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LASP Magnetosphere Seminars (FOM)

2014 Seminar Schedule

Below is a schedule of the informal LASP Friends of the Magnetosphere (FOM) Seminars for the Fall 2014 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 Rob.Wilson at lasp.colorado.edu.

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


Current Schedule:


Current Schedule (expanded):

Sept 23, 2014 – “Dynamic Geomagnetic Field Maps: Blending Observation and Theory in Space Weather Operations”

Speaker:   E. Joshua Rigler (U.S.G.S.)
Date & Time:   Sept. 23, 2014 ,  4:00 PM Location: LASP Space Science Building, room N100 (1st floor).
Abstract:  

Spherical elementary current systems (SECs; a NASA implementation of Amm & Viljanen’s seminal work) are fit to USGS real time magnetic observatory measurements, then used to generate contiguous time-varying maps of ground-level magnetic fields across the continental United States. These maps will eventually be used/disseminated by NOAA’s Space Weather Prediction Center as a geomagnetically induced […]

Sept 30, 2014 – “Understanding the Role of EMIC Waves in the Dynamics of Relativistic and Ultra-relativistic Electron Populations”

Speaker:   M.E. Usanova (LASP)
Date & Time:   Sept. 30, 2014 ,  4:00 PM Location: LASP Space Science Building, room N100 (1st floor).
Abstract:  

Electromagnetic ion cyclotron (EMIC) waves are believed to be important for influencing the dynamics of energetic particles in the inner magnetosphere, especially in relation to ring current and radiation belt dynamics. EMIC waves often grow as a result of perpendicular temperature anisotropy, with the ion dynamics and energy and pitch angle distributions in the ring […]

Oct 07, 2014 – “An impenetrable barrier to ultra-relativistic electrons in the Van Allen radiation belts”

Speaker:   Dan Baker (LASP)
Date & Time:   Oct. 07, 2014 ,  4:00 PM Location: LASP Space Science Building, room W120 (1st floor).
Abstract:  

The energy distribution, spatial extent and particle species makeup of the Van Allen belts has been explored by several space missions. However, recent observations by the NASA dual-spacecraft Van Allen Probes mission have revealed wholly unexpected properties of the radiation belts, especially at highly relativistic (E > 2 MeV) and ultra-relativistic (E > 5 MeV) […]

Oct 28, 2014 – ” Perils of Using Least Squares”

Speaker:   Ashar Ali (LASP)
Date & Time:   Oct. 28, 2014 ,  4:00 PM Location: LASP Space Science Building, room N100 (1st floor).
Abstract:  

Method of least squares is the most popular method of fitting a given model to data. While the method has several advantages, such as a reasonable computational complexity, a closed form solution which is unique and guaranteed to exist in the linear case, and widespread availability of fast and efficient algorithms/implementations, it has two severe […]

Nov 04, 2014 – “Local time variations in Jupiter’s M-I coupling”

Speaker:   L.C. Ray (UCL)
Date & Time:   Nov. 04, 2014 ,  3:45 PM Location: LASP Space Science Building, room N100 (1st floor).
Abstract:  

The ionization of neutral material ejected by Jupiter’s volcanically active moon, Io, results in a plasma disc that extends from Io’s orbit out through the jovian magnetosphere. This magnetospheric plasma is coupled to the planetary ionosphere via currents which flow along the magnetic field. Inside of ~40 jovian radii, these currents transfer angular momentum from […]

Nov 11, 2014 – “Global Views of Magnetic Perturbations from ST5, DMSP and AMPERE Spacecraft: Response to Solar Wind Driving”

Speaker:   Delores Knipp (CU/NCAR)
Date & Time:   Nov. 11, 2014 ,  4:00 PM Location: LASP Space Science Building, room N100 (1st floor).
Abstract:  

In this talk I will discuss new efforts to validate and standardize low earth orbit magnetometer measurements from commercial and research satellites operating during the last decade–the Iridium constellation, Defense Meteorological Satellite Program (DMSP) Spacecraft, Space Technology 5 and the Iridium constellation.  As examples, I will show reprocessed magnetometer data from all of these missions.  […]

Nov 18, 2014 – “Jupiter’s polar cap aurora: The swirl region”

Speaker:   Denis Grodent (University of Liège)
Date & Time:   Nov. 18, 2014 ,  4:00 PM Location: LASP Space Science Building, room N100 (1st floor).
Abstract:  

2014 DPS Talk Extended

Nov 19, 2014 – “The Martian Ionosphere and Induced Magnetosphere, studied with Mars Express”

Speaker:   D. Andrews (IRFU)
Date & Time:   Nov. 19, 2014 ,  1:00 PM Location: LASP Space Science Building, room W120 (1st floor).
Abstract:  

Because of the lack of an active dynamo, Mars does not posses a dipolar magnetic field capable of forming a magnetospheric cavity like that found at Earth.  Instead, the solar wind interacts directly with the upper atmosphere and ionosphere of the planet. A ‘draped’ or ‘induced’ magnetosphere is formed, which rapidly alters with changing solar […]

Previous Magnetosphere Seminars