1 | MODULE icethd_zdf |
---|
2 | !!====================================================================== |
---|
3 | !! *** MODULE icethd_zdf *** |
---|
4 | !! sea-ice: master routine for vertical heat diffusion in sea ice |
---|
5 | !!====================================================================== |
---|
6 | !! History : 4.0 ! 2018 (C. Rousset) Original code SI3 |
---|
7 | !!---------------------------------------------------------------------- |
---|
8 | #if defined key_si3 |
---|
9 | !!---------------------------------------------------------------------- |
---|
10 | !! 'key_si3' SI3 sea-ice model |
---|
11 | !!---------------------------------------------------------------------- |
---|
12 | !! ice_thd_zdf : select the appropriate routine for vertical heat diffusion calculation |
---|
13 | !! ice_thd_zdf_BL99 : heat diffusion from Bitz and Lipscomb 1999 |
---|
14 | !! ice_thd_zdf_init : initialization |
---|
15 | !!---------------------------------------------------------------------- |
---|
16 | USE dom_oce ! ocean space and time domain |
---|
17 | USE phycst ! physical constants (ocean directory) |
---|
18 | USE ice ! sea-ice: variables |
---|
19 | USE icethd_zdf_BL99 ! sea-ice: vertical diffusion (Bitz and Lipscomb, 1999) |
---|
20 | ! |
---|
21 | USE in_out_manager ! I/O manager |
---|
22 | USE lib_mpp ! MPP library |
---|
23 | USE lib_fortran ! fortran utilities (glob_sum + no signed zero) |
---|
24 | |
---|
25 | IMPLICIT NONE |
---|
26 | PRIVATE |
---|
27 | |
---|
28 | PUBLIC ice_thd_zdf ! called by icethd |
---|
29 | PUBLIC ice_thd_zdf_init ! called by icestp |
---|
30 | |
---|
31 | INTEGER :: nice_zdf ! Choice of the type of vertical heat diffusion formulation |
---|
32 | ! ! associated indices: |
---|
33 | INTEGER, PARAMETER :: np_BL99 = 1 ! Bitz and Lipscomb (1999) |
---|
34 | !! INTEGER, PARAMETER :: np_XXXX = 2 |
---|
35 | |
---|
36 | !!** namelist (namthd_zdf) ** |
---|
37 | LOGICAL :: ln_zdf_BL99 ! Heat diffusion follows Bitz and Lipscomb (1999) |
---|
38 | |
---|
39 | !!---------------------------------------------------------------------- |
---|
40 | !! NEMO/ICE 4.0 , NEMO Consortium (2018) |
---|
41 | !! $Id$ |
---|
42 | !! Software governed by the CeCILL license (see ./LICENSE) |
---|
43 | !!---------------------------------------------------------------------- |
---|
44 | CONTAINS |
---|
45 | |
---|
46 | SUBROUTINE ice_thd_zdf |
---|
47 | !!------------------------------------------------------------------- |
---|
48 | !! *** ROUTINE ice_thd_zdf *** |
---|
49 | !! |
---|
50 | !! ** Purpose : select the appropriate routine for the computation |
---|
51 | !! of vertical diffusion |
---|
52 | !!------------------------------------------------------------------- |
---|
53 | ! |
---|
54 | SELECT CASE ( nice_zdf ) ! Choose the vertical heat diffusion solver |
---|
55 | ! |
---|
56 | ! !-------------! |
---|
57 | CASE( np_BL99 ) ! BL99 solver ! |
---|
58 | ! !-------------! |
---|
59 | SELECT CASE( nice_jules ) |
---|
60 | ! ! No Jules coupler ==> default option |
---|
61 | CASE( np_jules_OFF ) ; CALL ice_thd_zdf_BL99 ( np_jules_OFF ) |
---|
62 | ! |
---|
63 | ! ! Jules coupler is emulated => 1st call to get the needed fields (conduction...) |
---|
64 | ! 2nd call to use these fields to calculate heat diffusion |
---|
65 | CASE( np_jules_EMULE ) ; CALL ice_thd_zdf_BL99 ( np_jules_EMULE ) |
---|
66 | CALL ice_thd_zdf_BL99 ( np_jules_ACTIVE ) |
---|
67 | ! |
---|
68 | ! ! Jules coupler is active ==> Met Office default option |
---|
69 | CASE( np_jules_ACTIVE ) ; CALL ice_thd_zdf_BL99 ( np_jules_ACTIVE ) |
---|
70 | ! |
---|
