Alexandre Baron^1,2, Kate Smith^1,2, Elizabeth Asher^1,3, Parker Alexander Case^4,5, Peter Richard Colarco⁶, Emrys Hall³, Patrick Cullis⁷, Alex Fritz¹, Stephanie Evan⁸, Jerome F Brioude⁸, Jean-Marc Metzger⁹, Matthew Martinsen^1,10, Darryl Kuniyuki¹⁰, David Nardini¹⁰, Penny Smale¹¹, Ben Liley¹¹, Richard Querel¹¹ and Troy D Thornberry², (1)Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (2)NOAA Chemical Sciences Laboratory, Boulder, United States, (3)NOAA Global Monitoring Laboratory, Boulder, United States, (4)Earth System Science Interdisciplinary Center, College PARK, United States, (5)NASA Goddard Space Flight Center, Greenbelt, United States, (6)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (7)NOAA/ESRL Global Monitoring Laboratory, Boulder, United States, (8)CNRS / Université de La Réunion / Météo-France, Laboratoire de l'Atmosphere et des Cyclones (LACy), Saint-Denis, Reunion, (9)CNRS / Université de La Réunion / Météo-France, Observatoire des Sciences de l’Univers de La Réunion, Saint-Denis, Reunion, (10)NOAA Global Monitoring Laboratory, Hilo, United States, (11)New Zealand Institute for Earth Science Limited, Lauder, New Zealand