1. Department of Physics and Atmospheric Science; Dalhousie University; Halifax Nova Scotia Canada
2. Harvard-Smithsonian Center for Astrophysics; Cambridge Massachusetts USA
3. RT Solutions Inc.; Cambridge Massachusetts USA
4. National Renewable Energy Laboratory; Golden Colorado USA
5. JCET; University of Maryland; Baltimore Maryland USA
6. Science Systems and Applications; Inc. Lanham; Greenbelt Maryland USA
7. Earth Science Division; NASA Goddard Space Flight Center; Greenbelt Maryland USA
8. Department of Earth and Atmospheric Sciences; University of Nebraska-Lincoln; Lincoln Nebraska USA