A study on reducing update frequency of the forecast samples in the ensemble-based 4DVar data assimilation method

A study on reducing update frequency of the forecast samples in the ensemble-based 4DVar data assimilation method

In the ensemble-based four dimensional variational assimilation method (SVD-En4DVar), a singular value decomposition (SVD) technique is used to select the leading eigenvectors and the analysis variables are expressed as the orthogonal bases expansion of the eigenvectors. The experiments with a two-d...

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Bibliographic Details
Main Authors: Aimei Shao, Xiaobin Qiu, Chongjian Qiu, Daosheng Xu
Format: Article
Language:English
Published: Borntraeger 2013-02-01
Series:Meteorologische Zeitschrift
Subjects:
data assimilation
4dvar
enkf
svd technique
update frequencey
forecast sample
Online Access:http://dx.doi.org/10.1127/0941-2948/2013/0287

Internet

http://dx.doi.org/10.1127/0941-2948/2013/0287

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