Interviewing a MAARBLE Scientist – August 2014

Who is Who

usanovaDr. Maria Usanova is a research scientist at the Laboratory for Atmospheric and Space Physics, University of Colorado at Boulder. She is working in the area of magnetospheric and radiation belt physics, analyzing data from multiple satellite missions, including Cluster, THEMIS, and the Van Allen Probes. Maria graduated with honors from the Department of Physics, Moscow State University (Russia) and got her PhD in space physics from the University of Alberta (Canada). She has been studying the dynamics of energetic particles in the Earth’s radiation belts and ring current and their interaction with plasma waves. In her free time she enjoys taking road trips, hiking, kayaking, skiing, art shows, photography, and live music.


I’ve always had a fascination with space science and technology. It started when I was a kid with watching sci-fi cartoons and Soviet movies about space exploration, continued later with a vivid interest in science fiction, and I ultimately found myself at the physics department of Moscow State University.

Math was one of my favorite subjects at school - I really enjoyed solving geometry puzzles and was “naturally” good at it. However, physics turned out to be much more challenging and it took a lot of courage, self-discipline and motivation to first get into this traditionally male-dominated field and to not give up no matter what, until my graduation.

solarisAndrei Tarkovsky's “Solaris” is one of my favorite sci-fi movies

The Sky is Not the Limit

For my first space-related science project, I analyzed data form the MIR space station during its passes above major regions of thunderstorm activity (at ~350 km altitude) and examined the possibility of cold fusion in lighting bolts and resulting production of neutrons that can be detected onboard the station.
Later, during my PhD project, I “switched” to regions further away from the Earth (up to tens of thousands kilometers), called the radiation belts, that consist of energetic charged particles and can pose danger to both satellites and astronauts working on orbit.

I am interested in the dynamics of the radiation belt particles, their interaction with plasma waves and processes responsible for their loss and “precipitation” into the atmosphere. Understanding of these processes should augment our knowledge of space radiation environment and ability to build space weather prediction models, and improve radiation safety for future manned space missions.
Overall, over my research career I was lucky enough to get experience in data analysis, computer simulations, and working with hardware – from building and testing scientific instrumentation to using in-situ data for numerical modeling on a supercomputer.


 VAP launch

The Van Allen Probes launch. This mission is designed to study the Earth radiation belts and discovered an unusual and previously unknown three-belt configuration
(Credit: Mike Killian).

My advice to young scientists is: don’t get discouraged easily, maintain a positive attitude, be flexible in life and be open to changes and new opportunities. Be prepared to change cities and move between countries, learn from different people, try various working styles, and don’t be afraid of new challenges. Of course talent and motivation are important! On top of that, in your early career it is very important to find a great supervisor who would get you excited about your research project and provide guidance and support when needed. Then the sky is not the limit!


 VHFradar

Walking down the VHF radar in Tromsø, Norway. The radar has been operating since 1985 and used to study the upper atmosphere (Credit: Colin Forsyth).

 

About MAARBLE

For MAARBLE, I analyzed ground and satellite magnetometer data in conjunction with energetic particle measurements and looked at signatures of energetic particle loss due to interaction with electromagnetic plasma waves. I also participated in building a plasma wave database, which will be available for the whole space science community and future generation of scientists. It has been a valuable learning experience for me to work in the international group of scientists where every group member brings and shares their unique knowledge and expertise. I am happy I have contributed to this project and believe that it will lead to better understanding of the variability and behavior of the near-Earth radiation environment.


Eleni Chatzichristou

MAARBLE Outreach Team


ESA’s Swarm mission will unravel one of the most mysterious aspects of our planet: the magnetic field.