SM011
Earth's dynamic cusps

Session ID#: 83270

Session Description:
Earth's magnetospheric cusps allow magnetosheath plasma to precipitate into the upper layers of the atmosphere.  Cusp observations provide unique perspectives on a wide variety of thermospheric, ionospheric and magnetospheric coupling processes such as thermospheric density anomalies, ionospheric outflow, and magnetopause reconnection.  

Such observations are of renewed interest in light of the recent Grand Challenge Initiative - Cusp rocket campaign and the decreasing barrier to entry for innovative experiments aboard low-altitude cubesat and small satellite missions.  

This session solicits contributions covering results from this Grand Challenge as well as papers presenting other theory, observations, and simulations of Earth's magnetospheric cusps, focusing on the coupling processes in the cusp region.
Index Terms:

2407 Auroral ionosphere [IONOSPHERE]
2706 Cusp [MAGNETOSPHERIC PHYSICS]
2736 Magnetosphere/ionosphere interactions [MAGNETOSPHERIC PHYSICS]
3369 Thermospheric dynamics [ATMOSPHERIC PROCESSES]

Primary Convener:  Jeffrey Michael Broll, Boston University, Boston, MA, United States
Conveners:  Stephen A Fuselier, Southwest Research Institute, San Antonio, TX, United States, Shasha Zou, University of Michigan, Ann Arbor, MI, United States and Yue Deng, University of Texas Arlington, Arlington, TX, United States
Primary Liaison:  Jeffrey Michael Broll, Boston University, Boston, MA, United States
 
Grand Challenge Initiative – CUSP and M/LT Projects (486187)
Kolbjorn Blix, Andoya Space Center, Andenes, Norway, Douglas E. Rowland, NASA Goddard Space Flight Center, Greenbelt, MD, United States, Craig Kletzing, University of Iowa, Iowa City, IA, United States, James W Labelle, Dartmouth College, Department of Physics & Astronomy, Hanover, NH, United States, Joran Moen, University of Oslo, Oslo, Norway and Christopher Koehler, Colorado Space Grant Consortium, Boulder, CO, United States
 
Diurnal Variability of Earth's Dynamic Cusps (491621)
David Alan Smith1,2 and Jan Josef Sojka1,2, (1)Utah State University, Dept. of Physics, Logan, UT, United States, (2)Center for Atmospheric and Space Sciences, Logan, UT, United States
 
Impacts of Alfvén Energy Deposition in the Cusp Ionosphere-Thermosphere (Invited) (491796)
William Lotko, Dartmouth College, Hanover, NH, United States, Benjamin R Hogan, Dartmouth College, Thayer School of Engineering, Hanover, NH, United States, Kevin H Pham, NCAR, Boulder, CO, United States and Roger H Varney, SRI International Menlo Park, Menlo Park, CA, United States
 
Characteristics of Field Aligned Electrons Around the Cusps (493832)
Jiankui Shi1, Ziying Zhang1, Klaus Torkar2, Zhengwei Cheng1, C Philippe Escoubet3, Andrew Neil Fazakerley4 and Malcolm Wray Dunlop5, (1)NSSC/Chinese Academy of Sciences, Beijing, China, (2)Space Research Institute / Austrian Academy of Sciences, Graz, Austria, (3)ESTEC/ESA, Noordwijk, Netherlands, (4)Mullard Space Science Lab., Dorking, United Kingdom, (5)Rutherford Appleton Laboratory, Didcot, United Kingdom
 
The Twin Rockets to Investigate Cusp Electrodynamics 2 (TRICE-2) Mission (Invited) (513662)
Craig Kletzing, University of Iowa, Iowa City, IA, United States, Stephen A Fuselier, Southwest Research Institute, San Antonio, TX, United States, John W Bonnell, University of California, Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, James W Labelle, Dartmouth College, Department of Physics & Astronomy, Hanover, NH, United States, Joran Moen, University of Oslo, Oslo, Norway, Karlheinz J Trattner, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, Iver Cairns, University of Sydney, Sydney, Australia and Petrinec M Steven, Lockheed Martin Advanced Technology Center, Cupertino, CA, United States
 
