M. Alisa Mast
Alisa is an hydrologist for the Colorado Water Science Center
Science and Products
Filter Total Items: 70
Selected achievements, science directions, and new opportunities for the WEBB small watershed research program
Over nearly two decades, the Water, Energy, and Biogeochemical Budgets (WEBB) small watershed research program of the U.S. Geological Survey (USGS) has documented how water and solute fluxes, nutrient, carbon, and mercury dynamics, and weathering and sediment transport respond to natural and humancaused drivers, including climate, climate change, and atmospheric deposition. Together with a continu
Authors
Pierre D. Glynn, Matthew C. Larsen, Earl A. Greene, Heather L. Buss, David W. Clow, Randall J. Hunt, Alisa Mast, Sheila F. Murphy, Norman E. Peters, Stephen D. Sebestyen, James B. Shanley, John F. Walker
Comparison of Atmospheric Deposition Among Three Sites In and Near the Flat Tops Wilderness Area, Colorado, 2003-2005
Atmospheric deposition was monitored for ammonium, nitrate, and sulfate concentrations and precipitation amounts in the Flat Tops Wilderness Area of northwestern Colorado at Ned Wilson Lake beginning in 1984 to detect changes that might result from future emissions associated with development of oil-shale resources in northwestern Colorado. Renewed monitoring, by the U.S. Geological Survey, in coo
Authors
George P. Ingersoll, Donald H. Campbell, Alisa Mast
Hydrogeochemical investigation of the Standard Mine Vicinity, Upper Elk Creek Basin, Colorado
Ground- and surface-water samples were collected in the vicinity of the Standard Mine in west-central Colorado in order to characterize the local ground-water flow system, determine metal concentrations in local ground water, and better understand factors controlling the discharge of metal-rich waters from the mine. The sampling program included a one-time sampling of springs, mine adits, and expl
Authors
Andrew H. Manning, Philip L. Verplanck, Alisa Mast, Richard B. Wanty
Presentation Showing Results of a Hydrogeochemical Investigation of the Standard Mine Vicinity, Upper Elk Creek Basin, Colorado
PREFACE
This Open-File Report consists of a presentation given in Crested Butte, Colorado on December 13, 2007 to the Standard Mine Advisory Group. The presentation was paired with another presentation given by the Colorado Division of Reclamation, Mining, and Safety on the physical features and geology of the Standard Mine. The presentation in this Open-File Report summarizes the results and c
Authors
Andrew H. Manning, Philip L. Verplanck, Alisa Mast, Richard B. Wanty
Effects of 2003 wildfires on stream chemistry in Glacier National Park, Montana
Changes in stream chemistry were studied for 4 years following large wildfires that burned in Glacier National Park during the summer of 2003. Burned and unburned drainages were monitored from December 2003 through August 2007 for streamflow, major constituents, nutrients, and suspended sediment following the fires. Stream-water nitrate concentrations showed the greatest response to fire, increasi
Authors
Alisa Mast, David W. Clow
Assessment of Historical Water-Quality Data for National Park Units in the Rocky Mountain Network, Colorado and Montana, through 2004
This report summarizes historical water-quality data for six National Park units that compose the Rocky Mountain Network. The park units in Colorado are Florissant Fossil Beds National Monument, Great Sand Dunes National Park and Preserve, and Rocky Mountain National Park; and in Montana, they are Glacier National Park, Grant-Kohrs Ranch National Historic Site, and Little Bighorn Battlefield Natio
Authors
Alisa Mast
Selected water-quality data for the Standard Mine, Gunnison County, Colorado, 2006-2007
Mine drainage and underground water samples were collected for analysis of inorganic solutes as part of a 1-year, hydrogeologic investigation of the Standard Mine and vicinity. The U.S. Environmental Protection Agency has listed the Standard Mine in the Elk Creek drainage near Crested Butte, Colorado, as a Superfund Site because discharge from the Standard Mine enters Elk Creek, contributing disso
Authors
Philip L. Verplanck, Andrew H. Manning, Alisa Mast, Richard B. Wanty, R. Blaine McCleskey, Todor I. Todorov, Monique Adams
Rocky Mountain Snowpack Chemistry at Selected Sites, 2004
During spring 2004, the U.S. Geological Survey in cooperation with the National Park Service and the U.S. Department of Agriculture, Forest Service collected and analyzed snowpack samples for 65 sites in the Rocky Mountain region from New Mexico to Montana. Snowpacks were sampled from late February through early April and generally had well-below-average- to near-average snow-water equivalent. Reg
Authors
George P. Ingersoll, Alisa Mast, Leora Nanus, Heather H. Handran, David J. Manthorne, Douglas M. Hultstrand
Organochlorine compounds and current-use pesticides in snow and lake sediment in Rocky Mountain National Park, Colorado, and Glacier National Park, Montana, 2002-03
Organochlorine compounds and current-use pesticides were measured in snow and lake-sediment samples from Rocky Mountain National Park in Colorado and Glacier National Park in Montana to determine their occurrence and distribution in high-elevation aquatic ecosystems. The U.S. Geological Survey, in cooperation with the National Park Service, collected snow samples at eight sites in Rocky Mountain N
Authors
Alisa Mast, William T. Foreman, Serena V. Skaates
Rocky Mountain snowpack chemistry at selected sites, 2003
No abstract available.
