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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

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

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

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

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

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

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

Surface fluxes from short range forecasts

Author

K Arpe

D.M. Burridge

1990, Technical memorandum, ECMWF Technical Memoranda

File

7830-surface-fluxes-short-range-forecasts.pdf

Momentum budgets

Author

E. Klinker

1990, Technical memorandum, ECMWF Technical Memoranda

File

10494-momentum-budgets.pdf

Report on the pilot study to establish the value of information exchange between ECMWF and national focal points for radiosonde systems

Author

B. Strauss

1990, Technical memorandum, ECMWF Technical Memoranda

File

12460-report-pilot-study-establish-value-information-exchange-between-ecmwf-and-national-focal.pdf

Rationale for a new physically-based parametrization of subgrid-scale orographic effects

Author

P.G. Baines

T.N. Palmer

1990, Technical memorandum, ECMWF Technical Memoranda

File

7875-rationale-new-physically-based-parametrization-subgrid-scale-orographic-effects.pdf

The sensitivity of the ECMWF model to the parametrization of evaporation from the tropical oceans

Author

Anton Beljaars

M.J. Miller

1990, Technical memorandum, ECMWF Technical Memoranda

File

8040-sensitivity-ecmwf-model-parametrization-evaporation-tropical-oceans.pdf

Use of reduced Gaussian grids in spectral models

Author

M. Hortal

Adrian Simmons

1990, Technical memorandum, ECMWF Technical Memoranda

File

10025-use-reduced-gaussian-grids-spectral-models.pdf

The impact of North Atlantic tempship radiosonde data on the ECMWF analysis and forecast

Author

J. Pailleux

1990, Technical memorandum, ECMWF Technical Memoranda

File

11469-impact-north-atlantic-tempship-radiosonde-data-ecmwf-analysis-and-forecast.pdf

The decrease of the systematic error and the increased predictability of the long waves in the ECMWF model

Author

R. Mureau

1990, Technical memorandum, ECMWF Technical Memoranda

File

11322-decrease-systematic-error-and-increased-predictability-long-waves-ecmwf-model.pdf

Report on meeting on ECMWF Wide Area Network security, 1 December 1989

Author

P. Prior

1990, Technical memorandum, ECMWF Technical Memoranda

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Use of conventional surface observations in three-dimensional variational assimilation

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

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

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

Error growth and predictability estimates for the ECMWF forecasting system

Recommendations on the verification of local weather forecasts

Assimilation of radio occultation measurements into a Numerical Weather Predictionsystem

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

Surface fluxes from short range forecasts

Momentum budgets

Report on the pilot study to establish the value of information exchange between ECMWF and national focal points for radiosonde systems

Rationale for a new physically-based parametrization of subgrid-scale orographic effects

The sensitivity of the ECMWF model to the parametrization of evaporation from the tropical oceans

Use of reduced Gaussian grids in spectral models

The impact of North Atlantic tempship radiosonde data on the ECMWF analysis and forecast

The decrease of the systematic error and the increased predictability of the long waves in the ECMWF model

Report on meeting on ECMWF Wide Area Network security, 1 December 1989

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