Joseph Palmo, Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, Cambridge, United States, Arlene M Fiore, Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, Cambridge, United States, Qindan Zhu, Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, United States, Joshua Laughner, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, Colette L Heald, ETH Swiss Federal Institute of Technology Zurich, Department of Environmental Systems Science, Zurich, Switzerland and The FIREX-AQ Team