Session ST13: Nature of Turbulence, Dissipation, and Heating in Space Plasmas: From Alfven Waves to Kinetic Alfven Waves
website: http://www.asiaoceania.org/society/index.asp
Turbulence and dissipation of plasma waves have been widely investigated both observationally and theoretically. Wave dissipation is also intimately related to plasma heating. In plasma physics, however, the physical nature of these concepts still remains largely uncertain. For example, so far there has no unambiguous definition about what is the turbulence of plasma waves. Alfven waves (AWs), from large-scale MHD AWs to small-scale kinetic AWs (KAWs), are the most popular fluctuations in space plasmas. Owing to the in situ spacecraft measurements, space plasmas provide us a natural laboratory to study in-depth the turbulence and dissipation of AWs and the related plasma heating. In this session, we will focus on both observational analysis and theoretical modeling related to the transition regime between large MHD scales and small kinetic scales in the continuous wavevector-spectrum of AWs. We believe that, in this transition regime, turbulence, dissipation, and heating share some common physical processes.
When submitting abstracts, participants are welcome to append a brief description in a few sentences about “what is the turbulent state of plasma waves”, or more generally “what is turbulence in plasma physics”. These ideas will be discussed during this session. Through the discussions, we hope to improve our understanding of the physical nature of the turbulence, dissipation, and heating, and the relationship amongst them.
Please note that abstract submission closes on 18 Feb 2015.
Conveners:
Dr. De-Jin Wu (Purple Mountain Observatory, Chinese Academay of Sciences, China), djwu@pmo.ac.cn
Dr. Bo Li (Shandong University at Weihai, China), bbl@sdu.edu.cn
Dr. Jiansen He (Peking University, China), jshept@pku.edu.cn
For more information, please contact De-Jin Wu at djwu@pmo.ac.cn .