Kuo-Nan Liou is a Distinguished Professor of Atmospheric Sciences and founding director of the Joint Institute for Regional-Earth-System Science and Engineering at the University of California, Los Angeles. Dr. Liou has received numerous awards including the 1998 Jule G. Charney Medal from the American Meteorological Society for his work in the theory and application of radiative transport and its interaction with clouds, the 2010 COSPAR Biennial William Nordberg Medal for outstanding contributions to the application of space science, the 2012 International Radiation Commission Quadrennial Gold Medal for contributions of the lasting significance to the field of radiation research, the 2013 Roger Revelle Medal from the American Geophysical Union for outstanding contributions in atmospheric and climate sciences, and the 2018 AMS Carl-Gustaf Rossby Research Medal for international leadership and seminal contributions to improving the theory and application of atmospheric radiative transfer and its interactions with clouds and aerosols.