Albert Einstein playing violin with small orchestra; Princeton, New Jersey portraits groups

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A method for merging flow-dependent forecast error statistics from an ensemble with static statistics for use in high resolution variational data assimilation

The background error covariance matrix, B, is often used in variational data assimilation for numerical weather prediction as a static and hence poor approximation to the fully dynamic forecast error covariance matrix, Pf. In this paper the concept of an Ensemble Reduced Rank Kalman Filter (EnRRKF) is outlined. In the EnRRKF the forecast error statistics in a subspace defined by an ensemble of states forecast by the dynamic model are found. These statistics are merged in a formal way with the static statistics, which apply in the remainder of the space. The combined statistics may then be used in a variational data assimilation setting. It is hoped that the nonlinear error growth of small-scale weather systems will be accurately captured by the EnRRKF, to produce accurate analyses and ultimately improved forecasts of extreme events.

Konzert in B dur für Violine /

Also attributed to Cannabich in the Breitkopf ms. cat. of 1767.

Concerto ex C dur à violino principale, 2 violini, viola, e basso

Photocopy of the ms. original in the Stiftsbibliothek, Seitenstetten, Austria. 30-36 cm.

Concerto for horn no. 2. [music] : solo French horn and piano /

Originally for horn and string orchestra.

Concerto grosso for string orchestra, no. 5, D major. [music] /

"Edition Eulenburg, no. 268".

Violin concerto no. 3, in D minor /

Cover title.

Concerto, C moll, Violine und Klavier = ut mineur = c minor /

Cover title.

Concerto no. 1 (in A minor) for violin and piano /

Originally for violin and string orchestra; acc. arr. for piano.

St. Paul's suite : for string orchestra /

Mode of access: Internet.

Concert in a moll /

For violin and piano; acc. originally for string orchestra.

Concerto grosso for string orchestra : no.1, G major /

Mode of access: Internet.

Concerto sol mineur = g moll = g minor, violin and piano /

Mode of access: Internet.