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The parametrization of surface fluxes in large scale models under free convection

Author

Anton Beljaars

1995, Technical memorandum, ECMWF Technical Memoranda

File

8037-parametrization-surface-fluxes-large-scale-models-under-free-convection.pdf

The sensitivity of winter evaporation to the formulation of aerodynamic resistance in theECMWF model

Author

Anton Beljaars

P. Viterbo

1995, Technical memorandum, ECMWF Technical Memoranda

File

8041-sensitivity-winter-evaporation-formulation-aerodynamic-resistance-theecmwf-model.pdf

A spurious mode in the 'Lorenz' arrangement of Y and T which does not exist in the 'Charney-Phillips' arrangement

Author

A. Hollingsworth

1995, Technical memorandum, ECMWF Technical Memoranda

File

9943-spurious-mode-lorenz-arrangement-y-and-t-which-does-not-exist-charney-phillips-arrangement.pdf

The singular-vector structure of the atmospheric general circulation

Author

Roberto Buizza

T.N. Palmer

1995, Technical memorandum, ECMWF Technical Memoranda

File

8460-singular-vector-structure-atmospheric-general-circulation.pdf

Quasi-continuous variational data assimilation

Author

H Järvinen

Jean-Noël Thépaut

P. Courtier

1995, Technical memorandum, ECMWF Technical Memoranda

File

10351-quasi-continuous-variational-data-assimilation.pdf

Use of conventional surface observations in three-dimensional variational assimilation

Author

Carla Cardinali

Erik Andersson

P. Viterbo

Jean-Noël Thépaut

Drasko Vasiljevic

1994, Technical memorandum, ECMWF Technical Memoranda

File

8577-use-conventional-surface-observations-three-dimensional-variational-assimilation.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

Sensitivity of two-day forecast errors over the Northern Hemisphere to initial conditions

Author

Florence Rabier

E. Klinker

P. Courtier

A. Hollingsworth

1994, Technical memorandum, ECMWF Technical Memoranda

File

11795-sensitivity-two-day-forecast-errors-over-northern-hemisphere-initial-conditions.pdf

Linearity of optimal perturbation time evolution and sensitivity of ensemble forecasts toperturbation amplitude

Author

Roberto Buizza

1994, Technical memorandum, ECMWF Technical Memoranda

File

8414-linearity-optimal-perturbation-time-evolution-and-sensitivity-ensemble-forecasts-toperturbation.pdf

Recent studies of semi-Lagrangian advection at ECMWF

Author

M. Hortal

1994, Technical memorandum, ECMWF Technical Memoranda

File

10016-recent-studies-semi-lagrangian-advection-ecmwf.pdf

The ECMWF Ensemble Prediction System - methodology and validation

Author

Franco Molteni

Roberto Buizza

T.N. Palmer

T. Petroliagis

1994, Technical memorandum, ECMWF Technical Memoranda

File

11189-ecmwf-ensemble-prediction-system-methodology-and-validation.pdf

Extended versions of the convective parametrization scheme at ECMWF and their impact on the mean and transient activity of the model in the tropics

Author

T-E. Nordeng

1994, Technical memorandum, ECMWF Technical Memoranda

File

11393-extended-versions-convective-parametrization-scheme-ecmwf-and-their-impact-mean-and-transient.pdf

Error growth and predictability estimates for the ECMWF forecasting system

Author

Adrian Simmons

R. Mureau

T. Petroliagis

1994, Technical memorandum, ECMWF Technical Memoranda

File

12280-error-growth-and-predictability-estimates-ecmwf-forecasting-system.pdf

Assimilation of radio occultation measurements into a Numerical Weather Predictionsystem

Author

J. Eyre

1994, Technical memorandum, ECMWF Technical Memoranda

File

9331-assimilation-radio-occultation-measurements-numerical-weather-predictionsystem.pdf

Recommendations on the verification of local weather forecasts

Author

P. Nurmi

1994, Technical memorandum, ECMWF Technical Memoranda

File

11400-recommendations-verification-local-weather-forecasts.pdf

Accuracy of the ERS-1 altimeter-derived Fast Delivery Products for wave dataassimilation

