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The role of vertically varying cloud fraction in the parametrization of microphysicalproceses in the ECMWF model

C. Jakob, S.A. Klein
1998, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

10149-role-vertically-varying-cloud-fraction-parametrization-microphysicalproceses-ecmwf-model.pdf
Sequential soil moisture analysis in the presence of internal and prescribed errors using the ECMWF single column model

H. Douville, P. Viterbo, J.-F. Mahfouf, Anton Beljaars
1998, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

9100-sequential-soil-moisture-analysis-presence-internal-and-prescribed-errors-using-ecmwf-single.pdf
User requirements for the assimilation of TRMM products in the ECMWF 4D-Var system

J.-F. Mahfouf, E. Gerard, V. Marécal, M.J. Miller, R. Saunders
1998, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

10927-user-requirements-assimilation-trmm-products-ecmwf-4d-var-system.pdf
The ECMWF implementation of three dimensional variational assimilation. Part II: Structure functions

Florence Rabier, A. McNally, Erik Andersson, Courtier P., P. Undén, J. Eyre, A. Hollingsworth, F. Bouttier
1998, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

11799-ecmwf-implementation-three-dimensional-variational-assimilation-part-ii-structure-functions.pdf
The ECMWF implementation of three dimensional variational assimilation. Part 1:Formulation

Courtier P., Erik Andersson, Heckley W.A., J. Pailleux, Drasko Vasiljevic, M. Hamrud, A. Hollingsworth, Florence Rabier, Mike Fisher
1998, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

8787-ecmwf-implementation-three-dimensional-variational-assimilation-part-1formulation.pdf
Development of a simplified Kalman filter

Mike Fisher
1998, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

9401-development-simplified-kalman-filter.pdf
Impact of model resolution and ensemble size of the performance of an EnsemblePrediction System

Roberto Buizza, T. Petroliagis, T.N. Palmer, J. Barkmeijer, M. Hamrud, A. Hollingsworth, Adrian Simmons, Nils Wedi
1998, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

8465-impact-model-resolution-and-ensemble-size-performance-ensembleprediction-system.pdf
Variational assimilation of time sequences of surface observations with serially correlatederrors

H Järvinen, Erik Andersson, F. Bouttier
1998, ECMWF Technical Memoranda, Technical memorandum, ECMWF.

10349-variational-assimilation-time-sequences-surface-observations-serially-correlatederrors.pdf