Abs：

The discovery of cloud microphysical responses to artificial ice nucleating particles by Schaefer and Vonnegut in the late 1940s set the stage for glaciogenic cloud seeding as a technology to increase water supplies especially in mountainous regions during wintertime. This talk provides a short review of the research related to wintertime glaciogenic cloud seeding under the background of aerosol-cloud-precipitation interactions at the beginning. Then, recent experiments and modeling progress that help to quantitatively assess glaciogenic seeding impacts on clouds and precipitation falling across a mountain watershed are introduced in detail. The recent modeling results of hygroscopic seeding effects on convective clouds and precipitation are discussed at the end of the talk.

Bio：

Lulin Xue is currently a Project Scientist III from NCAR (National Center for Atmospheric Research) in U.S., who has dedicated to fundamental and applied research on cloud dynamics and physics. He joined NCAR as an ASP postdoc in 2009 after receiving his PhD in meteorology from Saint Louis University. Dr. Xue is well known for his outstanding expertise in cloud seeding modeling in the weather modification community, with publications of around 100 journal articles. He has led and managed numerous projects in NCAR/RAL and organized various international conferences as well as AMS/AGU sessions. In particular, his groundbreaking work on the development of the NCAR cloud seeding modeling system and combining numerical simulations and observations to study cloud seeding impacts and aerosol-cloud-precipitation interactions has changed the norm and set a new research standard in the field of weather modification and cloud microphysics.