David W Clow (Former Employee)
Science and Products
Filter Total Items: 72
Chemistry of selected high-elevation lakes in seven national parks in the western United States Chemistry of selected high-elevation lakes in seven national parks in the western United States
A chemical survey of 69 high-altitude lakes in seven national parks in the western United States was conducted during the fallof 1999; the lakes were previously sampled during the fall of 1985, as part of the Western Lake Survey. Lakes in parks in the Sierra/southern Cascades (Lassen Volcanic, Yosemite, Sequoia/Kings Canyon National Parks) and in the southern RockyMountains (Rocky...
Authors
David W. Clow, Robert G. Striegl, Leora Nanus, M. Alisa Mast, Donald H. Campbell, David P. Krabbenhoft
Mercury loading and methylmercury production and cycling in high-altitude lakes from the Western United States Mercury loading and methylmercury production and cycling in high-altitude lakes from the Western United States
Studies worldwide have shown that mercury (Hg) is a ubiquitous contaminant, reaching even the most remote environments such as high-altitude lakes via atmospheric pathways. However, very few studies have been conducted to assess Hg contamination levels of these systems. We sampled 90 mid-latitude, high-altitude lakes from seven national parks in the western United States during a four...
Authors
David P. Krabbenhoft, Mark L. Olson, John F. DeWild, David W. Clow, Robert G. Striegl, Mark M. Dornblaser, Peter C. Van Metre
Comparison of snowpack and winter wet-deposition chemistry in the Rocky Mountains, USA: Implications for winter dry deposition Comparison of snowpack and winter wet-deposition chemistry in the Rocky Mountains, USA: Implications for winter dry deposition
Depth-integrated snowpack chemistry was measured just prior to maximum snowpack depth during the winters of 1992-1999 at 12 sites co-located with National Atmospheric Deposition Program/National Trend Network (NADP/NTN) sites in the central and southern Rocky Mountains, USA. Winter volume-weighted mean wet-deposition concentrations were calculated for the NADP/NTN sites, and the data...
Authors
David W. Clow, George P. Ingersoll, M. Alisa Mast, John T. Turk, Donald H. Campbell
Environmental characteristics and water quality of hydrologic benchmark network stations in the western United States, 1963-95 Environmental characteristics and water quality of hydrologic benchmark network stations in the western United States, 1963-95
This report describes the environmental characteristics and water-quality characteristics of 12 hydrologic benchmark network streams in the Western United States. This information was compiled to aide in the interpretation and application of water-quality data collected as part of the Hydrologic Benchmark Network Program.
Authors
M. Alisa Mast, David W. Clow
Relations between basin characteristics and stream water chemistry in alpine/subalpine basins in Rocky Mountain National Park, Colorado Relations between basin characteristics and stream water chemistry in alpine/subalpine basins in Rocky Mountain National Park, Colorado
Relations between stream water chemistry and topographic, vegetative, and geologic characteristics of basins were evaluated for nine alpine/subalpine basins in Rocky Mountain National Park, Colorado, to identify controlling parameters and to better understand processes governing patterns in stream water chemistry. Fractional amounts of steep slopes (≥30°), unvegetated terrain, and young...
Authors
David W. Clow, Julie K. Sueker
Timescales for migration of atmospherically derived sulphate through an alpine/subalpine watershed, Loch Vale, Colorado Timescales for migration of atmospherically derived sulphate through an alpine/subalpine watershed, Loch Vale, Colorado
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 the watershed, Andrews Creek and Icy Brook, a small south facing catchment flowing into Andrews Creek (Andrews Spring 1), and a similar north...
Authors
Robert L. Michel, Donald H. Campbell, David W. Clow, John T. Turk
Science and Products
Filter Total Items: 72
Chemistry of selected high-elevation lakes in seven national parks in the western United States Chemistry of selected high-elevation lakes in seven national parks in the western United States
A chemical survey of 69 high-altitude lakes in seven national parks in the western United States was conducted during the fallof 1999; the lakes were previously sampled during the fall of 1985, as part of the Western Lake Survey. Lakes in parks in the Sierra/southern Cascades (Lassen Volcanic, Yosemite, Sequoia/Kings Canyon National Parks) and in the southern RockyMountains (Rocky...
Authors
David W. Clow, Robert G. Striegl, Leora Nanus, M. Alisa Mast, Donald H. Campbell, David P. Krabbenhoft
Mercury loading and methylmercury production and cycling in high-altitude lakes from the Western United States Mercury loading and methylmercury production and cycling in high-altitude lakes from the Western United States
Studies worldwide have shown that mercury (Hg) is a ubiquitous contaminant, reaching even the most remote environments such as high-altitude lakes via atmospheric pathways. However, very few studies have been conducted to assess Hg contamination levels of these systems. We sampled 90 mid-latitude, high-altitude lakes from seven national parks in the western United States during a four...
Authors
David P. Krabbenhoft, Mark L. Olson, John F. DeWild, David W. Clow, Robert G. Striegl, Mark M. Dornblaser, Peter C. Van Metre
Comparison of snowpack and winter wet-deposition chemistry in the Rocky Mountains, USA: Implications for winter dry deposition Comparison of snowpack and winter wet-deposition chemistry in the Rocky Mountains, USA: Implications for winter dry deposition
Depth-integrated snowpack chemistry was measured just prior to maximum snowpack depth during the winters of 1992-1999 at 12 sites co-located with National Atmospheric Deposition Program/National Trend Network (NADP/NTN) sites in the central and southern Rocky Mountains, USA. Winter volume-weighted mean wet-deposition concentrations were calculated for the NADP/NTN sites, and the data...
Authors
David W. Clow, George P. Ingersoll, M. Alisa Mast, John T. Turk, Donald H. Campbell
Environmental characteristics and water quality of hydrologic benchmark network stations in the western United States, 1963-95 Environmental characteristics and water quality of hydrologic benchmark network stations in the western United States, 1963-95
This report describes the environmental characteristics and water-quality characteristics of 12 hydrologic benchmark network streams in the Western United States. This information was compiled to aide in the interpretation and application of water-quality data collected as part of the Hydrologic Benchmark Network Program.
Authors
M. Alisa Mast, David W. Clow
Relations between basin characteristics and stream water chemistry in alpine/subalpine basins in Rocky Mountain National Park, Colorado Relations between basin characteristics and stream water chemistry in alpine/subalpine basins in Rocky Mountain National Park, Colorado
Relations between stream water chemistry and topographic, vegetative, and geologic characteristics of basins were evaluated for nine alpine/subalpine basins in Rocky Mountain National Park, Colorado, to identify controlling parameters and to better understand processes governing patterns in stream water chemistry. Fractional amounts of steep slopes (≥30°), unvegetated terrain, and young...
Authors
David W. Clow, Julie K. Sueker
Timescales for migration of atmospherically derived sulphate through an alpine/subalpine watershed, Loch Vale, Colorado Timescales for migration of atmospherically derived sulphate through an alpine/subalpine watershed, Loch Vale, Colorado
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 the watershed, Andrews Creek and Icy Brook, a small south facing catchment flowing into Andrews Creek (Andrews Spring 1), and a similar north...
Authors
Robert L. Michel, Donald H. Campbell, David W. Clow, John T. Turk