Space Physics Seminar - fall-2013
The dawn of chorus in the cacophony
Sept. 27, 2013
3:30 p.m. - 5 p.m.
Geology 6704
Presented By:
- Jacob Bortnik - UCLA, New Jersey Institute of Technology
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"The dawn of chorus in the cacophony: an update on its manifold effects, open problems, and opportunities" Whistler-mode chorus waves were first reported in the early 1950’s and so-named due to the resemblance of their sound to a ‘rookery of birds at dawn’, when played through a loudspeaker. In the ensuing decades, as better observations and more accurate theory began to emerge, a coherent and fascinating picture began to emerge of chorus playing a key role in the dynamics of the inner magnetosphere. In this talk, the history of chorus-related research will be briefly covered, followed by a discussion of its multifaceted roles: as the origin of plasmaspheric hiss, as the driver of the pulsating aurora and its utility in observational field-line mapping. Most notably and of particular current relevance due to the recent launch of NASA’s Van Allen Probes, we’ll discuss the role of chorus in controlling the dynamical variability of the high energy electron population that encircles the Earth, known as the radiation belts.
Chaotic dynamics in plasma transport
Oct. 4, 2013
3:30 p.m. - 5 p.m.
Geology 6704
Presented By:
- Jim Maggs - UCLA
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Seminar Description coming soon.
Three-D impulsive magnetic reconnection in a laboratory plasma
Oct. 11, 2013
3:30 p.m. - 5 p.m.
Geology 6704
Presented By:
- Seth Dorfman - UCLA
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Seminar Description coming soon.
Cold ions in the Earth's inner magnetosphere
Oct. 18, 2013
3:30 p.m. - 5 p.m.
Geology 6704
Presented By:
- Justin Lee - UCLA
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Seminar Description coming soon.
Flow Pattern associated with Substorm Current Wedge
Oct. 25, 2013
3:30 p.m. - 5 p.m.
Geology 6704
Presented By:
- Xiangning Chu - UCLA
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Seminar Description coming soon.
Dipolarizing Flux Bundles
Nov. 1, 2013
3:30 p.m. - 5 p.m.
Geology 6704
Presented By:
- Jiang Liu - UCLA
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Seminar Description coming soon.
Chaos and flux ropes
Nov. 8, 2013
3:30 p.m. - 5 p.m.
Geology 6704
Presented By:
- Walter Gekelman - UCLA
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Seminar Description coming soon.
Auroral electrojets indices in the northern and southern hemispheres
Nov. 15, 2013
3:30 p.m. - 5 p.m.
Geology 6704
Presented By:
- James Weygand - UCLA
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Seminar Description coming soon.
Magnetosphere-ionosphere-ground current circuit for the geomagnetic sudden commencements & pulsation
Nov. 22, 2013
3:30 p.m. - 5 p.m.
Geology 6704
Presented By:
- Takashi Kikuchi - Solar-Terrestrial Environment Laboratory
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Seminar Description coming soon.
Annual AGU Practice Session
Dec. 6, 2013
3:30 p.m. - 5 p.m.
Geology 6704
Presented By:
- All volunteers -
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