National Research Program
Global warming affect on water quality and hydrology
Concerns that global warming is changing the water chemistry of the Yukon River by causing permafrost regions to melt, thereby transforming the frozen soil into biogeochemically active zones, led to a U.S. Geological Survey study of the Yukon River Basin. Study objectives were a) to establish a baseline describing the general water quality of the Yukon River and its major tributaries as a reference for measuring future changes and b) to examine the processes that affect or control the water quality of the Yukon River and its tributaries.
For additional information see the water-quality and sediment-quality data reports and the following cited references:For additional information see the following references:
Dornblaser, M. M., and Striegl R.G., 2007, Nutrient (N, P) loads and yields at multiple scales and subbasin types in the Yukon River basin, Alaska: Journal of Geophysical Research, doi:10.1029/2006JG000366. (564 kb, published 2007 by American Geophysical Union, not subject to U.S. copyright)
Striegl, R.G., Dornblaser, M.M., Aiken, G.R., Wickland, K.P., and Raymond, P.A., 2007, Carbon export and cycling by the Yukon, Tanana, and Porcupine Rivers, Alaska, 2001-2005, Water Resources Research v. 43, W02411, doi:10.1029/2006WR005201 (564 kb, published 2007 by American Geophysical Union, not subject to U.S. copyright).
Raymond, P. A., McClelland, J.W.,. Holmes, R.M., Zhulidov, A.V., Mull, K., Peterson, B.J., Striegl, R.G.,. Aiken, G.R., and Gurtovaya, T.Y., 2007, Flux and age of dissolved organic carbon exported to the Arctic Ocean: A carbon isotopic study of the five largest arctic rivers: Global Biogeochemical Cycles, v. 21, GB4011, doi:10.1029/2007GB002934.
Walvoord, M.A., and Striegl, R.G., 2007, Increased groundwater to stream discharge from permafrost thawing in the Yukon River basin: Potential impacts on lateral export of carbon and nitrogen: Geophysical Research Letters, v. 34, L12402, doi:10.1029/2007GL030216. (457 KB, published 2007 by American Geophysical Union, not subject to U.S. copyright)
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