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Extended control variable (XCV): skin temperature background correction for the assimilation of clear-sky microwave radiances

Author

2023, Technical memorandum, ECMWF Technical Memoranda

Document

81514-extended-control-variable-xcv-skin-temperature-background-correction-for-the-assimilation-of-clear-sky-microwave-radiances.pdf

Characterisation and correction of orbital biases in AMSU-A and ATMS observations in the ECMWF system

Author

Niels Bormann

Linus Magnusson

David Duncan

Mohamed Dahoui

2023, Technical memorandum, ECMWF Technical Memoranda

Document

81520-characterisation-and-correction-of-orbital-biases-in-amsu-a-and-atms-observations-in-the-ecmwf-system.pdf

Evaluation of ECMWF forecasts, including the 2023 upgrade

Author

Thomas Haiden

Martin Janousek

Frédéric Vitart

Zied Ben-Bouallegue

Fernando Prates

2023, Technical memorandum, ECMWF Technical Memoranda

Document

81389-evaluation-of-ecmwf-forecasts-including-the-2023-upgrade.pdf

Forward operator for polarimetric radio occultation measurements

Author

Daisuke Hotta

Katrin Lonitz

Sean Healy

2023, Technical memorandum, ECMWF Technical Memoranda

File

81358-forward-operator-polarimetric-radio-occultation-measurements.pdf

Superobbing and Finer Thinning for All-sky Humidity Sounder Assimilation

Author

David Duncan

Niels Bormann

Alan Geer

Peter Weston

2023, Technical memorandum, ECMWF Technical Memoranda

File

81345-superobbing-and-finer-thinning-all-sky-humidity-sounder-assimilation.pdf

Software Strategy and Roadmap 2023-2027

Author

Tiago Quintino

Umberto Modigliani

Florian Pappenberger

Sylvie Lamy-Thepaut

Simon Smart

James Hawkes

Iain Russell

Laurent Gougeon

Cristiano Zanna

Baudouin Raoult

2023, Technical memorandum, ECMWF Technical Memoranda

File

81334-software-strategy-and-roadmap-2023-2027.pdf

Report on the twelfth Security Representatives' Meeting, 22-23 April 2004. (Restricted distribution)

Author

P. Prior

2004, Technical memorandum, ECMWF Technical Memoranda

On the equivalence between Kalman smoothing and weak-constraint four-dimensional variational data assimilation.

Author

Mike Fisher

2004, Technical memorandum, ECMWF Technical Memoranda

File

9415-equivalence-between-kalman-smoothing-and-weak-constraint-four-dimensional-variational-data.pdf

Early-delivery suite.

Author

J. Haseler

2004, Technical memorandum, ECMWF Technical Memoranda

File

9793-early-delivery-suite.pdf

The African easterly jet in the ECMWF Integrated forecast system: 4DVar analysis.

Author

A.M. Tompkins

A. Diongue

D.J. Parker

C. Thorncroft

2004, Technical memorandum, ECMWF Technical Memoranda

File

12784-african-easterly-jet-ecmwf-integrated-forecast-system-4dvar-analysis.pdf

Moist physical processes in the IFS: Progress and Plans

Author

A.M. Tompkins

Peter Bechtold

Anton Beljaars

Angela Benedetti

S. Cheinet

Marta Janiskova

M. Köhler

Philippe Lopez

J.-J. Morcrette

2004, Technical memorandum, ECMWF Technical Memoranda

File

12789-moist-physical-processes-ifs-progress-and-plans.pdf

Report on the sixteenth meeting of Computing Representatives, 21-22 April 2004.

Author

P. Prior

2004, Technical memorandum, ECMWF Technical Memoranda

File

11735-report-sixteenth-meeting-computing-representatives-21-22-april-2004.pdf

Verification of TMI-adjusted rainfall analysis of tropical cyclones at ECMWF using TRMM Precipitation Radar observations.

Author

Angela Benedetti

Philippe Lopez

2004, Technical memorandum, ECMWF Technical Memoranda

File

8069-verification-tmi-adjusted-rainfall-analysis-tropical-cyclones-ecmwf-using-trmm-precipitation.pdf

Influence matrix diagnostic of a data assimilation system.

Author

Carla Cardinali

S. Pezzulli

Erik Andersson

2004, Technical memorandum, ECMWF Technical Memoranda

File

8592-influence-matrix-diagnostic-data-assimilation-system.pdf

Experimental use of TRMM Precipitation Radar observations in 1D+4D-Var assimilation

Author

Angela Benedetti

Philippe Lopez

Peter Bauer

E. Moreau

2004, Technical memorandum, ECMWF Technical Memoranda

File

8072-experimental-use-trmm-precipitation-radar-observations-1d4d-var-assimilation.pdf

The structure and realism of sensitivity perturbations and their interpretation as 'Key Analysis Errors'.

