[Stoch] Call for Papers: "Chaotic and Stochastic Geosciences" at EGU (Austria)

Christian Franzke christian.franzke at gmail.com
Sat Nov 15 06:13:39 MST 2014

Dear all,

please consider submitting your abstract to the following session at the
EGU General Assembly 2015, 12 - 17 April, Vienna, Austria.

NP8.1/SSS11.9: Chaotic and Stochastic Geosciences

The myriad physical processes that occur over a wide range of spatial
and temporal scales in geophysical systems give rise to complex
multi-scale behavior like atmospheric and oceanic low-frequency
variability. It is of paramount importance to understand this
multi-scale behavior but difficult to take into account both the chaotic
nonlinearity and the scale interactions in modeling it. Several
deficiencies in predicting the climate system, for instance, can be
traced back to their misrepresentation in numerical weather and climate
prediction models. These deficiencies, in turn, lead to systematic
biases in the resolved-scale processes.

Given the unpredictability of the unresolved, small-scale components for
observed values of the large-scale ones, stochastic approaches can
provide more realistic representations of the multi-scale variability
and allow transitions between chaotic attractors, as well as
interactions among the scales (e.g., between climate and weather).
Furthermore, such approaches also allow for a quantification of the
uncertainties that are inherent in the modeling of nonlinear, chaotic
and multi-scale systems. Quantification of uncertainty is directly
linked to the ability to compare models and observations, and to combine
them, as in data assimilation techniques.

We invite contributions spanning fundamental studies of chaotic and
stochastic approaches, nonlinear and stochastic modeling of geophysical
systems, uncertainty quantification, stochastic parameterizations, data
assimilation using nonlinear and stochastic methods, and extreme-value
studies using a nonlinear and stochastic framework.

Abstract deadline 7 January 2015 (note at 13:00 Central European Time).

Deadline for support applications 28 November 2014

Please submit your abstracts at:

On behalf of the conveners,
Christian Franzke

Dr. Christian Franzke
Meteorologisches Institut
Universität Hamburg
Grindelberg 5
D-20144 Hamburg
Email: christian.franzke at gmail.com
Phone: +49 (0)40428389201

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