SA015
Processes Driving Ionospheric Upflow and Outflow

Session ID#: 79515

Session Description:
Multiple ion energization processes act on ionospheric plasma, including Joule heating, particle precipitation, solar EUV, wave-particle interactions, parallel electric fields, and ion-neutral interactions. The interplay of these energization processes raises ionospheric plasma to higher altitudes and sometimes enables the escape of ions into the magnetosphere, where they contribute to plasma populations and affect magnetospheric dynamics. Over geologic timescales, ion escape can modify atmospheric density and composition. While a number of instruments have observed upflow and outflow processes in the aurora and polar cap, recent advances in theory and modeling of ion upflow and escape processes raise new questions and require new constraints. 

This session will focus on analysis of satellite, rocket, and ground-based observations and future observations that are needed to shed light on the processes of ion escape, as well as theory, modeling, and validation of ionospheric energization and escape processes at Earth and other planets.

Co-Organized:
  • SM - SPA-Magnetospheric Physics
Index Terms:

2407 Auroral ionosphere [IONOSPHERE]
2431 Ionosphere/magnetosphere interactions [IONOSPHERE]
2451 Particle acceleration [IONOSPHERE]
2475 Polar cap ionosphere [IONOSPHERE]

Primary Convener:  Katherine Garcia-Sage, NASA Goddard Space Flight Center, Greenbelt, MD, United States
Conveners:  Roger H Varney, National Center for Atmospheric Research, Boulder, CO, United States and Shasha Zou, University of Michigan, Ann Arbor, MI, United States
Primary Liaison:  Katherine Garcia-Sage, Goddard Space Flight Center, Greenbelt, MD, United States
 
Unexpected field-aligned PADs of energetic ions in the dayside ring current region (493468)
Chao Yue1, Jacob Bortnik2, Shasha Zou3, Thomas Coppeans3 and Toshi Nishimura4, (1)Peking University, Beijing, China, (2)University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, (3)University of Michigan, Ann Arbor, MI, United States, (4)Boston University, Center for Space Physics, Boston, MA, United States
 
“Endurance”, a new NASA mission to gauge Earth’s polar wind ambipolar electric field (497333)
Glyn Collinson1, Alex Glocer2, Robert F Pfaff Jr2, Aroh Barjatya3, Robert Michell4, James H. Clemmons5, Francis Gerard Eparvier6, Suzanne M Imber7, Mark Lester8, David Mitchell9, Maxim C King10 and Scott Bissett10, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)NASA/GSFC, Greenbelt, MD, United States, (3)Embry-Riddle Aeronautical University, Physical Sciences Department, Daytona Beach, FL, United States, (4)Southwest Research Institute, San Antonio, TX, United States, (5)The Aerospace Corp, Los Angeles, CA, United States, (6)University of Colorado at Boulder, Boulder, CO, United States, (7)Radio and Space Plasma Physics, Leicester, United Kingdom, (8)Univ Leicester, Leicester, United Kingdom, (9)Space Sciences Laboratory, University of California Berkeley, Berkeley, CA, United States, (10)NASA Wallops Flight Facility, Wallops Island, VA, United States
 
Molecular ion upflow observed by the EISCAT radar in conjunction with the Arase (ERG) satellite during the September 7, 2017 magnetic storm (515837)
Masayoshi Takada1, Kanako Seki2, Yasunobu Ogawa3, Kunihiro Keika2, Satoshi Kasahara4, Shoichiro Yokota4, Tomoaki Hori5, Kazushi Asamura4, Yoshizumi Miyoshi6 and Iku Shinohara7, (1)University of Tokyo, Department of Earth and Planetary Science, Bunkyo-ku, Japan, (2)The University of Tokyo, Tokyo, Japan, (3)NIPR National Institute of Polar Research, Tokyo, Japan, (4)ISAS/JAXA, Sagamihara, Japan, (5)Nagoya Univ. STE lab., Nagoya, Aichi, Japan, (6)Nagoya University, ISEE, Nagoya, Japan, (7)JAXA, ISAS, Sagamihara Kanagawa, Japan
 
The response of ionospheric outflow to various types of high latitude auroral precipitation (516620)
Burcu Kosar, NASA Goddard Space Flight Center, Greenbelt, MD, United States, Alex Glocer, NASA/GSFC, Greenbelt, MD, United States and Elizabeth J Mitchell, JHU/APL, Odenton, MD, United States
 
