[IGPP Everyone] Reminder - Friday May 31, 2019 - Space Physics Seminar - Spring Quarter

[Marjorie Sowmendran]

 Reminder

SPACE PHYSICS SEMINAR

DEPARTMENT OF EARTH, PLANETARY, AND SPACE SCIENCES

DEPARTMENT OF ATMOSPHERIC AND OCEANIC SCIENCES

UNIVERSITY OF CALIFORNIA, LOS ANGELES

(AOS M275C, EPSS M288C)





Analysis of Ionospheric Variability on Mars and the Impact of Large-Scale Dust Activity



Dylan Dempster

EPSS, UCLA



Abstract

Understanding atmospheric loss on Mars is one of the keys to revealing the history of our red neighbor. The interaction between the upper atmosphere of Mars and the solar wind results in gas escape from the atmosphere of Mars. It is thought that this interaction has caused a once robust Martian atmosphere to evolve into the thin, arid one we see today. This escape process is dependent upon the characteristics and composition of the ionosphere of Mars. Data collected from the Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft has shed light on the current evolution of the Martian atmosphere by observing the evolving characteristics of the Martian upper atmosphere and ionosphere. This talk analyzes the factors that impact the composition of these atmospheric regions. First, the influence of solar forcing is discussed. The influences of solar variation are normalized in order to help analyze the impact of other atmospheric processes, including dust storms and atmospheric waves. Ionospheric impacts from the recent Planet Encircling Dust Event in 2018 as well as other regional dust storms in previous Martian years are shown and discussed in this talk.



                                                                                                                                                                                            Friday May 31, 2019



Room 6704 Geology

3:30 - 5:00 PM

In-Charge: C. T. Russell 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.igpp.ucla.edu/pipermail/everyone/attachments/20190530/5353eaa8/attachment.html>