The deadline to submit a session, town hall, or pre-conference workshop proposal for AGU25 has passed. Please search for and review proposed sessions below. Please note this site is frozen as of 4/29/25 and will not reflect any changes to proposals made after this date.


Conveners will be contacted by the AGU25 Program Committee with any requests for mergers or edits to proposals. Conveners will be notified of the acceptance of their proposal in mid-June.


Abstract submissions will also open in mid-June and the deadline for abstract submissions is 30 July, 2025.


Please visit the AGU25 website for more information or please contact AGU with any questions.

Session Proposal: Earth’s Ionospheric Electrojets (AGU25)

SM005
Earth’s Ionospheric Electrojets

Session ID#: 247623

Session Description:
The launch of the NASA EZIE mission on March 15, 2025, marks the beginning of a new and exciting era for studies of Earth’s auroral and equatorial ionospheric electrojets.  These electrojets are related to dynamical processes in Earth’s magnetosphere, solar wind interaction, and the upper layers of Earth’s atmosphere.  Despite decades of studies the characteristics of the electrojets remain a hotly debated topic: What is the structure and evolution of the auroral electrojet segment of the substorm current wedge?  To what extent is the auroral electrojet modulated by localized wedgelet current segments?  What are the key characteristics of the equatorial electrojet dynamics?  These electrojets are also critical to our ability to monitor and predict space weather since they are a dominant contributor of geomagnetically induced currents.  We invite papers that address aspects of the ionospheric electrojets.  Space based or ground based observations as well as modelling and theory is welcome.
Index Terms:

2704 Auroral phenomena [MAGNETOSPHERIC PHYSICS]
2788 Magnetic storms and substorms [MAGNETOSPHERIC PHYSICS]
3369 Thermospheric dynamics [ATMOSPHERIC PROCESSES]
7904 Geomagnetically induced currents [SPACE WEATHER]
Primary Convener:  Jesper W Gjerloev, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States
Convener:  Larry Kepko, NASA GSFC, Greenbelt, United States
 
Auroral Electrojets Under Pressure: Multi-Event Analysis of Substorm Onset and Current System Diversity (Invited) (1852614)
Shipra Sinha1, Mei-Ching Hannah Fok1 and David G Sibeck2, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)NASA/GSFC, Greenbelt, United States
 
NASA EZIE: an Innovative Mission to Resolve Decade Old Mysteries (1865540)
Jesper W Gjerloev1, Jeng-Hwa Yee2, Rafael Luiz Araujo de Mesquita3, Sidharth Misra4, Pekka Kangaslahti5, Sharmila Padmanabhan6, Larry Kepko7, Karl Laundal8, Michael Madelaire8, Viacheslav G Merkin1, Patrick Alken9, Astrid I Maute10, Heikki Vanhamaki11, Olga P Verkhoglyadova4, Wenbin Wang12, Richard Larsson13, Patrick J Espy14, Kareem Sorathia3, William H Swartz15, Dong Liang Wu16 and NASA EZIE, (1)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (2)Johns Hopkins University, Applied Physics Laboratory, Laurel, United States, (3)Johns Hopkins University Applied Physics Laboratory, Laurel, United States, (4)NASA Jet Propulsion Laboratory, Pasadena, United States, (5)Jet Propulsion Lab, Pasadena, United States, (6)Jet Propulsion Lab, Pasadena, CA, United States, (7)NASA GSFC, Greenbelt, United States, (8)University of Bergen, Department of Physics and Technology, Bergen, Norway, (9)University of Colorado Boulder, CIRES, Boulder, CO, United States, (10)University of Colorado, Boulder, CIRES, Boulder, United States, (11)University of Oulu, Space Physics and Astronomy Research Unit, Oulu, Finland, (12)National Center for Atmospheric Research, High Altitude Observatory, Boulder, United States, (13)Luleå University of Technology, Kiruna, Sweden, (14)NTNU, Trondheim, Norway, (15)Johns Hopkins University, Applied Physics Laboratory, Laurel, MD, United States, (16)Climate and Radiation Laboratory, NASA/GSFC, Greenbelt, United States
 
Auroral Electrojet Response to Solar Wind Density Pulse (Invited) (1887785)
Tuija I Pulkkinen1, Ari Gottesman1, Daniel T Welling2, Austin Brenner3 and Matti Mikael Ala-Lahti4, (1)University of Michigan Ann Arbor, Department of Climate and Space Sciences and Engineering, Ann Arbor, MI, United States, (2)University of Michigan, Ann Arbor, MI, United States, (3)Catholic University of America, Washington, United States, (4)University of Helsinki, Department of Physics, Helsinki, Finland
 
