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Meetings related to VarSITI


Asia Osceania Geosciences Society (AOGS) 11th Annual Meeting
Session ID: ST26;
Session Title: VarSITI - Variability of the Sun and Its Terrestrial Impact

July 30-July 311, 2014, Sapporo, Japan

web-address: http://www.asiaoceania.org/aogs2014/


Conveners: Kazuo Shiokawa STEL, Nagoya Univ., Taro Sakao ISAS/JAXA, Toshihiko Hirooka Kyushu Univ.
Session Description:

The scientists in the solar-terrestrial physics are watching very unusual solar activities in cycle 24 and their consequences on Earth which have never been observed since modern scientific measurements become available. The next SCOSTEP program "Variability of the Sun and Its Terrestrial Impact (VarSITI)" (2014-2018) will focus on the particular solar activity and their consequences on Earth, for various times scales from the order of thousands years to milliseconds, and for various locations and their connections from the solar interior to the Earth's atmosphere. In order to elucidate these various sun-earth connections, we encourage communication between solar scientists (solar interior, sun, and the heliosphere) and geospace scientists (magnetosphere, ionosphere, and atmosphere). Campaign observations will be promoted for particular interval in collaboration with relevant satellite and ground-based missions as well as modeling efforts. Four scientific projects will be carried out in VarSITI as (1) Solar Evolution and Extrema (SEE), (2) International Study of Earth-Affecting Solar Transients (ISEST/Minimax24), (3) Specification and Prediction of the Coupled Inner-Magnetospheric Environment (SPeCIMEN), and (4) Role Of the Sun and the Middle atmosphere/thermosphere/ionosphere In Climate (ROSMIC).

This international session gives a forum to discuss on-going and planned scientific projects related to VarSITI, in order to make coordination of various projects between the sun and the earth. All presentations related to the solar-terrestrial relationship are welcome in the field of ground and satellite observations, theory, modeling, and applications for space weather forecast, as well as capacity building.



Asia Osceania Geosciences Society (AOGS) 11th Annual Meeting
Session ID: ST04-06;
Session Title: Solar Activity, Space Weather and Space Climate

August 01, 2014, Sapporo, Japan

web-address: http://www.asiaoceania.org/aogs2014/

Conveners: Dr. Edward Cliver (NSO, United States), Prof. Katya Georgieva (Bulgarian Academy of Sciences), Mr. George Maeda (ICSWSE, Japan), Prof. Thai Lan Hoang (Academy of Sciences, Viet Nam), Dr. Georgeta Maris Muntean (Institute of Geodynamics, Romania), Dr. Boian Kirov (Bulgarian Academy of Sciences), Dr. Petra Koucká Knížová; (Academy of Sciences, Czech Republic), Dr. Leif Svalgaard (Stanford University, United States), Prof. Yohsuke Kamide (Rikubetsu Space and Earth Science Museum, Japan)
Session Description:

The Sun, its extended corona, the interplanetary space, the Earth’s magnetosphere, ionosphere, middle and low atmosphere, are all parts of a complex system – the heliosphere. Various manifestations of solar activity cause disturbances known as space weather effects in the interplanetary space, near-Earth environment, and all the Earth's ”spheres”. Long-term variations in the frequency, intensity and relative importance of the manifestations of solar activity are due to the slow changes in the output of the solar dynamo, and they define space climate. Space climate governs long-term variations in geomagnetic activity and is the primary natural driver of terrestrial climate. To understand how the variable solar activity affects the Earth’s environment, geomagnetic activity and the atmospheric system on both short and long time scales, we need to understand the origins of solar activity itself and its different manifestations, as well as the sequence of coupling processes linking various parts of the system. This session provides a forum to discuss the chain of processes and relations from the Sun to the Earth’s surface: the origin and long-term and short-term evolution of solar activity, initiation and temporal variations in solar flares, CMEs, coronal holes, the solar wind and its interaction with the terrestrial magnetosphere, the ionosphere and its connection to the neutral dominated regions below and the plasma dominated regions above, the stratosphere, its variations due to the changing solar activity and its interactions with the underlying troposphere, and the mechanisms of solar influences on the lower atmosphere on different time-scales. Particularly welcome are papers highlighting the coupling processes between the different domains in this complex system.




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