RESULTS: The calendar day of maximum runoff
is shown. Note it retreats nearly one month in the annual cycle in
the next 40-50 years. This is particularly true for rivers fed by snow
melt from intermediate elevations such as the Carson River. Rivers
fed by higher elevation snows (American River) show less impact.
Retreats of a few days to a week have been already observed relative to
1970 (not shown) over most of western N. America. The point is that
this retreat is already in progress.
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