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Report on the fourteenth Security Representatives' Meeting , 16-17 May 2006. (Restricted distribution)

Author

P. Prior

2006, Technical memorandum, ECMWF Technical Memoranda

Report on the eighteenth meeting of Computing Representatives 8-9 June 2006

Author

P. Prior

2006, Technical memorandum, ECMWF Technical Memoranda

File

11741-report-eighteenth-meeting-computing-representatives-8-9-june-2006.pdf

Sensitivity of forecast error to initial conditions using the adjoint method

Author

Florence Rabier

P. Courtier

M. Herveou

B. Strauss

A Persson

1993, Technical memorandum, ECMWF Technical Memoranda

File

11789-sensitivity-forecast-error-initial-conditions-using-adjoint-method.pdf

Evaluation of forecast error covariance matrix

Author

Florence Rabier

A. McNally

1993, Technical memorandum, ECMWF Technical Memoranda

File

11801-evaluation-forecast-error-covariance-matrix.pdf

Verification statistics and evaluations of ECMWF forecasts in 2005-2006.

Author

David Richardson

Roberto Buizza

Laura Ferranti

A Ghelli

G. van der Grijn

Ervin Zsótér

2006, Technical memorandum, ECMWF Technical Memoranda

File

11902-verification-statistics-and-evaluations-ecmwf-forecasts-2005-2006.pdf

Analysis and forecast impact of the main humidity observing systems

Author

Erik Andersson

E. Hólm

Peter Bauer

Anton Beljaars

G.A. Kelly

A. McNally

Adrian Simmons

Jean-Noël Thépaut

A.M. Tompkins

2006, Technical memorandum, ECMWF Technical Memoranda

File

7766-analysis-and-forecast-impact-main-humidity-observing-systems.pdf

Multiple-scattering microwave radiative transfer for data assimilation applications.

Author

Peter Bauer

E. Moreau

F. Chevallier

U. O'Keeffe

2006, Technical memorandum, ECMWF Technical Memoranda

File

7989-multiple-scattering-microwave-radiative-transfer-data-assimilation-applications.pdf

Implementation of 1D+4D-Var assimilation of precipitation affected microwave radiances at ECMWF, Part I: 1D-Var.

Author

Peter Bauer

Philippe Lopez

Angela Benedetti

Deborah Salmond

E. Moreau

2006, Technical memorandum, ECMWF Technical Memoranda

File

7995-implementation-1d4d-var-assimilation-precipitation-affected-microwave-radiances-ecmwf-part-i-1d.pdf

Assimilation of cloud and precipitation affected microwave radiances

Author

Peter Bauer

Philippe Lopez

Deborah Salmond

Alan Geer

2006, Technical memorandum, ECMWF Technical Memoranda

File

7998-assimilation-cloud-and-precipitation-affected-microwave-radiances.pdf

Implementation of 1D+4D-Var assimilation of precipitation affected microwave radiances at ECMWF, Part II: 4D-Var.

Author

Peter Bauer

Philippe Lopez

Deborah Salmond

Angela Benedetti

S. Saarinen

M. Bonazzola

2006, Technical memorandum, ECMWF Technical Memoranda

File

7999-implementation-1d4d-var-assimilation-precipitation-affected-microwave-radiances-ecmwf-part-ii.pdf

Background error statistics for aerosols

Author

Angela Benedetti

Mike Fisher

2006, Technical memorandum, ECMWF Technical Memoranda

File

8059-background-error-statistics-aerosols.pdf

Assimilation of MIPAS limb radiances in the ECMWF system. Part I: Experiments with a 1-dimensional observation operator.

Author

Niels Bormann

Jean-Noël Thépaut

2006, Technical memorandum, ECMWF Technical Memoranda

File

8289-assimilation-mipas-limb-radiances-ecmwf-system-part-i-experiments-1-dimensional-observation.pdf

Assimilation of MIPAS limb radiances in the ECMWF system. Part II: Experiments with a 2-dimensional observation operator and comparison to retrieval assimilation

Author

Niels Bormann

Sean Healy

M. Hamrud

2006, Technical memorandum, ECMWF Technical Memoranda

File

8311-assimilation-mipas-limb-radiances-ecmwf-system-part-ii-experiments-2-dimensional-observation.pdf

Impact of a simple vertical diffusion scheme and of the optimisation time interval onoptimal unstable structures

Author

Roberto Buizza

1993, Technical memorandum, ECMWF Technical Memoranda

File

8412-impact-simple-vertical-diffusion-scheme-and-optimisation-time-interval-onoptimal-unstable.pdf

Computation of optimal perturbations using a local projection operator: A winter casestudy

Author

Roberto Buizza

1993, Technical memorandum, ECMWF Technical Memoranda

File

8413-computation-optimal-perturbations-using-local-projection-operator-winter-casestudy.pdf

The new ECMWF Variable Resolution Ensemble Prediction System (VAREPS): methodology and validation.

