Ocean data assimilation model
There are several versions of SODA (Carton, Giese and Grodsky, 2005), depending on
the experiment setup. Version 1.4.2 uses ECMWF winds from 1958-2001.
The ocean model is based on Parallel Ocean Program physics with an average
0.25°x0.4°x40-level resolution. Observations include virtually all available
hydrographic profile data, as well as ocean station data, moored temperature
and salinity time series, surface temperature and salinity observations of
various types, and nighttime infrared satellite SST data. The output is in
monthly-averaged form, mapped onto a uniform 0.5°x0.5°x40-level grid. The
reanalysis provides three types of variables, those well constrained by observations,
those partly constrained by dynamical relatioships to variables frequently
observed, and those poorly constrained such as horizontal velocity divergence.
It is worthy noting that SODA aims at improving upper ocean reanalysis, likely
because data below 1000m is limited. For more information on the SODA product,
see Carton et al. (2005) and Carton and Giese (2008).
Reference:
Carton, J. A. and B. S. Giese, 2008: A Reanalysis of Ocean Climate Using Simple Ocean
Data Assimilation (SODA), Mon. Weather Rev., 136, 2999-3017
Carton, JA, BS Giese, and S.A. Grodsky, 2005: Sea level rise and the warming of the oceans in the SODA ocean
reanalysis, J. Geophys. Res., 110, art# 10.1029/2004JC002817
provided us the output during his visit to the IPRC.
Variables | Ocean temperature (including SST) (°C), salinity (psu), horizontal ocean velocity (cm/s), sea level (cm), wind stress (dynes/cm^2), depth of 20-deg isotherm (m), heat content of the upper 500m (W/m^2), average zonal velocity of the upper 300m (cm/s), temperature of the 1025 sig-theta surface (°C), depth of the 1025 sig-theta surface (m) |
Zonal | Global by 0.5 deg |
Meridional | Global by 0.5 deg |
Vertical | 5374, 5124, 4874, 4624, 4374, 4124, 3874, 3624, 3374, 3124, 2874, 2624, 2375, 2125, 1875, 1625, 1378, 1139, 918, 729, 579, 465, 381, 317, 268, 229, 197, 171, 148, 129, 112, 96, 82, 70, 57, 46, 35, 25, 15, 5 m |
Temporal | Jan 1958 to Dec 2001 by 1 month(s) |
Static? | yes |
Volume | |
Server | public: ![]() ![]() ![]() ![]() ![]() |
Source | http://www.atmos.umd.edu/~ocean |
Acquired | July 6, 2005 |
APDRC contact | |
Supplements | N/A |