71 | END SELECT |
---|
72 | ! |
---|
73 | END SELECT |
---|
74 | ! |
---|
75 | END SUBROUTINE ice_thd_zdf |
---|
76 | |
---|
77 | |
---|
78 | SUBROUTINE ice_thd_zdf_init |
---|
79 | !!----------------------------------------------------------------------- |
---|
80 | !! *** ROUTINE ice_thd_zdf_init *** |
---|
81 | !! |
---|
82 | !! ** Purpose : Physical constants and parameters associated with |
---|
83 | !! ice thermodynamics |
---|
84 | !! |
---|
85 | !! ** Method : Read the namthd_zdf namelist and check the parameters |
---|
86 | !! called at the first timestep (nit000) |
---|
87 | !! |
---|
88 | !! ** input : Namelist namthd_zdf |
---|
89 | !!------------------------------------------------------------------- |
---|
90 | INTEGER :: ios, ioptio ! Local integer |
---|
91 | !! |
---|
92 | NAMELIST/namthd_zdf/ ln_zdf_BL99, ln_cndi_U64, ln_cndi_P07, rn_cnd_s, rn_kappa_i |
---|
93 | !!------------------------------------------------------------------- |
---|
94 | ! |
---|
95 | REWIND( numnam_ice_ref ) ! Namelist namthd_zdf in reference namelist : Ice thermodynamics |
---|
96 | READ ( numnam_ice_ref, namthd_zdf, IOSTAT = ios, ERR = 901) |
---|
97 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namthd_zdf in reference namelist', lwp ) |
---|
98 | REWIND( numnam_ice_cfg ) ! Namelist namthd_zdf in configuration namelist : Ice thermodynamics |
---|
99 | READ ( numnam_ice_cfg, namthd_zdf, IOSTAT = ios, ERR = 902 ) |
---|
100 | 902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namthd_zdf in configuration namelist', lwp ) |
---|
101 | IF(lwm) WRITE( numoni, namthd_zdf ) |
---|
102 | ! |
---|
103 | IF(lwp) THEN ! control print |
---|
104 | WRITE(numout,*) |
---|
105 | WRITE(numout,*) 'ice_thd_zdf_init: Ice vertical heat diffusion' |
---|
106 | WRITE(numout,*) '~~~~~~~~~~~~~~~~' |
---|
107 | WRITE(numout,*) ' Namelist namthd_zdf:' |
---|
108 | WRITE(numout,*) ' Bitz and Lipscomb (1999) formulation ln_zdf_BL99 = ', ln_zdf_BL99 |
---|
109 | WRITE(numout,*) ' thermal conductivity in the ice (Untersteiner 1964) ln_cndi_U64 = ', ln_cndi_U64 |
---|
110 | WRITE(numout,*) ' thermal conductivity in the ice (Pringle et al 2007) ln_cndi_P07 = ', ln_cndi_P07 |
---|
111 | WRITE(numout,*) ' thermal conductivity in the snow rn_cnd_s = ', rn_cnd_s |
---|
112 | WRITE(numout,*) ' extinction radiation parameter in sea ice rn_kappa_i = ', rn_kappa_i |
---|
113 | ENDIF |
---|
114 | ! |
---|
115 | IF ( ( ln_cndi_U64 .AND. ln_cndi_P07 ) .OR. ( .NOT. ln_cndi_U64 .AND. .NOT. ln_cndi_P07 ) ) THEN |
---|
116 | CALL ctl_stop( 'ice_thd_zdf_init: choose 1 and only 1 formulation for thermal conduction (ln_cndi_U64 or ln_cndi_P07)' ) |
---|
117 | ENDIF |
---|
118 | ! !== set the choice of ice vertical thermodynamic formulation ==! |
---|
119 | ioptio = 0 |
---|
120 | IF( ln_zdf_BL99 ) THEN ; ioptio = ioptio + 1 ; nice_zdf = np_BL99 ; ENDIF ! BL99 thermodynamics (linear liquidus + constant thermal properties) |
---|
121 | !! IF( ln_zdf_XXXX ) THEN ; ioptio = ioptio + 1 ; nice_zdf = np_XXXX ; ENDIF |
---|
122 | IF( ioptio /= 1 ) CALL ctl_stop( 'ice_thd_init: one and only one ice thermo option has to be defined ' ) |
---|
123 | ! |
---|
124 | END SUBROUTINE ice_thd_zdf_init |
---|
125 | |
---|
126 | #else |
---|
127 | !!---------------------------------------------------------------------- |
---|
128 | !! Default option Dummy Module No SI3 sea-ice model |
---|
129 | !!---------------------------------------------------------------------- |
---|
130 | #endif |
---|
131 | |
---|
132 | !!====================================================================== |
---|
133 | END MODULE icethd_zdf |
---|