[1] Duke Univ, Nicholas Sch Environm & Earth Sci, Div Earth & Ocean Sci, Durham, NC 27708 USA
[2] NOAA Natl Climat Data Ctr, Asheville, NC USA
[3] Univ Oxford, Dept Phys, Climate Dynam Grp, Oxford, England
[4] Univ Tasmania, CSIRO Marine Res, Hobart, Tas, Australia
[5] Univ Tasmania, Antarct Climate & Ecosyst Cooperat Res Ctr, Hobart, Tas, Australia
[6] Univ E Anglia, Climat Res Unit, Sch Environm Sci, Norwich, Norfolk, England
[7] Univ Oklahoma, Sch Meteorol, Norman, OK USA
[8] Meteorol Serv Canada, Climate Monitoring & Data Interpretat Div, Downsview, ON, Canada
[9] Meteorol Serv Canada, Canadian Ctr Climate Modelling & Anal, Victoria, BC, Canada