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Implicit and explicit cross-correlations in coupled data assimilation

Author

Patrick Laloyaux

S. Frolov

B. Ménétrier

Massimo Bonavita

2018, Technical memorandum, ECMWF Technical Memoranda

File

18552-implicit-and-explicit-cross-correlations-coupled-data-assimilation.pdf

Report on Stratosphere Task Force

Author

T.G. Shepherd

I. Polichtchouk

Robin Hogan

A.J. Simmons

2018, Technical memorandum, ECMWF Technical Memoranda

File

18259-report-stratosphere-task-force.pdf

Forecasting tropical cyclone landfall using ECMWF's seasonal forecasts from System 4

Author

D.L. Bergman

L. Magnusson

J. Nilsson

Frédéric Vitart

2017, Technical memorandum, ECMWF Technical Memoranda

File

17679-forecasting-tropical-cyclone-landfall-using-ecmwfs-seasonal-forecasts-system4.pdf

Evidence of a stratospheric methane bias in the IFS against MIPAS data

Author

Sebastien Massart

Anna Agusti-Panareda

Johannes Flemming

2017, Technical memorandum, ECMWF Technical Memoranda

File

17698-evidence-stratospheric-methane-bias-ifs-against-mipas-data.pdf

Assimilating observations sensitive to cloud and precipitation

Author

Maike Ahlgrimm

Stephen English

Mark Fielding

Elias Hólm

Philippe Lopez

Marco Matricardi

Irina Sandu

P. Weston

2017, Technical memorandum, ECMWF Technical Memoranda

File

17718-assimilating-observations-sensitive-cloud-and-precipitation.pdf

Radiation in numerical weather prediction

Author

Robin Hogan

Maike Ahlgrimm

Gianpaolo Balsamo

Anton Beljaars

P. Berrisford

Alessio Bozzo

Francesca Di Giuseppe

R.M. Forbes

Thomas Haiden

Simon Lang

Michael Mayer

I. Polichtchouk

Irina Sandu

Frédéric Vitart

Nils Wedi

2017, Technical memorandum, ECMWF Technical Memoranda

File

17771-radiation-numerical-weather-prediction.pdf

A generic ensemble generation scheme for data assimilation and ocean analysis

Author

Hao Zuo

Magdalena Alonso-Balmaseda

Eric de Boisseson

S. Hirahara

Marcin Chrust

Patricia de Rosnay

2017, Technical memorandum, ECMWF Technical Memoranda

File

17831-generic-ensemble-generation-scheme-data-assimilation-and-ocean-analysis.pdf

Tropical Cyclone Sensitivity to Ocean Coupling

Author

K.S. Mogensen

L. Magnusson

Jean-Raymond Bidlot

2017, Technical memorandum, ECMWF Technical Memoranda

File

16980-tropical-cyclone-sensitivity-ocean-coupling.pdf

A Strategy for Data Assimilation

Author

Massimo Bonavita

Y. Trémolet

Elias Hólm

S. Lang

Marcin Chrust

Marta Janiskova

Philippe Lopez

Patrick Laloyaux

Patricia de Rosnay

Mike Fisher

M. Hamrud

Stephen English

2017, Technical memorandum, ECMWF Technical Memoranda

File

17179-strategy-data-assimilation.pdf

Evaluation of ECMWF forecasts, including 2016-2017 upgrades

Author

Thomas Haiden

F. Prates

2017, Technical memorandum, ECMWF Technical Memoranda

File

17913-evaluation-ecmwf-forecasts-includuing-2016-2017-upgrades.pdf

A positive definite tracer mass fixer for high resolution weather and atmospheric composition forecasts

Author

Michail Diamantakis

Anna Agusti-Panareda

2017, Technical memorandum, ECMWF Technical Memoranda

File

17914-positive-definite-tracer-mass-fixer-high-resolution-weather-and-atmospheric-composition.pdf

Comparing Arctic winter sea-ice thickness from SMOS and ORAS5

Author

Steffen Tietsche

Magdalena Alonso-Balmaseda

Hao Zuo

Patricia de Rosnay

2017, Technical memorandum, ECMWF Technical Memoranda

File

17275-comparing-arctic-winter-sea-ice-thickness-smos-and-oras5.pdf

An OpenACC GPU adaptation of the IFS cloud microphysics scheme

Author

H. Xiao

Michail Diamantakis

S. Saarinen

2017, Technical memorandum, ECMWF Technical Memoranda

File

17320-openacc-gpu-adaptation-ifs-cloud-microphysics-scheme.pdf

Advancing land surface model development with satellite-based Earth observations

Author

R. Orth

Emanuel Dutra

I.F. Trigo

Gianpaolo Balsamo

2017, Technical memorandum, ECMWF Technical Memoranda

File

17041-advancing-land-surface-model-development-satellite-based-earth-observations.pdf

