ECMWF ORAP5.0

Area: Global

Period: 1979-2013

Data available: YES

Model: NEMO V3.4.1
Resolution: horizontal 1/4°x1/4°, 75 vertical levels, about 1m level thickness in upper 200 m.
Data assimilated: Temperature and Salinity profiles from the EN3 v2a database with XBT bias correction, including XBT, CTD, Argo, Mooring, and from realtime GTS thereafter. Along track altimeter sea level anomalies and global trends from AVISO. SST and sea-ice are from the ERA-40 archive (before Auguest 1981), OSTIA analysis (1985-2007) and operational real-time OSTIA (2009 to 2013). For the period when OSTIA is not available the 1/4 degree daily NOAA OIv2d analysis is used.
Assimilation method: NEMOVAR in its 3D-Var FGAT mode. The assimilation window is 5 days. A bias correction scheme is used to correct the model/forcing errors.
Forcing and relaxation used: All the surface forcing fields are from ECMWF ERA-Interim atmospheric reanalysis product, with addititional wave fields.
Download Data: ftp://nrtcmems.mercator-ocean.fr/Core/GLOBAL_REANALYSIS_PHYS_001_017/ (you need a CMEMS account)
Contact: Magdalena Balmaseda (magdalena.balmaseda (at) ecmwf.int), Hao Zuo (hao.zuo (at) ecmwf.int)
References: Zuo, H., Balmaseda, M. A. and Mogensen, K., 2015. The new eddy-permitting ORAP5 ocean reanalysis: description, evaluation and uncertainties in climate signals. Climate Dynamics, 49(3), 791-811, doi:10.1007/s00382-015-2675-1
Zuo, H., Balmaseda, M. A., and Mogensen, K., 2014. The ECMWF-MyOcean2 eddy-permitting ocean and sea-ice reanalysis ORAP5. Part 1: Implementation. ECMWF Tech Memo (736)
Product User Manual (pdf, not barrier-free),Quality Information (pdf, not barrier-free)