/[MITgcm]/MITgcm_contrib/MPMice/beaufort/CPL_README.txt
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revision 1.1 by dimitri, Sun May 31 13:25:42 2009 UTC revision 1.4 by dimitri, Thu Mar 22 02:15:58 2012 UTC
# Line 9  ice thickness                Nx*Ny Line 9  ice thickness                Nx*Ny
9  ice salinity                 Nx*Ny       Real*8  HsaltTag  ice salinity                 Nx*Ny       Real*8  HsaltTag
10  snow thickness               Nx*Ny       Real*8  HsnowTag  snow thickness               Nx*Ny       Real*8  HsnowTag
11    
 ===> Ocean Sends/ Ice Receives  
 ocean model time             1           Real*8  OceanTimeTag  
 boundary ice area            2*(Nx+Ny)-4 Real*8  AreaBcTag  
 boundary ice thickness       2*(Nx+Ny)-4 Real*8  HeffBcTag  
 boundary ice salinity        2*(Nx+Ny)-4 Real*8  HsaltBcTag  
 boundary snow thickness      2*(Nx+Ny)-4 Real*8  HsnowBcTag  
 boundary u ice               2*(Nx+Ny)-6 Real*8  UiceBcTag  
 boundary v ice               2*(Nx+Ny)-6 Real*8  ViceBcTag  
 u-wind velocity              Nx*Ny       Real*8  UwindTag  
 v-wind velocity              Nx*Ny       Real*8  VwindTag  
 downward longwave radiation  Nx*Ny       Real*8  LwDownTag  
 downward shortwave radiation Nx*Ny       Real*8  SwDownTag  
 air temperature              Nx*Ny       Real*8  AtempTag  
 humidity                     Nx*Ny       Real*8  AqhTag  
 precipitation                Nx*Ny       Real*8  PrecipTag  
 ocean surface temperature    Nx*Ny       Real*8  SstTag  
 surface u current            Nx*Ny       Real*8  UvelTag  
 surface v current            Nx*Ny       Real*8  VvelTag  
   
 ===> Ice Sends/Ocean Receives  
 ice model time               1           Real*8  IceTimeTag  
 ice area                     Nx*Ny       Real*8  AreaTag (initial ice area)  
 ice thickness                Nx*Ny       Real*8  HeffTag (initial ice thickness)  
 ice salinity                 Nx*Ny       Real*8  HsaltTag (initial ice salinity)  
 snow thickness               Nx*Ny       Real*8  HsnowTag (initial snow thickness)  
 u surface stress             Nx*Ny       Real*8  UstressTag (surface v current)  
 v surface stress             Nx*Ny       Real*8  VstressTag (array of 2)  
 residual shortwave           Nx*Ny       Real*8  SwResidTag (array of 1)  
 heat flux                    Nx*Ny       Real*8  HeatFluxTag (array of 1)  
 freshwater flux              Nx*Ny       Real*8  WaterFluxTag (array of 1)  
 salt flux                    Nx*Ny       Real*8  SaltFluxTag (array of 1)  
   
12  =====================================  =====================================
13    
14  Each deltatimestep:  Each deltatimestep:
# Line 61  air temperature              Nx*Ny Line 29  air temperature              Nx*Ny
29  humidity                     Nx*Ny       Real*8  AqhTag  humidity                     Nx*Ny       Real*8  AqhTag
30  precipitation                Nx*Ny       Real*8  PrecipTag  precipitation                Nx*Ny       Real*8  PrecipTag
31  ocean surface temperature    Nx*Ny       Real*8  SstTag  ocean surface temperature    Nx*Ny       Real*8  SstTag
32    ocean surface salinity       Nx*Ny       Real*8  SssTag
33  surface u current            Nx*Ny       Real*8  UvelTag  surface u current            Nx*Ny       Real*8  UvelTag
34  surface v current            Nx*Ny       Real*8  VvelTag  surface v current            Nx*Ny       Real*8  VvelTag
35    
# Line 70  ice area                     Nx*Ny Line 39  ice area                     Nx*Ny
39  ice thickness                Nx*Ny       Real*8  HeffTag  ice thickness                Nx*Ny       Real*8  HeffTag
40  ice salinity                 Nx*Ny       Real*8  HsaltTag  ice salinity                 Nx*Ny       Real*8  HsaltTag
41  snow thickness               Nx*Ny       Real*8  HsnowTag  snow thickness               Nx*Ny       Real*8  HsnowTag
42    u ice velocity               Nx*Ny       Real*8  UiceTag
43    v ice velocity               Nx*Ny       Real*8  ViceTag
44  u surface stress             Nx*Ny       Real*8  UstressTag  u surface stress             Nx*Ny       Real*8  UstressTag
45  v surface stress             Nx*Ny       Real*8  VstressTag  v surface stress             Nx*Ny       Real*8  VstressTag
46  residual shortwave           Nx*Ny       Real*8  SwResidTag  residual shortwave           Nx*Ny       Real*8  SwResidTag
