on different vertical grids. |
| 149 |
|
|
| 150 |
\item \texttt{dome} Idealized 3D test of a density-driven bottom current. |
\item \texttt{flt\_example} Example of using float package. |
| 151 |
|
|
| 152 |
|
\item \texttt{front\_relax} - Relaxation of an ocean thermal front |
| 153 |
|
(test for Gent/McWilliams scheme). 2D (Y-Z). |
| 154 |
|
|
| 155 |
\item \texttt{exp2} Old version of the global ocean experiment. |
\item \texttt{global1x1\_tot} ECCO-GODAE production configuration |
| 156 |
|
version 1, 2 \& 3 |
| 157 |
|
|
| 158 |
\item \texttt{exp5} Deep convection. |
\item \texttt{global2x2\_tot} ECCO production configuration version 0 |
| 159 |
|
|
| 160 |
|
\item \texttt{global\_ocean.90x40x15} Global ocean simulation at 4x4 |
| 161 |
|
degree resolution. Similar to tutorial\_global\_oce\_latlon, with |
| 162 |
|
quasi-non-hydrostatics and non-hydrostatic metric terms.\\ |
| 163 |
|
Also contains an adjoint set-up (code\_ad, input\_ad). |
| 164 |
|
|
| 165 |
|
\item \texttt{global\_ocean.cs32x15} Global ocean experiment on the |
| 166 |
|
cubed sphere grid.\\ |
| 167 |
|
Also contains additional set-ups: |
| 168 |
|
\begin{enumerate} |
| 169 |
|
\item non-hydrostratic with biharmonic viscosity (input.viscA4) |
| 170 |
|
\item using thermodynamic sea ice and bulk force (input.thsice) |
| 171 |
|
\item using thermodynamic (pkg/thsice) dynamics (pkg/seaice) sea-ice |
| 172 |
|
and exf pkg (input.icedyn) |
| 173 |
|
\end{enumerate} |
| 174 |
|
|
| 175 |
|
\item \texttt{global\_ocean\_ebm} Global ocean experiment on a lat-lon |
| 176 |
|
grid coupled to an atmospheric energy balance model. Similar to |
| 177 |
|
global\_ocean.90x40x15 experiment. |
| 178 |
|
|
| 179 |
|
\item \texttt{global\_with\_exf} Global ocean experiment on a lat-lon |
| 180 |
|
grid using the exf package. Similar to global\_ocean.90x40x15 |
| 181 |
|
experiment. |
| 182 |
|
|
| 183 |
|
\item \texttt{hs94.128x64x5} - 3D atmosphere dynamics on lat-lon grid, |
| 184 |
|
using Held and Suarez '94 forcing. |
| 185 |
|
|
| 186 |
|
\item \texttt{hs94.1x64x5} - Zonal averaged atmosphere dynamics |
| 187 |
|
using Held and Suarez '94 forcing. |
| 188 |
|
|
| 189 |
|
\item \texttt{hs94.cs-32x32x5} 3D atmosphere dynamics using Held and |
| 190 |
|
Suarez (1994) forcing on the cubed sphere. 5 vertical levels. |
| 191 |
|
|
| 192 |
|
\item \texttt{ideal\_2D\_oce} Idealized 2D global ocean simulation on |
| 193 |
|
an aqua planet. |
| 194 |
|
|
| 195 |
\item \texttt{fizhi-cs-32x32x10} Global atmospheric simulation with realistic topography, |
\item \texttt{internal\_wave} - Ocean internal wave forced by open |
| 196 |
10 vertical levels, a cubed sphere grid and the full atmospheric physics package. |
boundary conditions. |
| 197 |
|
|
| 198 |
\item \texttt{fizhi-cs-aqualev20} Global atmospheric simulation on an aqua planet with |
\item \texttt{inverted\_barometer} Simple test of ocean response to |
| 199 |
full atmospheric physics. Run is perpetual march with an analytical SST distribution. |
atmospheric pressure loading. |
|
This is the configuration for the APE (Aqua Planet Experiment) participation experiment. |
|
| 200 |
|
|
| 201 |
\item \texttt{fizhi-gridalt-hs} Global atmospheric simulation Held-Suarez (1994) forcing, |
\item \texttt{isomip} |
|
with the physical forcing and the dynamical forcing running on different vertical grids. |
|
| 202 |
|
|
| 203 |
\item \texttt{global_ocean.cs32x15} Global ocean experiment on the cubed sphere grid, using |
\item \texttt{lab\_sea} Regional Labrador Sea simulation on a lat-lon |
| 204 |
thermodynamic sea ice and bulk force packages. |
grid. Coupled to the sea ice model. |
| 205 |
|
|
| 206 |
\item \texttt{global_ocean_ebm} Global ocean experiment on a lat-lon grid coupled to an |
\item \texttt{matrix\_example} Test of experimental method to |
| 207 |
atmospheric energy balance model. Similar to global_ocean.90x40x15 experiment. |
accelerated convergence towards equillibrium. |
| 208 |
|
|
| 209 |
\item \texttt{global_with_exf} Global ocean experiment on a lat-lon grid using the exf |
\item \texttt{MLAdjust} Simple test for different viscosity formulations. |
