384
PIERRE BAHUREL
DATA
CENTER
RETRIEVAL
FREQUENCY
FORCING
ASSIMILATION
VALIDATION
In s tu data : high resolution
XBT and CTD, low resolution
TESAC and BATHY, ARGO
profiling floats, moorings
(TAO/PIRATA/TRITON/), drifters,
...
i
Coriolis Data
Center
weekly
X
X
Altimetry : Jason-1, GFO,
Envisat, Topex-Poseidon
SSALTO/DUACS
weekly
X
Reynolds Sea Surface
Temperature
NOAA
weekly
X
X
High Resolution SAF
Ocean&Ice Atlantic Sea Surface
Temperature (10 km, daily
product)
Eumetsat/
Météo-France
daily
X
Climatologic Sea Surface
Salinity
Reynaud & al. (1998)
X
X
6-hour analyses and
predictions of winds, heat
fluxes, Evaporation-Precipitation,
cloudiness, air surface
temperature, air surface humidity,
surface wind
ECMWF for
operational forcing
weekly
X
Monthly Climatologic Runoffs
Unesco database
J. D. Milliman and R
H. Meade, 1983
.
G. L. Russell and J.
R. Miller, 1990
F. Van D Leeden & al
X
Real-time scatterometry winds
Cersat
X
Mean Sea Surface Height
combining gravity/in situ data
M.H. Rio & al. (2004)
Regularly
upgraded
X
High resolution daily sea ice
concentration (12 km) and
drift (60 km). Real-time.
Cersat
R. Ezraty and J.-F
Piollé (2004)
.
R. Ezraty & al. (2004)
X
Table 1. Input MERCATOR data used for assimilation, forcing and model assessment.
2.2 Model
MERCATOR uses the OPA-NEMO primitive equation ocean code
developed at LODyC, Paris [Madec et al., 1998]. The four MERCATOR
configurations have a lot of common points like using the rigid lid
assumption, a vertical z-coordinates and a turbulent kinetic energy mixing
parameterisation (1.5 closure scheme). The bathymetry is processed from the
Smith et Sandwell, data base completed in the Antarctic region, the