Advancing land surface model development with satellite-based Earth observations

Author

R. Orth

Emanuel Dutra

I.F. Trigo

Gianpaolo Balsamo

2017, Technical memorandum, ECMWF Technical Memoranda

File

17042-advancing-land-surface-model-development-satellite-based-earth-observations.pdf

Diagnostic methods for understanding the origin of forecast errors

Author

L. Magnusson

2017, Technical memorandum, ECMWF Technical Memoranda

File

17097-diagnostic-methods-understanding-origin-forecast-errors.pdf

Use and verification of ECMWF products in Member and Co-operating States (2016)

Author

Tim Hewson

2017, Technical memorandum, ECMWF Technical Memoranda

File

17100-use-and-verification-ecmwf-products-member-and-co-operating-states-2016.pdf

Assimilation of Global Precipitation Mission (GPM) Microwave Imager (GMI) in all-sky conditions

Author

Peter Lean

Alan Geer

Katrin Lonitz

2017, Technical memorandum, ECMWF Technical Memoranda

File

17174-assimilation-global-precipitation-mission-gpm-microwave-imager-gmi-all-sky-conditions.pdf

An evaluation of FY-3C MWRI and Assessment of the long-term quality of FY-3C MWHS-2 at ECMWF and the Met Office

Author

Heather Lawrence

F. Carminati

W. Bell

Niels Bormann

S. Newman

Nigel Atkinson

Alan Geer

S. Migliorini

Qifeng Lu

K. Chen

2017, Technical memorandum, ECMWF Technical Memoranda

File

17206-evaluation-fy-3c-mwri-and-assessment-long-term-quality-fy-3c-mwhs-2-ecmwf-and-met-office.pdf

Implementation of a CAMS-based aerosol climatology in the IFS

Author

S. Remy

Johannes Flemming

J.-J. Morcrette

2017, Technical memorandum, ECMWF Technical Memoranda

File

17219-implementation-cams-based-aerosol-climatology-ifs.pdf

All-sky assimilation of Megha-Tropiques/SAPHIR radiances in the ECMWF numerical weather prediction system

Author

P. Chambon

Alan Geer

2017, Technical memorandum, ECMWF Technical Memoranda

File

17253-all-sky-assimilation-megha-tropiquessaphir-radiances-ecmwf-numerical-weather-prediction.pdf

The ECMWF research to operations (R20) process

Author

Roberto Buizza

Erik Andersson

Richard Forbes

M. Sleigh

2017, Technical memorandum, ECMWF Technical Memoranda

File

17549-ecmwf-research-operations-r20-process.pdf

An assessment of different radiosonde types 2015/2016

Author

B. Ingleby

2017, Technical memorandum, ECMWF Technical Memoranda

File

17551-assessment-different-radiosonde-types-20152016.pdf

"Time" -parallel diffusion-based correlation operators

Author

A.T. Weaver

S. Gurol

J. Tshimanga

Marcin Chrust

A. Piacentini

2017, Technical memorandum, ECMWF Technical Memoranda

File

17578-time-parallel-diffusion-based-correlation-operators.pdf

Search ECMWF publications

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Implicit and explicit cross-correlations in coupled data assimilation

Report on Stratosphere Task Force

Forecasting tropical cyclone landfall using ECMWF's seasonal forecasts from System 4

Evidence of a stratospheric methane bias in the IFS against MIPAS data

Assimilating observations sensitive to cloud and precipitation

Radiation in numerical weather prediction

A generic ensemble generation scheme for data assimilation and ocean analysis

Tropical Cyclone Sensitivity to Ocean Coupling

A Strategy for Data Assimilation

Evaluation of ECMWF forecasts, including 2016-2017 upgrades

A positive definite tracer mass fixer for high resolution weather and atmospheric composition forecasts

Comparing Arctic winter sea-ice thickness from SMOS and ORAS5

An OpenACC GPU adaptation of the IFS cloud microphysics scheme

Advancing land surface model development with satellite-based Earth observations

Advancing land surface model development with satellite-based Earth observations

Diagnostic methods for understanding the origin of forecast errors

Use and verification of ECMWF products in Member and Co-operating States (2016)

Assimilation of Global Precipitation Mission (GPM) Microwave Imager (GMI) in all-sky conditions

An evaluation of FY-3C MWRI and Assessment of the long-term quality of FY-3C MWHS-2 at ECMWF and the Met Office

Implementation of a CAMS-based aerosol climatology in the IFS

All-sky assimilation of Megha-Tropiques/SAPHIR radiances in the ECMWF numerical weather prediction system

The ECMWF research to operations (R20) process

An assessment of different radiosonde types 2015/2016

"Time" -parallel diffusion-based correlation operators

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