New URL for NEMO forge!   http://forge.nemo-ocean.eu

Since March 2022 along with NEMO 4.2 release, the code development moved to a self-hosted GitLab.
This present forge is now archived and remained online for history.
trcnam_c14.F90 in branches/2016/dev_r7012_ROBUST5_CNRS/NEMOGCM/NEMO/TOP_SRC/C14 – NEMO

source: branches/2016/dev_r7012_ROBUST5_CNRS/NEMOGCM/NEMO/TOP_SRC/C14/trcnam_c14.F90 @ 7041

Last change on this file since 7041 was 7041, checked in by cetlod, 8 years ago

ROBUST5_CNRS : implementation of part I of new TOP interface - 1st step -, see ticket #1782
File size: 5.5 KB
Line 
1MODULE trcnam_c14
2   !!======================================================================
3   !!                         ***  MODULE trcnam_c14  ***
4   !! TOP :   initialisation of some run parameters for C14 chemical model
5   !!======================================================================
6   !! History :   2.0  !  2007-12  (C. Ethe, G. Madec) from trcnam.cfc.h90
7   !! History :        !  2015 (A.Mouchet) equilibrium + transient C14
8   !!----------------------------------------------------------------------
9   !! trc_nam_c14      : C14 model initialisation
10   !!----------------------------------------------------------------------
11   USE oce_trc         ! Ocean variables
12   USE trc             ! TOP variables
13   USE sms_c14
14
15   IMPLICIT NONE
16   PRIVATE
17   !!
18   PUBLIC   trc_nam_c14   ! called by trcnam.F90 module
19   !!
20   !!----------------------------------------------------------------------
21   !! NEMO/TOP 3.3 , NEMO Consortium (2010)
22   !! $Id: trcnam_c14.F90                       $
23   !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
24   !!----------------------------------------------------------------------
25
26CONTAINS
27
28   SUBROUTINE trc_nam_c14
29      !!-------------------------------------------------------------------
30      !!                  ***  ROUTINE trc_nam_c14  ***
31      !!                 
32      !! ** Purpose :   Definition some run parameter for C14 model
33      !!
34      !! ** Method  :   Read the namc14 namelist and check the parameter
35      !!       values called at the first timestep (nittrc000)
36      !!
37      !! ** input   :   Namelist namelist_c14
38      !!----------------------------------------------------------------------
39      INTEGER :: ios                 ! Local integer output status for namelist read
40      !!
41      NAMELIST/namc14_typ/ kc14typ,rc14at, pco2at, rc14init   ! type of C14 tracer, default values of C14/C, pco2, & ocean r14
42      NAMELIST/namc14_sbc/ ln_chemh, xkwind, xdicsur          ! chem enh, wind coeff, ref DIC
43      NAMELIST/namc14_fcg/ cfileco2, cfilec14, tyrc14_beg  ! for transient exps; atm forcing
44      !!-------------------------------------------------------------------
45
46      REWIND( numtrc_ref )              ! Namelist namc14_typ in reference namelist :
47      READ  ( numtrc_ref, namc14_typ, IOSTAT = ios, ERR = 901)
48901   IF( ios /= 0 ) CALL ctl_nam ( ios , 'namc14_typ in reference namelist', lwp )
49
50      REWIND( numtrc_cfg )              ! Namelist namcfcdate in configuration namelist
51      READ  ( numtrc_cfg, namc14_typ, IOSTAT = ios, ERR = 902)
52902   IF( ios /= 0 ) CALL ctl_nam ( ios , 'namc14_typ in configuration namelist', lwp )
53      IF(lwm) WRITE ( numonr, namc14_typ )
54
55      IF(lwp) THEN                  ! control print
56         WRITE(numout,*) ' Namelist namc14_typ'
57         WRITE(numout,*)
58         WRITE(numout,*) ' Type of C14 tracer (0=equilibrium; 1=bomb transient; 2=past transient) kc14typ = ', kc14typ
59         WRITE(numout,*) ' Default value for atmospheric C14/C (used for equil run)               rc14at  = ', rc14at
60         WRITE(numout,*) ' Default value for atmospheric pcO2 [atm] (used for equil run)          pco2at  = ', pco2at
61         WRITE(numout,*) ' Default value for initial C14/C in the ocean (used for equil run)      rc14init= ', rc14init
62         WRITE(numout,*) '  '
63      ENDIF
64
65      REWIND( numtrc_ref )              ! Namelist namc14_typ in reference namelist :
66      READ  ( numtrc_ref, namc14_sbc, IOSTAT = ios, ERR = 903)
67903   IF( ios /= 0 ) CALL ctl_nam ( ios , 'namc14_sbc in reference namelist', lwp )
68
69      REWIND( numtrc_cfg )              ! Namelist namcfcdate in configuration namelist
70      READ  ( numtrc_cfg, namc14_sbc, IOSTAT = ios, ERR = 904)
71904   IF( ios /= 0 ) CALL ctl_nam ( ios , 'namc14_sbc in configuration namelist', lwp )
72      IF(lwm) WRITE ( numonr, namc14_sbc )
73
74      IF(lwp) THEN                  ! control print
75         WRITE(numout,*) ' Namelist namc14_sbc'
76         WRITE(numout,*)
77         WRITE(numout,*) ' Chemical enhancement in piston velocity   ln_chemh = ', ln_chemh
78         WRITE(numout,*) ' Coefficient for gas exchange velocity     xkwind   = ', xkwind
79         WRITE(numout,*) ' Reference DIC concentration (mol/m3)      xdicsur  = ', xdicsur
80         WRITE(numout,*) '  '
81      ENDIF
82
83      REWIND( numtrc_ref )              ! Namelist namc14_typ in reference namelist :
84      READ  ( numtrc_ref, namc14_fcg, IOSTAT = ios, ERR = 905)
85905   IF( ios /= 0 ) CALL ctl_nam ( ios , 'namc14_fcg in reference namelist', lwp )
86
87      REWIND( numtrc_cfg )              ! Namelist namcfcdate in configuration namelist
88      READ  ( numtrc_cfg, namc14_fcg, IOSTAT = ios, ERR = 906)
89906   IF( ios /= 0 ) CALL ctl_nam ( ios , 'namc14_fcg in configuration namelist', lwp )
90      IF(lwm) WRITE ( numonr, namc14_fcg )
91
92      IF(lwp) THEN                  ! control print
93         WRITE(numout,*) ' Namelist namc14_fcg'
94         WRITE(numout,*)
95         WRITE(numout,*) ' Atmospheric co2 file ( bomb )  cfileco2   = ', TRIM( cfileco2 )
96         WRITE(numout,*) ' Atmospheric c14 file ( bomb )  cfilec14   = ', TRIM( cfilec14 )
97         WRITE(numout,*) ' Starting year of experiment    tyrc14_beg = ', tyrc14_beg
98         WRITE(numout,*) '  '
99      ENDIF
100
101      !
102      IF( kc14typ == 2)    tyrc14_beg = 1950._wp - tyrc14_beg  ! BP to AD dates
103      ! set units
104      rlam14 = LOG(2._wp) / 5730._wp / rsiyea    ! C14 decay  rate: yr^-1 --> s^-1
105      !                                          ! radiocarbon half-life is 5730 yr
106   END SUBROUTINE trc_nam_c14
107   
108   !!======================================================================
109END MODULE trcnam_c14
Note: See TracBrowser for help on using the repository browser.