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Interhemispheric Conjugacy Effects in Solar Terrestrial and Aeronomy Research

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Near-Earth space (geospace) is an integral part of the Earth system, providing the material link between the Sun and Earth, primarily through the polar regions. A goal of the ICESTAR Programme is to create an integrated, quantitative description of the upper atmosphere over Antarctica, and its coupling to the geospace environment.

ICESTAR to Convene Session at 2009 Fall AGU


SM07: Inter-hemispheric Similarities and Asymmetries in Geospace Phenomena

Sponsor: SPA - Magnetospheric Physics

Measurements of high-latitude electromagnetic fields, currents, and auroras in the conjugate hemispheres have revealed latitudinal, longitudinal and hemispheric asymmetries. Such global-scale MI coupling effects should be predicted by global models, yet many fundamental questions remain. For example, can asymmetries in auroral intensity and morphology be accounted for by tilt angle and IMF influence on the magnetosphere? Or is the energy input from the solar wind to the magnetosphere different in the two hemispheres? What is the role of seasonal conductivity differences and inter-hemispherical currents? Conjugate imaging from space, measurements from ground-based facilities and statistical studies are used to address these questions. In addition to final results we will be interested to hear discussion about the remaining outstanding questions and suggestions on how they could be solved with the massive data sets which we now have in our hands.

Conveners:

Nikolai Ostgaard
Dept. of Physics and Technology, University of Bergen
Allegt 55
Bergen, NOR  N-5007
+47 5558 2794
Nikolai.Ostgaard@uib.no

Natsuo Sato
National Institute of Polar Research 10-3
Midoricho, Tachikawa-shi
Tokyo, JPN  190-8518
+81-42-512-0602
nsato@nipr.ac.jp

Allan T Weatherwax
Siena College, USA
515 Loudon Road
Loudonville, NY, USA  12211-1462
518.786.5089
aweatherwax@siena.edu

Kirsti Kauristie
Finnish Meteorological Institute
P.O.B. 503
Helsinki, FIN  FIN-00101
+358-9-1929 4637
Kirsti.Kauristie@fmi.fi

Featured Papers

ICESTAR is co-sponsoring and/or providing support for the following international meetings in 2008

Polar Gateways Arctic Circle Sunrise 2008

IPY Cluster63 Meeting, Bergen Norway

Internatinal Riometer Workshop III

  • Sunday, June 22, 2008
  • Zermatt Resort & Spa - Utah

Space Weather School


Solar Terrestrial Physics from the Polar Regions

L’Aquila, Italy, April 6 -11, 2009

Visit http://www.cifs-isss.org for further details.

Recent ICESTAR Science Results