Colloquium: Dr. Dan Dawson

Interactions between Microphysical and Dynamical Processes in Supercell Thunderstorms as Revealed through Observations and High-resolution Numerical Simulations


Dr. Dan Dawson
Assistant Professor
Purdue University

February 22, 2019 at 2 pm
EMS Building Room E495
3200 North Cramer Street
Milwaukee, WI

During the past few decades, two major developments in meteorology have revolutionized our understanding of supercell thunderstorms:
1) the advent of Doppler and polarimetric weather radar systems, and 2) the development of increasingly powerful computers and numerical modeling techniques capable of simulating the complex physical processes within these storms on ever more refined grids.
Microphysical processes in supercell storms exhibit extreme spatiotemporal variability and are challenging to observe and model. Yet numerous recent studies have shown that these processes are strongly linked to the dynamical and thermodynamical behavior of these storms. In view of these links, this talk will focus on recent progress in understanding supercell behavior from a numerical simulation perspective using cutting-edge microphysics schemes informed by polarimetric radar and disdrometer observations.
Finally, I will discuss prospects for improving short-range high-resolution numerical prediction of supercells and associated hazards, and potential future avenues of collaboration with researchers at UWM.

Click here to see the colloquium flyer