| 1 | The scripts in this directory are for adding tidal boundary condition | The scripts in this directory are for adding tidal boundary condition | 
| 2 | to a regional configuration of MITgcm. | to a regional configuration of MITgcm. | 
| 3 |  |  | 
| 4 | The scripts are tested for Pine Island Model | The scripts are tested for Pine Island Model | 
| 5 |  | and also for verification/seaice_obcs using specified tidal boundary file. | 
| 6 |  |  | 
| 7 | Steps  to add tide boundary conditions  to regional MITgcm | Steps  to add tide boundary conditions  to regional MITgcm | 
| 8 | 0) Download the Circum-Antarctic Tide (CAT) Solution (Padman et al. 2002) | 0) Download the Circum-Antarctic Tide (CATS) Solution (Padman et al. 2002) | 
| 9 | from Earth and Space Research, http://www.esr.org. | from Earth and Space Research, http://www.esr.org. | 
| 10 | Modify CAT directory in test_tide_bc.m | Modify CAT directory in test_tide_bc.m | 
| 11 |  |  | 
| 15 | This script needs a directory path for MITgcm domain related files, | This script needs a directory path for MITgcm domain related files, | 
| 16 | especially YC.data, XC.data, hFacC.data, AngleCS.data, AngleSN.data. | especially YC.data, XC.data, hFacC.data, AngleCS.data, AngleSN.data. | 
| 17 |  |  | 
| 18 | 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 | 
| 19 | Or dummy tidal bc files (zero amplitde and phase) for land boundary | create_tide_bc_4bdry.m | 
| 20 |  | or dummy tidal bc files (zero amplitde and phase) for land boundary | 
| 21 | if there is such a need. | if there is such a need. | 
| 22 |  |  | 
| 23 | create_tide_bc_4bdary.m will generate tidal bounday files with names | create_tide_bc_second.m will generate tidal bounday files with names | 
| 24 | like OB[SNWE]{am ph}.seaice_obcs and a time constant in seconds | like OB[SNWE]{am ph}.seaice_obcs. | 
| 25 | which will be used in obcs_add_tides.F | The tidal current and phase will be used in  obcs_add_tides.F. | 
| 26 | The obcs_add_tides.F is included in this directory to explain how |  | 
| 27 | timec is used. This part (using timec)  will be changed in future. | 3) Modify MITgcm configuration | 
| 28 |  | 3.1) ALLOW_OBCS_TIDES in OBCS_OPTIONS.h | 
| 29 | 3) Modify data.obcs as following | 3.2) OBCS_PARAMS.h  (tidalComponents = ??, number of tidal constituent to be included.) | 
| 30 | The number of tidal constituents to be included and their order | 3.3) data.obcs as following | 
| 31 | should be consistent for tidal periods and tidal current amplitude and | The number of tidal constituents to be included and their period and | 
| 32 | phase files,  OB?amFile and OB?phFile. | order should be consistent with their order in tidal current amplitude | 
| 33 | useOBCStides = .TRUE. | and phase files,  OB?amFile and OB?phFile. | 
| 34 |  | useOBCStides = .TRUE. | 
| 35 | tidalperiod = ... | tidalperiod = ... | 
| 36 | OBSamFile =  ... | OBSamFile =  ... | 
| 37 | OBNamFile =  ... | OBNamFile =  ... | 
| 38 | OBWamFile = ... | OBWamFile = ... | 
| 39 | OBEamFile = ... | OBEamFile = ... | 
| 40 | OBSphFile = ... | OBSphFile = ... | 
| 41 | OBNphFile = ... | OBNphFile = ... | 
| 42 | OBWphFile = ... | OBWphFile = ... | 
| 43 | OBEphFile = ... | OBEphFile = ... | 
| 44 |  |  | 
| 45 |  |  | 
| 46 |  |  | 
| 49 | Antarctic ice shelves and seas, Ann. Glaciol., 34, 247-254. | Antarctic ice shelves and seas, Ann. Glaciol., 34, 247-254. | 
| 50 |  |  | 
| 51 |  |  | 
| 52 | XC WANG 15 Mar  2013 | XC WANG 25 Mar  2013 | 
| 53 | XC WANG 07 Feb. 2013 | XC WANG 07 Feb. 2013 | 
| 54 | XC WANG 20 Dec. 2012 | XC WANG 20 Dec. 2012 | 
| 55 | xiaochun.wang@jpl.nasa.gov | xiaochun.wang@jpl.nasa.gov |