UNITS
mass Kg (kilogram)
time s (second)
distance m (meter)
density Kg/m^3
temperature K (Kelvin)
degree C = K - 273.15
salinity PSU (practical salinity units)
PSU is about the same as PPT (parts per thousand)
but is found by measuring conductivity
energy J (joule) = Kg*m^2/s^2
force N (Newton)= Kg*m/s^2
power W (watt) = Kg*m^2/s^3
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TIME INDEPENDENT VARIABLES:
--------------------------
FOH 'f over H', coriolis/depth(i,j) (1/s)
DELX meridional grid spacing(i,j) (m)
DELY zonal grid spacing(i,j) (m)
H_VALUES layer thicknesses (i,j,k) (m)
TOTAL_DEPTH ocean depth(i,j) (m)
RELAX coefficient(i,j) for surface restoring
SPONGE coefficient(i,j) for sponge restoring uniformly with depth
ANOMALY coefficient(i,j) for time dependent surface forcing anomalies
KMAP multiplicative diffusion coefficient (dimensionless)
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SURFACE INSTANTANEOUS VARIABLES:
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WNSP surface windspeed (m/s)
UWND surface zonal wind (m/s)
VWND surface meridional wind (m/s)
UWND_ustar zonal atmospheric eddy heat transport (m/s)
VWND_vstar meridional atmospheric eddy heat transport (m/s)
SSS sea surface salinity (PSU)
SST ocean temperature at surface (degree C)
SOLAR_qisw cloud (but not albedo) corrected incoming short wave radiation
(W/m^2)
SOLAR short wave (including albedo) flux (W/m^2)
LATENT latent heat flux (W/m^2)
SENSIBLE sensible heat flux (W/m^2)
LONGWAVE longwave net radiation (W/m^2)
DEFICIT flux due to surface restoring to given SST (if used) (W/m^2)
CLDFR cloud fraction (used for longwave radiation only) (0-1)
(e.g., CICE,HICE,THICE)
CICE ice concentration (0-1)
HICE ice thickness (m)
THICE ice `heat content' (K*m)
UICE zonal ice velocity (m/s)
VICE meridional ice velocity (m/s)
QIOS ice-ocean heat flux (W/m^2)
BRNE fresh water flux melt/freeze (m/s)
PPI total precipitation falling on ice and ocean (m/s)
PP precip only over water (m/s)
PSI barotropic stream function (m^3/s)
U_BAR zonal barotropic current (m/s)
V_BAR meridional barotropic current (m/s)
TAUX zonal wind stress acting on ocean (N/m^2)
TAUY meridional wind stress acting on ocean (N/m^2)
KPP_hblt KPP boundary layer depth (m)
IMLD instantaneous number of layers in mixed layer (m)
PBLHUM aml humidity (kg/kg)
PBLTEM aml potential temperature (K)
AIRHUM humidity from data (kg/kg)
AIRTEM potential temperature from data (K)
TSNW 'snow' temperature (K)
RH aml relative humidity (0-1)
RLHI latent heat flux ice-atmos (W/m^2)
SHI sensible heat flux ice-atmos (W/m^2)
QLWI long wave net radiation ice-atmos (W/m^2)
QSWI short wave (incl. albedo ice-atmos (W/m^2)
ALBEDO surface albedo ([0-1])
HFLX surface heat flux (W/m^2)
SFLX surface freshwater flux (m/s)
CURLTAU wind stress curl (N/m^2)
----------------------------
TIME MEAN SURFACE VARIABLES:
----------------------------
PBLHUM_MEAN time mean of PBLHUM
PBLTEM_MEAN time mean of PBLTEM
CICE_MEAN time mean of CICE
HICE_MEAN time mean of HICE
THICE_MEAN time mean of THICE
UICE_MEAN time mean of UICE
VICE_MEAN time mean of VICE
QIOS_MEAN time mean of QIOS
HFLX_MEAN time mean of HFLX
SFLX_MEAN time mean of SFLX
LATENT_MEAN time mean of LATENT
SENS_MEAN time mean of SENSIBLE
LW_MEAN time mean of LONGWAVE
DEF_MEAN time mean of DEFICIT
PSI_MEAN time mean of PSI
-----------------------
TIME MEAN Y-Z VARIABLES:
-----------------------
MOSF meridional overturning stream function (m^3/s)
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TIME MEAN MIXED LAYER VARIABLES:
