Martin Johann Wolf¹, Yue Zhang², Evelyn J Freney, Megan Goodell⁴, Tianqu Cui⁵, Margaux Winter⁶, Larissa Lacher⁷, Karine Sellegri⁸, Duncan Axisa⁹, Paul J DeMott¹⁰, Ezra JT Levin¹⁰, Ellen Gute¹¹, Jonathan Abbatt¹², Jason D Surratt¹³ and Daniel J Cziczo¹⁴, (1)Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States, (2)University of North Carolina at Chapel Hill, Department or Environmental Sciences and Engineering, Gillings School of Global Public Health, Chapel Hill, NC, United States, (3)Massachusetts Institute of Technology, Cambridge, United States, (4)University of North Carolina at Chapel Hill, Chapel Hill, NC, United States, (5)Harvard University, Cambridge, MA, United States, (6)Karlsruhe Institute of Technology, Karlsruhe, Germany, (7)Laboratoire de Météorologie Physique Observatoire de Physique du Globe de Clermont-Ferrand, Aubiere Cedex, France, (8)Droplet Measurement Technologies, Boulder, CO, United States, (9)Colorado State University, Atmospheric Science, Fort Collins, CO, United States, (10)University of Toronto, Chemistry Department, Toronto, ON, Canada, (11)University of Toronto, Toronto, ON, Canada, (12)UNC-Environment Sci & Eng, Chapel Hill, NC, United States, (13)MIT--EAPS, Cambridge, MA, United States