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Set gregorian calednar correctly for CICE #112

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Mar 5, 2024
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4 changes: 3 additions & 1 deletion CICE/CMakeLists.txt
Original file line number Diff line number Diff line change
Expand Up @@ -127,13 +127,15 @@ target_sources(OM3_cice PRIVATE
CICE/cicecore/drivers/nuopc/cmeps/CICE_InitMod.F90
CICE/cicecore/drivers/nuopc/cmeps/CICE_RunMod.F90
CICE/cicecore/drivers/nuopc/cmeps/cice_wrapper_mod.F90
CICE/cicecore/drivers/nuopc/cmeps/ice_comp_nuopc.F90
CICE/cicecore/drivers/nuopc/cmeps/ice_import_export.F90
CICE/cicecore/drivers/nuopc/cmeps/ice_prescribed_mod.F90
CICE/cicecore/drivers/nuopc/cmeps/ice_scam.F90
CICE/cicecore/drivers/nuopc/cmeps/ice_shr_methods.F90
)

add_patched_source(OM3_cice CICE/cicecore/drivers/nuopc/cmeps/ice_mesh_mod.F90)
add_patched_source(OM3_cice CICE/cicecore/drivers/nuopc/cmeps/ice_comp_nuopc.F90)
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@micaeljtoliveira - is there a neater syntax than this for adding multiple patched sources?

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No, not really. If you have many files to patch then it might be worth putting them in a list and loop over the list contents. Something like this:

list(APPEND FilesToPatch CICE/cicecore/drivers/nuopc/cmeps/ice_mesh_mod.F90 CICE/cicecore/drivers/nuopc/cmeps/ice_comp_nuopc.F90)
foreach(FILE IN LISTS FilesToPatch)
  add_patched_source(OM3_cice ${FILE})
endforeach()

Another option would be to add a variant of add_patched_source that takes multiple files:

add_patched_source(OM3_cice CICE/cicecore/drivers/nuopc/cmeps/ice_mesh_mod.F90 CICE/cicecore/drivers/nuopc/cmeps/ice_comp_nuopc.F90)

IMO, none of them looks much neater than what you have here, but happy to hear other opinions.

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Ok thanks - ill leave it alone :)


# Select IO source files based on CICE_IO
if(OM3_CICE_IO MATCHES "NetCDF")
target_sources(OM3_cice PRIVATE
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56 changes: 56 additions & 0 deletions CICE/patches/ice_comp_nuopc.F90.patch
Original file line number Diff line number Diff line change
@@ -0,0 +1,56 @@
diff --git a/cicecore/drivers/nuopc/cmeps/ice_comp_nuopc.F90 b/cicecore/drivers/nuopc/cmeps/ice_comp_nuopc.F90
index b94fcff0..af9e4a36 100644
--- a/cicecore/drivers/nuopc/cmeps/ice_comp_nuopc.F90
+++ b/cicecore/drivers/nuopc/cmeps/ice_comp_nuopc.F90
@@ -23,10 +23,10 @@ module ice_comp_nuopc
use ice_domain_size , only : nx_global, ny_global
use ice_grid , only : grid_format, init_grid2
use ice_communicate , only : init_communicate, my_task, master_task, mpi_comm_ice
- use ice_calendar , only : force_restart_now, write_ic, init_calendar
- use ice_calendar , only : idate, mday, mmonth, myear, year_init
+ use ice_calendar , only : force_restart_now, write_ic
+ use ice_calendar , only : idate, idate0, mday, mmonth, myear, year_init, month_init, day_init
use ice_calendar , only : msec, dt, calendar, calendar_type, nextsw_cday, istep
- use ice_calendar , only : ice_calendar_noleap, ice_calendar_gregorian
+ use ice_calendar , only : ice_calendar_noleap, ice_calendar_gregorian, use_leap_years
use ice_kinds_mod , only : dbl_kind, int_kind, char_len, char_len_long
use ice_fileunits , only : nu_diag, nu_diag_set, inst_index, inst_name
use ice_fileunits , only : inst_suffix, release_all_fileunits, flush_fileunit
@@ -746,7 +746,7 @@ subroutine InitializeRealize(gcomp, importState, exportState, clock, rc)
call cice_init2()
call t_stopf ('cice_init2')
!---------------------------------------------------------------------------
- ! use EClock to reset calendar information on initial start
+ ! use EClock to reset calendar information
!---------------------------------------------------------------------------

! - on initial run
@@ -762,7 +762,7 @@ subroutine InitializeRealize(gcomp, importState, exportState, clock, rc)
if (ref_ymd /= start_ymd .or. ref_tod /= start_tod) then
if (my_task == master_task) then
write(nu_diag,*) trim(subname),': ref_ymd ',ref_ymd, ' must equal start_ymd ',start_ymd
- write(nu_diag,*) trim(subname),': ref_ymd ',ref_tod, ' must equal start_ymd ',start_tod
+ write(nu_diag,*) trim(subname),': ref_tod',ref_tod, ' must equal start_tod ',start_tod
end if
end if

@@ -794,6 +794,19 @@ subroutine InitializeRealize(gcomp, importState, exportState, clock, rc)

end if

+ ! - start time from ESMF clock. Used to set history time units
+ idate0 = start_ymd
+ year_init = (idate0/10000)
+ month_init= (idate0-year_init*10000)/100 ! integer month of basedate
+ day_init = idate0-year_init*10000-month_init*100
+
+ ! - Set use_leap_years based on calendar (as some CICE calls use this instead of the calendar type)
+ if (calendar_type == ice_calendar_gregorian) then
+ use_leap_years = .true.
+ else
+ use_leap_years = .false. ! no_leap calendars
+ endif
Comment on lines +48 to +52
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This can be made more compact:

Suggested change
+ if (calendar_type == ice_calendar_gregorian) then
+ use_leap_years = .true.
+ else
+ use_leap_years = .false. ! no_leap calendars
+ endif
+ use_leap_years = calendar_type == ice_calendar_gregorian

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Oh good pickup! I'm also going to leave this as is because we already committed this to cice-main :)

+
call calendar() ! update calendar info

!----------------------------------------------------------------------------
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