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Figure : observed-shifts-in-streamflow-timing
Observed Shifts in Streamflow Timing
This figure appears in chapter 21 of the Climate Change Impacts in the United States: The Third National Climate Assessment report.
Reduced June flows in many Northwest snow-fed rivers is a signature of warming in basins that have a significant snowmelt contribution. The fraction of annual flow occurring in June increased slightly in rain-dominated coastal basins and decreased in mixed rain-snow basins and snowmelt-dominated basins over the period 1948 to 2008.cc98a8b5-74b3-4df2-8961-7799768da2ed The high flow period is in June for most Northwest river basins; decreases in summer flows can make it more difficult to meet a variety of competing human and natural demands for water. (Figure source: adapted from Fritze et al. 2011cc98a8b5-74b3-4df2-8961-7799768da2ed).
When citing this figure, please reference adapted from Fritze et al. 2011cc98a8b5-74b3-4df2-8961-7799768da2ed.
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This figure was created on October 28, 2012.
ProvenanceThis figure was derived from Shifts in Western North American Snowmelt Runoff Regimes for the Recent Warm Decades
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