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We started the process of consolidating our ROMS repositories. We have too many research git and svn repositories. In a few days, we will host the git repository on GitHub and will have several branches when cloning ROMS source code:

• master: Tagged versions and latest stable release version of ROMS
• develop: Main developing branch of ROMS. Not recommended for public consumption but passes the internal tests. It is recommended for ROMS superusers and beta testers.
• feature branches: Research and new development branches recommended to superusers and beta testers:
  • feature/kernels: Major update to ROMS numerical kernels (omega.F and step2d.F)
  • feature/seaice: Native ROMS sea-ice model refactoring and development
  • feature/wec: Wave Effects on Currents algorithms adopted from COAWST

I suggest waiting until we are done with the refactoring and the regular and novice user to focus on either the master or develop branches. The restructuring facilitates the maintenance of ROMS source code, the development of new algorithms, and updating of the COAWST system.

We still recommend users to interact via ​https://www.myroms.org/forum for discussions and problems. There is plenty of information at ​https://www.myroms.org/wiki

• Corrected conflict with the state variables counters for isMtke and isWvel. In mod_ncparam.F, we now have:

  !
  !  Set IDs for state some state variables.
  !
        ic=5
  #ifdef SOLVE3D
        DO i=1,MT
          ic=ic+1
          isTvar(i)=ic
        END DO
  # if defined GLS_MIXING || defined MY25_MIXING
        ic=ic+1
        isMtke=ic
  # endif
        ic=ic+1
        isWvel=ic
  #endif
  #if defined ADJUST_WSTRESS || defined FORCING_SV     || \
      defined HESSIAN_FSV    || defined SO_SEMI        || \
      defined STOCHASTIC_OPT
        isUstr=ic+1
        isVstr=ic+2
        ic=ic+2
  #endif
  #ifdef SOLVE3D
  # if defined ADJUST_STFLUX  || defined FORCING_SV     || \
       defined HESSIAN_FSV    || defined SO_SEMI        || \
       defined STOCHASTIC_OPT
        DO i=1,MT
          ic=ic+1
          isTsur(i)=ic
        END DO
  # endif
  #endif
  

  The state variables indices (order is necessary). Currently, the maximum number of state variables in 3D applications is 9+2*MT. If MT=2 (temperature and salinity), the state variables have the following order:

       1,   2,    3,4,5,      6,      7,  8,9,  10,  11,     12,     13
    zeta,ubar, vbar,u,v,Tvar(1),Tvar(2),TKE,W,Ustr,Vstr,Tsur(1),Tsur(2)
  

  Many thanks to John Warner for bringing this issue to my attention.

• Provided more information in mod_param.F for state variables lateral boundary conditions indices to the LBC structure:

#ifdef SOLVE3D
      nLBCvar=5+MT                 ! zeta, ubar, vbar, u, v, Tvar(1:MT)
# if defined GLS_MIXING || defined MY25_MIXING
      nLBCvar=nLBCvar+1            ! TKE
# endif
#else
      nLBCvar=3                    ! zeta, ubar, vbar
#endif

• The state variables in mod_scalars.F are allocated as vectors of size 9+2*MT.

The current trunk revision (-r 1172) is relatively stable, so we are tagging this as ROMS Version 4.1 and the beginning of ROMS Version 4.2. Also, it will give us a clean start for the ROMS GitHub master branch.