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LASP Magnetosphere Seminars (FOM)

2016 Seminar Schedule

Below is a schedule of the informal LASP Friends of the Magnetosphere (FOM) Seminars for the Spring 2016 semester. LASP holds a series of informal seminars focused on space physics and plasma research relating to the magnetospheres of Earth and other planets. The intended audience is space and planetary physics researchers in the Boulder area, although in most instances any interested persons are welcome to attend. For more information or if you have questions, please contact Frederick.Wilder at lasp.colorado.edu.

View the Address and Directions page for detailed directions to any of the LASP locations.

New seminars are being added. Please check back soon for a schedule update.


Current Schedule:


Current Schedule (expanded):

Mar 22, 2016 – Propagation and Nonlinear Amplification of Whistler Mode Waves in the Earth’s Magnetosphere

Speaker:   Mark Golkowski (CU Denver)
Date & Time:   Mar 22, 2016 ,  4:00 PM Location: LASP Space Science Building, room N100 (first floor)
Abstract:  

Whistler mode waves are known to be a key driver in magnetospheric dynamics.  The propagation trajectories of whistler mode waves are traditionally calculated using a cold plasma approximation.  We show that at frequencies near the lower hybrid resonance, the effect of ambient ~1eV electron and ion temperatures can have significant effect on the propagation trajectories.  […]

Mar 29, 2016 – Interplanetary Shocks

Speaker:   Lynn Wilson (NASA GSFC)
Date & Time:   Mar 29, 2016 ,  4:00 PM Location: LASP Space Science Building, room N100 (first floor)
Abstract:  

TBD

Feb 2, 2016 – The ‘Zebra Stripes’: An Imprint of Ionospheric Winds on Radiation Belts

Speaker:   Solene Lejosne (UC Berkeley)
Date & Time:   Feb 2, 2016 ,  4:00 PM Location: LASP Space Science Building, room N100 (first floor)
Abstract:  

We examine a characteristic effect, namely the ubiquitous appearance of structured peaks and valleys called zebra stripes in the spectrograms of energetic electrons and ions trapped in the inner belt below L~3. We propose an explanation of this phenomenon as a purely kinematic consequence of particle drift velocity modulation caused by F-region zonal plasma drifts […]

Feb 16, 2016 – Electric fields in the inner magnetosphere and deep injections of 100s keV electrons

Speaker:   Sam Califf (LASP/CU)
Date & Time:   Feb 16, 2016 ,  4:00 PM Location: LASP Space Science Building, room N100 (first floor)
Abstract:  

This talk focuses on in situ electric field observations in the inner magnetosphere and their relation to energetic electron dynamics, specifically at the inner edge of the outer radiation belt.  We begin with a description of the double-probe technique for measuring electric fields, followed by characteristics of the large-scale electric field based on many years […]

Feb 23, 2016 – International Magnetospheric Collaboration during the Cold War

Speaker:   Juan Roederer (UAF)
Date & Time:   Feb 23, 2016 ,  4:00 PM Location: LASP Space Science Building, room N100 (first floor)
Abstract:  

The term “magnetosphere” was invented by British Physicist Tommy Gold of Cornell University, who in 1959 used it to designate the magnetized plasma environment of Earth—just a few years after the International Geophysical Year (IGY) and the discovery of the radiation belts by Sergei Vernov and James Van Allen (in that temporal order—unfortunately for Vernov, […]

Mar 1, 2016 – Ion Acceleration at Injection Fronts in the Inner Magnetosphere

Speaker:   Sasha Ukhorskiy (JHUAPL)
Date & Time:   Mar 1, 2016 ,  4:00 PM Location: LASP Space Science Building, room N100 (first floor)
Abstract:  

During geomagnetic storms a large volume of ions are transported from the magnetotail deep into the inner magnetosphere leading to ion acceleration to the energies of tens to hundreds keV. Energized ions become the dominant source of plasma pressure in the inner magnetosphere. Hot plasma pressure drives large electrical currents which determine global electrodynamics and […]

Mar 8, 2016 – What have we learned about the inner belt from the Van Allen Probes and CSSWE missions?

Speaker:   Xinlin Li (LASP/CU)
Date & Time:   Mar 8, 2016 ,  4:00 PM Location: LASP Space Science Building, room N100 (first floor)
Abstract:  

TBD

Mar 15, 2016 – Van Allen Probes observations of oxygen cyclotron harmonic waves in the inner magnetosphere

Speaker:   Maria Usanova (LASP/CU)
Date & Time:   Mar 15, 2016 ,  4:00 PM Location: LASP Space Science Building, room N100 (first floor)
Abstract:  

Waves with frequencies in the vicinity of the oxygen cyclotron frequency and its harmonics have been observed on the Van Allen Probes in the inner equatorial magnetosphere during strong geomagnetic storms. We will focus on the properties of these waves and present observations from the main phase of two geomagnetic storms on November 1, 2012 […]

Previous Magnetosphere Seminars