SM41E:
Temporal Variations of Precipitation: Fluctuating Aurora, ULF Modulation of High-Frequency Waves, and Modulation of Energetic Particle Loss I

Submit an Abstract to this Session Please know the abstract submission deadline has passed. There are no exceptions to this deadline and no new abstracts can be submitted.
You can still search the program to see your colleague�s abstract submissions as well as the sessions submitted for the 2016 Fall Meeting. The final program will be released in early October.


Session ID#: 18086

Session Description:
Several types of auroras, such as pulsating and flickering aurora, are known to turn on and off or vary between bright and dim on time scales of fractions of a second to a few tens of seconds. A common characteristic is a remarkable irregularity in their temporal and spatial variations. Various wave-particle interactions in the inner magnetosphere have been implicated in the structure of fluctuating aurora. This common occurring phenomenon has been studied for more than 60 years but the underlying processes remain poorly understood. Recent observational advances both from ground-based observations and satellites have provided an excellent opportunity to finally understand the fluctuating aurora. The aim of this session is therefore to present studies that can contribute to our understanding of the underlying physics behind the fluctuating aurora. Theoretical as well as observationally driven studies are welcome.
Primary Convener:  Beate Krøvel Humberset, University of Bergen, Birkeland Centre for Space Science, Bergen, Norway
Conveners:  Dr. Alexa Jean Halford, PhD. , NASA Goddard Space Flight Center, Greenbelt, MD, United States, Aaron W Breneman, The University of Minnesota, Minneapolis, United States and Allison N Jaynes, University of Iowa, Iowa City, IA, United States
Chairs:  Beate Krøvel Humberset, University of Bergen, Birkeland Centre for Space Science, Bergen, Norway, Aaron W Breneman, The University of Minnesota, Minneapolis, United States and Chris A Colpitts, University of Minnesota, School of Physics and Astronomy, Minneapolis, MN, United States
OSPA Liaison:  Allison N Jaynes, University of Iowa, Iowa City, IA, United States
Index Terms:

2483 Wave/particle interactions [IONOSPHERE]
2704 Auroral phenomena [MAGNETOSPHERIC PHYSICS]
2716 Energetic particles: precipitating [MAGNETOSPHERIC PHYSICS]
2774 Radiation belts [MAGNETOSPHERIC PHYSICS]

Abstracts Submitted to this Session:

High time-resolution electron energy and flux estimates inside regions of flickering and pulsating aurora (Invited) (120786)
Robert Michell1,2, Marilia Samara1 and Guy Alan Grubbs II3, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)University of Maryland College Park, College Park, MD, United States, (3)Southwest Research Institute, San Antonio, United States
Determination of electron precipitation characteristics and ionospheric conductance using high spatio-temporal resolution ground-based multi-spectral imaging (183225)
Guy Alan Grubbs II, Southwest Research Institute, San Antonio, United States, Robert Michell, University of Maryland College Park, College Park, MD, United States, Marilia Samara, NASA Goddard Space Flight Center, Greenbelt, MD, United States and Donald Hampton, University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States
Understanding Pulsating Aurora: Overview and Outlook (Invited) (131401)
David J Knudsen, University of Calgary, Calgary, AB, Canada
Differentiating Types of Patchy Pulsating Aurora (197604)
Eric Grono1, Eric Donovan1, Kyle R Murphy2, Emma Spanswick1 and Bing Yang1, (1)University of Calgary, Calgary, AB, Canada, (2)NASA Goddard Space Flight Center, Greenbelt, MD, United States
Modulation of whistler-mode chorus waves by ULF and the effects on auroral precipitation (Invited) (124139)
Allison N Jaynes1, Maria Usanova2, Marc Lessard3, Kazue Takahashi4, Ashar Ali5, David Malaspina6, Robert Michell7, Emma Spanswick8, Eric Donovan8, Craig Klitzing1, 9, Marilia Samara10, Harlan E Spence11 and John R Wygant12, (1)University of Iowa, Iowa City, IA, United States, (2)University of Colorado at Boulder, Boulder, United States, (3)University of New Hampshire Main Campus, Durham, NH, United States, (4)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (5)University of Colorado at Boulder, Boulder, CO, United States, (6)University of Colorado, Astrophysical and Planetary Sciences Department, Boulder, United States, (7)University of Maryland College Park, College Park, MD, United States, (8)University of Calgary, Calgary, AB, Canada, (9)Los Alamos National Laboratory, Los Alamos, NM, United States, (10)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (11)University of New Hampshire Main Campus, Space Science Center, Durham, NH, United States, (12)University of Minnesota Twin Cities, Minneapolis, MN, United States
Coherent Whistler Mode Waves Simultaneously Observed Over Unexpectedly Large Spatial Scales (149988)
Jinxing Li1, Jacob Bortnik1, Wen Li1, Richard M Thorne1, Dr. Xiangning Chu2, Lunjin Chen3, Craig Kletzing4, William S Kurth5, George B Hospodarsky5, John R Wygant6, Aaron W Breneman7 and Scott Thaller6, (1)University of California Los Angeles, Los Angeles, CA, United States, (2)University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, United States, (3)University of Texas at Dallas, Richardson, TX, United States, (4)University of Iowa, Physics and Astronomy, Iowa City, United States, (5)University of Iowa, Iowa City, IA, United States, (6)University of Minnesota Twin Cities, Minneapolis, MN, United States, (7)The University of Minnesota, Minneapolis, United States
Balloon Observations of ULF Wave Modulated Relativistic Electron Precipitation (Invited) (122426)
Leslie A Woodger, Dartmouth College, Physics & Astronomy, Hanover, NH, United States, Robyn M Millan, Dartmouth College, Department of Physics and Astronomy, Hanover, NH, United States and Dr. Alexa Jean Halford, PhD. , NASA Goddard Space Flight Center, Greenbelt, MD, United States
The role of localised Ultra-Low Frequency waves in energetic electron precipitation (173741)
Jonathan Rae1, Kyle R Murphy2, Clare Watt3, Ian Robert Mann4, Louis Ozeke4, Dr. Alexa Jean Halford, PhD. 2, David G Sibeck5, Mark A. Clilverd6, Craig J Rodger7, Alex W Degeling8 and Howard J Singer9, (1)University College London, London, United Kingdom, (2)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (3)Northumbria University, Department of Mathematics, Physics and Electrical Engineering, Newcastle-Upon-Tyne, United Kingdom, (4)University of Alberta, Department of Physics, Edmonton, AB, Canada, (5)NASA/GSFC, Greenbelt, United States, (6)British Antarctic Survey, Cambridge, United Kingdom, (7)University of Otago, Department of Physics, Dunedin, New Zealand, (8)University of Alberta, Edmonton, AB, Canada, (9)National Oceanic and Atmospheric Administration, Space Weather Prediction Center, Boulder, CO, United States

See more of: SPA-Magnetospheric Physics