Four-dimensional ensemble-variational data assimilation for global deterministic weather prediction

The goal of this study is to evaluate a version of the ensemble-variational data assimilation approach (EnVar) for possible replacement of 4D-Var at Environment Canada for global deterministic weather prediction. This implementation of EnVar relies on 4-D ensemble covariances, obtained from an ensem...

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Bibliographic Details
Main Authors: M. Buehner, J. Morneau, C. Charette
Format: Article
Language:English
Published: Copernicus Publications 2013-09-01
Series:Nonlinear Processes in Geophysics
Online Access:http://www.nonlin-processes-geophys.net/20/669/2013/npg-20-669-2013.pdf