[1] Stanford Univ, Dept Environm Earth Syst Sci, Stanford, CA 94305 USA
[2] Stanford Univ, Woods Inst Environm, Stanford, CA 94305 USA
[3] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, 4600 Rickenbacker Causeway, Miami, FL 33149 USA
[4] Univ Texas Austin, Dept Geol Sci, Austin, TX USA
[5] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA
[6] Univ Michigan, Earth & Environm Sci, Ann Arbor, MI 48109 USA
[7] NOAA, Pacific Marine Environm Lab, 7600 Sand Point Way Ne, Seattle, WA 98115 USA
[8] Univ Illinois, Dept Earth & Environm Sci, Chicago, IL USA
[9] Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT, Australia
[10] Max Planck Inst Meteorol, Hamburg, Germany
[11] GFZ German Res Ctr Geosci, Helmholtz Ctr Potsdam, Potsdam, Germany
[12] Natl Ctr Atmospher Res, High Altitude Observ, Pob 3000, Boulder, CO 80307 USA
[13] Univ Calif Los Angeles, Dept Earth Syst Sci, Los Angeles, CA USA
[14] Boston Univ, Dept Astron, 725 Commonwealth Ave, Boston, MA 02215 USA
[15] Univ Michigan, Dept Geol Sci, 1006 CC Little Bldg, Ann Arbor, MI 48109 USA
[16] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA
[17] Univ Colorado, Natl Snow & Ice Data Ctr, Boulder, CO 80309 USA
[18] Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA
[19] Univ Reading, Dept Meteorol, Reading, Berks, England
[20] Univ Calgary, Phys & Astron, Calgary, AB, Canada