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8225-intercomparison-performance-operational-ocean-wave-forecasting-systems-buoy-data.pdf

D.J. Holmes

P.A. Wittmann

R. Lalbeharry

H.S. Chen

2000, Technical memorandum, ECMWF Technical Memoranda

File

A revised formulation of ocean wave dissipation and its model impact

Author

8228-revised-formulation-ocean-wave-dissipation-and-its-model-impact.pdf

Peter Janssen

Saleh Abdalla

2007, Technical memorandum, ECMWF Technical Memoranda

File

Modifications to the ECMWF WAM code

Author

8231-modifications-ecmwf-wam-code.pdf

B. Hansen

Peter Janssen

1997, Technical memorandum, ECMWF Technical Memoranda

File

A modified set up of the advection scheme in the ECMWF wave model

Author

8232-modified-set-advection-scheme-ecmwf-wave-model.pdf

Peter Janssen

B. Hansen

H. Günther

1997, Technical memorandum, ECMWF Technical Memoranda

File

The surface and sub-surface scheme in the ECMWF forecasting model: Revision andoperational assessment

Author

C. Blondin

H. Böttger

1987, Technical memorandum, ECMWF Technical Memoranda

File

8246-surface-and-sub-surface-scheme-ecmwf-forecasting-model-revision-andoperational-assessment.pdf

On some aspects of the impact of GPSRO observations in global numerical weather prediction

Author

8266-some-aspects-impact-gpsro-observations-global-numerical-weather-prediction.pdf

2013, Technical memorandum, ECMWF Technical Memoranda

File

Estimating background-error variances with the ECMWF Ensemble of Data Assimilations system: the effect of ensemble size and day-to-day variability

Author

8268-estimating-background-error-variances-ecmwf-ensemble-data-assimilations-system-effect-ensemble.pdf

L. Raynaud

L. Isaksen

2010, Technical memorandum, ECMWF Technical Memoranda

File

The evolution of the ECMWF hybrid data assimilation system

Author

8271-evolution-ecmwf-hybrid-data-assimilation-system.pdf

E. Hólm

L. Isaksen

Mike Fisher

2014, Technical memorandum, ECMWF Technical Memoranda

File

On the use of EDA background error variances in the ECMWF 4D-Var

Author

8272-use-eda-background-error-variances-ecmwf-4d-var.pdf

L. Isaksen

E. Hólm

2012, Technical memorandum, ECMWF Technical Memoranda

File

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

Author

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

Deborah Salmond

Marco Matricardi

Alan Geer

M. Hamrud

2009, Technical memorandum, ECMWF Technical Memoranda

File

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

Author

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

Jean-Noël Thépaut

2006, Technical memorandum, ECMWF Technical Memoranda

File

Spread of the ensemble of data assimilations in radiance space

Author

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

2013, Technical memorandum, ECMWF Technical Memoranda

File

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

Author

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

Rossana Dragani

Reime Eresmaa

Marco Matricardi

A. McNally

2015, Technical memorandum, ECMWF Technical Memoranda

File

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

Author

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

Sean Healy

2005, Technical memorandum, ECMWF Technical Memoranda

File

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

Author

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

A. Collard

Peter Bauer

2009, Technical memorandum, ECMWF Technical Memoranda

File

Evaluation and assimilation of ATMS data in the ECMWF system

Author

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

Anne Fouilloux

W. Bell

2012, Technical memorandum, ECMWF Technical Memoranda

File

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

Author

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

Alan Geer

S.J. English

2012, Technical memorandum, ECMWF Technical Memoranda

File

Operational implementation of RTTOV-10 in the IFS

Author

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

Alan Geer

Tomas Wilhelmsson

2011, Technical memorandum, ECMWF Technical Memoranda

File

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

Author

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

Marco Matricardi

Sean Healy

2004, Technical memorandum, ECMWF Technical Memoranda

File

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

Author