# Line 89  DETAILS: Line 60  DETAILS:
60    
61  2. ocean sends  2. ocean sends
62    
63  deltatimestep  **** initial time step only *******************************
64    
65  ocean model time "myTime" (s)  deltatimestep                1           Real*8  TimeIntervalTag
66    
67    grid dimensions (Nx,Ny)      2           Integer OceanGridsizeTag
68    
69  Then on tracer grid:  Then on tracer grid:
70    
71  grid information + landmask  TBD  NOT YET IMPLEMENTED: grid information + landmask
72    
73  initial ice area (fractional: 0-1) at the tracer points  initial ice area (fractional: 0-1) at the tracer points
74  C     AREA  - fractional ice-covered area in m^2/m^2  C     AREA  - fractional ice-covered area in m^2/m^2
# Line 110  C             at center of grid, i.e., t Line 83  C             at center of grid, i.e., t
83  C             note: for non-zero AREA, actual ice  C             note: for non-zero AREA, actual ice
84  C                thickness is HEFF / AREA  C                thickness is HEFF / AREA
85    
86    initial ice salinity at the tracer points
87    C     HSALT - effective sea ice salinity in g/m^2
88    C             at center of grid, i.e., tracer point
89    
90  initial snow thickness (mean thickness, m) at the tracer points  initial snow thickness (mean thickness, m) at the tracer points
91  C     HSNOW - effective snow thickness in m  C     HSNOW - effective snow thickness in m
92  C             at center of grid, i.e., tracer point  C             at center of grid, i.e., tracer point
93  C             note: for non-zero AREA, actual snow  C             note: for non-zero AREA, actual snow
94  C                thickness is HSNOW / AREA  C                thickness is HSNOW / AREA
95    
96  initial ice salinity at the tracer points  **** every time step **************************************
97  C     HSALT - effective sea ice salinity in g/m^2  
98  C             at center of grid, i.e., tracer point  ocean model time "myTime" (s)
99    
100    boundary ice area            2*(Nx+Ny)-4 Real*8  AreaBcTag
101    
102    boundary ice thickness       2*(Nx+Ny)-4 Real*8  HeffBcTag
103    
104    boundary ice salinity        2*(Nx+Ny)-4 Real*8  HsaltBcTag
105    
106    boundary snow thickness      2*(Nx+Ny)-4 Real*8  HsnowBcTag
107    
108  open boundary u-ice velocity  open boundary u-ice velocity
109  specified at the inside edge of the outer grid cells  specified at the inside edge of the outer grid cells
110  southwest C-grid locations for normal component and at the  southwest C-grid locations for normal component and at the
111  southwest C-grid locations for tangential  southwest C-grid locations for tangential
112  C     UICE  - zonal ice velocity in m/s at South-West B-grid  C     UICE  - zonal ice velocity in m/s at South-West C-grid U point
 C             (or C-grid #ifdef SEAICE_CGRID) U point  
113  C             >0 from West to East  C             >0 from West to East
114    
115  open boundary v-ice velocity  open boundary v-ice velocity
116  specified at the inside edge of the outer grid cells  specified at the inside edge of the outer grid cells
117  southwest C-grid locations for normal component and at the  southwest C-grid locations for normal component and at the
118  southwest C-grid locations for tangential  southwest C-grid locations for tangential
119  C     VICE  - meridional ice velocity in m/s at South-West B-grid  C     VICE  - meridional ice velocity in m/s at South-West C-grid V point
 C             (or C-grid #ifdef SEAICE_CGRID) V point  
120  C             >0 from South to North  C             >0 from South to North
 C             note: the South-West B-grid U and V points are on  
 C                the lower, left-hand corner of each grid cell  
121    
122  10-m u-wind at the tracer points  10-m u-wind at the tracer points
123  c     uwind     :: Surface (10-m) zonal wind velocity in m/s  c     uwind     :: Surface (10-m) zonal wind velocity in m/s
# Line 196  at southwest c-grid locations Line 177  at southwest c-grid locations
177  3. ice receives 2., computes initial ice conditions and sends on tracer grid  3. ice receives 2., computes initial ice conditions and sends on tracer grid
178    
179  ice model time (s)  ice model time (s)
180    
