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Comparison of Total Energy and Hessian Singular Vectors: Implications for Observation Targeting NOT PUBLISHED

Author

A.R. Lawrence

Martin Leutbecher

T.N. Palmer

2007, Technical memorandum, ECMWF Technical Memoranda

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

Report on second meeting of Member State Computing Representatives 14-16 October 1981

Author

A. Lea

1981, Technical memorandum, ECMWF Technical Memoranda

File

10681-report-second-meeting-member-state-computing-representatives-14-16-october-1981.pdf

Report on 4th meeting of Member State Computing Representatives, 9-10 October 1986

Author

A. Lea

1987, Technical memorandum, ECMWF Technical Memoranda

File

10682-report-4th-meeting-member-state-computing-representatives-9-10-october-1986.pdf

Report on the sixth meeting of Member State Computing Representatives, 3-5 June 1991

Author

A. Lea

1991, Technical memorandum, ECMWF Technical Memoranda

File

10683-report-sixth-meeting-member-state-computing-representatives-3-5-june-1991.pdf

Report on the seventh meeting of Member State Computing Representatives, 28-30 September 1992

Author

A. Lea

1992, Technical memorandum, ECMWF Technical Memoranda

File

10684-report-seventh-meeting-member-state-computing-representatives-28-30-september-1992.pdf

Report on the eighth meeting of Member State Computing Representatives, 27-28 September 1994

Author

A. Lea

1994, Technical memorandum, ECMWF Technical Memoranda

File

10685-report-eighth-meeting-member-state-computing-representatives-27-28-september-1994.pdf

Report on the ninth meeting of Member State Computing Representatives, 7-8 October 1996

Author

A. Lea

1996, Technical memorandum, ECMWF Technical Memoranda

File

10686-report-ninth-meeting-member-state-computing-representatives-7-8-october-1996.pdf

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

Author

A. Lea

1997, Technical memorandum, ECMWF Technical Memoranda

Report on the third meeting of Member State Computing Representatives 18-20 May 1983

Author

A. Lea

P.J. Prior

1983, Technical memorandum, ECMWF Technical Memoranda

File

10688-report-third-meeting-member-state-computing-representatives-18-20-may-1983.pdf

Assessment of AMV's from COMS in the ECMWF system

Author

S-H. Lee

Kirsti Salonen

Niels Bormann

2015, Technical memorandum, ECMWF Technical Memoranda

File

10690-assessment-amvs-coms-ecmwf-system.pdf

Impact of NSCAT winds on tropical cyclones in the ECMWF 4D-Var assimilation system

Author

M. Leidner

L. Isaksen

R. Hoffman

2001, Technical memorandum, ECMWF Technical Memoranda

File

10705-impact-nscat-winds-tropical-cyclones-ecmwf-4d-var-assimilation-system.pdf

An evaluation of the GKS proposal for standards in graphics with respect to the GSPC core proposal

Author

A. Lemaire

H. Watkins

A. Ducrot

E. Saltel

1981, Technical memorandum, ECMWF Technical Memoranda

File

10712-evaluation-gks-proposal-standards-graphics-respect-gspc-core-proposal.pdf

A reduced rank estimate of forecast error variance changes due to intermittent modifications of the observing network

Author

Martin Leutbecher

2002, Technical memorandum, ECMWF Technical Memoranda

File

10720-reduced-rank-estimate-forecast-error-variance-changes-due-intermittent-modifications-observing.pdf

Potential improvement of forecasts of two severe storms using targeted observations

Author

Martin Leutbecher

J. Barkmeijer

T.N. Palmer

A.J. Thorpe

2002, Technical memorandum, ECMWF Technical Memoranda

File

10726-potential-improvement-forecasts-two-severe-storms-using-targeted-observations.pdf

Ensemble forecasting

Author

Martin Leutbecher

T.N. Palmer

2007, Technical memorandum, ECMWF Technical Memoranda

File

10729-ensemble-forecasting.pdf

On ensemble prediction using singular vectors started from forecasts.

Author

Martin Leutbecher

2005, Technical memorandum, ECMWF Technical Memoranda

File

10732-ensemble-prediction-using-singular-vectors-started-forecasts.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

Numerical experiments on the seasonal transition of the general circulation over Asia in summer 1979

Author

J. Li-Ren

S. Tibaldi

1983, Technical memorandum, ECMWF Technical Memoranda

File

10744-numerical-experiments-seasonal-transition-general-circulation-over-asia-summer-1979.pdf

Impact of the representation of the infiltration on the river flow during intense rainfall events in Jules

Author

C. Largeron

H.L. Cloke

A. Verhoef

A. Martinez-de-la-Torre

Anna Mueller-Quintino

2018, Technical memorandum, ECMWF Technical Memoranda

File

18245-impact-representation-infiltration-river-flow-during-intense-rainfall-events-jules.pdf

Report on Stratosphere Task Force

Author

T.G. Shepherd

I. Polichtchouk

Robin Hogan

A.J. Simmons

2018, Technical memorandum, ECMWF Technical Memoranda

File

18259-report-stratosphere-task-force.pdf

OCEAN5: The ECMWF Ocean Reanalysis System and its Real-Time analysis component

Author

Hao Zuo

Magdalena Alonso-Balmaseda

K. Mogensen

Steffen Tietsche

2018, Technical memorandum, ECMWF Technical Memoranda

File

18519-ocean5-ecmwf-ocean-renalysis-system-and-its-real-time-analysis-component.pdf

Implicit and explicit cross-correlations in coupled data assimilation

Author

Patrick Laloyaux

S. Frolov

B. Ménétrier

Massimo Bonavita

2018, Technical memorandum, ECMWF Technical Memoranda

File

18552-implicit-and-explicit-cross-correlations-coupled-data-assimilation.pdf

Nonlinear effects in 4D-Var

Author

Massimo Bonavita

Peter Lean

Elias Hólm

2018, Technical memorandum, ECMWF Technical Memoranda

File

18596-nonlinear-effects-4d-var.pdf

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Comparison of Total Energy and Hessian Singular Vectors: Implications for Observation Targeting NOT PUBLISHED

First studies with a prognostic cloud generation scheme

Report on second meeting of Member State Computing Representatives 14-16 October 1981

Report on 4th meeting of Member State Computing Representatives, 9-10 October 1986

Report on the sixth meeting of Member State Computing Representatives, 3-5 June 1991

Report on the seventh meeting of Member State Computing Representatives, 28-30 September 1992

Report on the eighth meeting of Member State Computing Representatives, 27-28 September 1994

Report on the ninth meeting of Member State Computing Representatives, 7-8 October 1996

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

Report on the third meeting of Member State Computing Representatives 18-20 May 1983

Assessment of AMV's from COMS in the ECMWF system

Impact of NSCAT winds on tropical cyclones in the ECMWF 4D-Var assimilation system

An evaluation of the GKS proposal for standards in graphics with respect to the GSPC core proposal

A reduced rank estimate of forecast error variance changes due to intermittent modifications of the observing network

Potential improvement of forecasts of two severe storms using targeted observations

Ensemble forecasting

On ensemble prediction using singular vectors started from forecasts.

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

Numerical experiments on the seasonal transition of the general circulation over Asia in summer 1979

Impact of the representation of the infiltration on the river flow during intense rainfall events in Jules

Report on Stratosphere Task Force

OCEAN5: The ECMWF Ocean Reanalysis System and its Real-Time analysis component

Implicit and explicit cross-correlations in coupled data assimilation

Nonlinear effects in 4D-Var

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