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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

Preliminary assessment of a 50-day run with the ECMWF operational forecast model

Author

K Arpe

1980, Technical memorandum, ECMWF Technical Memoranda

File

7811-preliminary-assessment-50-day-run-ecmwf-operational-forecast-model.pdf

Two case comparisons between vertical motions obtained from the quasi-geostrophic omega-equation and those in the ECMWF analysis system

Author

G.J. Cats

M.S. Tracton

1980, Technical memorandum, ECMWF Technical Memoranda

File

8614-two-case-comparisons-between-vertical-motions-obtained-quasi-geostrophic-omega-equation-and.pdf

Modifications to the operational analysis suite

Author

P. Lönnberg

1980, Technical memorandum, ECMWF Technical Memoranda

File

10874-modifications-operational-analysis-suite.pdf

Packing and truncation errors in fields retrieved from spherical harmonic coefficients

Author

J. Haseler

1980, Technical memorandum, ECMWF Technical Memoranda

File

9788-packing-and-truncation-errors-fields-retrieved-spherical-harmonic-coefficients.pdf

On the effect of easterly shear on the atmospheric waves in the equatorial zone

Author

X-Y. Du

Z-D. Zhou

1980, Technical memorandum, ECMWF Technical Memoranda

File

9150-effect-easterly-shear-atmospheric-waves-equatorial-zone.pdf

Programming systems, documentation, Olympus, Doctor

Author

J. Gibson

1980, Technical memorandum, ECMWF Technical Memoranda

File

9558-programming-systems-documentation-olympus-doctor.pdf

Some remarks on the effects of the Qinghai-Tibet Plateau on weather developments

Author

X-Y. Du

1980, Technical memorandum, ECMWF Technical Memoranda

File

9148-some-remarks-effects-qinghai-tibet-plateau-weather-developments.pdf

On some predictability problems

Author

C. Girard

M. Jarraud

1980, Technical memorandum, ECMWF Technical Memoranda

File

9603-some-predictability-problems.pdf

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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

Preliminary assessment of a 50-day run with the ECMWF operational forecast model

Two case comparisons between vertical motions obtained from the quasi-geostrophic omega-equation and those in the ECMWF analysis system

Modifications to the operational analysis suite

Packing and truncation errors in fields retrieved from spherical harmonic coefficients

On the effect of easterly shear on the atmospheric waves in the equatorial zone

Programming systems, documentation, Olympus, Doctor

Some remarks on the effects of the Qinghai-Tibet Plateau on weather developments

On some predictability problems

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