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"1D+4D-Var" assimilation of NCEP Stage IV radar and gauge hourly precipitation data.

Author

Philippe Lopez

Peter Bauer

2006, Technical memorandum, ECMWF Technical Memoranda

File

10798-1d4d-var-assimilation-ncep-stage-iv-radar-and-gauge-hourly-precipitation-data.pdf

A comparison of ETKF Targeting Guidance with ECMWF and NRL TE-SVs Targeting Guidance

Author

S. Majumdar

C.H. Bishop

Roberto Buizza

R. Gelaro

2002, Technical memorandum, ECMWF Technical Memoranda

File

10944-comparison-etkf-targeting-guidance-ecmwf-and-nrl-te-svs-targeting-guidance.pdf

A multivariate balance operator for variational ocean data assimilation.

Author

A.T. Weaver

C. Deltel

E. Machu

S. Ricci

N. Daget

2006, Technical memorandum, ECMWF Technical Memoranda

File

13007-multivariate-balance-operator-variational-ocean-data-assimilation.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

Analysis and forecast impact of the main humidity observing systems

Author

Erik Andersson

E. Hólm

Peter Bauer

Anton Beljaars

G.A. Kelly

A. McNally

Adrian Simmons

Jean-Noël Thépaut

A.M. Tompkins

2006, Technical memorandum, ECMWF Technical Memoranda

File

7766-analysis-and-forecast-impact-main-humidity-observing-systems.pdf

Assessment of European wind profiler data, in an NWP context

Author

Erik Andersson

Anotonio Garcia-Mendez

2002, Technical memorandum, ECMWF Technical Memoranda

File

7749-assessment-european-wind-profiler-data-nwp-context.pdf

Assessment of the ECMWF ensemble prediction system for waves and marine winds

Author

Ø. Saetra

Jean-Raymond Bidlot

2002, Technical memorandum, ECMWF Technical Memoranda

File

12060-assessment-ecmwf-ensemble-prediction-system-waves-and-marine-winds.pdf

Assimilation and Modelling of the Hydrological Cycle: ECMWF's Status and Plans

Author

E. Hólm

Erik Andersson

Anton Beljaars

Philippe Lopez

J.-F. Mahfouf

Adrian Simmons

Jean-Noël Thépaut

2002, Technical memorandum, ECMWF Technical Memoranda

File

9996-assimilation-and-modelling-hydrological-cycle-ecmwfs-status-and-plans.pdf

Assimilation of cloud and precipitation affected microwave radiances

Author

Peter Bauer

Philippe Lopez

Deborah Salmond

Alan Geer

2006, Technical memorandum, ECMWF Technical Memoranda

File

7998-assimilation-cloud-and-precipitation-affected-microwave-radiances.pdf

Assimilation of MIPAS limb radiances in the ECMWF system. Part I: Experiments with a 1-dimensional observation operator.

Author

Niels Bormann

Jean-Noël Thépaut

2006, Technical memorandum, ECMWF Technical Memoranda

File

8289-assimilation-mipas-limb-radiances-ecmwf-system-part-i-experiments-1-dimensional-observation.pdf

Assimilation of MIPAS limb radiances in the ECMWF system. Part II: Experiments with a 2-dimensional observation operator and comparison to retrieval assimilation

Author

Niels Bormann

Sean Healy

M. Hamrud

2006, Technical memorandum, ECMWF Technical Memoranda

File

8311-assimilation-mipas-limb-radiances-ecmwf-system-part-ii-experiments-2-dimensional-observation.pdf

Background error statistics for aerosols

Author

Angela Benedetti

Mike Fisher

2006, Technical memorandum, ECMWF Technical Memoranda

File

8059-background-error-statistics-aerosols.pdf

Benefits of increased resolution in the ECMWF ensemble system and comparison with poor-man's ensembles

Author

Roberto Buizza

David Richardson

T.N. Palmer

2002, Technical memorandum, ECMWF Technical Memoranda

File

8467-benefits-increased-resolution-ecmwf-ensemble-system-and-comparison-poor-mans-ensembles.pdf

