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The RTTOV-9 upgrade for clear-sky radiance assimilation in the IFS

Author

Niels Bormann

Deborah Salmond

Marco Matricardi

Alan Geer

M. Hamrud

2009, Technical memorandum, ECMWF Technical Memoranda

File

8285-rttov-9-upgrade-clear-sky-radiance-assimilation-ifs.pdf

Assimilation of MIPAS limb radiances in the ECMWF system. Part I: Experiments with a 1-dimensional observation operator.

Author

Niels Bormann

Jean-Noël Thépaut

2006, Technical memorandum, ECMWF Technical Memoranda

File

8289-assimilation-mipas-limb-radiances-ecmwf-system-part-i-experiments-1-dimensional-observation.pdf

Spread of the ensemble of data assimilations in radiance space

Author

Niels Bormann

Massimo Bonavita

2013, Technical memorandum, ECMWF Technical Memoranda

File

8291-spread-ensemble-data-assimilations-radiance-space.pdf

Enhancing the impact of IASI observations through an updated observation error covariance matrix

Author

Niels Bormann

Massimo Bonavita

Rossana Dragani

Reime Eresmaa

Marco Matricardi

A. McNally

2015, Technical memorandum, ECMWF Technical Memoranda

File

8292-enhancing-impact-iasi-observations-through-updated-observation-error-covariance-matrix.pdf

A fast radiative transfer model for limb radiances: Accounting for horizontal gradients.

Author

Niels Bormann

Sean Healy

2005, Technical memorandum, ECMWF Technical Memoranda

File

8295-fast-radiative-transfer-model-limb-radiances-accounting-horizontal-gradients.pdf

Estimates of spatial and inter-channel observation error characteristics for current sounder radiances for NWP

Author

Niels Bormann

A. Collard

Peter Bauer

2009, Technical memorandum, ECMWF Technical Memoranda

File

8299-estimates-spatial-and-inter-channel-observation-error-characteristics-current-sounder-radiances.pdf

Evaluation and assimilation of ATMS data in the ECMWF system

Author

Niels Bormann

Anne Fouilloux

W. Bell

2012, Technical memorandum, ECMWF Technical Memoranda

File

8301-evaluation-and-assimilation-atms-data-ecmwf-system.pdf

Evaluation of the microwave ocean surface emissivity model FASTEM-5 in the IFS

Author

Niels Bormann

Alan Geer

S.J. English

2012, Technical memorandum, ECMWF Technical Memoranda

File

8303-evaluation-microwave-ocean-surface-emissivity-model-fastem-5-ifs.pdf

Operational implementation of RTTOV-10 in the IFS

Author

Niels Bormann

Alan Geer

Tomas Wilhelmsson

2011, Technical memorandum, ECMWF Technical Memoranda

File

8304-operational-implementation-rttov-10-ifs.pdf

RTMIPAS: A fast radiative transfer model for the assimilation of infrared limb radiances from MIPAS.

Author

Niels Bormann

Marco Matricardi

Sean Healy

2004, Technical memorandum, ECMWF Technical Memoranda

File

8309-rtmipas-fast-radiative-transfer-model-assimilation-infrared-limb-radiances-mipas.pdf

Assimilation of MIPAS limb radiances in the ECMWF system. Part II: Experiments with a 2-dimensional observation operator and comparison to retrieval assimilation

Author

Niels Bormann

Sean Healy

M. Hamrud

2006, Technical memorandum, ECMWF Technical Memoranda

File

8311-assimilation-mipas-limb-radiances-ecmwf-system-part-ii-experiments-2-dimensional-observation.pdf

Evaluating cloud fraction and ice water content in the ECMWF integrated forecast system and three other operational forecasts models using long-term ground-based radar and lidar measurements.

Author

D. Bouniol

A. Protat

J. Delanoë

J. Pelon

D.P. Donovan

J.-M. Piriou

F. Bouyssel

A.M. Tompkins

D. Wilson

Y. Morille

M. Haeffelin

E.J. O'Connor

Robin Hogan

A.J. Illingworth

2007, Technical memorandum, ECMWF Technical Memoranda

File

8330-evaluating-cloud-fraction-and-ice-water-content-ecmwf-integrated-forecast-system-and-three.pdf

Evaluating cloud occurrence in the ECMWF integrated forecast system and three other operational forecasts models using long-term ground-based radar and lidar measurements.