MMS Observations of Multi-Scale Wave Structures with Energetic Electrons at the High-Latitude Dayside Boundary Layer In the Vicinity of the Southern Cusp (518644)
Katariina Nykyri1, Xuanye Ma2,3, Jay Johnson4, Eun-Hwa Kim5, Peter A Delamere2, Rachel Rice3, Brandon L Burkholder2, Viacheslav G Merkin6, Kareem Sorathia7, Adam Michael8, Stephen A Fuselier9, Jeffrey Michael Broll10, Daniel J Gershman11, Barbara L Giles12, Robert J Strangeway13 and James L Burch10, (1)Embry-Riddle Aeronautical University, Physical Sciences/Centre for Space and Atmospheric Research, Daytona Beach, FL, United States, (2)University of Alaska Fairbanks, Fairbanks, AK, United States, (3)Embry-Riddle Aeronautical University, Daytona Beach, FL, United States, (4)Andrews University, Berrien Springs, NJ, United States, (5)Princeton University, Plasma Physics Laboratory, Princeton, NJ, United States, (6)The Johns Hopkins University, Laurel, MD, United States, (7)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (8)Boston University, Boston, MA, United States, (9)Southwest Research Institute, San Antonio, United States, (10)Southwest Research Institute San Antonio, San Antonio, TX, United States, (11)NASA Goddard Space Flight Center, Heliophysics Science Division, Greenbelt, MD, United States, (12)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (13)UCLA IGPP/ESS, Los Angeles, CA, United States
 
Statistics of the Magnetospheric Multi-Scale Observations of Energetic Particle Properties and their Relation to Diamagnetic Cavities (519878)
Brandon L Burkholder1, Katariina Nykyri2, Xuanye Ma3, Xuanye Ma4, Rachel Rice1, Viacheslav G Merkin5, Kareem Sorathia6 and Adam Michael7, (1)Embry-Riddle Aeronautical University, Daytona Beach, FL, United States, (2)Embry-Riddle Aeronautical Univ, Daytona Beach, FL, United States, (3)University of Alaska Fairbanks, Fairbanks, AK, United States, (4)Embry-Riddle Aeronautical University, Physical Sciences -- Center for Space and Atmospheric Research, Daytona Beach, FL, United States, (5)The Johns Hopkins University, Laurel, MD, United States, (6)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (7)Boston University, Boston, MA, United States
 
Cusp structures observed by the TRICE 2 sounding rockets and their relationship to the magnetopause reconnection location (521666)
Karlheinz J Trattner1, Stephen A Fuselier2, Craig Kletzing3, Petrinec M Steven4, Rhyan Sawyer5, John W Bonnell6, Scott R Bounds3, Iver Cairns7, James L Burch8, James W Labelle9 and Robert J Strangeway10, (1)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (2)Southwest Research Institute, San Antonio, United States, (3)University of Iowa, Iowa City, IA, United States, (4)Lockheed Martin Advanced Technology Center, Cupertino, CA, United States, (5)University of Texas at San Antonio, San Antonio, TX, United States, (6)University of California, Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, (7)University of Sydney, Sydney, Australia, (8)Southwest Research Institute San Antonio, San Antonio, TX, United States, (9)Dartmouth College, Department of Physics & Astronomy, Hanover, NH, United States, (10)Univ California, Los Angeles, CA, United States
 
Cusp Convection and Dynamics Derived from AMPERE Measurements of Dayside High-Latitude Birkeland Currents (527653)
Brian J Anderson, Johns Hopkins University, Baltimore, MD, United States, Sarah K. Vines, University of Texas at San Antonio, San Antonio, TX, United States, Viacheslav G Merkin, The Johns Hopkins University, Laurel, MD, United States, Robin J Barnes, JHU/APL, Laurel, MD, United States, Jesper W Gjerloev, Johns Hopkins University - Applied Physics Laboratory, Laurel, MD, United States and J. Michael Ruohoniemi, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
 
A new statistical study on the properties of cusp (531390)
Chao Xiao1, Wenlong Liu1 and Hui Zhang2, (1)Beihang University, Beijing, China, (2)University of Alaska Fairbanks, Physics Department & Geophysical Institute, Fairbanks, AK, United States
 
An Investigation of Low Energy Ion Cusp Precipitation by the TRICE 2 Sounding Rocket Campaign (543271)
Rhyan Sawyer1,2, Stephen A Fuselier1,2, Craig Kletzing3, John W Bonnell4, Scott R Bounds3, Iver Cairns5, James W Labelle6, Joran Moen7, Karlheinz J Trattner8, Petrinec M Steven9, James Burch2 and Barbara L Giles10, (1)University of Texas at San Antonio, San Antonio, TX, United States, (2)Southwest Research Institute, San Antonio, TX, United States, (3)University of Iowa, Iowa City, IA, United States, (4)University of California, Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, (5)University of Sydney, Sydney, Australia, (6)Dartmouth College, Department of Physics & Astronomy, Hanover, NH, United States, (7)University of Oslo, Oslo, Norway, (8)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (9)Lockheed Martin Advanced Technology Center, Cupertino, CA, United States, (10)NASA Goddard Space Flight Center, Greenbelt, MD, United States
 
