1. Jet Propulsion Laboratory California Institute of Technology Pasadena CA USA
2. Division of Geological and Planetary Sciences California Institute of Technology Pasadena CA USA
3. Joint Institute for Regional Earth System Science and Engineering University of California, Los Angeles Los Angeles CA USA
4. Laboratory of Atmospheric Chemistry and Dynamics NASA Goddard Space Flight Center Greenbelt MD USA
5. National Institute of Water and Atmospheric Research Ltd. (NIWA) Lauder New Zealand
6. Centre for Atmospheric Chemistry School of Earth, Atmospheric and Life Sciences University of Wollongong Wollongong NSW Australia
7. Deutscher Wetterdienst German Meteorological Service Meteorological Observatory Hohenpeissenberg Germany