Prof. Nesbitt leads a research group in the Department of Atmospheric Sciences, where his research and teaching interests reside in observations and modeling of clouds and precipitation processes across the globe. He has participated in more than 20 field campaigns on 4 continents, and was the lead Principal Investigator of the NSF/NOAA/NASA RELAMPAGO (Remote sensing of Electrification, Lightning, And Mesoscale/microscale Processes with Adaptive Ground Observations) and Co-PI of the DOE Clouds, Aerosols, and Complex Terrain Interactions (CACTI) field campaign in Argentina and Brazil in 2018-19. He serves as a member of the American Meteorological Society Committee on Mesoscale Processes and the scientific planning team for the planned NASA Aerosols Clouds Convection Precipitation mission. He is a member of the University Senate, and a faculty affiliate of the Computational Science and Engineering program.