SM015
Inner magnetospheric waves and their impact on the ionosphere
Session ID#: 76697
Session Description:
Inner magnetospheric waves can significantly affect the ionosphere–thermosphere system. Chorus and ECH waves cause diffuse aurora. ULF waves modulate chorus wave activities and produce pulsating aurora, and the dissipation of ULF wave current systems can heat the ionosphere. EMIC waves cause precipitation of relativistic electrons from the radiation belt to the ionosphere and even down to the mesosphere. Such particle precipitation ionizes the upper atmosphere, enhances the ionospheric conductivity, and modifies the ionospheric electrodynamics. In turn, the thermosphere responds to the ionospheric variation via Joule heating. Recent spacecraft missions like THEMIS, RBSP, and MMS have unveiled the characteristics and distribution of inner magnetospheric waves. Ground observatories like SuperDARN, PFISR, and THEMIS have revealed the wave impacts on the ionosphere. Therefore, it is timely to discuss the role of magnetospheric waves in the magnetosphere–ionosphere coupling processes. This session invites papers on observations, simulations, theoretical investigations, or any combination of the three.
Index Terms:
2407 Auroral ionosphere [IONOSPHERE]
2736 Magnetosphere/ionosphere interactions [MAGNETOSPHERIC PHYSICS]
2772 Plasma waves and instabilities [MAGNETOSPHERIC PHYSICS]
7867 Wave/particle interactions [SPACE PLASMA PHYSICS]
Primary Convener: Hyunju KIM Connor, University of Alaska Fairbanks, Fairbanks, AK, United States
Conveners: Allison N Jaynes, University of Colorado at Boulder, LASP, Boulder, CO, United States and Michael Hartinger, University of Michigan, Ann Arbor, MI, United States
Primary Liaison: Hyunju KIM Connor, University of New Mexico Main Campus, Albuquerque, NM, United States
Ionospheric modulation by Pc5 ULF waves and wave structure detected by THEMIS-PFISR conjunction (Invited) (487448)
Boyi Wang, University of California, Los Angeles, Departments of Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, Toshi Nishimura, UCLA, Los Angeles, CA, United States, Michael Hartinger, Virginia Polytechnic Institute and State University, Bradley Department of Electrical and Computer Engineering, Blacksburg, VA, United States, Dong Lin, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States and Roger H Varney, National Center for Atmospheric Research, Boulder, CO, United States
Quantifying ECH Wave Contribution to Diffuse Auroral Precipitation (Invited) (488281)
Xiaojia Zhang, University of California Los Angeles, Department of Earth, Planetary, and Space Sciences and Institute of Geophysics and Planetary Physics, Los Angeles, CA, United States, Vassilis Angelopoulos, University of California, Los Angeles, Department of Earth, Planetary, and Space Sciences and Institute of Geophysics and Planetary Physics, Los Angeles, CA, United States, Binbin Ni, Wuhan University, Wuhan, China and Richard M Thorne, UCLA, Los Angeles, CA, United States
On the ion precipitation due to EMIC waves and field line curvature (FLC) scattering and their subsequent impact on the ionosphere (493968)
Xingbin Tian1, Yiqun Yu2, Minghui Zhu1, Shreedevi Porunakatu Radhakrishna3, Vania K Jordanova2 and Stanley C Solomon4, (1)Beihang University, Beijing, China, (2)Los Alamos National Laboratory, Los Alamos, NM, United States, (3)Space Physics Laboratory, Trivandrum, India, (4)NCAR, HAO, Boulder, CO, United States
Microbursts and Ribbons: Observations from LEO (499185)
Alexa Jean Halford, Aerospace Corporation Chantilly, Chantilly, VA, United States, T. Paul O'Brien, The Aerospace Corporation, El Segundo, CA, United States and J Bernard Blake, The Aerospace Corporation, Los Angeles, CA, United States