|
package. Similar to global_ocean.90x40x15 experiment. |
|
| 210 |
|
|
| 211 |
\item \texttt{hs94.cs-32x32x5} 3D atmosphere dynamics using Held and Suarez |
\item \texttt{natl\_box} - Eastern subtropical North Atlantic with KPP |
| 212 |
(1994) forcing on the cubed sphere. 5 vertical levels. |
scheme; 1 month integration |
| 213 |
|
|
| 214 |
\item \texttt{ideal_2D_oce} Idealized 2D global ocean simulation on an aqua planet. |
\item \texttt{natl\_box\_adjoint} |
| 215 |
|
|
| 216 |
\item \texttt{inverted_barometer} Simple test of ocean response to atmospheric pressure |
\item \texttt{offline\_exf\_seaice} |
| 217 |
loading. |
|
| 218 |
|
\item \texttt{OpenAD} |
| 219 |
|
|
| 220 |
\item \texttt{lab_sea} Regional Labrador Sea simulation on a lat-lon grid. Coupled to |
\item \texttt{rotating\_tank} Rotating tank simulation in cylindrical |
| 221 |
the sea ice model. |
coordinates. This experiment is described in detail in section |
| 222 |
|
\ref{sect:eg-tank}. |
| 223 |
|
|
| 224 |
\item \texttt{matrix_example} Test of experimental method to accelerated convergence towards |
\item \texttt{seaice\_obcs} |
|
equillibrium. |
|
| 225 |
|
|
| 226 |
\item \texttt{tutorial_cfc_offline} Offline form of the MITgcm to study advection of a passive |
\item \texttt{solid-body.cs-32x32x1} Solid body rotation test for cube |
| 227 |
tracer and CFCs. |
sphere grid. |
| 228 |
|
|
| 229 |
\item \texttt{vermix} Simple test in a small domain (3 columns) for ocean vertical mixing schemes. |
\item \texttt{tidal\_basin\_2d} |
| 230 |
|
|
| 231 |
|
\item \texttt{vermix} Simple test in a small domain (3 columns) for |
| 232 |
|
ocean vertical mixing schemes. |
| 233 |
|
|
| 234 |
\end{enumerate} |
\end{enumerate} |
| 235 |
|
|
| 288 |
In addition, you will also find in this directory the forcing and |
In addition, you will also find in this directory the forcing and |
| 289 |
topography files as well as the files describing the initial state |
topography files as well as the files describing the initial state |
| 290 |
of the experiment. This varies from experiment to experiment. See |
of the experiment. This varies from experiment to experiment. See |
| 291 |
section 2 for more details. |
the verification directories refered to in this chapter for more details. |
| 292 |
|
|
| 293 |
\item \texttt{results}: this directory contains the output file |
\item \texttt{results}: this directory contains the output file |
| 294 |
\texttt{output.txt} produced by the simulation example. This file is |
\texttt{output.txt} produced by the simulation example. This file is |
| 295 |
useful for comparison with your own output when you run the |
useful for comparison with your own output when you run the |
| 296 |
experiment. |
experiment. |
| 297 |
|
|
| 298 |
|
\item \texttt{build}: this directory is where the model is compiled |
| 299 |
|
and loaded, and where the executable resides. |
| 300 |
|
|
| 301 |
\end{itemize} |
\end{itemize} |
| 302 |
|
|
| 303 |
Once you have chosen the example you want to run, you are ready to |
Once you have chosen the example you want to run, you are ready to |
| 311 |
\input{part3/case_studies/fourlayer_gyre/fourlayer.tex} |
\input{part3/case_studies/fourlayer_gyre/fourlayer.tex} |
| 312 |
|
|
| 313 |
\newpage |
\newpage |
| 314 |
|
\input{part3/case_studies/advection_in_gyre_circulation/adv_gyre.tex} |
| 315 |
|
|
| 316 |
|
\newpage |
| 317 |
\input{part3/case_studies/climatalogical_ogcm/climatalogical_ogcm.tex} |
\input{part3/case_studies/climatalogical_ogcm/climatalogical_ogcm.tex} |
| 318 |
|
|
| 319 |
\newpage |
\newpage |
| 329 |
\input{part3/case_studies/plume_on_slope/plume_on_slope.tex} |
\input{part3/case_studies/plume_on_slope/plume_on_slope.tex} |
| 330 |
|
|
| 331 |
\newpage |
\newpage |
|
\input{part3/case_studies/carbon_outgassing_sensitivity/co2sens.tex} |
|
|
|
|
|
\newpage |
|
| 332 |
\input{part3/case_studies/biogeochem_tutorial/biogeochem.tex} |
\input{part3/case_studies/biogeochem_tutorial/biogeochem.tex} |
| 333 |
|
|
| 334 |
\newpage |
\newpage |
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