EGU General Assembly 2007
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Nonlinear Processes in Geosciences
Nonlinear Processes:in Geosciences
NP2 Empirical Modeling
NP3 Scale, Scaling and Nonlinear Variability
NP4 Nonlineaar time-series analysis
NP5 Predictability
NP6 Turbulence and Nonlinear Waves
co-listed sessions
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Atmospheric Sciences
Climate: Past, Present, Future
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Isotopes in Geosciences: Instrumentation and Applications
Magnetism, Palaeomagnetism, Rock Physics & Geomaterials
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Nonlinear Processes in Geosciences
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  Information - NP2.03 Nonlinear low-frequency variability in atmosphere, ocean and the climate system (co-listed in CL & OS)

Event Information
A main aim of this session is to use dynamical systems concepts for understanding mechanisms and processes responsible for nonlinear low-frequency variability (NLFV) on seasonal to decadal time scales in the atmosphere, ocean and the climate system.
In the framework of these concepts, NLFV can arise due to irregular transitions between distinct atmospheric and oceanic regimes and due to interaction between low- and high-frequency modes.
Important questions are:
What part of NLFV is due to the large-scale nonlinear dynamics and what parts is due to feedbacks from unresolved scales?
How important are nonlinear instability processes, interactions betwen orographically forced and baroclinic waves and the interaction between internal modes of variability and external forcing factors?
Modelling studies are encouraged to span the range of model hierarchy from idealised models to coupled AOGCMs.

Preliminary List of Solicited Speakers

AGU Nonlinear Focus Group

General Statement
The information contained hereafter has been compiled and uploaded by the Session Organizers via the "Organizer Session Form". The Session Organizers have therefore the sole responsibility that this information is true and accurate at the date of publication, and the conference organizer cannot accept any legal responsibility for any errors or omissions that may be made, and he makes no warranty, expressed or implied, with regard to the material published.

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