Author

L. Isaksen

Mike Fisher

Erik Andersson

2004, Technical memorandum, ECMWF Technical Memoranda

File

10126-structure-and-realism-sensitivity-perturbations-and-their-interpretation-key-analysis-errors.pdf

A stochastic kinetic energy backscatter algorithm for use in ensemble prediction systems.

Author

G.J. Shutts

2004, Technical memorandum, ECMWF Technical Memoranda

File

12214-stochastic-kinetic-energy-backscatter-algorithm-use-ensemble-prediction-systems.pdf

Optimized surface radiation fields derived from METEOSAT imagery and a regional atmospheric model.

Author

D. Meetschen

B. Hurk

F. Ament

M. Drusch

2004, Technical memorandum, ECMWF Technical Memoranda

File

11095-optimized-surface-radiation-fields-derived-meteosat-imagery-and-regional-atmospheric-model.pdf

Performance and application of ECMWF EPS forecasts in the prediction of heavy rain and high winds in Hong Kong.

Author

L.H.Y. Yeung

E.S.T. Lai

Q.C.C. Lam

P.K.Y. Chan

P. Cheung

2004, Technical memorandum, ECMWF Technical Memoranda

File

13180-performance-and-application-ecmwf-eps-forecasts-prediction-heavy-rain-and-high-winds-hong-kong.pdf

Incorporating state-dependent temperature-salinity constraints in the background error covariance of variational ocean data assimilation.

Author

S. Ricci

A.T. Weaver

J. Vialard

P. Rogel

2004, Technical memorandum, ECMWF Technical Memoranda

File

11895-incorporating-state-dependent-temperature-salinity-constraints-background-error-covariance.pdf

ECMWF's global snow analysis: Assessment and revision based on satellite observations.

Author

M. Drusch

Drasko Vasiljevic

P. Viterbo

2004, Technical memorandum, ECMWF Technical Memoranda

File

9139-ecmwfs-global-snow-analysis-assessment-and-revision-based-satellite-observations.pdf

Soil moisture retrieval during the Southern Great Plains Hydrology Experiment 1999: A comparison between experimental remote sensing data and operational products.

Author

M. Drusch

E.F. Wood

H. Gao

A. Thiele

2004, Technical memorandum, ECMWF Technical Memoranda

File

9141-soil-moisture-retrieval-during-southern-great-plains-hydrology-experiment-1999-comparison.pdf

Performance of the ECMWF and the BoM ensemble systems in the Southern Hemisphere

Author

W. Bourke

Roberto Buizza

M. Naughton

2004, Technical memorandum, ECMWF Technical Memoranda

File

8333-performance-ecmwf-and-bom-ensemble-systems-southern-hemisphere.pdf

Balanced tropical data assimilation based on a study of equatorial waves in ECMWF short-range forecast errors.

Author

Erik Zagar

Mike Fisher

2004, Technical memorandum, ECMWF Technical Memoranda

File

11364-balanced-tropical-data-assimilation-based-study-equatorial-waves-ecmwf-short-range-forecast.pdf

Search ECMWF publications

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Extended control variable (XCV): skin temperature background correction for the assimilation of clear-sky microwave radiances

Characterisation and correction of orbital biases in AMSU-A and ATMS observations in the ECMWF system

Evaluation of ECMWF forecasts, including the 2023 upgrade

Forward operator for polarimetric radio occultation measurements

Superobbing and Finer Thinning for All-sky Humidity Sounder Assimilation

Software Strategy and Roadmap 2023-2027

Report on the twelfth Security Representatives' Meeting, 22-23 April 2004. (Restricted distribution)

On the equivalence between Kalman smoothing and weak-constraint four-dimensional variational data assimilation.

Early-delivery suite.

The African easterly jet in the ECMWF Integrated forecast system: 4DVar analysis.

Moist physical processes in the IFS: Progress and Plans

Report on the sixteenth meeting of Computing Representatives, 21-22 April 2004.

Verification of TMI-adjusted rainfall analysis of tropical cyclones at ECMWF using TRMM Precipitation Radar observations.

Influence matrix diagnostic of a data assimilation system.

Experimental use of TRMM Precipitation Radar observations in 1D+4D-Var assimilation

The structure and realism of sensitivity perturbations and their interpretation as 'Key Analysis Errors'.

A stochastic kinetic energy backscatter algorithm for use in ensemble prediction systems.

Optimized surface radiation fields derived from METEOSAT imagery and a regional atmospheric model.

Performance and application of ECMWF EPS forecasts in the prediction of heavy rain and high winds in Hong Kong.

Incorporating state-dependent temperature-salinity constraints in the background error covariance of variational ocean data assimilation.

ECMWF's global snow analysis: Assessment and revision based on satellite observations.

Soil moisture retrieval during the Southern Great Plains Hydrology Experiment 1999: A comparison between experimental remote sensing data and operational products.

Performance of the ECMWF and the BoM ensemble systems in the Southern Hemisphere

Balanced tropical data assimilation based on a study of equatorial waves in ECMWF short-range forecast errors.

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