CAPER-2 and TRICE-2 Sounding Rocket Investigations: Whistler and Upper-Hybrid Waves in the Polar Cusp (558465)
Chrystal Moser1, James W Labelle1, Craig Kletzing2, Scott R Bounds2, Spencer Hatch3, Kjellmar Oksavik3, John W Bonnell4, Stephen A Fuselier5, Joran Moen6, Andres Spicher7, Fred Sigernes8 and Iver Cairns9, (1)Dartmouth College, Department of Physics & Astronomy, Hanover, NH, United States, (2)University of Iowa, Iowa City, IA, United States, (3)University of Bergen, Bergen, Norway, (4)University of California, Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, (5)Southwest Research Institute, San Antonio, United States, (6)University of Oslo, Oslo, Norway, (7)University of Oslo, Department of Physics, Oslo, Norway, (8)University Centre in Svalbard, Longyearbyen, Norway, (9)University of Sydney, Sydney, Australia
 
Significance of Soft Electron Precipitation for the Neutral Upwelling in the Cusp: A High-resolution Numerical Modeling Approach (577825)
Tomokazu Oigawa1, Hiroyuki Shinagawa2 and Satoshi Taguchi1, (1)Kyoto University, Graduate School of Science, Kyoto, Japan, (2)NICT, Tokyo, Japan
 
Stability and variability in the cusp electron precipitation for northward IMF (579111)
Satoshi Taguchi1, Kohei Takasu1, Yushin Oda1 and Keisuke Hosokawa2, (1)Kyoto University, Graduate School of Science, Kyoto, Japan, (2)Univ Electro-Communications, Chofu, Japan
 
Modeling scintillation produced by ionospheric Kelvin Helmholtz in the cusp ionosphere using GEMINI-SIGMA (585002)
Andres Spicher1, Kshitija Deshpande2, Matthew D Zettergren3, Kjellmar Oksavik4, Yaqi Jin5, Lasse Boy Novock Clausen5 and Joran Moen1, (1)University of Oslo, Oslo, Norway, (2)Embry-Riddle Aeronautical University, Department of Physical Sciences, Daytona Beach, FL, United States, (3)Embry-Riddle Aeronautical University, Daytona Beach, FL, United States, (4)University of Bergen, Bergen, Norway, (5)University of Oslo, Department of Physics, Oslo, Norway
 
Ultra-Fast Measurements of Precipitating Electrons in Earth's Cusp (599700)
Robert Michell, University of Maryland College Park, College Park, MD, United States, Douglas E. Rowland, NASA Goddard Space Flight Center, Greenbelt, MD, United States, James Clemmons, University of New Hampshire, Durham, NH, United States, Guy Alan Grubbs II, Catholic University of America, Washington, DC, United States and Michael R Collier, NASA/GSFC, Greenbelt, MD, United States
 
Dual Sounding Rocket Observations of Plasma Convection and Shear, Field-aligned Currents, and Alfven waves and Irregularities in the Cusp during IMF Bz Negative Conditions (607378)
Robert F Pfaff Jr1, Douglas E. Rowland1, Henry T Freudenreich1, James H Clemmons2, Joran Moen3, Kjellmar Oksavik4, Andres Spicher3 and Steven C Martin1, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)University of New Hampshire, Durham, NH, United States, (3)University of Oslo, Oslo, Norway, (4)University of Bergen, Bergen, Norway
 
VISIONS-2 Observations of Electron Dynamics and Alfvén Waves (627914)
James H Clemmons1, Douglas E. Rowland2, James H Hecht3, Robert F Pfaff Jr4, Robert Michell5, Joran Moen6, Kjellmar Oksavik7, Fred Sigernes8, Mark Lester9 and Andres Spicher6, (1)University of New Hampshire Main Campus, Durham, NH, United States, (2)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (3)The Aerospace Corp, Los Angeles, CA, United States, (4)NASA/GSFC, Greenbelt, MD, United States, (5)University of Maryland College Park/ NASA GSFC, College Park, MD, United States, (6)University of Oslo, Oslo, Norway, (7)University of Bergen, Bergen, Norway, (8)University Centre in Svalbard, Longyearbyen, Norway, (9)University of Leicester, Leicester, United Kingdom
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