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MLD_MEAN time mean mixed layer depth (m)
UC_MLD meridional transport in the mixed layer (m^2/s)
VC_MLD zonal transport in the mixed layer (m^2/s)
W_MLD vertical velocity at base of the mixed layer (m/s)
HC_MLD heat content of the mixed layer (mK)
DT_MLD vertical temperature difference at base of mixed later (K)
e.g., T(k+1)-T(k), where the MLD is at the k+1/2 interface
DS_MLD vertical gradient in salinity at base of mixed later (PSU)
FTCA_MLD heat through the base of the ML due to vertical mixing (Km/s)
FSCA_MLD salt through the base of ML due to vertical mixing (PSUm/s)
SOLPEN_MLD solar penetration through the base of ML (Km/s)
note: Ocean Heat Transport in the mixed layer is given by:
OHT_MLD = UC_MLD*d(SST)/dx + VC_MLD*d(SST)/dy + W_MLD*DT_MLD
+ (FTCA_MLD + SOLPEN_MLD)
(N.B., FTCA_MLD and SOLPEN_MLD should be SMALL)
and the SST tendency can be approximated by
d(HC_MLD)/dt = OHT_MLD + HFLX_MEAN/(Rho*Cp)
and (unless you changed it in the control file) Rho*Cp =4.12e6 W*s/m^3/K
Rho (density of sea water) = 1030 Kg/m^3
Cp (Heat capacity of sea water) = 4000 J/Kg/K
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TIME MAXIMUM 2D VARIABLES:
----------------------------
MLD time interval maximum mixed layer depth (m)
---------------------------------
3D INSTANTANEOUS VARIABLES, at midlayer points:
---------------------------------
TEMP temperature (degree C)
DENS in-situ SIGMA density (kg/m^3)
PDENS potential SIGMA density (kg/m^3)
N.B., a sigma density is rho-1000,
where rho is the density in (kg/m^3)
SALT salinity (PSU)
U_VEL zonal ocean velocity (m/s)
V_VEL meridional ocean velocity (m/s)
DIV ocean flow divergence in layer (m/s)
i.e., d(H_VALUES*U_VEL)/dx + d(H_VALUES*V_VEL)/dy
(e.g., AGE,IAGE)
any instantaneous 3d passive tracer field
EXTRA any instantaneous field on A-Grid, see code
---------------------------------
3D TIME MEAN VARIABLES, at midlayer points:
---------------------------------
T_MEAN time mean of TEMP
DENS_MEAN time mean of DENS
U_MEAN time mean of U_VEL
V_MEAN time mean of V_VEL
S_MEAN time mean of SALT
EXTRA_MEAN time mean of EXTRA
_MEAN (e.g., AGE_MEAN) time mean of
TEMP_HA horizontal heat flux divergence in (i,j,k) box (K*m/s)
note, this is div(hTu), NOT the net heat flux, u*grad(hT)
TEMP_VA vertical heat flux divergence in (i,j,k) box (K*m/s)
d(Tw)/dz, NOT w*dT/dz
TEMP_HD heat content tendency due to horizontal diffusion (K*m/s)
TEMP_VD heat content tendency due to explicit vertical diffusion (K*m/s)
TEMP_CA heat content tendency due to vertical mixing (conv. adj, Richardson
number dependent mixing, Krauss-Turner, etc) (K*m/s)
TEMP_SP heat content tendency due to sponge boundary conditions (K*m/s)
TEMP_SOLPEN heat content tendency due to solar penetration (K*m/s)
if k = 1 (surface)
H_VALUE*d(TEMP)/dt =
HFLX/rhoCp + TEMP_HA + TEMP_VA + TEMP_HD + TEMP_VD + TEMP_CA + TEMP_SP
+ TEMP_SOLPEN
if k > 1 (subsurface)
H_VALUE*d(TEMP)/dt =
TEMP_HA + TEMP_VA + TEMP_HD + TEMP_VD + TEMP_CA + TEMP_SP + TEMP_SOLPEN
SALT_HA/VA/HD/VD/CA/SP as above, but for salt (PSU*m/s)
SALT_RI salt content tendency due to river runoff and other (PSU*m/s)
boundary sources, e.g., Mediterranean outflow of deep salty water
_HA/VA as above, but for each of the tracers (*m/s)
_HD/VD
_CA/SP
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BIOLOGICAL VARIABLES:
----------------------------------
BIOTR = NUT,PHY,ZOO,DET (nutrients, phytoplankton, zooplankton, detritus)
