Paul W. Staten, Indiana University Bloomington, Earth and Atmospheric Sciences, Bloomington, IN, United States, Kevin M Grise, Lamont Doherty Earth Observatory, Pearl River, NY, United States, Sean M Davis, Chemical Sciences Division, NOAA Earth System Research Laboratory; Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, Kristopher B Karnauskas, Woods Hole Oceanographic Inst, Woods Hole, MA, United States and Nicholas Davis, National Center for Atmospheric Research, Boulder, United States