Ionospheric O+ Outflow during Sawtooth Events and Substorms Using Recalibrated FAST/TEAMS Data (519024)
Niloufar Nowrouzi, University of New Hampshire, Space Science Center, Durham, NH, United States, Lynn M Kistler, Univ New Hampshire, Durham, NH, United States, Eric J Lund, University of New Hampshire Main Campus, Space Science Center, Durham, NH, United States; College Brook Scientific, Durham, NH, United States, Kai Zhao, NUIST Nanjing University of Information Science and Technology, Institute of Space Weather, Nanjing, China and Naritoshi Kitamura, The University of Tokyo, Tokyo, Japan
 
Factors Controlling Ionospheric Outflows in the Cusp: FAST/TEAMS observations (530826)
Kai Zhao, University of New Hampshire Main Campus, Durham, NH, United States; NUIST Nanjing University of Information Science and Technology, Institute of Space Weather, Nanjing, China, Lynn M Kistler, Univ New Hampshire, Durham, NH, United States, Eric J Lund, University of New Hampshire Main Campus, Space Science Center, Durham, NH, United States, Niloufar Nowrouzi, University of New Hampshire, Space Science Center, Durham, NH, United States, Naritoshi Kitamura, The University of Tokyo, Tokyo, Japan and Robert J Strangeway, UCLA IGPP/ESS, Los Angeles, CA, United States
 
How are the N+ Ions Affecting the Transport and Acceleration of Ionospheric Outflowing Ions? (569221)
Mei-Yun Lin, University of Illinois at Urbana Champaign, Electrical and Computer Engineering, Urbana, IL, United States, Raluca Ilie, University of Illinois at Urbana Champaign, Urbana, IL, United States and Alex Glocer, NASA/GSFC, Greenbelt, MD, United States
 
Characteristics of CME- and CIR-driven ion upflows in the polar ionosphere (Invited) (570117)
Yasunobu Ogawa1, Kanako Seki2, Kunihiro Keika2 and Yusuke Ebihara3, (1)NIPR National Institute of Polar Research, Tokyo, Japan, (2)The University of Tokyo, Tokyo, Japan, (3)Kyoto University, Research Institute for Sustainable Humanosphere, Kyoto, Japan
 
The Polar Wind Modulated by the Strength of the Geomagnetic Field (594335)
Kun Li, Sun Yat-Sen University, Guangzhou, China, Matthias Foerster, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany and Stein Haaland, MPS/BCSS, IFT, Bergen, Norway
 
Influence of Soft Electron Precipitation on O+ Outflow (597518)
Kevin H Pham1, William Lotko2, Roger H Varney1 and Binzheng Zhang3, (1)National Center for Atmospheric Research, Boulder, CO, United States, (2)Dartmouth College, Hanover, NH, United States, (3)University of Hong Kong, Hong Kong, Hong Kong
 
VISIONS-2 observations of ion heating and energization near the exobase, and the role of wave-particle interactions (Invited) (600969)
Douglas E. Rowland1, Joran Moen2, Robert F Pfaff Jr3, James H Clemmons4, Andres Spicher5, Henry T Freudenreich1, Fred Sigernes6, Kjellmar Oksavik7, James H Hecht8, Michael R Collier3, John W Keller9, Jason L. McLain10, Matthew D Zettergren11, Jeffrey Klenzing1, Larry Kepko10 and Mark Lester12, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)University of Oslo, Oslo, Norway, (3)NASA/GSFC, Greenbelt, MD, United States, (4)University of New Hampshire, Durham, NH, United States, (5)University of Oslo, Department of Physics, Oslo, Norway, (6)University Centre in Svalbard, Longyearbyen, Norway, (7)University of Bergen, Bergen, Norway, (8)The Aerospace Corp, Los Angeles, CA, United States, (9)Code 691 SSED, Greenbelt, MD, United States, (10)NASA GSFC, Greenbelt, MD, United States, (11)Embry-Riddle Aeronautical University, Daytona Beach, FL, United States, (12)Univ Leicester, Leicester, United Kingdom
 
N+ Ions in Auroral Ion Upflows and Downflows (619306)
Victoria Foss, Andrew David Howarth and Andrew W Yau, University of Calgary, Calgary, AB, Canada
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