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Figure : streamflow
Historical Changes in the Timing of Snowmelt-Related Streamflow
Figure 18.2U.S. Geological Survey
Glenn A. Hodgkins
This figure appears in chapter 18 of the Impacts, Risks, and Adaptation in the United States: The Fourth National Climate Assessment, Volume II report.
This map of part of the Northeast region shows consistently earlier snowmelt-related streamflow timing for rivers from 1960 to 2014. Each symbol represents the change for an individual river over the entire period. Changes in the timing of snowmelt potentially interfere with the reproduction of many aquatic speciesb13ae849-e3b5-4f06-87f8-38dcfe0e7d65 and impact water-supply reservoir management because of higher winter flows and lower spring flows.10990ae9-39d0-462d-8357-a39a689d90b2 The timing of snowmelt-related streamflow in the Northeast is sensitive to small changes in air temperature. The average winter–spring air temperature increase of 1.67°F in the Northeast from 1940 to 2014 is thought to be the cause of average earlier streamflow timing of 7.7 days.f9dc4907-65ae-4582-a285-29b5d4732a9f The timing of snowmelt-related streamflow is a valuable long-term indicator of winter–spring changes in the Northeast. Source: adapted from Dudley et al. 2017;f9dc4907-65ae-4582-a285-29b5d4732a9f Digital Elevation Model CGIAR–CSI (CGIAR Consortium for Spatial Information). Reprinted with permission from Elsevier.
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This figure was created on August 18, 2017.
This figure was submitted on December 03, 2018.
- Watershed-Scale Response to Climate Change through the Twenty-First Century for Selected Basins across the United States (10990ae9)
- Aquatic Ecosystems & Global Climate Change: Potential Impacts on Inland Freshwater and Coastal Wetland Ecosystems in the United States (b13ae849)
- Trends in snowmelt-related streamflow timing in the conterminous United States (f9dc4907)
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