Sigrid Smith assisted in the field work and editing. River discharge data were taken from the USGS water resources Web site. Chris Daly allowed us to use his PRISM fields for Oregon. Glen Hess advised us on streamflow data. Advice from Jeff Albert, Peter Raymond, and Brian Colle is appreciated. ERA-40 data is product of the ECMWF. The research is supported by the National Science Foundation, Division of Atmospheric Sciences (ATM-0112354) and by NASA IDS Grant NAG5-9316.
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