| 1 |
dimitri |
1.1 |
Initialization (myTime .EQ. startTime in MITgcm) |
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| 3 |
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===> Ocean Sends/ Ice Receives (fields that are sent only once) |
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deltatimestep 1 Real*8 TimeIntervalTag |
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grid dimensions (Nx,Ny) 2 Integer OceanGridsizeTag |
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(grid locations - later?) |
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ice area Nx*Ny Real*8 AreaTag |
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ice thickness Nx*Ny Real*8 HeffTag |
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ice salinity Nx*Ny Real*8 HsaltTag |
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snow thickness Nx*Ny Real*8 HsnowTag |
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===> Ocean Sends/ Ice Receives |
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ocean model time 1 Real*8 OceanTimeTag |
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boundary ice area 2*(Nx+Ny)-4 Real*8 AreaBcTag |
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boundary ice thickness 2*(Nx+Ny)-4 Real*8 HeffBcTag |
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boundary ice salinity 2*(Nx+Ny)-4 Real*8 HsaltBcTag |
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boundary snow thickness 2*(Nx+Ny)-4 Real*8 HsnowBcTag |
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boundary u ice 2*(Nx+Ny)-6 Real*8 UiceBcTag |
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boundary v ice 2*(Nx+Ny)-6 Real*8 ViceBcTag |
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u-wind velocity Nx*Ny Real*8 UwindTag |
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v-wind velocity Nx*Ny Real*8 VwindTag |
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downward longwave radiation Nx*Ny Real*8 LwDownTag |
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downward shortwave radiation Nx*Ny Real*8 SwDownTag |
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air temperature Nx*Ny Real*8 AtempTag |
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humidity Nx*Ny Real*8 AqhTag |
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precipitation Nx*Ny Real*8 PrecipTag |
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ocean surface temperature Nx*Ny Real*8 SstTag |
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surface u current Nx*Ny Real*8 UvelTag |
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surface v current Nx*Ny Real*8 VvelTag |
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===> Ice Sends/Ocean Receives |
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ice model time 1 Real*8 IceTimeTag |
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ice area Nx*Ny Real*8 AreaTag (initial ice area) |
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ice thickness Nx*Ny Real*8 HeffTag (initial ice thickness) |
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ice salinity Nx*Ny Real*8 HsaltTag (initial ice salinity) |
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snow thickness Nx*Ny Real*8 HsnowTag (initial snow thickness) |
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u surface stress Nx*Ny Real*8 UstressTag (surface v current) |
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v surface stress Nx*Ny Real*8 VstressTag (array of 2) |
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residual shortwave Nx*Ny Real*8 SwResidTag (array of 1) |
| 40 |
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heat flux Nx*Ny Real*8 HeatFluxTag (array of 1) |
| 41 |
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freshwater flux Nx*Ny Real*8 WaterFluxTag (array of 1) |
| 42 |
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salt flux Nx*Ny Real*8 SaltFluxTag (array of 1) |
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===================================== |
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Each deltatimestep: |
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| 48 |
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===> Ocean Sends/Ice Receives |
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ocean model time 1 Real*8 OceanTimeTag |
| 50 |
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boundary ice area 2*(Nx+Ny)-4 Real*8 AreaBcTag |
| 51 |
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boundary ice thickness 2*(Nx+Ny)-4 Real*8 HeffBcTag |
| 52 |
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boundary ice salinity 2*(Nx+Ny)-4 Real*8 HsaltBcTag |
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boundary snow thickness 2*(Nx+Ny)-4 Real*8 HsnowBcTag |
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boundary u ice 2*(Nx+Ny)-6 Real*8 UiceBcTag |
| 55 |
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boundary v ice 2*(Nx+Ny)-6 Real*8 ViceBcTag |
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u-wind velocity Nx*Ny Real*8 UwindTag |
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v-wind velocity Nx*Ny Real*8 VwindTag |
| 58 |
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downward longwave radiation Nx*Ny Real*8 LwDownTag |
| 59 |
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downward shortwave radiation Nx*Ny Real*8 SwDownTag |
| 60 |
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air temperature Nx*Ny Real*8 AtempTag |
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humidity Nx*Ny Real*8 AqhTag |
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precipitation Nx*Ny Real*8 PrecipTag |
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ocean surface temperature Nx*Ny Real*8 SstTag |
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surface u current Nx*Ny Real*8 UvelTag |
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surface v current Nx*Ny Real*8 VvelTag |
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| 67 |
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===> Ice Sends/Ocean Receives |
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ice model time 1 Real*8 IceTimeTag |
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ice area Nx*Ny Real*8 AreaTag |
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ice thickness Nx*Ny Real*8 HeffTag |
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ice salinity Nx*Ny Real*8 HsaltTag |
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snow thickness Nx*Ny Real*8 HsnowTag |
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u surface stress Nx*Ny Real*8 UstressTag |
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v surface stress Nx*Ny Real*8 VstressTag |
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residual shortwave Nx*Ny Real*8 SwResidTag |
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heat flux Nx*Ny Real*8 HeatFluxTag |
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freshwater flux Nx*Ny Real*8 WaterFluxTag |
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salt flux Nx*Ny Real*8 SaltFluxTag |
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===================================== |
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DETAILS: |
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1. start and initialize ocean + ice codes |
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=========================================================== |