The EZIE OSSE: Mission Design and Retrieval Algorithms Readiness (1919239)
Rafael Luiz Araujo de Mesquita1, Jeng-Hwa Yee2, Jesper W Gjerloev2, Hari Nair3, Sidharth Misra4, Viacheslav G Merkin5, William H Swartz6, David Stephens1 and Brian C Wolven1, (1)Johns Hopkins University Applied Physics Laboratory, Laurel, United States, (2)Johns Hopkins University, Applied Physics Laboratory, Laurel, United States, (3)Johns Hopkins Applied Physics Laboratory, Laurel, MD, United States, (4)NASA Jet Propulsion Laboratory, Pasadena, United States, (5)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (6)Johns Hopkins University, Applied Physics Laboratory, Laurel, MD, United States
 
Current Wedge during Sawtooth Oscillations (1938993)
Ying Zou, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, Shinichi Ohtani, JHU/APL, Laurel, United States, Jesper W Gjerloev, Johns Hopkins University, Applied Physics Laboratory, Laurel, United States, Alex Chartier, Applied Physics Laboratory Johns Hopkins, Laurel, United States and Brian J Anderson, The Johns Hopkins University Applied Physics Laboratory, Laurel, United States
 
Combining EZIE Observations with Lompe to Derive Ionospheric Electrodynamics (1959056)
Karl Laundal1, Michael Madelaire1, Margot Decotte2, Fasil Tesema1, Simon Walker3, Jesper W Gjerloev4, Rafael Luiz Araujo de Mesquita5, Jeng-Hwa Yee4, Spencer Hatch1 and Heikki Vanhamaki6, (1)University of Bergen, Department of Physics and Technology, Bergen, Norway, (2)University of Bergen, Birkeland Centre for Space Science, Bergen, Norway, (3)Dublin Institute for Advanced Studies, Dublin, Ireland, (4)Johns Hopkins University, Applied Physics Laboratory, Laurel, United States, (5)Johns Hopkins University Applied Physics Laboratory, Laurel, United States, (6)University of Oulu, Space Physics and Astronomy Research Unit, Oulu, Finland
 
Electrojet Zeeman Imaging Explorer (EZIE) Mission: The Sensing Technique Used to Remotely Measure the Current-Induced Magnetic Field Vectors Around the Electrojets (1961321)
Jeng-Hwa Yee1, Rafael Luiz Araujo de Mesquita1, Frank Werner2, Sidharth Misra3, Michael Schwartz4, William H Swartz5 and Jesper W Gjerloev6, (1)Johns Hopkins University Applied Physics Laboratory, Laurel, United States, (2)University of Maryland Baltimore County, Baltimore, United States, (3)NASA Jet Propulsion Laboratory, Pasadena, United States, (4)NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (5)Johns Hopkins University, Applied Physics Laboratory, Laurel, MD, United States, (6)Johns Hopkins University, Applied Physics Laboratory, Laurel, United States
 
The EZIE Mission: Overview, Results, and How EZIE Data Can Address Outstanding Science (1965105)
William H Swartz1, Jeng-Hwa Yee2, Jesper W Gjerloev2, Rafael Luiz Araujo de Mesquita3, Sidharth Misra4, Karl Laundal5, Michael Madelaire5, Nelli Mosavi2 and Sharmila Padmanabhan6, (1)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (2)Johns Hopkins University, Applied Physics Laboratory, Laurel, United States, (3)Johns Hopkins University Applied Physics Laboratory, Laurel, United States, (4)NASA Jet Propulsion Laboratory, Pasadena, United States, (5)University of Bergen, Department of Physics and Technology, Bergen, Norway, (6)Jet Propulsion Lab, Pasadena, CA, United States
 
First EZIE comparisons and magnetic field retrievals using JPL’s Observing System Simulation Experiment (1987091)
Frank Werner1, Michael Schwartz1, Sidharth Misra2, Sharmila Padmanabhan3, Rafael Luiz Araujo de Mesquita4 and Jeng-Hwa Yee5, (1)NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (2)NASA Jet Propulsion Laboratory, Pasadena, United States, (3)Jet Propulsion Lab, Pasadena, CA, United States, (4)Johns Hopkins University Applied Physics Laboratory, Laurel, United States, (5)Johns Hopkins University, Applied Physics Laboratory, Laurel, United States
See more of: SPA-Magnetospheric Physics
<< Previous Session Proposal | Next Session Proposal >>