SM019
Magnetic Reconnection on the Dayside AND the Resulting Ionospheric Signatures.
Session ID#: 82409
Session Description:
Solar-terrestrial coupling generates transient signatures at the dayside magnetopause, in the cusps, and in the high-latitude dayside ionosphere. Understanding these events will provide insight into the coupling mechanisms, e.g. magnetic reconnection. Spacecraft provide observations from regions inside and outside the magnetopause. Ground-based instruments supply information concerning ionospheric plasma flow, precipitating particles that cause the dayside aurora, field-aligned and ionospheric currents from vantage points at the footprints of magnetic field lines that map to the magnetopause.
This session focuses on studies of the solar-terrestrial coupling processes at the dayside magnetosphere and the resulting ionospheric signatures; these include poleward moving auroral forms, convection flow channels, flux transfer events, and bursts of precipitating electrons that cause cosmic noise absorption. The priority is to identify the mechanisms driving the events and their significance via studies combining observations from spacecraft and ground-based instruments within the context of results from theoretical models and computer simulations.
Index Terms:
2134 Interplanetary magnetic fields [INTERPLANETARY PHYSICS]
2723 Magnetic reconnection [MAGNETOSPHERIC PHYSICS]
2784 Solar wind/magnetosphere interactions [MAGNETOSPHERIC PHYSICS]
7526 Magnetic reconnection [SOLAR PHYSICS, ASTROPHYSICS, AND ASTRONOMY]
Primary Convener: Gerard J Fasel, Pepperdine University, Malibu, CA, United States
Conveners: David G Sibeck, NASA Goddard Space Flight Center, Greenbelt, MD, United States and Han Desheng, School of Ocean and Earth Science, Tongji University, Shanghai, China
Primary Liaison: Gerard J Fasel, Pepperdine University, Malibu, CA, United States
Magnetic curvature identification of the reconnection line on the earth’s magnetopause (Invited) (493210)
Yi Qi, University of California, Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, CA, United States, Christopher T Russell, University of California Los Angeles, Department of Earth Planetary and Space Sciences, Los Angeles, CA, United States, Robert J Strangeway, UCLA IGPP/ESS, Los Angeles, CA, United States, Roy B Torbert, Univ New Hampshire, Durham, NH, United States, William R Paterson, NASA Goddard Space Flight Center, Geospace Physics Laboratory, Greenbelt, MD, United States, Barbara L Giles, NASA Goddard Space Flight Center, Greenbelt, MD, United States and James Burch, Southwest Research Institute, San Antonio, TX, United States
Generation of kinetic Alfvén waves in dayside magnetopause reconnection: A 3-D global-scale hybrid simulation (498443)
Huanyu Wang1, Yu Lin2, Xueyi Wang2 and Zhifang Guo3, (1)University of Science and Technology of China, Hefei,, China, (2)Auburn University, Physics Department, Auburn, AL, United States, (3)Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
Birkeland Current Impacts on Cusp Ionospheric Irregularities (Invited) (515037)
Anna Faehn Follestad1, Magnus F Ivarsen1, Katie Herlingshaw2, Hossein Ghadjari3, David J Knudsen4, Kathryn A McWilliams5, Joran Moen1, Kjellmar Oksavik6, Andres Spicher7 and Jiashu Wu4, (1)University of Oslo, Oslo, Norway, (2)UNIS, Longyearbyen, Norway, (3)University of Calgary, Calgary, Canada, (4)University of Calgary, Calgary, AB, Canada, (5)University of Saskatchewan, Saskatoon, SK, Canada, (6)University of Bergen, Bergen, Norway, (7)University of Oslo, Department of Physics, Oslo, Norway
