- Informational Meeting for CLIMATE 749 and SPACE 749
- CLaSP Seminar Series - Professor Stuart Bale
- CLaSP Seminar Series - Alice Bowman
- CLaSP Seminar Series - Dr. Elizabeth MacDonald
Informational Meeting for CLIMATE 749 and SPACE 749
January 5, 2017 - 3:40 pm
There is no CLaSP departmental seminar this week, but there is an informational meeting led by Professor Mike Liemohn and Research Scientist German Martinez for students registered for CLIMATE 749 or SPACE 749 in the SRB Auditorium.close
CLaSP Seminar Series - Professor Stuart Bale
January 12, 2017 - 3:30 pm
Professor Stuart Bale, Director of the UC Berkeley Space Sciences Laboratory, will give a special seminar.
Titile: "Alfven Wave Amplitude Limits in the Solar Wind"
Abstract: Shear-Alfven waves are the signature eigenmode of magnetized plasmas and
are ubiquitous and fundamental in space and astrophysical plasmas. Alfvenic
processes are thought to play a fundamental role in particle acceleration, auroral
processes, and magnetized turbulent cascades amongst many other processes.
Recent theoretical work has uncovered a stringent nonlinear limit on the
amplitude of linearly polarized shear-Alfven waves in high-beta collisionless plasmas.
This limit is associated with a self-excited firehose instability. We use 10 years
of Wind spacecraft data to demonstrate the existence of this effect, and also show a
low beta threshold that may be associated with parametric instability. Finally,
I will extrapolate these results to the inner heliosphere and discuss future
measurements with Solar Probe Plus.
CLaSP Seminar Series - Alice Bowman
January 19, 2017 - 3:30 pm
Our special guest for this week's CLaSP Seminar Series will be Alice Bowman, Mission Operations Manager at Johns Hopkins University Applied Physics Laboratory. Please join us!
Title: "A View from the Bridge: Behind the Scenes of Spacecraft Operations."
Abstract: Spacecraft-based observations don’t just happen at the press of a button – they take a dedicated team of scientists and engineers, in a process that starts with the design of the spacecraft and keen knowledge of how to operate it. Alice Bowman leads the space mission operations group at the Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland, and is the mission operations manager – the “MOM” – for NASA’s New Horizons mission to Pluto and the Kuiper Belt. Ms. Bowman will provide insight into the art of turning scientific desires into the commands that produce history making and inspiring images of distant worlds.close
CLaSP Seminar Series - Dr. Elizabeth MacDonald
January 26, 2017 - 3:30 pm
Our guest for this week's CLaSP Seminar Series will be Dr. Elizabeth MacDonald, Research Astrophysicist at NASA's Goddard Space Flight Center. Please join us!
Title: "Aurorasaurus.org, bringing together people and science in pursuit of the Northern and Southern Lights"
Abstract: Aurorasaurus is a mobile citizen science platform for crowd-sourcing volunteered geographic observations of the aurora. The resulting data are relevant to the space science community that lacks for such real-time observations. In turn the platform aims to improve nowcasting of the local visibility of the Northern Lights for the public through location-based notifications and an updating real-time map. This talk will highlight science results and ways to get involved with the project. Validation of auroral oval models is one goal. Improving communication of understanding the aurora is another goal. Bringing together the public with a broad scientist network allows for the exchange of ideas about auroral observations, possible satellite-ground conjunctions, and further study of rare events. The frequency of aurora-related tweets also show characteristic behavior that correlates strongly with real-time geomagnetic activity. Altogether the platform provides state-of-the-art software utilizing human-computer interactions for interdisciplinary advances in scientific research.
Bio: Dr. Liz MacDonald first witnessed the aurora as part of her doctorate research conducted in Alaska, building instruments that fly onboard research rockets to measure the particle precipitation causing the lights. She received her PhD from the University of New Hampshire and spent 9 years at Los Alamos National Lab (LANL) as a postdoctoral researcher and staff scientist. There she primarily focused on experimental plasma mass spectrometer instruments for the Van Allen Probes NASA spacecraft and LANL payloads for geosynchronous orbit. In 2012 she founded the project Aurorasaurus to take advantage of new sources of data in this, the first solar maximum with social media. The project has received interdisciplinary funding from LANL, the US National Science Foundation, and most recently NASA. Since 2014 she has been a civil servant with the Goddard Space Flight Center and has led aspects of the Fast Plasma Investigation as part of the recently launched Magnetospheric Multiscale Mission in addition to continuing her earlier research.close