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Direct 4D-Var assimilation of all-sky radiances. Part II: Assessment

Author

Alan Geer

Peter Bauer

Philippe Lopez

2010, Technical memorandum, ECMWF Technical Memoranda

File

9512-direct-4d-var-assimilation-all-sky-radiances-part-ii-assessment.pdf

Enhanced use of all-sky microwave observations sensitive to water vapour, cloud and precipitation

Author

Alan Geer

Peter Bauer

2010, Technical memorandum, ECMWF Technical Memoranda

File

9518-enhanced-use-all-sky-microwave-observations-sensitive-water-vapour-cloud-and-precipitation.pdf

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

Forecasts and assimilation experiments of the Antarctic Ozone Hole 2008

Author

Johannes Flemming

Antje Inness

Luke Jones

H. Eskes

V. Huijnen

D. Kinnison

M.G. Schultz

O. Stein

D. Cariolle

G.P. Brasseur

2010, Technical memorandum, ECMWF Technical Memoranda

File

9428-forecasts-and-assimilation-experiments-antarctic-ozone-hole-2008.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

Jason-2 OGDR Wind and wave products: random error estimation

Author

Saleh Abdalla

Peter Janssen

Jean-Raymond Bidlot

2010, Technical memorandum, ECMWF Technical Memoranda

File

7628-jason-2-ogdr-wind-and-wave-products-random-error-estimation.pdf

Direct 4D-Var assimilation of all-sky radiances. Part I: Implementation

Author

Peter Bauer

Alan Geer

Philippe Lopez

Deborah Salmond

2010, Technical memorandum, ECMWF Technical Memoranda

File

7987-direct-4d-var-assimilation-all-sky-radiances-part-i-implementation.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

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

Estimating background-error variances with the ECMWF Ensemble of Data Assimilations system: the effect of ensemble size and day-to-day variability

Author

Massimo Bonavita

L. Raynaud

L. Isaksen

2010, Technical memorandum, ECMWF Technical Memoranda

File

8268-estimating-background-error-variances-ecmwf-ensemble-data-assimilations-system-effect-ensemble.pdf

RTMIPAS: A fast radiative transfer model for the assimilation of infrared limb radiances from MIPAS.

Author

Niels Bormann

Marco Matricardi

Sean Healy

2004, Technical memorandum, ECMWF Technical Memoranda

File

8309-rtmipas-fast-radiative-transfer-model-assimilation-infrared-limb-radiances-mipas.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

Resolution dependence of orographic torques

Author

A.R. Brown

2004, Technical memorandum, ECMWF Technical Memoranda

File

8400-resolution-dependence-orographic-torques.pdf

Impact of truncation on variable resolution forecasts

Author

Roberto Buizza

2010, Technical memorandum, ECMWF Technical Memoranda

File

8431-impact-truncation-variable-resolution-forecasts.pdf

Horizontal resolution impact on short- and long-range forecast error

Author

Roberto Buizza

2010, Technical memorandum, ECMWF Technical Memoranda

File

8432-horizontal-resolution-impact-short-and-long-range-forecast-error.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

Report from the IFS scalability project

Author

M. Hamrud

2010, Technical memorandum, ECMWF Technical Memoranda

File

9767-report-ifs-scalability-project.pdf

Early-delivery suite.

Author

J. Haseler

2004, Technical memorandum, ECMWF Technical Memoranda

File

9793-early-delivery-suite.pdf

Assessment of the real-time fire emissions (GFASv0) by MACC

Author

A. Heil

J. Kaiser

G.R. van der Werf

M.J. Wooster

M.G. Schultz

H.D. van der Gon

2010, Technical memorandum, ECMWF Technical Memoranda

File

9842-assessment-real-time-fire-emissions-gfasv0-macc.pdf

Assimilation of scatterometer data as equivalent-neutral wind

Author

Hans Hersbach

2010, Technical memorandum, ECMWF Technical Memoranda

File

9874-assimilation-scatterometer-data-equivalent-neutral-wind.pdf

Sea-surface roughness and drag coefficient as function of neutral wind speed

Author

Hans Hersbach

2010, Technical memorandum, ECMWF Technical Memoranda

File

9875-sea-surface-roughness-and-drag-coefficient-function-neutral-wind-speed.pdf

Ensemble of data assimilations at ECMWF

Author

L. Isaksen

Massimo Bonavita

Roberto Buizza

Mike Fisher

J. Haseler

Martin Leutbecher

Laure Raynaud

2010, Technical memorandum, ECMWF Technical Memoranda

File

10125-ensemble-data-assimilations-ecmwf.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

Forecast quality assessment of the ENSEMBLES seasonal-to-decadal Stream 2 hindcasts

Author

F. Doblas-Reyes

Antje Weisheimer

T.N. Palmer

J. Murphy

D.M. Smith

2010, Technical memorandum, ECMWF Technical Memoranda

File

9071-forecast-quality-assessment-ensembles-seasonal-decadal-stream-2-hindcasts.pdf

Search ECMWF publications

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Direct 4D-Var assimilation of all-sky radiances. Part II: Assessment

Enhanced use of all-sky microwave observations sensitive to water vapour, cloud and precipitation

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

Forecasts and assimilation experiments of the Antarctic Ozone Hole 2008

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

Jason-2 OGDR Wind and wave products: random error estimation

Direct 4D-Var assimilation of all-sky radiances. Part I: Implementation

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

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

Estimating background-error variances with the ECMWF Ensemble of Data Assimilations system: the effect of ensemble size and day-to-day variability

RTMIPAS: A fast radiative transfer model for the assimilation of infrared limb radiances from MIPAS.

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

Resolution dependence of orographic torques

Impact of truncation on variable resolution forecasts

Horizontal resolution impact on short- and long-range forecast error

Influence matrix diagnostic of a data assimilation system.

Report from the IFS scalability project

Early-delivery suite.

Assessment of the real-time fire emissions (GFASv0) by MACC

Assimilation of scatterometer data as equivalent-neutral wind

Sea-surface roughness and drag coefficient as function of neutral wind speed

Ensemble of data assimilations at ECMWF

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

Forecast quality assessment of the ENSEMBLES seasonal-to-decadal Stream 2 hindcasts

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