181  ice area at tracer point  ice area at tracer point
182    C     AREA  :: fractional ice-covered area in m^2/m^2
183    C              at center of grid, i.e., tracer point
184    C              0 is no cover, 1 is 100% cover
185    
186  ice thickness at tracer point  ice thickness at tracer point
187    C     HEFF  :: effective ice thickness in m
188    C              at center of grid, i.e., tracer point
189    C              note: for non-zero AREA,
190    C                    actual ice thickness is HEFF / AREA
191    
192  ice salinity at tracer point  ice salinity at tracer point
193    C     HSALT :: effective sea ice salinity in g/m^2
194    C              at center of grid, i.e., tracer point
195    
196  snow thickness at tracer point  snow thickness at tracer point
197  u-stress under ice at southwest b-grid locations  C     HSNOW :: effective snow thickness in m
198  v-stress under ice at southwest b-grid locations  C              at center of grid, i.e., tracer point
199    C              note: for non-zero AREA, actual snow thickness is HSNOW / AREA
200    
201    u ice velocity at southwest c-grid locations
202    C     UICE  - zonal ice velocity in m/s at South-West C-grid U point
203    C             >0 from West to East
204    
205    v ice velocity at southwest c-grid locations
206    C     VICE  - meridional ice velocity in m/s at South-West C-grid V point
207    C             >0 from South to North
208    
209    u-stress under ice at southwest c-grid locations
210    C     fu    :: Zonal surface wind stress in N/m^2
211    C              > 0 for increase in uVel, which is west to
212    C                  east for cartesian and spherical polar grids
213    C              Typical range: -0.5 < fu < 0.5
214    C              Southwest C-grid U point
215    
216    v-stress under ice at southwest c-grid locations
217    C     fv    :: Meridional surface wind stress in N/m^2
218    C              > 0 for increase in vVel, which is south to
219    C                  north for cartesian and spherical polar grids
220    C              Typical range: -0.5 < fv < 0.5
221    C              Southwest C-grid V point
222    
223  residual shortwave under ice at tracer point  residual shortwave under ice at tracer point
224    C     Qsw   :: Net upward shortwave radiation in W/m^2
225    C              Qsw = - ( downward - ice and snow absorption - reflected )
226    C              > 0 for decrease in theta (ocean cooling)
227    C              Typical range: -350 < Qsw < 0
228    C              Southwest C-grid tracer point
229    
230  heat flux (less shortwave) at tracer point  heat flux (less shortwave) at tracer point
231    C     Qnet  :: Net upward surface heat flux (including shortwave) in W/m^2
232    C              Qnet = latent + sensible + net longwave + net shortwave
233    C              > 0 for decrease in theta (ocean cooling)
234    C              Typical range: -250 < Qnet < 600
235    C              Southwest C-grid tracer point
236    
237  freshwater flux at tracer point  freshwater flux at tracer point
238    C     EmPmR :: Net upward freshwater flux in kg/m2/s
239    C              EmPmR = Evaporation - precipitation - runoff
240    C              > 0 for increase in salt (ocean salinity)
241    C              Typical range: -1e-4 < EmPmR < 1e-4
242    C              Southwest C-grid tracer point
243    C           NOTE: for backward compatibility EmPmRfile is specified in
244    C                 m/s when using external_fields_load.F.  It is converted
245    C                 to kg/m2/s by multiplying by rhoConstFresh.
246    
247  salt flux at tracer point  salt flux at tracer point
248    C  saltFlux :: Net upward salt flux in psu.kg/m^2/s
249    C              flux of Salt taken out of the ocean per time unit (second).
250    C              Note: a) only used when salty sea-ice forms or melts.
251    C                    b) units: when salinity (unit= psu) is expressed
252    C                       in g/kg, saltFlux unit becomes g/m^2/s.
253    C              > 0 for decrease in SSS.
254    C              Southwest C-grid tracer point
255    
256  ===========================================================  ===========================================================
257    
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