[IGPP Everyone] Space Physics Seminar, Friday Mar. 6th: Challenges in Polar Geospace Science (H.C. Carlson, Utah State Univ.)

[Emmanuel V. Masongsong]

Dr. Carlson has available appointments on Friday 9-12 and 1-3pm, please contact Emmanuel if you would like to book a time. Researchers and grad students are welcome to take our visitor to lunch on Friday, meet outside 2712 at 11:50am. 



SPACE PHYSICS SEMINAR 

DEPARTMENT OF EARTH, PLANETARY, AND SPACE SCIENCES 

DEPARTMENT OF ATMOSPHERIC AND OCEANIC SCIENCES 

UNIVERSITY OF CALIFORNIA, LOS ANGELES 

(EPSS M288A, AOS M275A ) 







Herbert C. Carlson 


Center for Atmospheric and Space Sciences, Utah State University 





Challenges in Polar Geospace Science 








Abstract: 



As recently as 1980 the polar cap was thought to be a dark benign uninteresting backwater of near-earth space. As satellites became increasingly used for communication and navigation, unexpected and unexplained outages of these planned capabilities in polar regions changed all that. As sensors of increasing sensitivity populated high latitude and polar regions, they unveiled a sky filled with blazing aurora (visible to image intensified systems), and transient jets of plasma flow that significantly impact earth’s space plasma and neutral upper atmosphere, even satellite drag, and disclosed a space laboratory for discovery still being richly tapped to this day. We do a brief tour of some of the more interesting natural phenomena discovered, such as the role of solar wind, magnetic reconnection, magnetosphere-ionosphere-thermosphere coupling in driving high latitude disturbances. Input-response experiments over scales of kilometers to Earth radii are found to require integration of simple concepts of electrodynamics, aeronomy, and hydrodynamics to solve decade long challenges. We follow some highlights of what we have learned, and what we hope to, with new polar research facilities, networks of which span transpolar distances. The challenges engage ground based and space borne research internationally, the national CEDAR program, and ground-breaking work within UCLA. 



Friday, March 6, 2015 

Room 6704 Geology 

3:30 - 5:00 PM 



Refreshments served after the seminar in Room 6850. 



In-Charge 
V. Angelopoulos 


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