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Nonlinear Processes in Geophysics An interactive open-access journal of the European Geosciences Union
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Numerical modeling, predictability and data assimilation in weather, ocean and climate: A special issue honoring the legacy of Anna Trevisan (1946-2016)
Editor(s): R. Benzi, A. Carrassi, M. Ghil, E. Kalnay, J.M. Lopez, A. Speranza, and O. Talagrand More information

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12 Nov 2018
Review article: Comparison of local particle filters and new implementations
Alban Farchi and Marc Bocquet
Nonlin. Processes Geophys., 25, 765-807, https://doi.org/10.5194/npg-25-765-2018,https://doi.org/10.5194/npg-25-765-2018, 2018
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07 Nov 2018
Data assimilation of radar reflectivity volumes in a LETKF scheme
Thomas Gastaldo, Virginia Poli, Chiara Marsigli, Pier Paolo Alberoni, and Tiziana Paccagnella
Nonlin. Processes Geophys., 25, 747-764, https://doi.org/10.5194/npg-25-747-2018,https://doi.org/10.5194/npg-25-747-2018, 2018
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19 Sep 2018
Nonlinear effects in 4D-Var
Massimo Bonavita, Peter Lean, and Elias Holm
Nonlin. Processes Geophys., 25, 713-729, https://doi.org/10.5194/npg-25-713-2018,https://doi.org/10.5194/npg-25-713-2018, 2018
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10 Sep 2018
The onset of chaos in nonautonomous dissipative dynamical systems: a low-order ocean-model case study
Stefano Pierini, Mickaël D. Chekroun, and Michael Ghil
Nonlin. Processes Geophys., 25, 671-692, https://doi.org/10.5194/npg-25-671-2018,https://doi.org/10.5194/npg-25-671-2018, 2018
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04 Sep 2018
Climatic responses to systematic time variations of parameters: a dynamical approach
Catherine Nicolis
Nonlin. Processes Geophys., 25, 649-658, https://doi.org/10.5194/npg-25-649-2018,https://doi.org/10.5194/npg-25-649-2018, 2018
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04 Sep 2018
Chaotic dynamics and the role of covariance inflation for reduced rank Kalman filters with model error
Colin Grudzien, Alberto Carrassi, and Marc Bocquet
Nonlin. Processes Geophys., 25, 633-648, https://doi.org/10.5194/npg-25-633-2018,https://doi.org/10.5194/npg-25-633-2018, 2018
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30 Aug 2018
Comparison of stochastic parameterizations in the framework of a coupled ocean–atmosphere model
Jonathan Demaeyer and Stéphane Vannitsem
Nonlin. Processes Geophys., 25, 605-631, https://doi.org/10.5194/npg-25-605-2018,https://doi.org/10.5194/npg-25-605-2018, 2018
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24 Aug 2018
Ensemble variational assimilation as a probabilistic estimator – Part 2: The fully non-linear case
Mohamed Jardak and Olivier Talagrand
Nonlin. Processes Geophys., 25, 589-604, https://doi.org/10.5194/npg-25-589-2018,https://doi.org/10.5194/npg-25-589-2018, 2018
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24 Aug 2018
Ensemble variational assimilation as a probabilistic estimator – Part 1: The linear and weak non-linear case
Mohamed Jardak and Olivier Talagrand
Nonlin. Processes Geophys., 25, 565-587, https://doi.org/10.5194/npg-25-565-2018,https://doi.org/10.5194/npg-25-565-2018, 2018
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27 Jul 2018
OSSE for a sustainable marine observing network in the Sea of Marmara
Ali Aydoğdu, Timothy J. Hoar, Tomislava Vukicevic, Jeffrey L. Anderson, Nadia Pinardi, Alicia Karspeck, Jonathan Hendricks, Nancy Collins, Francesca Macchia, and Emin Özsoy
Nonlin. Processes Geophys., 25, 537-551, https://doi.org/10.5194/npg-25-537-2018,https://doi.org/10.5194/npg-25-537-2018, 2018
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09 Jul 2018
Parametric covariance dynamics for the nonlinear diffusive Burgers equation
Olivier Pannekoucke, Marc Bocquet, and Richard Ménard
Nonlin. Processes Geophys., 25, 481-495, https://doi.org/10.5194/npg-25-481-2018,https://doi.org/10.5194/npg-25-481-2018, 2018
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21 Jun 2018
Sensitivity analysis with respect to observations in variational data assimilation for parameter estimation
Victor Shutyaev, Francois-Xavier Le Dimet, and Eugene Parmuzin
Nonlin. Processes Geophys., 25, 429-439, https://doi.org/10.5194/npg-25-429-2018,https://doi.org/10.5194/npg-25-429-2018, 2018
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19 Jun 2018
Evaluating a stochastic parametrization for a fast–slow system using the Wasserstein distance
Gabriele Vissio and Valerio Lucarini
Nonlin. Processes Geophys., 25, 413-427, https://doi.org/10.5194/npg-25-413-2018,https://doi.org/10.5194/npg-25-413-2018, 2018
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28 May 2018
Exploring the Lyapunov instability properties of high-dimensional atmospheric and climate models
Lesley De Cruz, Sebastian Schubert, Jonathan Demaeyer, Valerio Lucarini, and Stéphane Vannitsem
Nonlin. Processes Geophys., 25, 387-412, https://doi.org/10.5194/npg-25-387-2018,https://doi.org/10.5194/npg-25-387-2018, 2018
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02 May 2018
Fluctuations of finite-time Lyapunov exponents in an intermediate-complexity atmospheric model: a multivariate and large-deviation perspective
Frank Kwasniok
Nonlin. Processes Geophys. Discuss., https://doi.org/10.5194/npg-2018-25,https://doi.org/10.5194/npg-2018-25, 2018
Manuscript under review for NPG (discussion: final response, 2 comments)
27 Apr 2018
Quasi-static ensemble variational data assimilation: a theoretical and numerical study with the iterative ensemble Kalman smoother
Anthony Fillion, Marc Bocquet, and Serge Gratton
Nonlin. Processes Geophys., 25, 315-334, https://doi.org/10.5194/npg-25-315-2018,https://doi.org/10.5194/npg-25-315-2018, 2018
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