Author

D. Bouniol

A. Protat

J. Delanoë

J. Pelon

D.P. Donovan

J.-M. Piriou

F. Bouyssel

A.M. Tompkins

D. Wilson

Y. Morille

M. Haeffelin

E.J. O'Connor

Robin Hogan

A.J. Illingworth

2007, Technical memorandum, ECMWF Technical Memoranda

File

8331-evaluating-cloud-occurrence-ecmwf-integrated-forecast-system-and-three-other-operational.pdf

Performance of the ECMWF and the BoM ensemble systems in the Southern Hemisphere

Author

W. Bourke

Roberto Buizza

M. Naughton

2004, Technical memorandum, ECMWF Technical Memoranda

File

8333-performance-ecmwf-and-bom-ensemble-systems-southern-hemisphere.pdf

Natural carbon dioxide exchanges in the ECMWF Integrated Forecasting System: Implementation and offline validation

Author

Souhail Boussetta

Gianpaolo Balsamo

Anton Beljaars

Agusti Panareda

J-C. Calvet

C. Jacobs

B.J.J. van den Hurk

P. Viterbo

S. Lafont

Emanuel Dutra

L. Jarlan

M. Balzarolo

D. Papale

G. van der Werf

2012, Technical memorandum, ECMWF Technical Memoranda

File

8338-natural-carbon-dioxide-exchanges-ecmwf-integrated-forecasting-system-implementation-and-offline.pdf

Impact of a satellite-derived Leaf Area Index monthly climatology in a global Numerical Weather Prediction model

Author

Souhail Boussetta

Gianpaolo Balsamo

Anton Beljaars

Tomas Kral

L. Jarlan

2011, Technical memorandum, ECMWF Technical Memoranda

File

8339-impact-satellite-derived-leaf-area-index-monthly-climatology-global-numerical-weather.pdf

The use of profiler data at ECMWF

Author

F. Bouttier

2001, Technical memorandum, ECMWF Technical Memoranda

File

8342-use-profiler-data-ecmwf.pdf

The development of 12-hourly 4D-Var. With annexes supplied by M. Miller, M. Hortal and L. Isaksen.

Author

F. Bouttier

2001, Technical memorandum, ECMWF Technical Memoranda

File

8344-development-12-hourly-4d-var-annexes-supplied-m-miller-m-hortal-and-l-isaksen.pdf

The 1997 revision of the Jb term in 3D/4D-Var

Author

F. Bouttier

J.C. Derber

Mike Fisher

1997, Technical memorandum, ECMWF Technical Memoranda

File

8349-1997-revision-jb-term-3d4d-var.pdf

Observing systems experiments in the ECMWF 4D-Var data assimilation system

Author

F. Bouttier

G.A. Kelly

2001, Technical memorandum, ECMWF Technical Memoranda

File

8351-observing-systems-experiments-ecmwf-4d-var-data-assimilation-system.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

Climate diagnostics of the ECMWF AMIP-2 simulations

Author

C. Brankovic

M.J. Miller

A. Untch

Nils Wedi

2002, Technical memorandum, ECMWF Technical Memoranda

File

8361-climate-diagnostics-ecmwf-amip-2-simulations.pdf

Impact of horizontal resolution on seasonal integrations

Author

C. Brankovic

D. Gregory

2000, Technical memorandum, ECMWF Technical Memoranda

File

8363-impact-horizontal-resolution-seasonal-integrations.pdf

Search ECMWF publications

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The RTTOV-9 upgrade for clear-sky radiance assimilation in the IFS

Assimilation of MIPAS limb radiances in the ECMWF system. Part I: Experiments with a 1-dimensional observation operator.

Spread of the ensemble of data assimilations in radiance space

Enhancing the impact of IASI observations through an updated observation error covariance matrix

A fast radiative transfer model for limb radiances: Accounting for horizontal gradients.

Estimates of spatial and inter-channel observation error characteristics for current sounder radiances for NWP

Evaluation and assimilation of ATMS data in the ECMWF system

Evaluation of the microwave ocean surface emissivity model FASTEM-5 in the IFS

Operational implementation of RTTOV-10 in the IFS

RTMIPAS: A fast radiative transfer model for the assimilation of infrared limb radiances from MIPAS.

Assimilation of MIPAS limb radiances in the ECMWF system. Part II: Experiments with a 2-dimensional observation operator and comparison to retrieval assimilation

Evaluating cloud fraction and ice water content in the ECMWF integrated forecast system and three other operational forecasts models using long-term ground-based radar and lidar measurements.

Evaluating cloud occurrence in the ECMWF integrated forecast system and three other operational forecasts models using long-term ground-based radar and lidar measurements.

Performance of the ECMWF and the BoM ensemble systems in the Southern Hemisphere

Natural carbon dioxide exchanges in the ECMWF Integrated Forecasting System: Implementation and offline validation

Impact of a satellite-derived Leaf Area Index monthly climatology in a global Numerical Weather Prediction model

The use of profiler data at ECMWF

The development of 12-hourly 4D-Var. With annexes supplied by M. Miller, M. Hortal and L. Isaksen.

The 1997 revision of the Jb term in 3D/4D-Var

Observing systems experiments in the ECMWF 4D-Var data assimilation system

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

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

Climate diagnostics of the ECMWF AMIP-2 simulations

Impact of horizontal resolution on seasonal integrations

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