SODA - POP 2.2.4 Monthly Means, 1871-2010 (At Depths), Lon+/-180

Simple Ocean Data Assimilation (SODA) version 2.2.4 - A reanalysis of ocean
climate. SODA uses the GFDL modular ocean model version 2.2. The model is
forced by observed surface wind stresses from the COADS data set (from 1958
to 1992) and from NCEP (after 1992). Note that the wind stresses were
detrended before use due to inconsistencies with observed sea level pressure
trends. The model is also constrained by constant assimilation of observed
temperatures, salinities, and altimetry using an optimal data assimilation
technique. The observed data comes from: 1) The World Ocean Atlas 1994 which
contains ocean temperatures and salinities from mechanical
bathythermographs, expendable bathythermographs and conductivity-temperature-
depth probes. 2) The expendable bathythermograph archive 3) The TOGA-TAO
thermistor array 4) The Soviet SECTIONS tropical program 5) Satellite
altimetry from Geosat, ERS/1 and TOPEX/Poseidon.
We are now exploring an eddy-permitting reanalysis based on the Parallel
Ocean Program POP-1.4 model with 40 levels in the vertical and a 0.4x0.25
degree displaced pole grid (25 km resolution in the western North
Atlantic). The first version of this we will release is SODA1.2, a
reanalysis driven by ERA-40 winds covering the period 1958-2001 (extended to
the current year using available altimetry).