Session Programme Meeting Programme Personal Programme Search
 
Quick Search
Nonlinear Processes in Geophysics
Empirical modelling in geophysics
Scaling and Multifractals
Chaos and nonlinear time series analysis
Predictability
Turbulence, Diffusion and Nonlinear Waves
Programme Groups
Atmospheric Sciences
Biogeosciences
Climate: Past, Present, Future
Cryospheric Sciences
Energy, Resources and the Environment
Geodesy
Geodynamics
Geomorphology
Geophysical Instrumentation
Hydrological Sciences
Magnetism, Palaeomagnetism, Rock Physics & Geomaterials
Natural Hazards
Nonlinear Processes in Geophysics
Ocean Sciences
Planetary and Solar System Sciences
Seismology
Soil System Sciences
Solar-Terrestrial Sciences
Stratigraphy, Sedimentology and Paleontology
Tectonics and Structural Geology
Volcanology, Geochemistry, Petrology & Mineralogy
Union Symposia
Educational Symposia
  Information - NP2.04 Ultralow-frequency variability of the atmosphere

Event Information
An improved understanding of the physical and dynamical processes related to tropical, mid- and high latitude atmospheric variability is one of the key ingredients for gaining a deeper knowledge of the climate engine. This requires insight into the statistical properties of atmospheric circulation regimes for the current climate, as well as an understanding of the interactions between baroclinic systems and planetary circulation patterns on seasonal time scales.

One main aim of this session is to consider possible causes for ultralow-frequency variability (ULFV) and regime behaviour in the tropics, midlatitudes and polar regions. Major issues are the connection with the tropics in relation to midlatitude LFV (e. g. the influence of ENSO on regime statistics, sensitivity to tropical warming and SSTs, shifts of the subtropical jet), changes in the ULFV of the atmosphere under the influence of changed radiative forcing, and the relation with stratospheric dynamics.

Observational and modelling studies are equally encouraged, with modelling studies expected to span the range of model hierarchy from simplified models to coupled AOGCMs.

Possible topics in this session are:
* ULFV in observations, simplified models and GCMs
* Circulation regimes and teleconnection patterns of the atmosphere
* Nonlinear forcing of low-frequency variability in simplified and coupled models
* Origin of atmospheric ULFV and changes in an altered climate under global warming
* Effects of orography, thermal forcing and synoptic-scale forcing on circulation regimes and low-frequency variability
* Influence of the tropics on midlatitude ULFV

Preliminary List of Solicited Speakers
Sukyoung Lee
Franco Molteni
Klaus Fraedrich
Dörthe Handorf

Co-Sponsorship

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.



Back to Session Programme

 
 
 
 


©2002-2008 Copernicus Systems + Technology GmbH