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SODA v2.1.6

Ocean data assimilation model

There are several versions of SODA (Carton, Giese and Grodsky, 2005), depending on the experiment setup. SODA 2.1.6 is their most recent "released" version. It is similar to earlier versions (1958-2008) with era-40 winds.
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

Variables	Ocean temperature (including SST) (°C), salinity (psu), horizontal ocean velocity (m/s), sea level (m), wind stress (N/m^2)
Zonal	Global by 0.5 deg
Meridional	Global by 0.5 deg
Vertical	5375, 5125, 4875, 4625, 4375, 4125, 3875, 3625, 3375, 3125, 2875, 2375, 2125.01, 1875.11, 1625.7, 1378.57, 1139.15, 918.37, 729.35, 579.31, 465.91, 381.39, 317.65, 268.46, 229.48, 197.79, 171.4, 148.96, 129.49, 112.32, 96.92, 82.92, 70.02, 57.98, 46.61, 35.76, 25.28, 15.07, 5.01 m
Temporal	Jan 1958 to Dec 2008 by 1 month(s)
Static?	yes
Volume
Server	public:
Source	http://sodaserver.tamu.edu/
Acquired	August 2010
APDRC contact
Supplements	N/A