Author

Roberto Buizza

Jean-Raymond Bidlot

Nils Wedi

Manuel Fuentes

M. Hamrud

G. Holt

T.N. Palmer

Frédéric Vitart

2006, Technical memorandum, ECMWF Technical Memoranda

File

8472-new-ecmwf-variable-resolution-ensemble-prediction-system-vareps-methodology-and-validation.pdf

Variational assimilation at ECMWF

Author

P. Courtier

Erik Andersson

W.A. Heckley

G.A. Kelly

J. Pailleux

Florence Rabier

Jean-Noël Thépaut

P. Undén

Drasko Vasiljevic

Carla Cardinali

J. Eyre

M. Hamrud

J. Haseler

A. Hollingsworth

A. McNally

A. Stoffelen

1993, Technical memorandum, ECMWF Technical Memoranda

File

8786-variational-assimilation-ecmwf.pdf

Wind-driven eddies and plankton blooms in the North Atlantic Ocean

Author

C. Eden

T. Jung

2006, Technical memorandum, ECMWF Technical Memoranda

File

9259-wind-driven-eddies-and-plankton-blooms-north-atlantic-ocean.pdf

The European summer of 2003: sensitivity to soil water initial conditions.

Author

Laura Ferranti

P. Viterbo

2006, Technical memorandum, ECMWF Technical Memoranda

File

9371-european-summer-2003-sensitivity-soil-water-initial-conditions.pdf

Local versus tropical diabatic heating and the winter North Atlantic Oscillation

Author

R.J. Greatbach

T. Jung

2006, Technical memorandum, ECMWF Technical Memoranda

File

9637-local-versus-tropical-diabatic-heating-and-winter-north-atlantic-oscillation.pdf

Response to the summer 2003 Mediterranean SST anomalies over Europe and Africa.

Author

T. Jung

Laura Ferranti

A.M. Tompkins

2006, Technical memorandum, ECMWF Technical Memoranda

File

10338-response-summer-2003-mediterranean-sst-anomalies-over-europe-and-africa.pdf

Sensitivity of extratropical cyclone characteristics to horizontal resolution in the ECMWF model.

Author

T. Jung

S.K. Gulev

I. Rudeva

V. Soloviov

2006, Technical memorandum, ECMWF Technical Memoranda

File

10341-sensitivity-extratropical-cyclone-characteristics-horizontal-resolution-ecmwf-model.pdf

Use of analysis ensembles in estimating flow-dependent background error variances

Author

E. Kucukkaraca

Mike Fisher

2006, Technical memorandum, ECMWF Technical Memoranda

File

10563-use-analysis-ensembles-estimating-flow-dependent-background-error-variances.pdf

Synoptic cloudiness validation in the ECMWF model

Author

N.G. Kvamstø

1993, Technical memorandum, ECMWF Technical Memoranda

File

10579-synoptic-cloudiness-validation-ecmwf-model.pdf

Search ECMWF publications

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Report on the fourteenth Security Representatives' Meeting , 16-17 May 2006. (Restricted distribution)

Report on the eighteenth meeting of Computing Representatives 8-9 June 2006

Sensitivity of forecast error to initial conditions using the adjoint method

Evaluation of forecast error covariance matrix

Verification statistics and evaluations of ECMWF forecasts in 2005-2006.

Analysis and forecast impact of the main humidity observing systems

Multiple-scattering microwave radiative transfer for data assimilation applications.

Implementation of 1D+4D-Var assimilation of precipitation affected microwave radiances at ECMWF, Part I: 1D-Var.

Assimilation of cloud and precipitation affected microwave radiances

Implementation of 1D+4D-Var assimilation of precipitation affected microwave radiances at ECMWF, Part II: 4D-Var.

Background error statistics for aerosols

Assimilation of MIPAS limb radiances in the ECMWF system. Part I: Experiments with a 1-dimensional observation operator.

Assimilation of MIPAS limb radiances in the ECMWF system. Part II: Experiments with a 2-dimensional observation operator and comparison to retrieval assimilation

Impact of a simple vertical diffusion scheme and of the optimisation time interval onoptimal unstable structures

Computation of optimal perturbations using a local projection operator: A winter casestudy

The new ECMWF Variable Resolution Ensemble Prediction System (VAREPS): methodology and validation.

Variational assimilation at ECMWF

Wind-driven eddies and plankton blooms in the North Atlantic Ocean

The European summer of 2003: sensitivity to soil water initial conditions.

Local versus tropical diabatic heating and the winter North Atlantic Oscillation

Response to the summer 2003 Mediterranean SST anomalies over Europe and Africa.

Sensitivity of extratropical cyclone characteristics to horizontal resolution in the ECMWF model.

Use of analysis ensembles in estimating flow-dependent background error variances

Synoptic cloudiness validation in the ECMWF model

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