Brian J Soden1, William D Collins2,3, Daniel R Feldman2. 1. Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL 33149, USA. b.soden@miami.edu. 2. Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. 3. Department of Earth and Planetary Science, University of California at Berkeley, Berkeley, CA 94720, USA.