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Variational assimilation of time sequences of surface observations with serially correlatederrors

Author

H Järvinen

Erik Andersson

F. Bouttier

1998, Technical memorandum, ECMWF Technical Memoranda

File

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

User requirements for the assimilation of TRMM products in the ECMWF 4D-Var system

Author

J.-F. Mahfouf

E. Gerard

V. Marécal

M.J. Miller

R. Saunders

1998, Technical memorandum, ECMWF Technical Memoranda

File

10927-user-requirements-assimilation-trmm-products-ecmwf-4d-var-system.pdf

Seasonal skill and predictability of ECMWF PROVOST ensembles

Author

C. Brankovic

T.N. Palmer

1998, Technical memorandum, ECMWF Technical Memoranda

File

8367-seasonal-skill-and-predictability-ecmwf-provost-ensembles.pdf

Global Sea Ice Concentration Data Set used in ERA

Author

A. Nomura

1998, Report, ERA Report

A probability and decision-model analysis of PROVOST seasonal multi-model ensemble integrations

Author

T.N. Palmer

C. Brankovic

David Richardson

1998, Technical memorandum, ECMWF Technical Memoranda

File

11544-probability-and-decision-model-analysis-provost-seasonal-multi-model-ensemble-integrations.pdf

Skill and relative economic value of the ECMWF Ensemble Prediction System

Author

David Richardson

1998, Technical memorandum, ECMWF Technical Memoranda

File

11903-skill-and-relative-economic-value-ecmwf-ensemble-prediction-system.pdf

Influence of physical processes on the tangent-linear approximation

Author

J.-F. Mahfouf

1998, Technical memorandum, ECMWF Technical Memoranda

File

10919-influence-physical-processes-tangent-linear-approximation.pdf

The ECMWF surface analysis: Diagnostics and prospects

Author

H. Douville

J.-F. Mahfouf

S. Saarinen

P. Viterbo

1998, Technical memorandum, ECMWF Technical Memoranda

File

9099-ecmwf-surface-analysis-diagnostics-and-prospects.pdf

Development of a simplified Kalman filter

Author

Mike Fisher

1998, Technical memorandum, ECMWF Technical Memoranda

File

9401-development-simplified-kalman-filter.pdf

Tropical Cyclones

Author

E. Serrano

1998, Report, ERA Report

The representation of soil moisture freezing and its impact on the stable boundary layer

Author

P. Viterbo

Anton Beljaars

J.-F. Mahfouf

J. Teixeira

1998, Technical memorandum, ECMWF Technical Memoranda

File

12954-representation-soil-moisture-freezing-and-its-impact-stable-boundary-layer.pdf

The forecast impact of changes to the albedo of the boreal forests in the presence of snow

Author

P. Viterbo

A. Betts

1998, Technical memorandum, ECMWF Technical Memoranda

File

12956-forecast-impact-changes-albedo-boreal-forests-presence-snow.pdf

Introduction of revised radiation, convection, cloud and vertical diffusion schemes intoCy18r3 of the ECMWF integrated forecasting system

Author

D. Gregory

J.-J. Morcrette

C. Jakob

Anton Beljaars

1998, Technical memorandum, ECMWF Technical Memoranda

File

9648-introduction-revised-radiation-convection-cloud-and-vertical-diffusion-schemes-intocy18r3-ecmwf.pdf

Stratospheric water vapour and tropical tropopause temperatures in ECMWF analyses and multi-year simulations

Author

Adrian Simmons

A. Untch

C. Jakob

P.W. Kållberg

P. Undén

1998, Technical memorandum, ECMWF Technical Memoranda

File

12287-stratospheric-water-vapour-and-tropical-tropopause-temperatures-ecmwf-analyses-and-multi-year.pdf

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

Author

C. Jakob

S.A. Klein

1998, Technical memorandum, ECMWF Technical Memoranda

File

10149-role-vertically-varying-cloud-fraction-parametrization-microphysicalproceses-ecmwf-model.pdf

On error growth in wave models

Author

Peter Janssen

1998, Technical memorandum, ECMWF Technical Memoranda

File

10191-error-growth-wave-models.pdf

Variational quality control

Author

Erik Andersson

H Järvinen

1998, Technical memorandum, ECMWF Technical Memoranda

File

7759-variational-quality-control.pdf

Impact of a validated radiative transfer scheme, RRTM, on the ECMWF model climate and 10-day forecasts

Author

J.-J. Morcrette

S.A. Clough

E.J. Mlawer

M.J. Iacono

1998, Technical memorandum, ECMWF Technical Memoranda

File

11252-impact-validated-radiative-transfer-scheme-rrtm-ecmwf-model-climate-and-10-day-forecasts.pdf

Probability precipitation prediction using the ECMWF Ensemble Prediction System

Author

Roberto Buizza

A. Hollingsworth

1998, Technical memorandum, ECMWF Technical Memoranda

File

8445-probability-precipitation-prediction-using-ecmwf-ensemble-prediction-system.pdf

The ECMWF implementation of three dimensional variational assimilation. Part 1:Formulation

Author

P. Courtier

Erik Andersson

W.A. Heckley

J. Pailleux

Drasko Vasiljevic

M. Hamrud

A. Hollingsworth

Florence Rabier

Mike Fisher

1998, Technical memorandum, ECMWF Technical Memoranda

File

8787-ecmwf-implementation-three-dimensional-variational-assimilation-part-1formulation.pdf

The ECMWF implementation of three dimensional variational assimilation. Part III: Experimental results

Author

Erik Andersson

J. Haseler

P. Undén

P. Courtier

G.A. Kelly

Drasko Vasiljevic

C. Brankovic

Carla Cardinali

C. Gaffard

A. Hollingsworth

C. Jakob

Peter Janssen

E. Klinker

A. Lanzinger

M.J. Miller

Florence Rabier

Adrian Simmons

B. Strauss

Jean-Noël Thépaut

P. Viterbo

1998, Technical memorandum, ECMWF Technical Memoranda

File

7752-ecmwf-implementation-three-dimensional-variational-assimilation-part-iii-experimental-results.pdf

Impact of ensemble size on ensemble prediction

Author

Roberto Buizza

T.N. Palmer

1998, Technical memorandum, ECMWF Technical Memoranda

File

8461-impact-ensemble-size-ensemble-prediction.pdf

Impact of model resolution and ensemble size of the performance of an EnsemblePrediction System

Author

Roberto Buizza

T. Petroliagis

T.N. Palmer

J. Barkmeijer

M. Hamrud

A. Hollingsworth

Adrian Simmons

Nils Wedi

1998, Technical memorandum, ECMWF Technical Memoranda

File

8465-impact-model-resolution-and-ensemble-size-performance-ensembleprediction-system.pdf

Aspects of the re-analysed climate

Author

P.W. Kållberg

1998, Report, ERA Report

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