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

Author

2010, Technical memorandum, ECMWF Technical Memoranda

File

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

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

Author

Philippe Lopez

Deborah Salmond

2010, Technical memorandum, ECMWF Technical Memoranda

File

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

Quality assessment of cloud screening, cloud analysis and cloud height assignment for atmospheric motion vectors

Author

S. Di Michele

2010, Report, WP-2300 Report for ESA contract 1-5576/07/NL/CB: Project QuARL - Quantitative Assessment of the Operational Value of Space-Borne Radar and Lidar Measurements of Cloud and Aerosol Profiles, ESA Contract Report

File

9038-quality-assessment-cloud-screening-cloud-analysis-and-cloud-height-assignment-atmospheric.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

The ECMWF model climate: Recent progress through improved physical parametrizations

Author

T. Jung

Anton Beljaars

M. Köhler

M.J. Miller

J.-J. Morcrette

A. Orr

A.M. Tompkins

2010, Technical memorandum, ECMWF Technical Memoranda

File

10317-ecmwf-model-climate-recent-progress-through-improved-physical-parametrizations.pdf

A principal component based version of the RTTOV fast radiative transfer model.

Author

Marco Matricardi

2010, Technical memorandum, ECMWF Technical Memoranda

File

11026-principal-component-based-version-rttov-fast-radiative-transfer-model.pdf

Improved middle atmosphere climate and forecasts in the ECMWF model through a non-orographic gravity wave drag parametrization

Author

A. Orr

J. Scinocca

M. Ern

Marta Janiskova

2010, Technical memorandum, ECMWF Technical Memoranda

File

11450-improved-middle-atmosphere-climate-and-forecasts-ecmwf-model-through-non-orographic-gravity.pdf

Sensitivity of L-Band NWP forward modelling to soil roughness

Author

J.M. Sabater

Patricia de Rosnay

Gianpaolo Balsamo

2010, Technical memorandum, ECMWF Technical Memoranda

File

13284-sensitivity-l-band-nwp-forward-modelling-soil-roughness.pdf

Development of strategies for radar and lidar data assimilation

Author

Marta Janiskova

O. Stiller

2010, Report, WP-3100 Report for ESA contract 1-5576/07/NL/CB: Project QuARL - Quantitative Assessment of the Operational Value of Space-Borne Radar and Lidar Measurements of Cloud and Aerosol Profiles, ESA Contract Report

File

10162-development-strategies-radar-and-lidar-data-assimilation.pdf

Implementation of an ocean mixed layer model in IFS

Author

Y Takaya

Frédéric Vitart

Gianpaolo Balsamo

Magdalena Alonso-Balmaseda

Martin Leutbecher

Franco Molteni

2010, Technical memorandum, ECMWF Technical Memoranda

File

12540-implementation-ocean-mixed-layer-model-ifs.pdf

Report from the IFS scalability project

Author

M. Hamrud

2010, Technical memorandum, ECMWF Technical Memoranda

File

9767-report-ifs-scalability-project.pdf

A new equitable score suitable for verifying precipitation in NWP

Author

David Richardson

2010, Technical memorandum, ECMWF Technical Memoranda

File

11988-new-equitable-score-suitable-verifying-precipitation-nwp.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

Impact of truncation on variable resolution forecasts

Author

Roberto Buizza

2010, Technical memorandum, ECMWF Technical Memoranda

File

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

Monitoring and assimilation of SCIAMACHY, GOMOS and MIPAS retrievals at ECMWF. Annual Report for ESA contract 21519/08/I-OL: Technical support for global validation of ENVISAT data products.

Author

Rossana Dragani

2010, Report, Annual Report for ESA contract 21519/08/I-OL, ESA Contract Report

File

9117-monitoring-and-assimilation-sciamachy-gomos-and-mipas-retrievals-ecmwf-annual-report-esa.pdf

An ensemble three-dimensional variational data assimilation system for the global ocean: sensitivity to the observation- and background-error variance formulation.

Author

N. Daget

A.T. Weaver

Magdalena Alonso-Balmaseda

2008, Technical memorandum, ECMWF Technical Memoranda

File

74111-ensemble-three-dimensional-variational-data-assimilation-system-global-ocean-sensitivity.pdf

Newsletter No. 117 - Autumn 2008

Author

Bob Riddaway

ECMWF

2008, Newsletter, ECMWF Newsletter

File

14608-newsletter-no117-autumn-2008.pdf

Newsletter No. 116 - Summer 2008

Author

Bob Riddaway

ECMWF

2008, Newsletter, ECMWF Newsletter

File

14609-newsletter-no116-summer-2008.pdf

Newsletter No. 115 - Spring 2008

Author

Bob Riddaway

ECMWF

2008, Newsletter, ECMWF Newsletter

File

14610-newsletter-no115-spring-2008.pdf

Newsletter No. 114 - Winter 2007/08

Author

Bob Riddaway

ECMWF

2008, Newsletter, ECMWF Newsletter

File

14611-newsletter-no114-winter-200708.pdf

Atmospheric motion vectors: past, present and future.

Author

M. Forsythe

2008, Conference Paper, Seminar on Recent developments in the use of satellite observations in numerical weather prediction, 3-7 September 2007

File

74512-atmospheric-motion-vectors-past-present-and-future.pdf

An update on CMCM ensemble forecast system for the medium range

Author

N. Gagnon

2008, Conference Paper, 11th Workshop on meteorological operational systems, 12 to 16 November 2007.

File

74538-update-cmcm-ensemble-forecast-system-medium-range.pdf

Poster presentations; List of Participants; Programme

Author

Various Authors

2008, Conference Proceedings, ECMWF GRAS SAF Workshop on Applications of GPS Radio Occultation Measurements, 16 - 18 June 2008

File

7454-poster-presentations-list-participants-programme.pdf