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Background errors in HIRLAM variational data assimilation

Author

M. Lindskog

O. Vignes

N. Gustafsson

T. Landelius

S. Thorsteinsson

2007, Presentation

File

15672-background-errors-hirlam-variational-data-assimilation.pdf

Ensemble forecasting and flow-dependent estimates of initial uncertainty

Author

Martin Leutbecher

Roberto Buizza

L. Isaksen

2007, Presentation

File

15673-ensemble-forecasting-and-flow-dependent-estimates-initial-uncertainty.pdf

Spatial filtering of assimilation ensemble statistics: increase of sample size by local spatial averaging

Author

O. Pannekoucke

L. Berre

G. Desroziers

S. Ştefănescu

B. Chapnik

L. Raynaud

2007, Presentation

File

15674-spatial-filtering-assimilation-ensemble-statistics-increase-sample-size-local-spatial.pdf

Representation of inhomogeneous, non-seperable covariances by sparse wavelet-transformed matrices

Author

A. Rhodin

H. Anlauf

2007, Presentation

File

15675-representation-inhomogeneous-non-seperable-covariances-sparse-wavelet-transformed-matrices.pdf

Report on the fifteenth Security Representatives' Meeting, 21-22 May 2007. (Restricted distribution)

Author

P. Prior

2007, Technical memorandum, ECMWF Technical Memoranda

Report on the nineteenth meeting of Computing Representatives 22-24 May 2007

Author

P. Prior

2007, Technical memorandum, ECMWF Technical Memoranda

File

11742-report-nineteenth-meeting-computing-representatives-22-24-may-2007.pdf

Evaluating cloud fraction and ice water content in the ECMWF integrated forecast system and three other operational forecasts models using long-term ground-based radar and lidar measurements.

Author

D. Bouniol

A. Protat

J. Delanoë

J. Pelon

D.P. Donovan

J.-M. Piriou

F. Bouyssel

A.M. Tompkins

D. Wilson

Y. Morille

M. Haeffelin

E.J. O'Connor

Robin Hogan

A.J. Illingworth

2007, Technical memorandum, ECMWF Technical Memoranda

File

8330-evaluating-cloud-fraction-and-ice-water-content-ecmwf-integrated-forecast-system-and-three.pdf

Evaluating cloud occurrence in the ECMWF integrated forecast system and three other operational forecasts models using long-term ground-based radar and lidar measurements.

Author

D. Bouniol

A. Protat

J. Delanoë

J. Pelon

D.P. Donovan

J.-M. Piriou

F. Bouyssel

A.M. Tompkins

D. Wilson

Y. Morille

M. Haeffelin

E.J. O'Connor

Robin Hogan

A.J. Illingworth

2007, Technical memorandum, ECMWF Technical Memoranda

File

8331-evaluating-cloud-occurrence-ecmwf-integrated-forecast-system-and-three-other-operational.pdf

Analysis of Leaf Area Index in the ECMWF land surface scheme and impact on latent heat and carbon fluxes: Applications to West Africa

Author

L. Jarlan

Gianpaolo Balsamo

S. Lafont

Anton Beljaars

J-C. Calvet

E. Mougin

2007, Technical memorandum, ECMWF Technical Memoranda

File

10247-analysis-leaf-area-index-ecmwf-land-surface-scheme-and-impact-latent-heat-and-carbon-fluxes.pdf

Evaluation of revised parameterizations of sub-grid orographic drag.

Author

A. Orr

2007, Technical memorandum, ECMWF Technical Memoranda

File

11452-evaluation-revised-parameterizations-sub-grid-orographic-drag.pdf

Downscaling of ECMWF seasonal integrations by RegCM

Author

C. Brankovic

M. Patarci

2007, Conference Paper

File

73806-downscaling-ecmwf-seasonal-integrations-regcm.pdf

Convection in Lorenz's global energy cycle with the ECMWF model.

Author

M. Steinheimer

M. Hantel

Peter Bechtold

2007, Technical memorandum, ECMWF Technical Memoranda

File

12394-convection-lorenzs-global-energy-cycle-ecmwf-model.pdf

Evaluation of the impact of the space component of the Global Observing System through Observing System Experiments.

Author

G.A. Kelly

Jean-Noël Thépaut

2007, Report, Final Report SOW EUM.MET.SOW.04.0290, EUMETSAT/ECMWF Fellowship Programme Research Reports

File

10434-evaluation-impact-space-component-global-observing-system-through-observing-system-experiments.pdf

Recent advances in radiation transfer parametrizations

Author

J.-J. Morcrette

Peter Bechtold

Anton Beljaars

Angela Benedetti

Axel Bonet

F. Doblas-Reyes

J. Hague

M. Hamrud

J. Haseler

J. Kaiser

Martin Leutbecher

G. Mozdzynski

Miha Razinger

Deborah Salmond

S. Serrar

Martin Suttie

A.M. Tompkins

A. Untch

Antje Weisheimer

2007, Technical memorandum, ECMWF Technical Memoranda

File

11264-recent-advances-radiation-transfer-parametrizations.pdf

The Ensemble Prediction System - Recent and Ongoing Developments

Author

T.N. Palmer

Roberto Buizza

Martin Leutbecher

Renate Hagedorn

T. Jung

Mark Rodwell

Frédéric Vitart

J. Berner

E. Hágel

A.R. Lawrence

Florian Pappenberger

Y-Y. Park

L von Bremen

I Gilmour

2007, Technical memorandum, ECMWF Technical Memoranda

File

12527-ensemble-prediction-system-recent-and-ongoing-developments.pdf

Lessons learnt from the 1D+4D-Var assimilation of rain and cloud affected SSM/I observations at ECMWF

