This directory ( ocn/ ) contains ESMF component interface code for the MITgcm OCN
ESMF gridded component. The numerical and infrastructure interface MITgcm OCN code 
is called from the ESMF gridded component interface code found here. The ESMF
gridded component interfaces are called from a parent component. The parent directory
to ocn/ contains an ESMF application driver in file "main.F" configured to call the 
ocn/ interfaces and a build script in the file "comp.sh" that compiles and links.
The "comp.sh" script compiles the ESMF application driver, the ESMF component 
interfaces for MITgcm OCN, MITgcm ATM, MITgcm O2A and MITgcm A2O and links these
together with the libraries for the ESMF framework, the MITgcm OCN numerical
code and the MITgcm ATM numerical code.

o Files
 mitgcm_org_ocn_esmf_driver.F    -- set_services(), run() and init() ESMF gridded 
                                 -- component interface code for MITgcm OCN.

 mitgcm_org_ocn_esmf_exports.F   -- Defines field names for an MITgcm OCN component 
                                 -- ESMF export state.

 mitgcm_org_ocn_esmf_imports.F   -- Defines field names for an MITgcm OCN component
                                 -- ESMF import state.
