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The representation of non-orographic gravity waves in the IFS Part I: Assessment of the middle atmosphere climate with Rayleigh friction

Author

A. Orr

Nils Wedi

2009, Technical memorandum, ECMWF Technical Memoranda

File

11447-representation-non-orographic-gravity-waves-ifs-part-i-assessment-middle-atmosphere-climate.pdf

GEMS data assimilation system for chemically reactive gases

Author

Antje Inness

Johannes Flemming

Martin Suttie

Luke Jones

2009, Technical memorandum, ECMWF Technical Memoranda

File

10109-gems-data-assimilation-system-chemically-reactive-gases.pdf

4D-Var assimilation of MERIS total column water vapour retrievals over land

Author

Peter Bauer

2009, Technical memorandum, ECMWF Technical Memoranda

File

8002-4d-var-assimilation-meris-total-column-water-vapour-retrievals-over-land.pdf

The RTTOV-9 upgrade for clear-sky radiance assimilation in the IFS

Author

Niels Bormann

Deborah Salmond

Marco Matricardi

Alan Geer

M. Hamrud

2009, Technical memorandum, ECMWF Technical Memoranda

File

8285-rttov-9-upgrade-clear-sky-radiance-assimilation-ifs.pdf

The Radiometric Sensitivity Requirements for Satellite Microwave Temperature Sounding Instruments for NWP

Author

W. Bell

S. Di Michele

Peter Bauer

A. McNally

S.J. English

Nigel Atkinson

J. Charlton

2009, Technical memorandum, ECMWF Technical Memoranda

File

8051-radiometric-sensitivity-requirements-satellite-microwave-temperature-sounding-instruments-nwp.pdf

Toward a consistent reanalysis of the upper stratosphere based on radiance measurements from SSU and AMSU-A.

Author

S. Kobayashi

Marco Matricardi

S. Uppala

2009, Technical memorandum, ECMWF Technical Memoranda

File

10519-toward-consistent-reanalysis-upper-stratosphere-based-radiance-measurements-ssu-and-amsu.pdf

An assessment of the accuracy of the RTTOV fast radiative transfer model using IASI data

Author

Marco Matricardi

2009, Technical memorandum, ECMWF Technical Memoranda

File

11023-assessment-accuracy-rttov-fast-radiative-transfer-model-using-iasi-data.pdf

Inter-comparison of Targeted Observation Guidance for Tropical Cyclones in the North Western Pacific

Author

C.-C. Wu

Jen-Her Chen

S. Majumdar

M. Peng

C. Reynolds

S. Aberson

Roberto Buizza

Yamaguchi Chen

T. Nakazawa

K.-H. Cho

2009, Technical memorandum, ECMWF Technical Memoranda

File

13153-inter-comparison-targeted-observation-guidance-tropical-cyclones-north-western-pacific.pdf

Assessment of ECMWF forecasts: widespread rainfall events during the Indian summer monsoon

Author

M. Mujumdar

Franco Molteni

A Ghelli

Frédéric Vitart

Paul Dando

J.M. Slingo

2009, Technical memorandum, ECMWF Technical Memoranda

File

11307-assessment-ecmwf-forecasts-widespread-rainfall-events-during-indian-summer-monsoon.pdf

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

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

Author

A. Lea

1997, Technical memorandum, ECMWF Technical Memoranda

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

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

Search ECMWF publications

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The representation of non-orographic gravity waves in the IFS Part I: Assessment of the middle atmosphere climate with Rayleigh friction

GEMS data assimilation system for chemically reactive gases

4D-Var assimilation of MERIS total column water vapour retrievals over land

The RTTOV-9 upgrade for clear-sky radiance assimilation in the IFS

The Radiometric Sensitivity Requirements for Satellite Microwave Temperature Sounding Instruments for NWP

Toward a consistent reanalysis of the upper stratosphere based on radiance measurements from SSU and AMSU-A.

An assessment of the accuracy of the RTTOV fast radiative transfer model using IASI data

Inter-comparison of Targeted Observation Guidance for Tropical Cyclones in the North Western Pacific

Assessment of ECMWF forecasts: widespread rainfall events during the Indian summer monsoon

Observing system experiments with the 3D-Var assimilation system

Simulation of fog with the ECMWF prognostic cloud scheme

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

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

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

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