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Observing system experiments with the 3D-Var assimilation system

Author

P. Undén

G.A. Kelly

D. Le Meur

L. Isaksen

1997, Technical memorandum, ECMWF Technical Memoranda

File

12870-observing-system-experiments-3d-var-assimilation-system.pdf

Simulation of fog with the ECMWF prognostic cloud scheme

Author

J. Teixeira

1997, Technical memorandum, ECMWF Technical Memoranda

File

12585-simulation-fog-ecmwf-prognostic-cloud-scheme.pdf

Recent experimentation on 4D-Var and first results from a Simplified Kalman Filter

Author

Florence Rabier

J.-F. Mahfouf

Mike Fisher

H Järvinen

Adrian Simmons

Erik Andersson

F. Bouttier

P. Courtier

M. Hamrud

J. Haseler

A. Hollingsworth

L. Isaksen

E. Klinker

S. Saarinen

C. Temperton

Jean-Noël Thépaut

P. Undén

Drasko Vasiljevic

1997, Technical memorandum, ECMWF Technical Memoranda

File

11798-recent-experimentation-4d-var-and-first-results-simplified-kalman-filter.pdf

Report on the Tenth meeting of Member State Computing Representatives, 7-8 October 1997

Author

A. Lea

1997, Technical memorandum, ECMWF Technical Memoranda

Observation screening and background quality control in the ECMWF 3D-Var data assimilation system

Author

H Järvinen

P. Undén

1997, Technical memorandum, ECMWF Technical Memoranda

File

10352-observation-screening-and-background-quality-control-ecmwf-3d-var-data-assimilation-system.pdf

A modified set up of the advection scheme in the ECMWF wave model

Author

Jean-Raymond Bidlot

Peter Janssen

B. Hansen

H. Günther

1997, Technical memorandum, ECMWF Technical Memoranda

File

8232-modified-set-advection-scheme-ecmwf-wave-model.pdf

Effect of surface gravity waves on the heat flux

Author

Peter Janssen

1997, Technical memorandum, ECMWF Technical Memoranda

File

10190-effect-surface-gravity-waves-heat-flux.pdf

The 1997 revision of the Jb term in 3D/4D-Var

Author

F. Bouttier

J.C. Derber

Mike Fisher

1997, Technical memorandum, ECMWF Technical Memoranda

File

8349-1997-revision-jb-term-3d4d-var.pdf

Use of the Fujitsu VPP700 for weather forecasting at ECMWF

Author

D. Dent

G.R. Hoffmann

Peter Janssen

Adrian Simmons

1997, Technical memorandum, ECMWF Technical Memoranda

File

8988-use-fujitsu-vpp700-weather-forecasting-ecmwf.pdf

On spurious chaotic behaviour in the discretized ECMWF physics scheme

Author

Peter Janssen

J. Doyle

1997, Technical memorandum, ECMWF Technical Memoranda

File

10223-spurious-chaotic-behaviour-discretized-ecmwf-physics-scheme.pdf

Performance of TOVS data in the ECMWF reanalysis 1979-1993

Author

S. Uppala

1997, Technical memorandum, ECMWF Technical Memoranda

File

12878-performance-tovs-data-ecmwf-reanalysis-1979-1993.pdf

Modifications to the ECMWF WAM code

Author

Jean-Raymond Bidlot

B. Hansen

Peter Janssen

1997, Technical memorandum, ECMWF Technical Memoranda

File

8231-modifications-ecmwf-wam-code.pdf

Tropical-extratropical interaction associated with the 30-60 day oscillation and its impact on medium and extended range predictability

Author

Laura Ferranti

T.N. Palmer

Franco Molteni

E. Klinker

1989, Technical memorandum, ECMWF Technical Memoranda

File

74461-tropical-extratropical-interaction-associated-30-60-day-oscillation-and-its-impact-medium-and.pdf

Software organization of the variational analysis: Format of observations

Author

J. Pailleux

P. Undén

1989, Technical memorandum, ECMWF Technical Memoranda

File

11482-software-organization-variational-analysis-format-observations.pdf

Description of the radiation scheme in the ECMWF model

Author

J.-J. Morcrette

1989, Technical memorandum, ECMWF Technical Memoranda

File

11234-description-radiation-scheme-ecmwf-model.pdf

Observing system experiments on NESDIS statistical retrievals of TOVS data using the 1988 ECMWF data assimilation system

