LCOV - code coverage report
Current view: top level - columnphysics - icepack_firstyear.F90 (source / functions) Hit Total Coverage
Test: 200704-015006:b1e41d9f12:3:base,travis,quick Lines: 6 6 100.00 %
Date: 2020-07-03 20:11:40 Functions: 1 1 100.00 %

          Line data    Source code
       1             : !=======================================================================
       2             : !
       3             : ! First year concentration tracer for sea ice
       4             : !
       5             : ! see 
       6             : ! Armour, K. C., C. M. Bitz, L. Thompson and E. C. Hunke (2011). Controls
       7             : ! on Arctic sea ice from first-year and multi-year ice survivability.
       8             : ! J. Climate, 24, 23782390. doi: 10.1175/2010JCLI3823.1.
       9             : !
      10             : ! authors C. Bitz, University of Washington, modified from icepack_age module
      11             : !
      12             : ! 2012: E. Hunke adopted from CESM into CICE, changed name from ice_FY.F90
      13             : !
      14             :       module icepack_firstyear
      15             : 
      16             :       use icepack_kinds
      17             :       use icepack_parameters, only: secday, c0
      18             :       use icepack_warnings, only: warnstr, icepack_warnings_add
      19             :       use icepack_warnings, only: icepack_warnings_setabort, icepack_warnings_aborted
      20             : 
      21             :       implicit none
      22             : 
      23             :       private
      24             :       public :: update_FYarea
      25             : 
      26             : !=======================================================================
      27             : 
      28             :       contains
      29             : 
      30             : !=======================================================================
      31             : 
      32             : !  Zero ice FY tracer on fixed day of year. Zeroing FY ice tracer promotes
      33             : !  ice to MY ice. Unfortunately some frazil ice may grow before the 
      34             : !  zeroing date and thus get promoted to MY ice too soon.
      35             : !  Bummer.
      36             : 
      37      229760 :       subroutine update_FYarea (dt,                 &
      38             :                                 nhmask,   shmask,   &
      39             :                                 yday,     FYarea)
      40             : 
      41             :       real (kind=dbl_kind), intent(in) :: &
      42             :          dt , &                ! time step
      43             :          yday                  ! day of the year
      44             : 
      45             :       logical (kind=log_kind), &
      46             :          intent(in) :: &
      47             :          nhmask, shmask
      48             : 
      49             :       real (kind=dbl_kind), &
      50             :          intent(inout) :: &
      51             :          FYarea
      52             : 
      53             :       character(len=*),parameter :: subname='(update_FYarea)'
      54             : 
      55      229760 :       if ((yday >= 259._dbl_kind) .and. &
      56             :           (yday <  259._dbl_kind+dt/secday)) then
      57         720 :          if (nhmask) FYarea = c0
      58             :       endif
      59             : 
      60      229760 :       if ((yday >= 75._dbl_kind) .and. &
      61             :           (yday <  75._dbl_kind+dt/secday)) then
      62         360 :          if (shmask) FYarea = c0
      63             :       endif
      64             : 
      65      229760 :       end subroutine update_FYarea
      66             : 
      67             : !=======================================================================
      68             : 
      69             :       end module icepack_firstyear
      70             : 
      71             : !=======================================================================

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