Mohammad Salem, a doctoral student in the Department of Physics and Space Sciences, earned second place in the student paper competition at the 2016 National Radio Science Meeting in Boulder, Colorado, in January. Sponsored by the U.S National Committee of the International Union of Radio Science, the award included a certificate and $750 prize.
Salem’s paper, “Modification of the Lower Ionospheric Conductivity by Thunderstorm Electrostatic Fields,’’ examined the coupling between a thunderstorm and the overhead region of the ionosphere known as the D region, spanning 40 to 90 km in altitude. His study found that the electrostatic field produced by a thunderstorm can significantly change electrical properties of this region.
The paper was co-authored by Salem’s advisor, Ningyu Liu, associate professor in the Department of Physics and Space Sciences, and co-advisor Hamid Rassoul, dean of the
College of Science.