source: trunk/LMDZ.GENERIC/libf/phystd/phyredem.F90 @ 3300

Last change on this file since 3300 was 3100, checked in by bhatnags, 16 months ago

Generic-PCM

This commit updates the slab ocean module to a parallelisable dynamic slab ocean module. This is particularly relevant if you want to be able to use oceanic heat transport in parallel mode.

It has the following features:

(a) Computes sea ice creation and evolution.
(b) Snow has thermodynamic properties.
(c) Computes oceanic horizontal transport (diffusion & surface-wind driven Ekman transport).
(d) Can be used in parallel mode.

Required callphys.def flags:
The slab ocean and its dependencies can be activated with the following flags (already added to deftank):
## Ocean options
## ~
# Model slab-ocean (Main flag for slab ocean)
ok_slab_ocean = .true.
# The following flags can only be set to true if ok_slab_ocean is true
# Ekman transport
slab_ekman = .true.
# Ekman zonal advection
slab_ekman_zonadv = .true.
# Horizontal diffusion (default coef_hdiff=25000., can be changed)
slab_hdiff = .true.
# Slab-ocean timestep (in physics timesteps)
cpl_pas = 1
# Gent-McWilliams? Scheme (can only be true if slab_ekman is true)
slab_gm = .true.

Notes:
In the current state, the model crashes if moistadjustment = .true. Unsure whether this is due to the slab or is an inherent issue with moistadj (under investigation).

