Liye Zhu, Sun Yat-Sen University, Guangzhou, China, Dilhara Ranasinghe, University of California Los Angeles, atmospheric and oceanic sciences, Los Angeles, CA, United States, Marcelo Chamecki, University of California Los Angeles, Los Angeles, CA, United States, Michael William Brown, Los Alamos National Laboratory, Los Alamos, NM, United States and Suzanne E Paulson, UCLA, Los Angeles, CA, United States