Merge pull request #3166 from ESMCI/mvertens/mom6_validation

changes needed for nuopc/mct mom6 validation
This also introduces the new grid tx0.61

Test suite: scripts_regression_tests
Test baseline: no
Test namelist changes:
Test status: bit for bit
Fixes: None
User interface changes?: No
Update gh-pages html (Y/N)?: N
Code review:

driver-mct/main/cime_comp_mod.F90

@@ -1639,11 +1639,7 @@ subroutine cime_init()
     ! set skip_ocean_run flag, used primarily for ocn run on first timestep
     ! use reading a restart as a surrogate from whether this is a startup run
 
-#ifdef COMPARE_TO_NUOPC
-    skip_ocean_run = .false.
-#else
     skip_ocean_run = .true.
-#endif
     if ( read_restart) skip_ocean_run = .false.
     ocnrun_count = 0
     cpl2ocn_first = .true.
@@ -3872,12 +3868,24 @@ subroutine cime_run_atmocn_setup(hashint)
 
        ! ocn prep-merge (cesm1_mod or cesm1_mod_tight)
        if (ocn_prognostic) then
+#if COMPARE_TO_NUOPC          
+          !This is need to compare to nuopc
+          if (.not. skip_ocean_run) then
+             ! ocn prep-merge
+             xao_ox => prep_aoflux_get_xao_ox()
+             call prep_ocn_mrg(infodata, fractions_ox, xao_ox=xao_ox, timer_mrg='CPL:atmocnp_mrgx2o')
+
+             ! Accumulate ocn inputs - form partial sum of tavg ocn inputs (virtual "send" to ocn)
+             call prep_ocn_accum(timer='CPL:atmocnp_accum')
+          end if
+#else 
           ! ocn prep-merge
           xao_ox => prep_aoflux_get_xao_ox()
           call prep_ocn_mrg(infodata, fractions_ox, xao_ox=xao_ox, timer_mrg='CPL:atmocnp_mrgx2o')
 
           ! Accumulate ocn inputs - form partial sum of tavg ocn inputs (virtual "send" to ocn)
           call prep_ocn_accum(timer='CPL:atmocnp_accum')
+#endif
        end if
 
        !----------------------------------------------------------