Author

Alan Geer

Peter Bauer

Philippe Lopez

2007, Technical memorandum, ECMWF Technical Memoranda

File

9510-lessons-learnt-1d4d-var-assimilation-rain-and-cloud-affected-ssmi-observations-ecmwf.pdf

Lessons learnt from the 1D+4D-Var assimilation of rain and cloud affected SSM/I observations at ECMWF

Author

Alan Geer

Peter Bauer

Philippe Lopez

2007, Report, EUMETSAT/ECMWF Fellowship Programme Research Reports, EUMETSAT/ECMWF Fellowship Programme

File

9511-lessons-learnt-1d4d-var-assimilation-rain-and-cloud-affected-ssmi-observations-ecmwf.pdf

The technical support for global validation of ERS Wind and Wave Products at ECMWF (April 2004 - June 2007). Final Report for ESA contract 18212/04/I-OL

Author

Saleh Abdalla

Hans Hersbach

2007, Report, Final Report for ESA contract 18212/04/I-OL, ESA Contract Report

File

7622-technical-support-global-validation-ers-wind-and-wave-products-ecmwf-april-2004-june-2007-final.pdf

On the representation of initial uncertainties with multiple sets of singular vectors optimised for different criteria.

Author

Martin Leutbecher

2007, Technical memorandum, ECMWF Technical Memoranda

File

10733-representation-initial-uncertainties-multiple-sets-singular-vectors-optimised-different.pdf

A reduced radiation grid for the ECMWF Integrated Forecasting System

Author

J.-J. Morcrette

G. Mozdzynski

Martin Leutbecher

2007, Technical memorandum, ECMWF Technical Memoranda

File

11278-reduced-radiation-grid-ecmwf-integrated-forecasting-system.pdf

Impact of SSM/I observations related to moisture, clouds and precipitation on global NWP forecast skill

Author

G.A. Kelly

Peter Bauer

Alan Geer

Philippe Lopez

Jean-Noël Thépaut

2007, Technical memorandum, ECMWF Technical Memoranda

File

10445-impact-ssmi-observations-related-moisture-clouds-and-precipitation-global-nwp-forecast-skill.pdf

The ADM-Aeolus wind retrieval algorithms

Author

D. Tan

Erik Andersson

J. de Kloe

G.-J. Marseille

A. Stoffelen

P. Poli

M.-L. Denneulin

A. Dabas

D. Huber

O. Reitebuch

P. Flamant

O. Le Rille

H. Nett

2007, Technical memorandum, ECMWF Technical Memoranda

File

12561-adm-aeolus-wind-retrieval-algorithms.pdf

Influence of the quasi-biennial oscillation on the ECMWF model short-range forecast errors in the tropical stratosphere.

Author

N. Zagar

Erik Andersson

Mike Fisher

A. Untch

2007, Technical memorandum, ECMWF Technical Memoranda

File

13199-influence-quasi-biennial-oscillation-ecmwf-model-short-range-forecast-errors-tropical.pdf

Selection of IASI channels for use in numerical weather prediction

Author

A. Collard

2007, Technical memorandum, ECMWF Technical Memoranda

File

8760-selection-iasi-channels-use-numerical-weather-prediction.pdf

Search ECMWF publications

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Background errors in HIRLAM variational data assimilation

Ensemble forecasting and flow-dependent estimates of initial uncertainty

Spatial filtering of assimilation ensemble statistics: increase of sample size by local spatial averaging

Representation of inhomogeneous, non-seperable covariances by sparse wavelet-transformed matrices

Report on the fifteenth Security Representatives' Meeting, 21-22 May 2007. (Restricted distribution)

Report on the nineteenth meeting of Computing Representatives 22-24 May 2007

Evaluating cloud fraction and ice water content in the ECMWF integrated forecast system and three other operational forecasts models using long-term ground-based radar and lidar measurements.

Evaluating cloud occurrence in the ECMWF integrated forecast system and three other operational forecasts models using long-term ground-based radar and lidar measurements.

Analysis of Leaf Area Index in the ECMWF land surface scheme and impact on latent heat and carbon fluxes: Applications to West Africa

Evaluation of revised parameterizations of sub-grid orographic drag.

Downscaling of ECMWF seasonal integrations by RegCM

Convection in Lorenz's global energy cycle with the ECMWF model.

Evaluation of the impact of the space component of the Global Observing System through Observing System Experiments.

Recent advances in radiation transfer parametrizations

The Ensemble Prediction System - Recent and Ongoing Developments

Lessons learnt from the 1D+4D-Var assimilation of rain and cloud affected SSM/I observations at ECMWF

Lessons learnt from the 1D+4D-Var assimilation of rain and cloud affected SSM/I observations at ECMWF

The technical support for global validation of ERS Wind and Wave Products at ECMWF (April 2004 - June 2007). Final Report for ESA contract 18212/04/I-OL

On the representation of initial uncertainties with multiple sets of singular vectors optimised for different criteria.

A reduced radiation grid for the ECMWF Integrated Forecasting System

Impact of SSM/I observations related to moisture, clouds and precipitation on global NWP forecast skill

The ADM-Aeolus wind retrieval algorithms

Influence of the quasi-biennial oscillation on the ECMWF model short-range forecast errors in the tropical stratosphere.

Selection of IASI channels for use in numerical weather prediction

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