Physics
Scientific paper
Jan 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3302707m&link_type=abstract
Geophysical Research Letters, Volume 33, Issue 2, CiteID L02707
Physics
Global Change: Impacts Of Global Change (1225), Global Change: Regional Climate Change, Hydrology: Climate Impacts, Hydrology: Hydroclimatology
Scientific paper
Some El Niño events produce unusually large precipitation amounts in Northern and Central California. We use a high-resolution global model of the atmosphere coupled to a physically-based model of surface hydrology to investigate effects of increased atmospheric CO2 and this type of El Niño, both individually and in combination, on monthly river flows in California. Increased CO2 changes the seasonal timing of river flows and increases their variability. SST anomalies typical of a strong El Niño SST increase monthly-mean flows. The two perturbations together result in increased mean flows and increased variability, raising the possibility of both increased flood risk and water shortages. The river flow response to this strong El Niño in an increased CO2 climate is significantly different from the sum of the responses to the individual perturbations.
Duffy Philip B.
Gibbard Seran
Maurer Edwin P.
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