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The structure and realism of sensitivity perturbations and their interpretation as 'Key Analysis Errors'.

L. Isaksen, Mike Fisher, Erik Andersson
2004, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

10126-structure-and-realism-sensitivity-perturbations-and-their-interpretation-key-analysis-errors.pdf
The African easterly jet in the ECMWF Integrated forecast system: 4DVar analysis.

A.M. Tompkins, A. Diongue, D.J. Parker, C. Thorncroft
2004, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

12784-african-easterly-jet-ecmwf-integrated-forecast-system-4dvar-analysis.pdf
Influence matrix diagnostic of a data assimilation system.

Carla Cardinali, S. Pezzulli, Erik Andersson
2004, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

8592-influence-matrix-diagnostic-data-assimilation-system.pdf
ECMWF's global snow analysis: Assessment and revision based on satellite observations.

M. Drusch, Drasko Vasiljevic, P. Viterbo
2004, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

9139-ecmwfs-global-snow-analysis-assessment-and-revision-based-satellite-observations.pdf
Development of a European Multi-Model Ensemble System for Seasonal to Inter-Annual Prediction (DEMETER).

T.N. Palmer, A. Alessandri, U. Andersen, P. Cantelaube, M. Davey, P. Délécluse, M. Deque, E. Diez, F. Doblas-Reyes, H. Feddersen, R. Graham, S. Gualdi, J.-F. Guérémy, Renate Hagedorn, M. Hoshen, N. Keenlyside, M. Latif, A. Lazar, E. Maisonnave, V. Marletto, A.P. Morse, B. Orfila, P. Rogel, J.-M. Terres, M.C. Thomson
2004, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

11568-development-european-multi-model-ensemble-system-seasonal-inter-annual-prediction-demeter.pdf
Optimized surface radiation fields derived from METEOSAT imagery and a regional atmospheric model.

D. Meetschen, B. v.d. Hurk, F. Ament, M. Drusch
2004, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

11095-optimized-surface-radiation-fields-derived-meteosat-imagery-and-regional-atmospheric-model.pdf
Performance of the ECMWF and the BoM ensemble systems in the Southern Hemisphere.

W. Bourke, Roberto Buizza, M. Naughton
2004, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

8333-performance-ecmwf-and-bom-ensemble-systems-southern-hemisphere.pdf
Incorporating state-dependent temperature-salinity constraints in the background error covariance of variational ocean data assimilation.

S. Ricci, A.T. Weaver, J. Vialard, P. Rogel
2004, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

11895-incorporating-state-dependent-temperature-salinity-constraints-background-error-covariance.pdf
Soil moisture retrieval during the Southern Great Plains Hydrology Experiment 1999: A comparison between experimental remote sensing data and operational products.

M. Drusch, E.F. Wood, H. Gao, A. Thiele
2004, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

9141-soil-moisture-retrieval-during-southern-great-plains-hydrology-experiment-1999-comparison.pdf

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