Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Robert L. Michel"'
Autor:
Pradeep K. Aggarwal, Tuerker Kurttas, Brent D. Newman, Tomas Vitvar, Luis Araguas-Araguas, Robert L. Michel
Publikováno v:
Hydrological Processes. 29:572-578
Tritium concentrations in river and stream waters from different locations can be compared by normalizing them using the ratio of tritium concentrations in precipitation and surface water (Cp/Cs) in the study area. This study uses these ratios in a h
Autor:
Robert L. Michel, John Karl Böhlke
Publikováno v:
Science of The Total Environment. 407:4363-4377
Watershed mass balances for solutes of atmospheric origin may be complicated by the residence times of water and solutes at various time scales. In two small forested headwater catchments in the Appalachian Mountains of Virginia, USA, mean annual exp
Autor:
Stephen W. Wheatcraft, Brian J. Andraski, Robert L. Michel, Clay A. Cooper, Michael J. Johnson, David A. Stonestrom, C. A. Garcia
Publikováno v:
Vadose Zone Journal. 8:450-461
Soil–plant–atmosphere interactions strongly influence water movement in desert unsaturated zones, but little is known about how such interactions affect atmospheric release of subsurface water-borne contaminants. This 2-yr study, performed at the
Autor:
Stephen W. Wheatcraft, Brian J. Andraski, Clay A. Cooper, Charles J. Mayers, David A. Stonestrom, Robert L. Michel
Publikováno v:
Vadose Zone Journal. 4:967-976
Understanding transport of tritium ( 3 H) in unsaturated zones is critical to evaluating options for waste isolation. Tritium typically is a large component of low-level radioactive waste (LLRW). Studies at the U.S. Geological Survey9s Amargosa Deser
Autor:
Robert L. Michel, Bernhard Mayer, James B. Shanley, Scott W. Bailey, Myron J. Mitchell, Carol Kendall
Publikováno v:
Biogeochemistry. 76:161-185
The biogeochemical cycling of sulfur (S) was studied during the 2000 snowmelt at Sleepers River Research Watershed in northeastern Vermont, USA using a hydrochemical and multi-isotope approach. The snowpack and 10 streams of varying size and land use
Publikováno v:
Vadose Zone Journal. 4:819-827
Plant-based techniques were tested for field-scale evaluation of tritium contamination adjacent to a low-level radioactive waste (LLRW) facility in the Amargosa Desert, Nevada. Objectives were to (i) characterize and map the spatial variability of tr
Publikováno v:
Water, Air, & Soil Pollution: Focus. 4:517-529
Publikováno v:
Hydrogeology Journal. 10:409-427
Previous studies indicate that a small quantity of recharge occurs from infiltration of streamflow in intermittent streams in the upper Mojave River basin, in the western Mojave Desert, near Victorville, California. Chloride, tritium, and stable isot
Publikováno v:
Water, Air and Soil Pollution: Focus. 2:5-18
Measurements of the cosmogenically-produced 35S, a radioisotope of sulphur (t1/2 = 87 days), are reported for the Ned Wilson Lake watershed in Colorado. The watershed contains two small lakes and a flowing spring presumed to be representative of loca
Publikováno v:
Water Resources Research. 36:27-36
Sulphur 35, a cosmogenically produced radioisotope with a short half-life (87 days), was measured in snowpack during 1993–1997 and at four locations within the Loch Vale watershed during 1995–1997. The four sites include the two main drainages in