WELCOME AND INFORMATION
GRAND CHALLENGE SCIENCE FOCUS: Explore the state of the sun-Earth system during extreme space weather
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This event was designed to bring together researchers worldwide to investigate the state of the sun-Earth system during extreme space weather events in celebration of the 50th anniversary of the International Geophysical Year. The focus of this session is on understanding Sun-Earth interactions in the context of a natural system. Nature has cooperated, providing observations of new features in the auroral oval associated with large magnetic substorms in the main phase of superstorms. Because of the unusually large power inputs to the auroral oval, the extreme value of the AL index during these events, and the unusual auroral features at dawn and dusk, the substorms are termed super substorms. Transformative science in this area lies at the intersections of individual elements (the Sun, heliosphere, magnetosphere, ionosphere and atmosphere) whose collective behavior determines the global system response. Continuing progress requires access to a vast developing cyber-infrastructure of large international data sets, high-performance computing and advanced visualization, and the development of new types of interdisciplinary and international research interactions (the human side).
Sponsored by: CAWSES, NASA/LWS, eGY, IHY, NSF, and ICESTAR, and SEE conference series organizers
Return to the Auroral Oval for the 50th Anniversary of IGY- Be a Part of History
- IGY'sPast and Present:In 1957/58 during the International Geophysical Year (IGY) a global picture of substorm phases emerged based on combining all-sky camera images through international collaborations
- New Discovery:
- In 2005, an unusual auroral oval configuration, not previously reported.
- Appears to occur systematically during large substorms in the main phase of superstorms.
- What are the processes at the Sun that produce these extreme disturbances?In the May and August 2005 events, active regions on the sun were closely associated with coronal holes. How was configuration produced? How did this effect CME release?
- Does the transit across interplanetary space cause signficant modifications to the disturbance?Short-lived spike of extreme southward IMF, high speed wind
- Has geospace crossed the threshhold to a different state?
- Extreme southward Bz over short time frame. Does short time frame changes how energy distributed throughout geospace?
- Large vortex-like structure on the dawnside oval. If mapped to the equatorial plane has implications
- For mass and energy transfer from the solar wind into the magnetosphere,
- For new modes of coupling between storms and substorms,
- For new features in stormtime energy dissipation within geospace,
- Consequences throughout the coupled ionosphere/atmospheric system from pole to equator.
CAWSES Focus for IGY
- Join a Historical Effort:Contribute to the historical 50th anniversary by
Joining with other scientists worldwide to investigate the state of the Sun-Earth system during extreme events.
- Test how the human element in science can join together and use cyber-infrastructure to attack grand challenge issues.
- Explore new electronic capabilities: virtual conference, virtual observatories, visualization tools, assimilative models, global sun-to-Earth models, new international data analysis products, etc.
- The IHY presents an important opportunity to explore this state using international assets and scientific talent
- Join in a worldwide effort to define the state of the sun-Earth system crossing the threshold to super substorms
TARGETED EVENTS
SCIENTIFIC ADVISORS
- CAWSES: Susan Avery, Sunanda Basu, Duggirala Pallamraju;Theme 2: Space Weather Science and Applications: Janet Kozyra, Kazunari Shibata, Santi Basu, Walter Gonzalez, Anatoli Petrukovich, Reiner Schwenn, R. Sridharan, Fengsi Wei, Anthea Coster, Manuel Hernandez-Pajares, E. de Paula, C. Mitchell, Cesar Valladares, Ian Mann, Mark Engebretson, Jeffrey Love, Mark Moldwin, A. Viljanen, Kiyohumi Yumoto, Eftyhia Zesta, Nat Gopalswamy, Bernie Jackson, S.-T. Wu, H. Kurokawa; Theme 3 Atmospheric Coupling Processes: Gang. Lu
- IHY: Joe Davila, C. Alex Young
- eGY: Michele Weiss, William Peterson, Peter Fox
- NASA/Living With a Star Program: Larry Zanetti, Nicola Fox
- ICESTAR: Kristi Kauristie, Alan Weatherwax, Aaron Ridley, Volodya Papitashvili
- Solar Extreme Events: Igor Veselovsky, Mikhail Panasyuk
LOCAL ORGANIZING COMMITTEE: Janet Kozyra, Nicola Fox, Larry Paxton, Elsayed Talaat, Kan Liou, Michele Weiss, Danny Morrison, Robin Barnes, Duggirala Pallamraju (CAWSES Scientific Coordinator)
SPECIAL THANKS TO:
- NSF Aeronomy for support of the CAWSES Office at Boston University
- Larry Zanetti at JHU Applied Physlcs Lab for support of the "virtual conference" experiment - one of several interdisciplinary community efforts in Sun-Earth system science that he has helped to enable over the past few years.
- Masha Kuznetsova and the Community Coordinated Modeling Center (CCMC) for global modeling support for the conference information commons area
- Robin Barnes for authoring the conference software, designing the conference website and providing excellent technical support for participants.
- Participants of the Fall 2005 Stanford CAWSES Space Weather workshop; Yohsuke Kamide, Ching Meng, Rod Heelis, Bob Clauer, Aaron Ridley, Mike Liemohn, Mike Henderson and Xia Cai for interesting discussions during the selection of conference focus events.
General Information
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