Someone sent me a survey that contained a list of projects involved in reanalysis of various data sets. I don't have the know how to use most of the stuff on it and probably wouldn't have time to go through it even if I had the smarts.

Some on here might find the sites interesting. No links, just the list of places that exist or existed to reassemble said data:

Atmospheric reanalyses:

Global ECMWF Interim Reanalysis (ERA�Interim)
Global ECMWF 40 year Reanalysis (ERA�40)
Global ECMWF Reanalysis (ERA�15)
Global Japanese Reanalysis (JRA�25) or its continuation as JMA Climate

Data Assimilation

System (JCDAS)
Global NASA MERRA
Global NCEP Climate Forecast System Reanalysis (CFSR)
Global NCEP/NCAR Reanalysis I (R1) (1948 to present)
Global NCEP/DOE Reanalysis AMIP�II (R2) (1979 to near present)
Global NOAA�CIRES 20th Century Reanalysis (20CR)
Arctic System Reanalysis (ASR)
NCEP North American Regional Reanalysis (NARR)
The European Reanalysis and Observations for Monitoring project (EURO4M)
Global MACC Reanalysis 2003-2010
Global GEMS Reanalysis 2003-2007
Other, please specify

Ocean reanalyses:

ARMOR3D
BLUElink
CERFACS
CFSR
CMCC
DePreSys
ECMWF Ocean ReAnalysis ORA�S3
ECMWF Ocean Reanalysis System 4 (ORAS4)
ECMWF Ocean ReAnalysis ORA�XBTc
ECMWF NEMOVAR COMBINE
ECCO�GODAE MIT/AER
ECCO�JPL
ECCO�SIO
ECCO2�cube78
EN3
FNMOC/GODAE
FOAM Global
FOAM North Atlantic
FOAM Mediterranean Sea
GECCO
GECCO2
GFDL
GloSea
GMAO
G2V1
HYCOM
INGV
K�7
K7�ODA
K7CDA
LEGOS
MERCATOR�2 North Atlantic
MERCATOR�2 Global
MERCATOR�3 Global
MOVE/MRI.COM�C
MOVE/MRI.COM�CORE
NCEP/GODAS
NODC
PEODAS
POAMA
PSY3V3
SODA 2.1.6
SODA 2.2.4
UR025.4

Here is one I prepared earlier: http://jra.kishou.go.jp/JRA-25/AboutJRA25_en.html please try this at home.