Authors
George P. Ingersoll, Alisa Mast, Leora Nanus, David J. Manthorne, Heather H. Handran, Douglas M. Hulstrand, Jesse Winterringer
Effects of emission reductions at the Hayden powerplant on precipitation, snowpack, and surface-water chemistry in the Mount Zirkel Wilderness Area, Colorado, 1995-2003
Precipitation, snowpack, and surface-water samples collected during 1995-2003 were analyzed to evaluate the effects of emission reductions at the Hayden powerplant on water chemistry in the Mount Zirkel Wilderness Area. The Hayden powerplant, one of two large coal-fired powerplants in the Yampa Valley, was retrofitted with control systems during late 1998 and 1999 to reduce emissions of sulfur dio
Authors
Alisa Mast, Donald H. Campbell, George P. Ingersoll
The U.S. Geological Survey Hydrologic Benchmark Network
No abstract available.
Authors
Peter S. Murdoch, Michael R. McHale, Alisa Mast, David W. Clow
Science and Products
Filter Total Items: 70
Selected achievements, science directions, and new opportunities for the WEBB small watershed research program
Over nearly two decades, the Water, Energy, and Biogeochemical Budgets (WEBB) small watershed research program of the U.S. Geological Survey (USGS) has documented how water and solute fluxes, nutrient, carbon, and mercury dynamics, and weathering and sediment transport respond to natural and humancaused drivers, including climate, climate change, and atmospheric deposition. Together with a continu
Authors
Pierre D. Glynn, Matthew C. Larsen, Earl A. Greene, Heather L. Buss, David W. Clow, Randall J. Hunt, Alisa Mast, Sheila F. Murphy, Norman E. Peters, Stephen D. Sebestyen, James B. Shanley, John F. Walker
Comparison of Atmospheric Deposition Among Three Sites In and Near the Flat Tops Wilderness Area, Colorado, 2003-2005
Atmospheric deposition was monitored for ammonium, nitrate, and sulfate concentrations and precipitation amounts in the Flat Tops Wilderness Area of northwestern Colorado at Ned Wilson Lake beginning in 1984 to detect changes that might result from future emissions associated with development of oil-shale resources in northwestern Colorado. Renewed monitoring, by the U.S. Geological Survey, in coo
Authors
George P. Ingersoll, Donald H. Campbell, Alisa Mast
Hydrogeochemical investigation of the Standard Mine Vicinity, Upper Elk Creek Basin, Colorado
Ground- and surface-water samples were collected in the vicinity of the Standard Mine in west-central Colorado in order to characterize the local ground-water flow system, determine metal concentrations in local ground water, and better understand factors controlling the discharge of metal-rich waters from the mine. The sampling program included a one-time sampling of springs, mine adits, and expl
Authors
Andrew H. Manning, Philip L. Verplanck, Alisa Mast, Richard B. Wanty
Presentation Showing Results of a Hydrogeochemical Investigation of the Standard Mine Vicinity, Upper Elk Creek Basin, Colorado
PREFACE
This Open-File Report consists of a presentation given in Crested Butte, Colorado on December 13, 2007 to the Standard Mine Advisory Group. The presentation was paired with another presentation given by the Colorado Division of Reclamation, Mining, and Safety on the physical features and geology of the Standard Mine. The presentation in this Open-File Report summarizes the results and c
Authors
Andrew H. Manning, Philip L. Verplanck, Alisa Mast, Richard B. Wanty
Effects of 2003 wildfires on stream chemistry in Glacier National Park, Montana
