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Showing 1 - 24 of 133 results

Introduction and Working Group Reports

Author

Various Authors

1986, Conference Paper, Workshop on Predictability in the Medium and Extended Range, 17-19 March 1986

File

7495-introduction-and-working-group-reports.pdf

Systematic errors in surface and upper lows in the ECMWF operational spectral model(T106) during winter 1985/86, compared with corresponding errors in the T63 model

Author

V. Akyildiz

1986, Technical memorandum, ECMWF Technical Memoranda

File

7661-systematic-errors-surface-and-upper-lows-ecmwf-operational-spectral-modelt106-during-winter.pdf

Westerly wind events and the 1997 El NIno event in the ECMWF seasonal forecasting system: a case study

Author

Magdalena Alonso-Balmaseda

Frédéric Vitart

D. Anderson

2002, Technical memorandum, ECMWF Technical Memoranda

File

7687-westerly-wind-events-and-1997-el-nino-event-ecmwf-seasonal-forecasting-system-case-study.pdf

Sensitivity of dynamical seasonal forecasts to ocean initial conditions

Author

O. Alves

Magdalena Alonso-Balmaseda

D. Anderson

2002, Technical memorandum, ECMWF Technical Memoranda

File

7693-sensitivity-dynamical-seasonal-forecasts-ocean-initial-conditions.pdf

Assessment of European wind profiler data, in an NWP context

Author

Anotonio Garcia-Mendez

2002, Technical memorandum, ECMWF Technical Memoranda

File

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

Newsletter No. 94 - Summer 2002

Author

P. White

ECMWF

2002, Newsletter, ECMWF Newsletter

File

14630-newsletter-no94-summer-2002.pdf

Newsletter No. 93 - Spring 2002

Author

P. White

ECMWF

2002, Newsletter, ECMWF Newsletter

File

14631-newsletter-no93-spring-2002.pdf

Review of the representation of mountains in numerical weather prediction models

Author

F. Mesinger

W.G. Collins

1986, Conference Paper, Seminar/Workshop on Observation, Theory and Modelling of Orographic effects. Seminar: 15-19 September 1986, Workshop: 19-20 September 1986

File

75654-review-representation-mountains-numerical-weather-prediction-models.pdf

Numerical techniques for the representation of mountains

Author

F. Mesinger

Z.I. Janjic

1986, Conference Paper, Seminar/Workshop on Observation, Theory and Modelling of Orographic effects. Seminar: 15-19 September 1986, Workshop: 19-20 September 1986

File

75655-numerical-techniques-representation-mountains.pdf

Orographic gravity-wave drag: its parametrization and influence in general circulation and numerical weather prediction models

Author

M.J. Miller

T.N. Palmer

1986, Conference Paper, Seminar/Workshop on Observation, Theory and Modelling of Orographic effects. Seminar: 15-19 September 1986, Workshop: 19-20 September 1986

File

75690-orographic-gravity-wave-drag-its-parametrization-and-influence-general-circulation-and.pdf

Experimental 30-day forecasting at GFDL

Author

K. Miyakoda

J. Sirutis

T. Knutson

1986, Conference Paper, Workshop on Predictability in the Medium and Extended Range, 17-19 March 1986

File

75703-experimental-30-day-forecasting-gfdl.pdf

30- and 60-day forecast experiments with the ECMWF spectral models

Author

Franco Molteni

U. Cubasch

S. Tibaldi

1986, Conference Paper, Workshop on Predictability in the Medium and Extended Range, 17-19 March 1986

File

75730-30-and-60-day-forecast-experiments-ecmwf-spectral-models.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

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

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

Author

V. Marécal

J.-F. Mahfouf

2002, Technical memorandum, ECMWF Technical Memoranda

File

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

On the parametrization of orographic drag

Author

P. Mason

1986, Conference Paper, Seminar/Workshop on Observation, Theory and Modelling of Orographic effects. Seminar: 15-19 September 1986, Workshop: 19-20 September 1986

File

75589-parametrization-orographic-drag.pdf

Microwave radiative transfer modeling in clouds and precipitation Part I: Model description

Author

2002, Report

File

7972-microwave-radiative-transfer-modeling-clouds-and-precipitation-part-i-model-description.pdf

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

Author

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

Study of diurnal cycle of convective precipitation over Amazonia using a single column model

Author

A. Betts

C. Jakob

2002, Technical memorandum, ECMWF Technical Memoranda

File

8200-study-diurnal-cycle-convective-precipitation-over-amazonia-using-single-column-model.pdf

The spatial structure of observation errors in Atmospheric Motion Vectors from geostationary satellite data

Author

S. Saarinen

G.A. Kelly

Jean-Noël Thépaut

2002, Report, EUMETSAT/ECMWF Fellowship Programme Research Reports, EUMETSAT/ECMWF Fellowship Programme

File

8296-spatial-structure-observation-errors-atmospheric-motion-vectors-geostationary-satellite-data.pdf

Impact of solar stray-light effects on Atmospheric Motion Vectors from METEOSAT

Author

Jean-Noël Thépaut

G.A. Kelly

2002, Report, EUMETSAT/ECMWF Fellowship Programme Research Reports, EUMETSAT/ECMWF Fellowship Programme

File

8297-impact-solar-stray-light-effects-atmospheric-motion-vectors-meteosat.pdf

First report on comparisons between bulletins transmitted on the GTS and those received at ECMWF (period 1 to 5 October 1984

Author

M.J. Boyd

M.R. Dutton

J. Gibson

1986, Technical memorandum, ECMWF Technical Memoranda

File

8353-first-report-comparisons-between-bulletins-transmitted-gts-and-those-received-ecmwf-period-1-5.pdf

Final report on comparisons between bulletins transmitted on the GTS and those received at ECMWF (period 1 to 5 October 1984)

Author

M.J. Boyd

M.R. Dutton

J. Gibson

1986, Technical memorandum, ECMWF Technical Memoranda

File

8354-final-report-comparisons-between-bulletins-transmitted-gts-and-those-received-ecmwf-period-1-5.pdf