1. Department of Civil and Environmental Engineering; Massachusetts Institute of Technology; Cambridge Massachusetts USA
2. Department of Earth, Atmospheric, and Planetary Science; Massachusetts Institute of Technology; Cambridge Massachusetts USA
3. Mauna Loa Observatory; NOAA; Hilo Hawaii USA
4. V.E. Zuev Institute of Atmospheric Optics, Siberian Branch; Russian Academy of Sciences; Tomsk Russia
5. Department of Atmospheric Sciences; University of Wyoming; Laramie Wyoming USA
6. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research; Bremerhaven Germany
7. Meteorological Research Institute; Tsukuba Ibaraki Japan
8. Advanced Study Program; National Center for Atmospheric Research; Boulder Colorado USA
9. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research; Potsdam Germany
10. Program for Climate Model Diagnosis and Intercomparison; Lawrence Livermore National Laboratory; Livermore California USA
11. The Earth Institute; Columbia University; New York New York USA
12. School of Earth and Environment; University of Leeds; Leeds UK
13. Science Systems and Applications, Inc.; Hampton Virginia USA
14. NASA Langley Research Center; Hampton Virginia USA