Plasma sheet electron precipitation due to lower and upper band chorus waves (502380)
Qianli Ma1, Hyunju KIM Connor2, Xiaochen Shen3, Wen Li3 and Xiaojia Zhang4, (1)University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, (2)University of New Mexico Main Campus, Albuquerque, NM, United States, (3)Boston University, Boston, MA, United States, (4)UCLA, Los Angeles, United States
In-situ observations of high-energy electrons in pulsating aurora using all-sky imagers, Van Allen Probes, and PFISR (502914)
Riley Troyer, University of Iowa, Iowa City, IA, United States, Allison N Jaynes, University of Colorado at Boulder, LASP, Boulder, CO, United States, Stephen Roland Kaeppler, SRI International, Menlo Park, CA, United States and Sarah Jones, Goddard Space Flight Center, Greenbelt, MD, United States
Multiple temporal variations of pulsating aurora: multi-point high-speed optical observations in Scandinavia (528128)
Yuki Kawamura, University of Electro-Communications, Tokyo, Japan, Keisuke Hosokawa, Univ Electro-Communications, Chofu, Japan, Shin-ichiro Oyama, Nagoya Univ., Nagoya, Japan, Yoshizumi Miyoshi, Nagoya University, ISEE, Nagoya, Japan, Yasunobu Ogawa, NIPR National Institute of Polar Research, Tokyo, Japan, Satoshi Kurita, ISEE, Nagoya University, Nagoya City, Japan and Ryoichi Fujii, Nagoya Univ, Nagoya, Japan
The Relationship between Pulsating Aurora and Chorus Waves: Comparing Simultaneous Observations with Gakona All Sky Camera and the Van Allen Probes (567664)
Shannon Hill, University of Michigan Ann Arbor, Climate and Space Sciences and Engineering, Ann Arbor, MA, United States, Robert Michell, Southwest Research Institute, San Antonio, TX, United States, Marilia Samara, NASA Goddard Space Flight Center, Greenbelt, MD, United States, Donald Hampton, University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States, John W Bonnell, University of California, Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, Oleksiy V. Agapitov, University of California Berkeley, Berkeley, CA, United States, Aaron W Breneman, The University of Minnesota, Minneapolis, MN, United States, Sheng Tian, University of Minnesota Twin Cities, School of Physics and Astronomy, Minneapolis, MN, United States and Tuija I Pulkkinen, University of Michigan, Department of Climate and Space Sciences and Engineering, Ann Arbor, United States
Low Energy Electron Precipitation Caused by Electrostatic Electron Cyclotron Harmonic Waves Based on Arase Observations (579070)
Mizuki Fukizawa1, Takeshi Sakanoi1, Yoshizumi Miyoshi2, Yoichi Kazama3, Yoshiya Kasahara4, Syoya Matsuda5, Ayako Matsuoka5, S. Y. Wang3 and Sunny W. Y. Tam6, (1)PPARC, Tohoku University, Sendai, Japan, (2)Nagoya University, ISEE, Nagoya, Japan, (3)ASIAA, Taipei, Taiwan, (4)Kanazawa University, Kanazawa, Japan, (5)ISAS/JAXA, Sagamihara, Japan, (6)National Cheng Kung University, Tainan, Taiwan
Fine-scale temporal characteristics of pulsating aurora: dependence on background parameters in the magnetospheric source region (579436)
Satoshi Ebukuro1, Keisuke Hosokawa2, Yoshizumi Miyoshi3, Shin-ichiro Oyama4, Yasunobu Ogawa5, Satoshi Kurita6, Yuki Kawamura1, Vania K Jordanova7 and Ryoichi Fujii8, (1)University of Electro-Communications, Tokyo, Japan, (2)Univ Electro-Communications, Chofu, Japan, (3)Nagoya University, ISEE, Nagoya, Japan, (4)Nagoya Univ., Nagoya, Japan, (5)NIPR National Institute of Polar Research, Tokyo, Japan, (6)ISEE, Nagoya University, Nagoya City, Japan, (7)Los Alamos National Laboratory, Los Alamos, NM, United States, (8)Nagoya Univ, Nagoya, Japan