SB and EM

File size: 8.1 KB
Line 
1module phyredem
2
3implicit none
4
5contains
6
7subroutine physdem0(filename,lonfi,latfi,nsoil,ngrid,nlay,nq, &
8                         phystep,day_ini,time,airefi, &
9                         alb,ith,pzmea,pzstd,pzsig,pzgam,pzthe)
10! create physics restart file and write time-independent variables
11  use comsoil_h, only: volcapa, mlayer
12  use geometry_mod, only: cell_area
13  use surfdat_h, only: zmea, zstd, zsig, zgam, zthe, &
14                       emisice, emissiv,             &
15                       iceradius, dtemisice, phisfi
16  use iostart, only : open_restartphy, close_restartphy, &
17                      put_var, put_field, length
18  use mod_grid_phy_lmdz, only : klon_glo
19  use planete_mod, only: year_day, periastr, apoastr, peri_day, &
20                         obliquit, z0, lmixmin, emin_turb
21  use comcstfi_mod, only: rad, omeg, g, mugaz, rcp
22  use time_phylmdz_mod, only: daysec
23
24  implicit none
25
26  character(len=*), intent(in) :: filename
27  real,intent(in) :: lonfi(ngrid)
28  real,intent(in) :: latfi(ngrid)
29  integer,intent(in) :: nsoil
30  integer,intent(in) :: ngrid
31  integer,intent(in) :: nlay
32  integer,intent(in) :: nq
33  real,intent(in) :: phystep
34  real,intent(in) :: day_ini
35  real,intent(in) :: time
36  real,intent(in) :: airefi(ngrid)
37  real,intent(in) :: alb(ngrid)
38  real,intent(in) :: ith(ngrid,nsoil)
39  real,intent(in) :: pzmea(ngrid)
40  real,intent(in) :: pzstd(ngrid)
41  real,intent(in) :: pzsig(ngrid)
42  real,intent(in) :: pzgam(ngrid)
43  real,intent(in) :: pzthe(ngrid)
44 
45  real :: tab_cntrl(length) ! nb "length=100" defined in iostart module
46 
47  ! Create physics start file
48  call open_restartphy(filename)
49
50! tab_cntrl() contains run parameters
51  tab_cntrl(:)=0 ! initialization
52!cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
53! Fill control array tab_cntrl(:) with paramleters for this run
54!cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
55! Informations on the physics grid
56  tab_cntrl(1) = float(klon_glo)  ! number of nodes on physics grid
57  tab_cntrl(2) = float(nlay) ! number of atmospheric layers
58  tab_cntrl(3) = day_ini + int(time)         ! final day
59  tab_cntrl(4) = time -int(time)            ! final time of day
60
61! Informations about Mars, used by dynamics and physics
62  tab_cntrl(5) = rad      ! radius of Mars (m) ~3397200
63  tab_cntrl(6) = omeg     ! rotation rate (rad.s-1)
64  tab_cntrl(7) = g        ! gravity (m.s-2) ~3.72
65  tab_cntrl(8) = mugaz    ! Molar mass of the atmosphere (g.mol-1) ~43.49
66  tab_cntrl(9) = rcp      !  = r/cp  ~0.256793 (=kappa dans dynamique)
67  tab_cntrl(10) = daysec  ! length of a sol (s)  ~88775
68
69  tab_cntrl(11) = phystep  ! time step in the physics
70  tab_cntrl(12) = 0.
71  tab_cntrl(13) = 0.
72
73! Informations about Mars, only for physics
74  tab_cntrl(14) = year_day  ! length of year (sols) ~668.6
75  tab_cntrl(15) = periastr  ! min. star-planet distance (AU)
76  tab_cntrl(16) = apoastr   ! max. star-planet distance (AU)
77  tab_cntrl(17) = peri_day  ! date of periastron (sols since N. spring)
78  tab_cntrl(18) = obliquit  ! Obliquity of the planet (deg) ~23.98
79
80! Boundary layer and turbulence
81  tab_cntrl(19) = z0        ! surface roughness (m) ~0.01
82  tab_cntrl(20) = lmixmin   ! mixing length ~100
83  tab_cntrl(21) = emin_turb ! minimal energy ~1.e-8
84
85! Optical properties of polar caps and ground emissivity
86  tab_cntrl(24) = emisice(1)   ! Emissivity of northern cap ~0.95
87  tab_cntrl(25) = emisice(2)   ! Emissivity of southern cap ~0.95
88  tab_cntrl(26) = emissiv      ! Emissivity of martian soil ~.95
89  tab_cntrl(31) = iceradius(1) ! mean scat radius of CO2 snow (north)
90  tab_cntrl(32) = iceradius(2) ! mean scat radius of CO2 snow (south)
91  tab_cntrl(33) = dtemisice(1) ! time scale for snow metamorphism (north)
92  tab_cntrl(34) = dtemisice(2) ! time scale for snow metamorphism (south)
93
94  tab_cntrl(28) = 0.
95  tab_cntrl(29) = 0.
96  tab_cntrl(30) = 0.
97! Soil properties:
98  tab_cntrl(35) = volcapa ! soil volumetric heat capacity
99
100  call put_var("controle","Control parameters",tab_cntrl)
101 
102  ! Write the mid-layer depths
103  call put_var("soildepth","Soil mid-layer depth",mlayer)
104 
105  ! Write longitudes
106  call put_field("longitude","Longitudes of physics grid",lonfi)
107 
108  ! Write latitudes
