SEARCH

SEARCH BY CITATION

REFERENCES

  • Bouttier, F. and Kelly, G. 2001 Observing-system experiments in the ECMWF 4D-Var data assimilation system. Q. J. R. Meteorol. Soc., 127, 14691488
  • Cardinali, C., Pezzuli, S. and Andersson, E. 2004 Influence matrix diagnostic of a data assimilation system. Q. J. R. Meteorol. Soc., 130, 27672786
  • Chapnik, B., Desroziers, G., Rabier, F. and Talagrand, O. 2006 Diagnosis and tuning of observational error statistics in a quasi-operational data assimilation setting. Q. J. R. Meteorol. Soc. (in press)
  • Courtier, P., Freydier, C., Geleyn, J.-F., Rabier, F. and Rochas, M. 1991 The Arpège project at Météo-France. Pp. 193231 in Proceedings of the ECMWF workshop on numerical methods in atmospheric models, 9–13 September, Reading, UK. European Centre for Medium-Range Weather Forecasts, Shinfield Park, Reading, Berkshire RG2 9AX, UK
  • Desroziers, G., Hello, G. and Thépaut, J.-N. 2003 A 4D-Var re-analysis of the FASTEX. Q. J. R. Meteorol. Soc., 129, 13011315
  • Desroziers, G. and Ivanov, S. 2003 Diagnosis and adaptive tuning of information error parameters in a variational assimilation. Q. J. R. Meteorol. Soc., 129, 14331452
  • Desroziers, G., Brousseau, P. and Chapnik, B. 2005 Use of randomization to diagnose the impact of observations on analyses and forecasts. Q. J. R. Meteorol. Soc., 131, 28212837
  • Doerenbecher, A., Leutbecher, M. and Richardson, D. S. 2005 Comparison of observation targeting predictions during the (North) Atlantic TReC 2003. In Proceedings of the first international THORPEX science symposium, 6–10 December 2003, Montreal, Canada
  • Fisher, M. 2003 Estimation of entropy reduction and degrees of freedom for signal for large variational analysis systems. ECMWF Tech. Memo. No. 397, European Centre for Medium-Range Weather Forecasts, Shinfield Park, Reading, Berkshire RG2 9AX, UK
  • Gelaro, R., Reynolds, C. A., Langland, R. H. and Rohaly, G. D. 2000 A predictability study using geostationary satellite wind observations during NORPEX Mon. Weather Rev., 128, 37893807
  • Geleyn, J.-F., Banciu, D., Bellus, M., El Khatib, R., Moll, P., Saez, P. and Thépaut, J.-N. 2001 The operational 4D-Var data assimilation system of Météo-France: Characteristics and behaviour in the special case of the 99 Xmas storms over France. Pp. 912 in Proceedings of the 14th AMS conference on numerical weather prediction, 30 July–2 August, Fort Lauderdale, USA. American Meteorological Society, 45 Beacon Street, Boston MA02108-3693, USA
  • Janiskovà, M., Thépaut, J.-N. and Geleyn, J.-F. 1999 simplified and regular physical parametrizations for incremental four-dimensional variational assimilation. Mon. Weather Rev., 127, 2645
  • Joly, A., Browning, K. A., Bessemoulin, P., Cammas, J.-P., Caniaux, G., Chalon, J.-P., Clough, S. A., Dirks, R., Emanuel, K. A., Eymard, L., Gall, R., Hewson, T. D., Hildebrand, P. H., Jorgensen, D., Lalaurette, F., Langland, R. H., Lemaitre, Y., Mascart, P., Moore, J. A., Persson, P. G., Roux, F., Shapiro, M. A., Snyder, C., Toth, Z. and Wakimoto, R. M. 1999 Overview of the field phase of the Fronts and Atlantic Storm-Track EXperiment (FASTEX) project. Q. J. R. Meteorol. Soc., 125, 31313163
  • Langland, R. H. and Baker, N. L. 2004 Estimation of observation impact using the NRL atmospheric variational data assimilation adjoint system. Tellus, 56A, 189201
  • Langland, R. H., Toth, Z., Gelaro, R., Szunyogh, I., Shapiro, M. A., Majumdar, S. J., Morss, R.E., Rohaly, G. D., Velden, C., Bond, N. and Bishop, C. H. 1999 The North Pacific Experiment (NORPEX-98): Targeted observations for improved North American weather forecast. Bull. Am. Meteorol. Soc., 80, 13631384
  • Leutbecher, M., Barkmeijer, J., Palmer, T. N. and Thorpe, A. J. 2002 Potential improvement to forecasts of two severe storms using targeted observations. Q. J. R. Meteorol. Soc., 128, 16411670
  • Majumdar, S. J., Bishop, C. H., Buizza, R. and Gelaro, R. 2002 A comparison of ensemble-transform Kalman-filter targeting guidance with ECMWF and NRL total energy singular vector guidance. Q. J. R. Meteorol. Soc., 128, 25272549
  • Morss, R. E. and Emanuel, K. A. 2002 Influence of added observations on analysis and forecast errors: Results from idealized systems. Q. J. R. Meteorol. Soc., 128, 285321
  • Rabier, F., Klinker, E., Courtier, P. and Hollingsworth, A. 1996 Sensitivity of forecast errors to initial conditions. Q. J. R. Meteorol. Soc., 122, 121150
  • Rodgers, C. D. 2000 Inverse methods for atmospheres: Theories and practice. World Scientific Publ., Singapore
  • Stringer, S. and Truscott, B. 2004 Atlantic-THORPEX Regional Campaign. Operations plan. Available at http:www.wmo.int/thorpex/pdf/atlanticobsystem.pdf
  • Szunyogh, I., Toth, Z., Morss, R., Majumdar, S., Etherton, B. J. and Bishop, C. H. 2000 The effect of targeted dropsonde observation during the 1999 Winter Storm Reconnaissance Program. Mon. Weather Rev., 128, 35203537
  • Szunyogh, I., Toth, Z., Zimin, A. V., Majumdar, S. J. and Persson, A. 2002 Propagation of the effect of targeted observations: The 2000 Winter Storm Reconnaissance Program. Mon. Weather Rev., 130, 11441165