Changes in Snowmelt Runoff Timing in Western North America under a `Business as Usual' Climate Change Scenario

@article{Stewart2004ChangesIS,
  title={Changes in Snowmelt Runoff Timing in Western North America under a `Business as Usual' Climate Change Scenario},
  author={Iris T. Stewart and Daniel R. Cayan and Michael D. Dettinger},
  journal={Climatic Change},
  year={2004},
  volume={62},
  pages={217-232}
}
Spring snowmelt is the most important contribution of many rivers in western North America. If climate changes, this contribution may change. A shift in the timing of springtime snowmelt towards earlier in the year already is observed during 1948–2000 in many western rivers. Streamflow timingchanges for the 1995–2099 period are projected using regression relationsbetween observed streamflow-timing responses in each river, measured by the temporal centroid of streamflow (CT) each year, and local… 

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References

SHOWING 1-10 OF 23 REFERENCES
Variations in northern Sierra Nevada streamflow. Implications of climate change
ABSTRACT: Historical records of streamflow for an eastward- and a westward-draining stream in the northern Sierra Nevada have been analyzed for evidence of changes in runoff characteristics and
Changes toward Earlier Streamflow Timing across Western North America
Abstract The highly variable timing of streamflow in snowmelt-dominated basins across western North America is an important consequence, and indicator, of climate fluctuations. Changes in the timing
Large-Scale Atmospheric Forcing of Recent Trends toward Early Snowmelt Runoff in California
Abstract Since the late 1940s, snowmelt and runoff have come increasingly early in the water year in many basins in northern and central California. This subtle trend is most pronounced in
Simulated Hydrologic Responses to Climate Variations and Change in the Merced, Carson, and American River Basins, Sierra Nevada, California, 1900–2099
Hydrologic responses of river basins in the Sierra Nevada of California to historical and future climate variations and changes are assessed by simulating daily streamflow and water-balance responses
Climatic Fluctuations and the Timing of West Coast Streamflow
Abstract Since about 1950 there has been a trend in the California Sierra Nevada toward a decreasing portion of the total annual streamflow occurring during April through July, while the streamflow
Changes in the Onset of Spring in the Western United States
Abstract Fluctuations in spring climate in the western United States over the last 4–5 decades are described by examining changes in the blooming of plants and the timing of snowmelt–runoff pulses.
Mitigating the Effects of Climate Change on the Water Resources of the Columbia River Basin
The potential effects of climate change on the hydrology and water resources of the Columbia River Basin (CRB) were evaluated using simulations from the U.S. Department of Energy and National Center
Climates of the Twentieth and Twenty-First Centuries Simulated by the NCAR Climate System Model
The Climate System Model, a coupled global climate model without ‘‘flux adjustments’’ recently developed at the National Center for Atmospheric Research, was used to simulate the twentieth-century
Hydrologic Implications of Dynamical and Statistical Approaches to Downscaling Climate Model Outputs
Six approaches for downscaling climate model outputs for use in hydrologic simulation were evaluated, with particular emphasis on each method's ability to produce precipitation and other variables
A Long-Term Hydrologically Based Dataset of Land Surface Fluxes and States for the Conterminous United States*
Abstract A frequently encountered difficulty in assessing model-predicted land–atmosphere exchanges of moisture and energy is the absence of comprehensive observations to which model predictions can
...
1
2
3
...