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2. ocean sends |
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deltatimestep |
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| 94 |
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ocean model time "myTime" (s) |
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| 96 |
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Then on tracer grid: |
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| 98 |
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grid information + landmask TBD |
| 99 |
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| 100 |
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initial ice area (fractional: 0-1) at the tracer points |
| 101 |
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C AREA - fractional ice-covered area in m^2/m^2 |
| 102 |
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C at center of grid, i.e., tracer point |
| 103 |
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C 0 is no cover, 1 is 100% cover |
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| 105 |
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initial ice thickness (mean thickness in the grid box in m) |
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actual thickness for single-class ice would be thickness/area |
| 107 |
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at the tracer points |
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C HEFF - effective ice thickness in m |
| 109 |
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C at center of grid, i.e., tracer point |
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C note: for non-zero AREA, actual ice |
| 111 |
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C thickness is HEFF / AREA |
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| 113 |
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initial snow thickness (mean thickness, m) at the tracer points |
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C HSNOW - effective snow thickness in m |
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C at center of grid, i.e., tracer point |
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C note: for non-zero AREA, actual snow |
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C thickness is HSNOW / AREA |
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| 119 |
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initial ice salinity at the tracer points |
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C HSALT - effective sea ice salinity in g/m^2 |
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C at center of grid, i.e., tracer point |
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open boundary u-ice velocity |
| 124 |
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specified at the inside edge of the outer grid cells |
| 125 |
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southwest C-grid locations for normal component and at the |
| 126 |
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southwest C-grid locations for tangential |
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C UICE - zonal ice velocity in m/s at South-West B-grid |
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C (or C-grid #ifdef SEAICE_CGRID) U point |
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C >0 from West to East |
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| 131 |
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open boundary v-ice velocity |
| 132 |
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specified at the inside edge of the outer grid cells |
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southwest C-grid locations for normal component and at the |
| 134 |
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southwest C-grid locations for tangential |
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C VICE - meridional ice velocity in m/s at South-West B-grid |
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C (or C-grid #ifdef SEAICE_CGRID) V point |
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C >0 from South to North |
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C note: the South-West B-grid U and V points are on |
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C the lower, left-hand corner of each grid cell |
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| 141 |
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10-m u-wind at the tracer points |
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c uwind :: Surface (10-m) zonal wind velocity in m/s |
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c > 0 for increase in uVel, which is west to |
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c east for cartesian and spherical polar grids |
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c Typical range: -10 < uwind < 10 |
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c Input or input/output field |
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10-m v-wind at the tracer points |
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c vwind :: Surface (10-m) meridional wind velocity in m/s |
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c > 0 for increase in vVel, which is south to |
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c north for cartesian and spherical polar grids |
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c Typical range: -10 < vwind < 10 |
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c Input or input/output field |
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downward longwave at the tracer points |
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c lwdown :: Downward longwave radiation in W/m^2 |
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c > 0 for increase in theta (ocean warming) |
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c Typical range: 50 < lwdown < 450 |
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c Input/output field |
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downward shortwave at the tracer points |
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c swdown :: Downward shortwave radiation in W/m^2 |
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c > 0 for increase in theta (ocean warming) |
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c Typical range: 0 < swdown < 450 |
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c Input/output field |
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2-m air temperature at the tracer points |
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c atemp :: Surface (2-m) air temperature in deg K |
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c Typical range: 200 < atemp < 300 |
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c Input or input/output field |
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2-m humidity at the tracer points |
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c aqh :: Surface (2m) specific humidity in kg/kg |
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c Typical range: 0 < aqh < 0.02 |
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c Input or input/output field |
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precipitation at the tracer points |
