Published April 11, 2024
CAPTION: ULM Atmospheric Science students traveled to Cabot, Ark. to experience the totality
of the solar eclipse on April 8, 2024. Photo credit: Zach Hardcastle
MONROE, LA – ULM Associate Professor of Atmospheric Science Dr. Todd Murphy and students in the ULM Atmospheric Science program traveled to Cabot,
Ark., on Monday, April 8, to locate in the path of totality for an atmospheric boundary
layer experiment during the total solar eclipse. ULM was one of multiple atmospheric
science groups in the field on Monday within the path collecting measurements on how
the abrupt decrease in solar radiation would impact the lower part of the atmosphere
called the boundary layer.
Initially planning to locate in northeast Texas, cloud cover forecasts began to worry
the atmospheric scientists on Friday and Saturday. Student Zach Hardcastle offered
his family’s property in Cabot as a potential experiment site, given they were in
the path and cloud cover forecast across central Arkansas was more favorable. It ended
up being a great decision as the skies were mostly clear across Arkansas leading to
perfect eclipse viewing and excellent data collection.
Preliminary data analyses show an 8-10° temperature decrease during totality and a
decrease in surface winds. In addition, ULM’s National Science Foundation funded Doppler
wind LiDAR showed an abrupt collapse of the boundary layer circulations that are normally
present when the sun is out. The ULM students launched three weather balloons during
the event.
According to Dr. Murphy, “Experiencing totality was a top lifetime experience. It’s
hard to describe the feeling and view in the moments just before, as everything surrounding
you loses color saturation, and the air immediately cools with the decreasing sunlight.
I’m excited to dig into the data we collected.”
Atmospheric Science student Alec Soileau remarked “This eclipse was truly an awe-inspiring
event that is beyond words. One of the best events of my life.”
CAPTION: The group of Atmospheric Science students and Dr. Todd Murphy.