Author

Erik Andersson

A. Hollingsworth

G.A. Kelly

P. Lönnberg

J. Pailleux

Z. Zhang

1989, Technical memorandum, ECMWF Technical Memoranda

File

7755-observing-system-experiments-nesdis-statistical-retrievals-tovs-data-using-1988-ecmwf-data.pdf

Data assimilation and forecast experiment at ECMWF using the '3I' retrieval scheme for satellite soundings

Author

J-F. Flobert

Erik Andersson

A. Chedin

G.A. Kelly

J. Pailleux

N.A. Scott

1989, Technical memorandum, ECMWF Technical Memoranda

File

9430-data-assimilation-and-forecast-experiment-ecmwf-using-3i-retrieval-scheme-satellite-soundings.pdf

Quality control of NESDIS physical retrievals of TOVS satellite data

Author

G.A. Kelly

Erik Andersson

A. Hollingsworth

P. Lönnberg

J. Pailleux

Z. Zhang

1989, Technical memorandum, ECMWF Technical Memoranda

File

10432-quality-control-nesdis-physical-retrievals-tovs-satellite-data.pdf

Research and operational developments related to the use of satellite data in the ECMWF assimilations system

Author

J. Pailleux

G.A. Kelly

A. Hollingsworth

P. Lönnberg

Z. Zhang

J-F. Flobert

1989, Technical memorandum, ECMWF Technical Memoranda

File

11481-research-and-operational-developments-related-use-satellite-data-ecmwf-assimilations-system.pdf

Evaluation and development of the ECMWF humidity analysis

Author

Z. Zhang

J. Pailleux

G.A. Kelly

1989, Technical memorandum, ECMWF Technical Memoranda

File

13207-evaluation-and-development-ecmwf-humidity-analysis.pdf

Synoptic characteristics of the ECMWF Chernobyl data set

Author

A. Rubli

1989, Technical memorandum, ECMWF Technical Memoranda

File

12023-synoptic-characteristics-ecmwf-chernobyl-data-set.pdf

Changes in the ECMWF analysis-forecasting scheme and the systematic error of the model

Author

K Arpe

1989, Technical memorandum, ECMWF Technical Memoranda

File

7812-changes-ecmwf-analysis-forecasting-scheme-and-systematic-error-model.pdf

Report on fifth meeting of Member State Computing Representatives, 11-14 April 1989

Author

D. Maretis

1989, Technical memorandum, ECMWF Technical Memoranda

File

10972-report-fifth-meeting-member-state-computing-representatives-11-14-april-1989.pdf

First studies with a prognostic cloud generation scheme

Author

H. Le Treut

1989, Technical memorandum, ECMWF Technical Memoranda

File

10675-first-studies-prognostic-cloud-generation-scheme.pdf

Search ECMWF publications

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Observing system experiments with the 3D-Var assimilation system

Simulation of fog with the ECMWF prognostic cloud scheme

Recent experimentation on 4D-Var and first results from a Simplified Kalman Filter

Report on the Tenth meeting of Member State Computing Representatives, 7-8 October 1997

Observation screening and background quality control in the ECMWF 3D-Var data assimilation system

A modified set up of the advection scheme in the ECMWF wave model

Effect of surface gravity waves on the heat flux

The 1997 revision of the Jb term in 3D/4D-Var

Use of the Fujitsu VPP700 for weather forecasting at ECMWF

On spurious chaotic behaviour in the discretized ECMWF physics scheme

Performance of TOVS data in the ECMWF reanalysis 1979-1993

Modifications to the ECMWF WAM code

Tropical-extratropical interaction associated with the 30-60 day oscillation and its impact on medium and extended range predictability

Software organization of the variational analysis: Format of observations

Description of the radiation scheme in the ECMWF model

Observing system experiments on NESDIS statistical retrievals of TOVS data using the 1988 ECMWF data assimilation system

Data assimilation and forecast experiment at ECMWF using the '3I' retrieval scheme for satellite soundings

Quality control of NESDIS physical retrievals of TOVS satellite data

Research and operational developments related to the use of satellite data in the ECMWF assimilations system

Evaluation and development of the ECMWF humidity analysis

Synoptic characteristics of the ECMWF Chernobyl data set

Changes in the ECMWF analysis-forecasting scheme and the systematic error of the model

Report on fifth meeting of Member State Computing Representatives, 11-14 April 1989

First studies with a prognostic cloud generation scheme

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