Boreal-Forest Surface parameterization in the ECMWFModel - 1D Test with NOPEX Long-Term Data

Author

D. Gustafsson

E. Lewan

B.J.J. van den Hurk

P. Viterbo

A. Grelle

A. Lindroth

E. Cienciala

M. Mölder

S Halldin

L-C. Lundin

2002, Technical memorandum, ECMWF Technical Memoranda

File

9687-boreal-forest-surface-parameterization-ecmwfmodel-1d-test-nopex-long-term-data.pdf

Clear-sky window channel radiances: a comparison between observations and the ECMWF model

Author

I.F. Trigo

P. Viterbo

2002, Technical memorandum, ECMWF Technical Memoranda

File

12831-clear-sky-window-channel-radiances-comparison-between-observations-and-ecmwf-model.pdf

Climate diagnostics of the ECMWF AMIP-2 simulations

Author

C. Brankovic

M.J. Miller

A. Untch

Nils Wedi

2002, Technical memorandum, ECMWF Technical Memoranda

File

8361-climate-diagnostics-ecmwf-amip-2-simulations.pdf

Comparison of TMI rainfall estimates and their impact on 4D-Var assimilation

Author

V. Marécal

J.-F. Mahfouf

Peter Bauer

2002, Technical memorandum, ECMWF Technical Memoranda

File

11001-comparison-tmi-rainfall-estimates-and-their-impact-4d-var-assimilation.pdf

Early detection of abnormal weather using a probabilistic Extreme Forecast Index

Author

F. Lalaurette

2002, Technical memorandum, ECMWF Technical Memoranda

File

10629-early-detection-abnormal-weather-using-probabilistic-extreme-forecast-index.pdf

Effects of observations errors on the statistics for ensemble spread and reliability

Author

Ø. Saetra

Jean-Raymond Bidlot

Hans Hersbach

David Richardson

2002, Technical memorandum, ECMWF Technical Memoranda

File

12061-effects-observations-errors-statistics-ensemble-spread-and-reliability.pdf

Error analysis of TMI rainfall estimates over ocean for variational data assimilation

Author

Peter Bauer

J.-F. Mahfouf

W.S. Olson

F.S Marzano

S. Di Michele

A. Tassa

A. Mugnai

2002, Technical memorandum, ECMWF Technical Memoranda

File

7983-error-analysis-tmi-rainfall-estimates-over-ocean-variational-data-assimilation.pdf

Evaluation of the diurnal cycle of precipitation, surface thermodynamics and surface fluxes in the ECMWF model using LBA data

Author

A. Betts

C. Jakob

2002, Technical memorandum, ECMWF Technical Memoranda

File

8199-evaluation-diurnal-cycle-precipitation-surface-thermodynamics-and-surface-fluxes-ecmwf-model.pdf

Experiments on 4D-Var assimilation of rainfall data using an incremental formulation

Author

V. Marécal

J.-F. Mahfouf

2002, Technical memorandum, ECMWF Technical Memoranda

File

10999-experiments-4d-var-assimilation-rainfall-data-using-incremental-formulation.pdf

Impact of Leaf Area Index seasonality on the annual land surface evaporation in a global circulation model

Author

B.J.J. van den Hurk

P. Viterbo

S.O. Los

2002, Technical memorandum, ECMWF Technical Memoranda

File

13263-impact-leaf-area-index-seasonality-annual-land-surface-evaporation-global-circulation-model.pdf

Implementation of 1D+4D-Var assimilation of precipitation affected microwave radiances at ECMWF, Part I: 1D-Var.

Author

Peter Bauer

Philippe Lopez

Angela Benedetti

Deborah Salmond

E. Moreau

2006, Technical memorandum, ECMWF Technical Memoranda

File

7995-implementation-1d4d-var-assimilation-precipitation-affected-microwave-radiances-ecmwf-part-i-1d.pdf

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