• Anderson, D. L. T., T. Stockdale, M. Balmaseda, L. Ferranti, F. Vitart, F. Molteni, F. Doblas-Reyes, K. Mogensen, and A. Vidard (2007), Development of the ECMWF Seasonal Forecast System 3, ECMWF Tech. Memo. 503, Reading, U. K. ( Available at
  • Balmaseda, M. A., D. Dee, A. Vidard, and D. L. T. Anderson (2007), A multivariate treatment of bias for sequential data assimilation: Application to the tropical oceans, Q. J. R. Meteorol. Soc., 133, 167179.
  • Balmaseda, M. A., A. Vidard, and D. Anderson (2007b), The ECMWF System-3 ocean analysis system, ECMWF Tech. Memo. 508, Reading, U. K. ( Available from
  • Gould, J. (2005), From swallow floats to Argo—The development of neutrally buoyant floats, Deep Sea Res., Part II, 52, 529543.
  • Haines, K., J. Blower, J.-P. Drecourt, C. Liu, A. Vidard, I. Astin, and X. Zhou (2006), Salinity assimilation using S(T) relationships, Mon. Weather Rev., 134, 759771.
  • Ingleby, B., and M. Huddleston (2006), Quality control of ocean temperature and salinity profiles—Historical and real-time data, J. Mar. Syst., 65, 158175.
  • Le Traon, P.-Y., F. Nadal, and N. Ducet (1998), An improved mapping method of multisatellite altimeter data, J. Atmos. Oceanic Technol., 15, 522534.
  • Reynolds, R., N. Rayner, T. Smith, D. Stokes, and W. Wang (2002), An improved in situ and satellite SST analysis for climate, J. Clim., 15, 16091625.
  • Roemmich, D., S. Riser, R. Davis, and Y. Desaubies (2004), Autonomous profiling floats: Workhorse for broadscale ocean observations, Mar. Technol. Soc. J., 38, 3139.
  • Troccoli, A., and P. Kallberg (2004), Precipitation correction in The ERA-40 reanalysis, ERA-40 Proj. Rep. Ser. 13, Eur. Cent. for Med. Range Weather Forecasts, Reading, U. K.
  • Vidard, A., D. L. T. Anderson, and M. Balmaseda (2007), Impact of ocean observation systems on ocean analysis and seasonal forecasts, Mon. Weather Rev., 135, 409429, doi:10.1175/MWR3310.1.