Changes in stream chemistry were studied for 4 years following large wildfires that burned in Glacier National Park during the summer of 2003. Burned and unburned drainages were monitored from December 2003 through August 2007 for streamflow, major constituents, nutrients, and suspended sediment following the fires. Stream-water nitrate concentrations showed the greatest response to fire, increasi
Authors
Alisa Mast, David W. Clow
Assessment of Historical Water-Quality Data for National Park Units in the Rocky Mountain Network, Colorado and Montana, through 2004
This report summarizes historical water-quality data for six National Park units that compose the Rocky Mountain Network. The park units in Colorado are Florissant Fossil Beds National Monument, Great Sand Dunes National Park and Preserve, and Rocky Mountain National Park; and in Montana, they are Glacier National Park, Grant-Kohrs Ranch National Historic Site, and Little Bighorn Battlefield Natio
Authors
Alisa Mast
Selected water-quality data for the Standard Mine, Gunnison County, Colorado, 2006-2007
Mine drainage and underground water samples were collected for analysis of inorganic solutes as part of a 1-year, hydrogeologic investigation of the Standard Mine and vicinity. The U.S. Environmental Protection Agency has listed the Standard Mine in the Elk Creek drainage near Crested Butte, Colorado, as a Superfund Site because discharge from the Standard Mine enters Elk Creek, contributing disso
Authors
Philip L. Verplanck, Andrew H. Manning, Alisa Mast, Richard B. Wanty, R. Blaine McCleskey, Todor I. Todorov, Monique Adams
Rocky Mountain Snowpack Chemistry at Selected Sites, 2004
During spring 2004, the U.S. Geological Survey in cooperation with the National Park Service and the U.S. Department of Agriculture, Forest Service collected and analyzed snowpack samples for 65 sites in the Rocky Mountain region from New Mexico to Montana. Snowpacks were sampled from late February through early April and generally had well-below-average- to near-average snow-water equivalent. Reg
Authors
George P. Ingersoll, Alisa Mast, Leora Nanus, Heather H. Handran, David J. Manthorne, Douglas M. Hultstrand
Organochlorine compounds and current-use pesticides in snow and lake sediment in Rocky Mountain National Park, Colorado, and Glacier National Park, Montana, 2002-03
Organochlorine compounds and current-use pesticides were measured in snow and lake-sediment samples from Rocky Mountain National Park in Colorado and Glacier National Park in Montana to determine their occurrence and distribution in high-elevation aquatic ecosystems. The U.S. Geological Survey, in cooperation with the National Park Service, collected snow samples at eight sites in Rocky Mountain N
Authors
Alisa Mast, William T. Foreman, Serena V. Skaates
Rocky Mountain snowpack chemistry at selected sites, 2003
No abstract available.
Authors
George P. Ingersoll, Alisa Mast, Leora Nanus, David J. Manthorne, Heather H. Handran, Douglas M. Hulstrand, Jesse Winterringer
Effects of emission reductions at the Hayden powerplant on precipitation, snowpack, and surface-water chemistry in the Mount Zirkel Wilderness Area, Colorado, 1995-2003
Precipitation, snowpack, and surface-water samples collected during 1995-2003 were analyzed to evaluate the effects of emission reductions at the Hayden powerplant on water chemistry in the Mount Zirkel Wilderness Area. The Hayden powerplant, one of two large coal-fired powerplants in the Yampa Valley, was retrofitted with control systems during late 1998 and 1999 to reduce emissions of sulfur dio
Authors
Alisa Mast, Donald H. Campbell, George P. Ingersoll
The U.S. Geological Survey Hydrologic Benchmark Network
No abstract available.
Authors
Peter S. Murdoch, Michael R. McHale, Alisa Mast, David W. Clow