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c precip :: Precipitation in m/s |
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c > 0 for decrease in salt (ocean salinity) |
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c Typical range: 0 < precip < 5e-7 |
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c Input or input/output field |
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| 183 |
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sea surface temperature at the tracer points |
| 184 |
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C theta - potential temperature (oC, held at pressure/tracer point) |
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| 186 |
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sea surface u-vel |
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C uVel - zonal velocity (m/s, i=1 held at western face) |
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at southwest c-grid locations |
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sea surface v-vel |
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C vVel - meridional velocity (m/s, j=1 held at southern face) |
| 192 |
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at southwest c-grid locations |
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=========================================================== |
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| 196 |
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3. ice receives 2., computes initial ice conditions and sends on tracer grid |
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| 198 |
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ice model time (s) |
| 199 |
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ice area at tracer point |
| 200 |
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ice thickness at tracer point |
| 201 |
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ice salinity at tracer point |
| 202 |
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snow thickness at tracer point |
| 203 |
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u-stress under ice at southwest b-grid locations |
| 204 |
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v-stress under ice at southwest b-grid locations |
| 205 |
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residual shortwave under ice at tracer point |
| 206 |
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heat flux (less shortwave) at tracer point |
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freshwater flux at tracer point |
| 208 |
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salt flux at tracer point |
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| 210 |
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=========================================================== |
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4a. ice model steps forward by deltatimestep |
| 213 |
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initially hardwired to 20 minutes |
| 214 |
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| 215 |
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4b. ocean model receives 3. and steps forward by deltatimestep |
| 216 |
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initially hardwired to 20 minutes |
| 217 |
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=========================================================== |
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5a. ocean sends on tracer grid |
| 221 |
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timestep |
| 222 |
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open boundary ice area at tracer point |
| 223 |
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open boundary ice thickness at tracer point |
| 224 |
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open boundary snow thickness at tracer point |
| 225 |
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open boundary ice salinity at tracer point |
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open boundary u-ice velocity (see 2.) |
| 227 |
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open boundary v-ice velocity (see 2.) |
| 228 |
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10-m u-wind (see 2.) |
| 229 |
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10-m v-wind (see 2.) |
| 230 |
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downward longwave (see 2.) |
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downward shortwave (see 2.) |
| 232 |
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2-m air temperature (see 2.) |
| 233 |
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2-m humidity (see 2.) |
| 234 |
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precipitation (see 2.) |
| 235 |
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sea surface temperature (see 2.) |
| 236 |
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sea surface u-vel (see 2.) |
| 237 |
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sea surface v-vel (see 2.) |
| 238 |
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| 239 |
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=========================================================== |
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| 241 |
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5b. ice sends on tracer grid |
| 242 |
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ice model time (s) |
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ice area at tracer point |
| 245 |
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ice thickness at tracer point |
| 246 |
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ice salinity at tracer point |
| 247 |
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snow thickness at tracer point |
| 248 |
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u-stress under ice at southwest b-grid locations |
| 249 |
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v-stress under ice at southwest b-grid locations |
| 250 |
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residual shortwave under ice at tracer point |
| 251 |
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heat flux (less shortwave) at tracer point |
| 252 |
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freshwater flux at tracer point |
| 253 |
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salt flux at tracer point |
| 254 |
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| 255 |
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=========================================================== |
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6a. ocean model receives 5b. and steps forward by deltatimestep |
| 258 |
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initially hardwired to 20 minutes |
| 259 |
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| 260 |
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6b. ice model receives 5a. steps forward by deltatimestep |
| 261 |
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initially hardwired to 20 minutes |
| 262 |
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| 263 |
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=========================================================== |
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LOOP to 5a. and 5b. |
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