SM42A:
Drivers and Impact of Particle Loss in the Inner Magnetosphere II

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Session ID#: 17146

Session Description:
The dynamic evolution of the Earth’s radiation belts is the result of the competition between acceleration and loss processes. Recent observations and modeling provided significant advances in our understanding of acceleration mechanisms operating in the radiation belts but the loss mechanisms remain more controversial. Major loss processes include scattering by plasma waves and loss to the magnetopause accompanied by the outward radial diffusion, but identifying and separating the effects of different loss mechanisms can be an extremely challenging task. Quantifying losses over a wide range of energy is important since lower energy particles represent the seed population for acceleration and also provide energy for wave growth. Abstracts are solicited that seek to understand and quantify processes that drive the loss of energetic particles in the inner magnetosphere. We also welcome discussion of the impacts of particle loss, for example, effects on the upper atmosphere, ionospheric conductivity and IM coupling.
Primary Convener:  Maria Spasojevic, Stanford University, Stanford, CA, United States
Convener:  Yuri Shprits, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Space Physics and Space Weather, Potsdam, Germany
Chairs:  Maria Spasojevic, Stanford University, Stanford, CA, United States and Irina S S Zhelavskaya, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
OSPA Liaison:  Maria Spasojevic, Stanford University, Stanford, CA, United States
Index Terms:

2716 Energetic particles: precipitating [MAGNETOSPHERIC PHYSICS]
2774 Radiation belts [MAGNETOSPHERIC PHYSICS]
2778 Ring current [MAGNETOSPHERIC PHYSICS]
7867 Wave/particle interactions [SPACE PLASMA PHYSICS]

Abstracts Submitted to this Session:

Science Highlights from the Balloon Array for Radiation belt Electron Losses (BARREL) (Invited) (119580)
Robyn M Millan, Dartmouth College, Department of Physics and Astronomy, Hanover, NH, United States
The Effect of Precipitating Electrons and Ions on Ionospheric Conductance and Inner Magnetospheric Electric Fields 142106 (Invited) (142106)
Margaret Chen1, Colby Lemon2, James H Hecht1, J. Scott Evans3 and Alexander J Boyd4, (1)The Aerospace Corporation, El Segundo, United States, (2)The Aerospace Corporation, Los Angeles, CA, United States, (3)Computational Physics, Inc., Springfield, United States, (4)University of New Hampshire, Durham, NH, United States
Evaluating the Role and Effects of Precipitation on Relativistic Electron Losses during Storms (121399)
Yue Chen, LANL, Los Alamos, NM, United States and Xiangrong Fu, New Mexico Consortium, Los Alamos, United States
Dominant loss mechanisms in the radiation belts (177804)
Yuri Shprits1,2, Alexander Drozdov1, Adam C Kellerman3, Maria Spasojevic4, Maria Usanova5, Oleksiy V Agapitov6, Tero Raita7, Mark J. Engebretson8, Daniel N Baker9, Harlan E Spence10 and Hui Zhu1, (1)University of California Los Angeles, EPSS, Los Angeles, CA, United States, (2)University of California Los Angeles, Los Angeles, United States, (3)University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, United States, (4)Stanford University, Stanford, CA, United States, (5)University of Colorado at Boulder, Boulder, United States, (6)University of California Berkeley, Berkeley, CA, United States, (7)Sodankylä Geophysical Observatory, Sodankylä, Finland, (8)Augsburg College, Minneapolis, MN, United States, (9)University of Colorado, Laboratory for Atmospheric and Space Physics, Boulder, United States, (10)University of New Hampshire Main Campus, Space Science Center, Durham, NH, United States
Error Reduction Based Approach to the Parameterization of Statistical Wave Models for Chorus, Hiss and Equatorial Magnetosonic Waves. (160342)
Michael A Balikhin, University of Sheffield, Sheffield, S1 3JD, United Kingdom, Richard Boynton, University of Sheffield, Sheffield, United Kingdom, Simon N Walker, University of Sheffield, Sheffield, S10, United Kingdom, Federico Fraternale, Space Science Laboratory, UCB, Berkeley, United States and Oleksiy V Agapitov, University of California Berkeley, Berkeley, CA, United States
First direct evidence of a one-one correspondence of chorus wave packets and microbursts: Van Allen Probes EFW and FIREBIRD (177367)
Aaron W Breneman, The University of Minnesota, Minneapolis, United States, Alexander B Crew, Applied Physics Laboratory Johns Hopkins, Laurel, MD, United States, David M Klumpar, Montana State University - Bozeman, Space Science and Engineering Laboratory, Department of Physics, Bozeman, United States, Oleksiy V Agapitov, University of California Berkeley, Berkeley, CA, United States, John R Wygant, University of Minnesota Twin Cities, Minneapolis, MN, United States, Craig Kletzing, University of Iowa, Physics and Astronomy, Iowa City, United States and George B Hospodarsky, University of Iowa, Iowa City, IA, United States
Van Allen Probes observations of oxygen cyclotron harmonic waves in the inner magnetosphere (170364)
Maria Usanova1, David Malaspina2, Allison N Jaynes3, Robert Bruder4, Ian Robert Mann5, John R Wygant6 and James Webster4, (1)University of Colorado at Boulder, Boulder, United States, (2)University of Colorado, Astrophysical and Planetary Sciences Department, Boulder, United States, (3)University of Iowa, Iowa City, IA, United States, (4)University of Colorado at Boulder, Boulder, CO, United States, (5)University of Alberta, Department of Physics, Edmonton, AB, Canada, (6)University of Minnesota Twin Cities, Minneapolis, MN, United States
Coherent EMIC Waves and Pitch Angle Scattering of Energetic Electrons in the Magnetosphere (153997)
Dr. Remya Bhanu, PhD1, Kun-han Lee2, Lou-Chuang Lee2 and Bruce Tsurutani3, (1)NASA Goddard Space Flight Center, Greenbelt, United States, (2)Institute of Earth Sciences Academia Sinica, Taipei, Taiwan, (3)NASA Jet Propulsion Laboratory, Pasadena, CA, United States

See more of: SPA-Magnetospheric Physics