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Workshop on flow-dependent aspects of data assimilation programme

Author

ECMWF

2007, Presentation

File

15660-workshop-flow-dependent-aspects-data-assimilation-programme.pdf

The sensitivity of analysis errors to the specification of background error covariances

Author

Mike Fisher

2007, Presentation

File

15662-sensitivity-analysis-errors-specification-background-error-covariances.pdf

Ideas for adding flow-dependence to the Met Office VAR system

Author

A. Lorenc

2007, Presentation

File

15663-ideas-adding-flow-dependence-met-office-var-system.pdf

Covariance modelling in a grid-point analysis

Author

J. Purser

M de Pondeca

D.F. Parrish

D. Dévényi

2007, Presentation

File

15664-covariance-modelling-grid-point-analysis.pdf

Ensemble Jb modelling

Author

M. Buehner

2007, Presentation

File

15665-ensemble-jb-modelling.pdf

Use of analysis ensembles in estimating flow-dependent background error variances

Author

L. Isaksen

2007, Presentation

File

15666-use-analysis-ensembles-estimating-flow-dependent-background-error-variances.pdf

Implementation of the LETKF on the NCEP global forecast system

Author

I. Szunyogh

2007, Presentation

File

15667-implementation-letkf-ncep-global-forecast-system.pdf

Impacts of flow-dependent background-error covariances in the NCEP global forecast system

Author

J.S. Whitaker

T.M. Hamill

G.P. Compo

X Wang

2007, Presentation

File

15668-impacts-flow-dependent-background-error-covariances-ncep-global-forecast-system.pdf

A regime-dependent balanced control variable based on potential vorticity

Author

R.N. Bannister

Mike Cullen

2007, Presentation

File

15669-regime-dependent-balanced-control-variable-based-potential-vorticity.pdf

Diabatic balance for the Canadian continental LAM-4D-Var

Author

L. Fillion

M. Tanguay

E. Lapalme

B. Denis

2007, Presentation

File

15670-diabatic-balance-canadian-continental-lam-4d-var.pdf

Humidity control variable and supersaturation

Author

E. Hólm

2007, Presentation

File

15671-humidity-control-variable-and-supersaturation.pdf

Background errors in HIRLAM variational data assimilation

Author

M. Lindskog

O. Vignes

N. Gustafsson

T. Landelius

S. Thorsteinsson

2007, Presentation

File

15672-background-errors-hirlam-variational-data-assimilation.pdf

Ensemble forecasting and flow-dependent estimates of initial uncertainty

Author

Martin Leutbecher

Roberto Buizza

L. Isaksen

2007, Presentation

File

15673-ensemble-forecasting-and-flow-dependent-estimates-initial-uncertainty.pdf

Spatial filtering of assimilation ensemble statistics: increase of sample size by local spatial averaging

Author

O. Pannekoucke

L. Berre

G. Desroziers

S. Ştefănescu

B. Chapnik

L. Raynaud

2007, Presentation

File

15674-spatial-filtering-assimilation-ensemble-statistics-increase-sample-size-local-spatial.pdf

Representation of inhomogeneous, non-seperable covariances by sparse wavelet-transformed matrices

Author

A. Rhodin

H. Anlauf

2007, Presentation

File

15675-representation-inhomogeneous-non-seperable-covariances-sparse-wavelet-transformed-matrices.pdf

Global implications of Arctic climate processes and feedbacks

Author

K Dethloff

2006, Presentation, ECMWF Annual Seminar 2006, ECMWF Annual Seminar

File

15680-global-implications-arctic-climate-processes-and-feedbacks.pdf

The climate and the cryosphere

Author

B. Goodison

2006, Presentation, ECMWF Annual Seminar 2006, ECMWF Annual Seminar

File

15681-climate-and-cryosphere.pdf

Antarctic climate variability and change

Author

J.C. King

2006, Presentation, ECMWF Annual Seminar 2006, ECMWF Annual Seminar

File

15682-antarctic-climate-variability-and-change.pdf

International polar year

Author

T-E. Nordeng

2006, Presentation, ECMWF Annual Seminar 2006, ECMWF Annual Seminar

File

15683-international-polar-year.pdf

Remote sensing of polar ice

Author

M.R. Drinkwater

2006, Presentation, ECMWF Annual Seminar 2006, ECMWF Annual Seminar

File

15684-remote-sensing-polar-ice.pdf

Challenges in snow measurement: solid precipitation and snow cover

Author

B. Goodison

2006, Presentation, ECMWF Annual Seminar 2006, ECMWF Annual Seminar

File

15685-challenges-snow-measurement-solid-precipitation-and-snow-cover.pdf

Polar lows and other high latitude weather systems

Author

J. Turner

T Bracegirdie

2006, Presentation, ECMWF Annual Seminar 2006, ECMWF Annual Seminar

File

15686-polar-lows-and-other-high-latitude-weather-systems.pdf

The Arctic oscillation

Author

M Wallace

2006, Presentation, ECMWF Annual Seminar 2006, ECMWF Annual Seminar

File

15687-arctic-oscillation.pdf

Data assimilation at high latitudes

Author

Erik Andersson

Niels Bormann

Carla Cardinali

M. Drusch

Mike Fisher

L. Isaksen

Jean-Noël Thépaut

Drasko Vasiljevic

2006, Presentation, ECMWF Annual Seminar 2006, ECMWF Annual Seminar

File

15688-data-assimilation-high-latitudes.pdf

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Workshop on flow-dependent aspects of data assimilation programme

The sensitivity of analysis errors to the specification of background error covariances

Ideas for adding flow-dependence to the Met Office VAR system

Covariance modelling in a grid-point analysis

Ensemble Jb modelling

Use of analysis ensembles in estimating flow-dependent background error variances

Implementation of the LETKF on the NCEP global forecast system

Impacts of flow-dependent background-error covariances in the NCEP global forecast system

A regime-dependent balanced control variable based on potential vorticity

Diabatic balance for the Canadian continental LAM-4D-Var

Humidity control variable and supersaturation

Background errors in HIRLAM variational data assimilation

Ensemble forecasting and flow-dependent estimates of initial uncertainty

Spatial filtering of assimilation ensemble statistics: increase of sample size by local spatial averaging

Representation of inhomogeneous, non-seperable covariances by sparse wavelet-transformed matrices

Global implications of Arctic climate processes and feedbacks

The climate and the cryosphere

Antarctic climate variability and change

International polar year

Remote sensing of polar ice

Challenges in snow measurement: solid precipitation and snow cover

Polar lows and other high latitude weather systems

The Arctic oscillation

Data assimilation at high latitudes

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