109  call put_field("latitude","Latitudes of physics grid",latfi)
110 
111  ! Write mesh areas
112  call put_field("area","Mesh area",cell_area)
113 
114  ! Write surface geopotential
115  call put_field("phisfi","Geopotential at the surface",phisfi)
116 
117  ! Write surface albedo
118  call put_field("albedodat","Albedo of bare ground",alb)
119 
120  ! Subgrid topogaphy variables
121  call put_field("ZMEA","Relief: mean relief",zmea)
122  call put_field("ZSTD","Relief: standard deviation",zstd)
123  call put_field("ZSIG","Relief: sigma parameter",zsig)
124  call put_field("ZGAM","Relief: gamma parameter",zgam)
125  call put_field("ZTHE","Relief: theta parameter",zthe)
126 
127  ! Soil thermal inertia
128  call put_field("inertiedat","Soil thermal inertia",ith)
129 
130  ! Close file
131  call close_restartphy
132 
133end subroutine physdem0
134
135subroutine physdem1(filename,nsoil,ngrid,nlay,nq, &
136                    phystep,time,tsurf,tsoil,emis,q2,qsurf, &
137                    cloudfrac,totcloudfrac,hice, &
138                    rnat,pctsrf_sic,tslab,tsea_ice,sea_ice)
139  ! write time-dependent variable to restart file
140  use iostart, only : open_restartphy, close_restartphy, &
141                      put_var, put_field
142  use tracer_h, only: noms
143!  use slab_ice_h, only: noceanmx
144  USE ocean_slab_mod, ONLY: nslay
145  use callkeys_mod, only: ok_slab_ocean, calllott_nonoro
146  use nonoro_gwd_ran_mod, only: du_nonoro_gwd, dv_nonoro_gwd, &
147                                east_gwstress, west_gwstress
148
149  implicit none
150
151  character(len=*),intent(in) :: filename
152  integer,intent(in) :: nsoil
153  integer,intent(in) :: ngrid
154  integer,intent(in) :: nlay
155  integer,intent(in) :: nq
156  real,intent(in) :: phystep
157  real,intent(in) :: time
158  real,intent(in) :: tsurf(ngrid)
159  real,intent(in) :: tsoil(ngrid,nsoil)
160  real,intent(in) :: emis(ngrid)
161  real,intent(in) :: q2(ngrid,nlay+1)
162  real,intent(in) :: qsurf(ngrid,nq)
163  real,intent(in) :: cloudfrac(ngrid,nlay)
164  real,intent(in) :: totcloudfrac(ngrid)
165  real,intent(in) :: hice(ngrid)
166  real,intent(in) :: rnat(ngrid)
167  real,intent(in) :: pctsrf_sic(ngrid)
168  real,intent(in) :: tslab(ngrid,nslay)
169  real,intent(in) :: tsea_ice(ngrid)
170  real,intent(in) :: sea_ice(ngrid)
171!  real,intent(in) :: tice(ngrid)
172
173  integer :: iq
174 
175  ! Open file
176  call open_restartphy(filename)
177
178  ! First variable to write must be "Time", in order to correctly
179  ! set time counter in file
180  !call put_var("Time","Temps de simulation",time)
181 
182  ! Surface temperature
183  call put_field("tsurf","Surface temperature",tsurf)
184 
185  ! Soil temperature
186  call put_field("tsoil","Soil temperature",tsoil)
187 
188  ! Emissivity of the surface
189  call put_field("emis","Surface emissivity",emis)
190 
191  ! Planetary Boundary Layer
192  call put_field("q2","pbl wind variance",q2)
193 
194! cloud fraction and sea ice (NB: these should be optional... to be improved)
195  call put_field("cloudfrac","Cloud fraction",cloudfrac)
196  call put_field("totcloudfrac","Total fraction",totcloudfrac)
197  call put_field("hice","Height of oceanic ice",hice)
198
199 !Slab ocean
200 if(ok_slab_ocean) then
201   call put_field("rnat","Nature of surface",rnat)
202   call put_field("pctsrf_sic","Pourcentage sea ice",pctsrf_sic)
203   call put_field("tslab","Temperature slab ocean",tslab)
204   call put_field("tsea_ice","Temperature of top layer (seaice or snow)",tsea_ice)
205!   call put_field("tice","Temperature of seaice if snow on top",tice)
206   call put_field("sea_ice","Sea ice mass",sea_ice)
207 endif!(ok_slab_ocean)
208
209! tracers
210  if (nq>0) then
211    do iq=1,nq
212      call put_field(noms(iq),"tracer on surface",qsurf(:,iq))
213    enddo
214  endif ! of if (nq>0)
215
216! Non-orographic gavity waves
217if (calllott_nonoro) then
218   call put_field("du_nonoro_gwd","Zonal wind tendency due to GW",du_nonoro_gwd)
219   call put_field("dv_nonoro_gwd","Meridional wind tendency due to GW",dv_nonoro_gwd)
220   call put_field("east_gwstress","Eastward stress profile due to GW",east_gwstress)
221   call put_field("west_gwstress","Westward stress profile due to GW",west_gwstress)
222endif
223
224! close file
225      CALL close_restartphy
226!$OMP BARRIER
227
228end subroutine physdem1
229
230end module phyredem
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