Author

A. Guillaume

1994, Technical memorandum, ECMWF Technical Memoranda

File

9678-accuracy-ers-1-altimeter-derived-fast-delivery-products-wave-dataassimilation.pdf

Sensitivity of forecast error to initial conditions using the adjoint method

Author

Florence Rabier

P. Courtier

M. Herveou

B. Strauss

A Persson

1993, Technical memorandum, ECMWF Technical Memoranda

File

11789-sensitivity-forecast-error-initial-conditions-using-adjoint-method.pdf

Computation of optimal perturbations using a local projection operator: A winter casestudy

Author

Roberto Buizza

1993, Technical memorandum, ECMWF Technical Memoranda

File

8413-computation-optimal-perturbations-using-local-projection-operator-winter-casestudy.pdf

Evaluation of forecast error covariance matrix

Author

Florence Rabier

A. McNally

1993, Technical memorandum, ECMWF Technical Memoranda

File

11801-evaluation-forecast-error-covariance-matrix.pdf

Variational assimilation at ECMWF

Author

P. Courtier

Erik Andersson

W.A. Heckley

G.A. Kelly

J. Pailleux

Florence Rabier

Jean-Noël Thépaut

P. Undén

Drasko Vasiljevic

Carla Cardinali

J. Eyre

M. Hamrud

J. Haseler

A. Hollingsworth

A. McNally

A. Stoffelen

1993, Technical memorandum, ECMWF Technical Memoranda

File

8786-variational-assimilation-ecmwf.pdf

Synoptic cloudiness validation in the ECMWF model

Author

N.G. Kvamstø

1993, Technical memorandum, ECMWF Technical Memoranda

File

10579-synoptic-cloudiness-validation-ecmwf-model.pdf

Impact of a simple vertical diffusion scheme and of the optimisation time interval onoptimal unstable structures

Author

Roberto Buizza

1993, Technical memorandum, ECMWF Technical Memoranda

File

8412-impact-simple-vertical-diffusion-scheme-and-optimisation-time-interval-onoptimal-unstable.pdf

Unstable perturbations computed using the adjoint technique

Author

Roberto Buizza

1992, Technical memorandum, ECMWF Technical Memoranda

File

8411-unstable-perturbations-computed-using-adjoint-technique.pdf

A bias correction scheme for simulated TOVS brightness temperatures

Author

J. Eyre

1992, Technical memorandum, ECMWF Technical Memoranda

File

9330-bias-correction-scheme-simulated-tovs-brightness-temperatures.pdf

Search ECMWF publications

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The parametrization of surface fluxes in large scale models under free convection

The sensitivity of winter evaporation to the formulation of aerodynamic resistance in theECMWF model

A spurious mode in the 'Lorenz' arrangement of Y and T which does not exist in the 'Charney-Phillips' arrangement

The singular-vector structure of the atmospheric general circulation

Quasi-continuous variational data assimilation

Use of conventional surface observations in three-dimensional variational assimilation

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

Sensitivity of two-day forecast errors over the Northern Hemisphere to initial conditions

Linearity of optimal perturbation time evolution and sensitivity of ensemble forecasts toperturbation amplitude

Recent studies of semi-Lagrangian advection at ECMWF

The ECMWF Ensemble Prediction System - methodology and validation

Extended versions of the convective parametrization scheme at ECMWF and their impact on the mean and transient activity of the model in the tropics

Error growth and predictability estimates for the ECMWF forecasting system

Assimilation of radio occultation measurements into a Numerical Weather Predictionsystem

Recommendations on the verification of local weather forecasts

Accuracy of the ERS-1 altimeter-derived Fast Delivery Products for wave dataassimilation

Sensitivity of forecast error to initial conditions using the adjoint method

Computation of optimal perturbations using a local projection operator: A winter casestudy

Evaluation of forecast error covariance matrix

Variational assimilation at ECMWF

Synoptic cloudiness validation in the ECMWF model

Impact of a simple vertical diffusion scheme and of the optimisation time interval onoptimal unstable structures

Unstable perturbations computed using the adjoint technique

A bias correction scheme for simulated TOVS brightness temperatures

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