Time-Varying Magnetopause Reconnection During Sudden Storm Commencement: Global MHD Simulations (516974)
Joseph WB Eggington1, Jonathan P Eastwood1, Lars Mejnertsen1, Ravindra Tobias Desai2 and Jeremy Chittenden1, (1)Imperial College London, Physics, London, United Kingdom, (2)Imperial College London, Physics, London, SW7, United Kingdom
Field-Aligned Currents Associated with Magnetic Field Reconnection: Local Versus Global Consequences (571908)
Robert J Strangeway1, Christopher T Russell2, Brian J Anderson3, James M Weygand1, William R Paterson4, Paul Tenfjord5, Roy B Torbert6 and James L Burch7, (1)University of California Los Angeles, IGPP/EPSS, Los Angeles, CA, United States, (2)University of California Los Angeles, Department of Earth Planetary and Space Sciences, Los Angeles, CA, United States, (3)Johns Hopkins Univ, Laurel, MD, United States, (4)NASA Goddard Space Flight Center, Geospace Physics Laboratory, Greenbelt, MD, United States, (5)University of Bergen, Birkeland Centre for Space Science, Bergen, Norway, (6)Univ New Hampshire, Durham, NH, United States, (7)Southwest Research Institute San Antonio, San Antonio, TX, United States
A survey of flux transfer events observed in the dayside magnetopause (595166)
Marcos D. Silveira1,2, Hyunju KIM Connor3, David G Sibeck1 and Sun Hee Lee4, (1)NASA/GSFC, Greenbelt, MD, United States, (2)Catholic University of America, Washington, MD, United States, (3)University of Alaska Fairbanks, Fairbanks, AK, United States, (4)NASA/GSFC, Greenbelt, United States
Ionospheric Response to a Transient Event at the Magnetopause (617481)
Jennifer Lau1, Gerard J Fasel2, David G Sibeck3, Marcos D. Silveira4, Hee-Sun Lee5, J. Michael Ruohoniemi6, John c Mann2, Fred Sigernes7 and Dag A Lorentzen8, (1)Pepperdine University, natural science department, Malibu, CA, United States, (2)Pepperdine University, Malibu, CA, United States, (3)NASA/GSFC, Greenbelt, MD, United States, (4)INPE, Sao Jose Dos Campos, Brazil, (5)The Concord Consortium, Concord, United States, (6)Virginia Polytechnic Institute and State University, Blacksburg, VA, United States, (7)University Centre in Svalbard, Longyearbyen, Norway, (8)UNIS, Longyearbyen, Norway
Dayside Auroral Oval Shifts Due to Enhanced Solar Wind Dynamic Pressure (623041)
Kayley Butler1, Gerard J Fasel1, Jennifer Lau2, Annabella Mascot3, Luana Hickmann1, Minji Kim1, John c Mann1, Aine Merritt1, Allison Nguyen1, Anna Oneto1, Xixiao Zhou1, Fred Sigernes4 and Dag A Lorentzen5, (1)Pepperdine University, Malibu, CA, United States, (2)Pepperdine University, natural science department, Malibu, CA, United States, (3)Washington University in St. Louis, St. Louis, United States, (4)University Centre in Svalbard, Longyearbyen, Norway, (5)UNIS, Longyearbyen, Norway
Poleward-moving auroral forms and their connection to the solar wind speed (625463)
John c Mann1, Gerard J Fasel1, Jennifer Lau2, Fred Sigernes3 and Dag A Lorentzen4, (1)Pepperdine University, Malibu, CA, United States, (2)Pepperdine University, natural science department, Malibu, CA, United States, (3)University Centre in Svalbard, Longyearbyen, Norway, (4)UNIS, Longyearbyen, Norway
East-West Brightening in Poleward-Moving Auroral Forms and the Interplanetary Magnetic Field By -Component (626728)
Gerard J Fasel1, Jennifer Lau2, Lou-Chuang Lee3, John c Mann1, Kayley Butler1, Fred Sigernes4 and Dag A Lorentzen5, (1)Pepperdine University, Malibu, CA, United States, (2)Pepperdine University, natural science department, Malibu, CA, United States, (3)Institute of Earth Sciences Academia Sinica, Taipei, Taiwan, (4)University Centre in Svalbard, Longyearbyen, Norway, (5)UNIS, Longyearbyen, Norway
