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The scripts in this directory are for adding tidal boundary condition |
The scripts in this directory are for adding tidal boundary condition |
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to a regional configuration of MITgcm. |
to a regional configuration of MITgcm. |
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The scripts are tested for Pine Island Model |
The scripts are tested for Pine Island Model |
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and also for verification/seaice_obcs using specified tidal boundary file. |
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Steps to add tide boundary conditions to regional MITgcm |
Steps to add tide boundary conditions to regional MITgcm |
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0) Download the Circum-Antarctic Tide (CAT) Solution (Padman et al. 2002) |
0) Download the Circum-Antarctic Tide (CATS) Solution (Padman et al. 2002) |
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from Earth and Space Research, http://www.esr.org. |
from Earth and Space Research, http://www.esr.org/~padman/cats2008b/ |
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Modify CAT directory in test_tide_bc.m |
Modify CATS directory in test_tide_bc.m |
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Download the TMD2.03 software for extracting the tidal solution from |
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http://www.esr.org. |
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Modifications are needed in the original /TMD2.03/tmd_extract_HC.m in order |
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to have the correct path of tidal solution as shown in the sample_tmd_extract_HC.m. |
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1) use create_bc_grid.m (test_bc_grid.m) to generate bc grid files. |
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1) use create_bc_grid.m (called by test_bc_grid.m) to generate bc grid files. |
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create_bc_grid.m will generate files with names like |
create_bc_grid.m will generate files with names like |
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bdry_grid_[snwe].mat for south, north, west, and east boundary. |
bdry_grid_[snwe].mat for south, north, west, and east boundary. |
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This script needs a directory path for MITgcm domain related files, |
This script needs a directory path for MITgcm domain related files, |
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especially YC.data, XC.data, hFacC.data, AngleCS.data, AngleSN.data. |
specifically YC.data, XC.data, hFacC.data, AngleCS.data, AngleSN.data. |
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2) use create_tide_bc_4bdry.m to generate tidal bc files (test_tide_bc.m) |
2) use test_tide_bc.m to generate tidal bc files which calls |
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Or dummy tidal bc files (zero amplitde and phase) for land boundary |
create_tide_bc_second.m |
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if there is such a need. |
or dummy tidal bc files (zero amplitude and phase, tide_bc_empty.m) |
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for land boundary if there is such a need. |
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create_tide_bc_4bdary.m will generate tidal bounday files with names |
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like OB[SNWE]{am ph}.seaice_obcs and a time constant in seconds |
create_tide_bc_second.m will generate tidal boundary files with names |
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which will be used in obcs_add_tides.F |
like OB[SNWE]{am ph}.seaice_obcs. |
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The obcs_add_tides.F is included in this directory to explain how |
The tidal current and phase will be used in obcs_add_tides.F. |
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timec is used. This part (using timec) will be changed in future. |
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3) Modify MITgcm configuration |
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3) Modify data.obcs as following |
3.1) ALLOW_OBCS_TIDES in OBCS_OPTIONS.h |
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The number of tidal constituents to be included and their order |
3.2) OBCS_PARAMS.h (tidalComponents = ??, number of tidal constituent to be included.) |
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should be consistent for tidal periods and tidal current amplitude and |
3.3) data.obcs as following |
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phase files, OB?amFile and OB?phFile. |
The number of tidal constituents to be included and their period and |
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useOBCStides = .TRUE. |
order should be consistent with their order in tidal current amplitude |
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and phase files, OB?amFile and OB?phFile. |
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useOBCStides = .TRUE. |
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tidalperiod = ... |
tidalperiod = ... |
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OBSamFile = ... |
OBSamFile = ... |
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OBNamFile = ... |
OBNamFile = ... |
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OBWamFile = ... |
OBWamFile = ... |
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OBEamFile = ... |
OBEamFile = ... |
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OBSphFile = ... |
OBSphFile = ... |
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OBNphFile = ... |
OBNphFile = ... |
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OBWphFile = ... |
OBWphFile = ... |
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OBEphFile = ... |
OBEphFile = ... |
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Antarctic ice shelves and seas, Ann. Glaciol., 34, 247-254. |
Antarctic ice shelves and seas, Ann. Glaciol., 34, 247-254. |
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XC WANG 15 Mar 2013 |
XC WANG 25 Mar 2013 |
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XC WANG 07 Feb. 2013 |
XC WANG 07 Feb. 2013 |
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XC WANG 20 Dec. 2012 |
XC WANG 20 Dec. 2012 |
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xiaochun.wang@jpl.nasa.gov |
xiaochun.wang@jpl.nasa.gov |
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