2005
DOI: 10.1256/qj.04.92
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Assimilation of GOME ozone profiles and a global chemistry–transport model using a Kalman filter with anisotropic covariance

Abstract: SUMMARYNadir ozone profiles retrieved from the Global Ozone Monitoring Experiment (GOME) instrument are assimilated with a global three-dimensional (3D) atmospheric ozone model. The assimilation procedure is based on the Kalman filter equations, and is an extension of an existing assimilation procedure for total ozone columns. As a novelty, a 3D covariance model is developed using a single parametrization for correlations in all directions, instead of the usually applied separation in horizontal and vertical d… Show more

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Cited by 49 publications
(76 citation statements)
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“…The assimilation algorithm uses a Kalman filter, and is described in Segers et al (2005). The state vector x i (i.e.…”
Section: Assimilation Algorithmmentioning
confidence: 99%
See 3 more Smart Citations
“…The assimilation algorithm uses a Kalman filter, and is described in Segers et al (2005). The state vector x i (i.e.…”
Section: Assimilation Algorithmmentioning
confidence: 99%
“…For example, in Eskes et al (2003), the number of dimensions is reduced by only assimilating total columns, while the horizontal correlation depended only on the distance between the model grid cells. Here, we follow the approach described by Segers et al (2005), by parameterizing the model covariance into a time-dependent standard deviation field and a constant correlation field. At each time step, the model's advection operator is applied to the standard deviation field.…”
Section: Assimilation Algorithmmentioning
confidence: 99%
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“…Examples (not exhaustive) of this approach are provided by KNMI (Eskes et al, 2002(Eskes et al, , 2003Segers et al, 2005), BIRA-IASB (Errera and Fonteyn, 2001), GMAO (Štajner et al, 2001), Service d'Aeronomie (Marchand et al, 2004), NCAR (Khattatov et al, 1999(Khattatov et al, , 2000, DLR (Baier et al, 2005), and the University of Köln (Nieradzik and Elbern, 2006).…”
Section: Assimilation Into a Chemical Modelmentioning
confidence: 99%