William J. Wolfe
United States Geological Survey
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by William J. Wolfe.
Physical Geography | 2006
Allen C. Gellis; Richard M. T. Webb; Sherwood C. McIntyre; William J. Wolfe
Lago Loíza impounded in 1953 to supply San Juan, Puerto Rico, with drinking water; by 1994, it had lost 47% of its capacity. To characterize sedimentation in Lago Loíza, a study combining land-use history, hillslope erosion rates, and subbasin sediment yields was conducted. Sedimentation rates during the early part of the reservoirs operation (1953-1963) were slightly higher than the rates during 1964-1990. In the early history of the reservoir, cropland comprised 48% of the basin and erosion rates were high. Following economic shifts during the 1960s, cropland was abandoned and replaced by forest, which increased from 7.6% in 1950 to 20.6% in 1987. These land-use changes follow a pattern similar to the northeastern United States. Population in the Lago Loíza Basin increased 77% from 1950 to 1990, and housing units increased 194%. Sheetwash erosion measured from 1991 to 1993 showed construction sites had the highest sediment concentration (61,400 ppm), followed by cropland (47,400 ppm), pasture (3510 ppm), and forest (2050 ppm). This study illustrates how a variety of tools and approaches can be used to understand the complex interaction between land use, upland erosion, fluvial sediment transport and storage, and reservoir sedimentation.
River Research and Applications | 2013
Jennifer C. Murphy; Rodney R. Knight; William J. Wolfe; W. S. Gain
Ecohydrology | 2012
Rodney R. Knight; W. Scott Gain; William J. Wolfe
Water | 2015
Marc J. P. Vis; Rodney R. Knight; Sandra Pool; William J. Wolfe; Jan Seibert
Ecohydrology | 2013
Rodney R. Knight; Jennifer C. Murphy; William J. Wolfe; Charles F. Saylor; Amy K. Wales
Journal of The American Water Resources Association | 2010
Timothy H. Diehl; William J. Wolfe
Ground Water Monitoring and Remediation | 2006
Shannon D. Williams; William J. Wolfe; James J. Farmer
Journal of The American Water Resources Association | 2014
Carl E. Zipper; Braven Beaty; Gregory C. Johnson; Jess W. Jones; Jennifer L. Krstolic; Brett J.K. Ostby; William J. Wolfe; Patricia F. Donovan
Ground Water Monitoring and Remediation | 2002
William J. Wolfe; Shannon D. Williams
Water-Resources Investigations Report | 1999
Allen C. Gellis; R.M. Webb; William J. Wolfe; S.C. McIntyre