• Barath, F. T., Chavez, M. C., Cofield, R. E., Flower, D. A., Frerking, M. A., Gram, M. B., Harris, W. M., Holden, J. R., Jarnot, R. F., Kloezeman, W. G., Klose, G. J., Lau, G. K., Loo, M. S., Maddison, B. J., Mattauch, R. J., McKinney, R. P., Peckham, G. E., Pickett, H. M., Siebes, G., Soltis, F. S., Suttie, R. A., Tarsala, J. A., Waters, J. W. and Wilson, W. J. 1993 The Upper Atmosphere Research Satellite Microwave Limb Sounder Instrument. J. Geophys. Res., 98, 1075110762
  • Bhartia, P. K., McPeters, R. D., Mateer, C. L., Flynn, L. E. and Wellemeyer, C. 1996 Algorithm for the estimation of vertical ozone profiles from the backscattered ultraviolet technique. J. Geophys. Res., 101, 1879318806
  • Cariolle, D. and Déqué, M. 1986 Southern hemisphere medium-scale waves and total ozone disturbances in a spectral general circulation model. J. Geophys. Res., 91, 1082510846
  • Courtier, P., Andersson, E., Heckley, W., Pailleux, J., Vasiljevic, D., Hamrud, M., Hollingsworth, A., Rabier, F. and Fisher, M. 1998 The ECMWF implementation of three-dimensional variational assimilation (3D-Var). Part I: Formulation. Q. J. R.Meteorol. Soc., 124, 17831808
  • Derber, J. C. and Wu, W.-S. 1998 The use of TOVS cloud-cleared radiances in the NCEP SSI analysis system. Mon. Weather Rev., 126, 22872299
  • Derber, J. and Bouttier, F. 1999 A reformulation of the background error covariance in the ECMWF global data assimilation system. Tellus, 51A, 195221
  • Douglass, A. R., Schoeberl, M. R., Kawa, S. R. and Browell, E. V. 2001 A composite view of ozone evolution in the 1995–1996 northern winter polar vortex developed from airborne lidar and satellite observations. J. Geophys. Res., 106, 98799895
  • Eskes, H. J., van Velthoven, P. F. J., Valks, P. J. M. and Kelder, H. M. 2003 Assimilation of GOME total ozone satellite observations in a three-dimensional tracer transport model. Q. J. R. Meteorol. Soc., 129, 16631681
  • Fisher, M. and Andersson, E. 2001 ‘Developments in 4D-Var and Kalman Filtering’. ECMWF Technical Memorandum 347. Available from ECMWF, Shinfield Park, Reading, Berkshire, RG2 9AX, UK
  • Fortuin, J. P. F. and Langematz, U. 1995 ‘An update on the global ozone climatology and on concurrent ozone and temperature trends’. Pp. 207216 in Proceedings of SPIE Conference on Atmospheric Sensing and Modelling, 1994, Rome
  • Hólm, E. V., Untch, A., Simmons, A., Saunders, R., Bouttier, F. and Andersson, E. 1999 ‘Multivariate ozone assimilation in four-dimensional data assimilation’. Pp. 8994 in Proceedings of the SODAWorkshop on Chemical Data Assimilation, 9–10 December 1998, KNMI, De Bilt, The Netherlands
  • Hólm, E. V., Untch, A., Simmons, A., Saunders, R., Bouttier, F. and Andersson, E. 2000 ‘Multivariate ozone assimilation’. Pp. 305308 in Proceedings of the Third International Symposium on Assimilation of Observations in Meteorology and Oceanography, 7–11 June 1999, Quebec City, Canada, TD 986, WMO, Geneva, Switzerland
  • Jackson, D. and Saunders, R. 2002 ‘Ozone data assimilation: Preliminary system’. Forecasting Research Technical Report No. 394, Met Office, Exeter, UK
  • Jeuken, A. B. M., Eskes, H. J., van Velthoven, P. F. J., Kelder, H. M. and Hólm, E. V. 1999 Assimilation of total ozone satellite measurements in a threedimensional tracer transport model. J. Geophys. Res., 104, 55515563
  • McPeters, R. D, Krueger, A. J., Bhartia, P. K., Herman, J. R., Schlesinger, B. M., Wellemeyer, C. G., Seftor, C. J., Jaross, G., Taylor, S. L., Swissler, T., Torres, O., Labow, G., Byerly, W. and Cebula, R. P. 1996 ‘Nimbus-7 Total Ozone Mapping Spectrometer (TOMS) Data Products User's Guide’. NASA Reference Publication 1384
  • Peuch, A., Thépaut, J.-N. and Pailleux, J. 2000 Dynamical impact of total-ozone observations in a fourdimensional variational assimilation. Q. J. R. Meteorol. Soc., 126, 16411659
  • Rabier, F., Järvinen, H., Klinker, E., Mahfouf, J. F. and Simmons, A. 2000 The ECMWF operational implementation of four-dimensional variational assimilation. I: Experimental results with simplified physics. Q. J. R. Meteorol. Soc., 126, 11431170
  • Riishøjgaard, L. P. 1996 On four-dimensional variational assimilation of ozone data in weather-prediction models. Q. J. R. Meteorol. Soc., 122, 15451571
  • Savijarvi, H. 1995 Error growth in a large numerical forecast system Mon. Weather Rev., 123, 212221
  • Simmons, A. and Gibson, J. K. 2000 ‘The ERA-40 project plan’. ERA-40 Project Report Series 1. Available from ECMWF, Reading, RG2 9AX, UK. See also
  • SPARC 1998 SPARC/IOC/GAWAssessment of Trends in the Vertical Distribution of Ozone. SPARC Report No. 1, Eds. N.Harris, R.Hudson and C.Phillips
  • Stajner, I., Riishøjgaard, L. P. and Rood, R. B. 2001 The GEOS ozone data assimilation system: Specification of error statistics. Q. J. R. Meteorol. Soc., 127, 10691094
  • Struthers, H., Brugge, R., Lahoz, W. A. and O'Neill, A. 2002 Assimilation of ozone profiles and total column measurements into a global general circulation model. J. Geophys. Res., 107, D20, 4438, doi: 10.1029/2001IJD000957
  • Untch, A., Simmons, A., Hortal, M., Jacob, C. and colleagues 1999 ‘Increased stratospheric resolution in the ECMWF forecasting system’. Pp. 4552 of Proceedings of the SODA Workshop on Chemical Data Assimilation, 9–10 December 1998, KNMI, De Bilt, The Netherlands
  • Valks, P. J. M., Piters, A. J. M., Lambert, J. C., Zehner, C. and Kelder, H. 2003 A Fast Delivery System for the retrieval of near-real time ozone columns from GOME data. Int. J. Remote Sensing, 24, 423436