FLXBIO = FNUTPHY,FPHYZOO,FPHYDET,FZOODET,FZOONUT,FDETNUT,
SEDIMENT,REMINERAL
(flux between tracers)
any of the above BIOTR (mmoleN/m^3)
_MEAN time mean of (mmoleN/m^3)
any of the above FLXBIO (mmoleN/m^3/s)
_HA/HD/VA/VD/CA/SP as for TEMP_*, but for FLXBIO (mmoleN/m^2/s)
LN nutrient limitation term (dimensionless)
LE light limitation term (dimensionless)
LT temperature limitation term (dimensionless)
PAR photosythetic available radiation (W/m^2)
LN_MEAN time mean of LN
LE_MEAN time mean of LE
LT_MEAN time mean of LT
PAR_MEAN time mean of PAR
ZM mixed layer depth computed on density gradient criterium (m)
ZE euphotic layer depth - 1% of incident light (m)
ZM_MEAN time mean of ZM
ZE_MEAN time mean of ZE
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3D VARIABLES, at layer interfaces:
----------------------------------
W_VEL instantaneous vertical velocity (m/s)
EXTRAW any instantaneous field on W-Grid, see code
----------------------------------
3D TIME MEAN VARIABLES, at layer interfaces:
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W_MEAN time mean of W_VEL (m/s)
KSLX_MEAN k*S_x (GM streamfunction y-component) (m^2/s)
KSLY_MEAN k*S_y (negative GM streamfunction x-component) (m^2/s)
HC_TOP heat content of upper k layers m*(degree C)
SC_TOP salt content of upper k layers (m*PSU)
UC_TOP zonal transport of upper k layers (m^2/s)
VC_TOP merid transport of upper k layers (m^2/s)
DH_TOP dynamic height of upper k layers (m)
KPP_vvc KPP vertical viscosity (m^2/s)
KPP_vdc KPP vertical diffusivity for temperature (m^2/s)
KPP_vsc KPP vertical diffusivity for salinity (m^2/s)
OHT_X time mean of the vertical integral of T*u (m^2/s)(degree C)
OHT_Y time mean of the vertical integral of T*v (m^2/s)(degree C)
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1D VARIABLES, in nrho density bins
----------------------------------
Volume fluxes across isopycnals due to surface fluxes
(see Speer and Tzipermann, 1992, 'Rates of Water Mass Formation
in the North Atlantic Ocean, JPO, Vol22, No.1, pp.93-104)
TRH_N contribution from northern hemispheric surface cooling (m^3/s)
TRH_S contribution from southern hemispheric surface cooling (m^3/s)
TRE_N contribution from northern hemispheric surface evaporation (m^3/s)
TRE_S contribution from southern hemispheric surface evaporation (m^3/s)
TRA_N surface area of isopycnal layer outcrop, north of equator (m^2)
TRA_S surface area of isopycnal layer outcrop, south of equator (m^2)
TRV_N volume of water in isopycnal layer, north of equator (m^3)
TRV_S volume of water in isopycnal layer, south of equator (m^3)
----------------------------------
2D VARIABLES, in y(j) and nrho(n) density bins
----------------------------------
as above, but for arbitrary latitude, e.g.,
TRH_N(rho) = TRH_IN(y=0,rho)
TRH_IN(j,n) flux contribution to bin(n) from latitudes north of j,
due to surface cooling (m^3/s)
TRH_IS(j,n) flux contribution to bin(n) from latitudes south of j,
due to surface cooling (m^3/s)
TRE_IN(j,n) flux contribution to bin(n) from latitudes north of j,
due to surface evaporation (m^3/s)
TRE_IS(j,n) flux contribution to bin(n) from latitudes south of j,
due to surface evaporation (m^3/s)
----------------------------------
1D VARIABLES, in y
----------------------------------
Q_HA/HD/SP zonal and vertical integral of TEMP_HA/HD/SP (Km^3/s)
EP_HA/HD/SP/RI zonal and vertical integral of SALT_HA/HD/SP/RI (PSU*m^3/s)
HFLX_Y zonal integral of HFLX_MEAN (W/m)
SFLX_Y zonal integral of SFLX_MEAN (m^2/s)