1. Climate and Global Dynamics Laboratory National Center for Atmospheric Research Boulder CO USA
2. Atmospheric Chemistry Observations and Modelling Laboratory National Center for Atmospheric Research Boulder CO USA
3. Department of Earth and Atmospheric Sciences Indiana University Bloomington IN USA
4. Atmospheric Sciences and Global Change Division Pacific Northwest National Laboratory Richland WA USA
5. Mechanical and Aerospace Engineering Cornell University Ithaca NY USA
6. Department of Computing and Mathematical Sciences California Institute of Technology Pasadena CA USA