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Annual export of major and trace solutes are determined for the Yukon River based on summing 42 tributary contributions. First we show that annual discharge of the Yukon River can be computed by summing calculated annual discharges from 42 tributaries using a previously published regional regression equation. Next, annual loads for 11 solutes are determined by combining annual discharge with point measurements of solute concentrations in tributary river water. Based on the sum of tributary contributions we find that the Yukon River discharges approximately 211 km super(3) yr super(-1) of water and 33 million metric tons of dissolved solids each year at Pilot Station, AK. Disch arged solutes are dominated by cations...
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The Cook Inlet Basin study unit of the U.S. Geological Survey National Water-Quality Assessment Program comprises 39,325 square miles in south-central Alaska. Data were collected at eight fixed sites to provide baseline information in areas where no development has taken place, urbanization or logging have occurred, or the effects of recreation are increasing. Collection of water-quality, biology, and physical-habitat data began in October 1998 and ended in September 2001 (water years 1999-2001). The climate for the water years in the study may be categorized as slightly cool-wet (1999), slightly warm-wet (2000), and significantly warm-dry (2001). Total precipitation was near normal during the study period, and...
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We report chemical analyses of stream-water, stream-sediment, soil, soil-water, bedrock, and vegetation samples collected from the headwaters of the Delta River (Tangle Lakes District, Mount Hayes 1:250,000-scale quadrangle) in east-central Alaska for the period June 20-25, 2006. Additionally, we present mineralogic analyses of stream sediment, concentrated by panning. The study area includes the southwestward extent of the Bureau of Land Management (BLM) Delta River Mining District (Bittenbender and others, 2007), including parts of the Delta River Archeological District, and encompasses an area of about 500 km2(approximately bordered by the Denali Highway to the south, near Round Tangle Lake, northward to the...
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To test the response of the dry Kluane boreal forest ecosystem (Yukon, Canada) to increased rainfall as predicted from climate change scenarios I irrigated three 1.5 ha forest stands from 1995-1999, to double baseline summer rainfall levels. I tested if various biotic and abiotic components of this ecosystem would react to the reduction of the summer water deficit relative to three control stands. I predicted that in response to irrigation: (1) growth (or biomass) in some species of plants would increase, (2) red-backed voles would in turn increase in numbers with greater plant-food availability because they are food-limited herbivores, (3) mushroom biomass would increase, (4) decomposition would increase, and hence...
map background search result map search result map Ground-water quality in the Cook Inlet basin, Alaska, 1999 Effects of water addition on biotic and abiotic components of a dry boreal forest in the Yukon Predicting the extent of discontinuous permafrost and affiliated ground water aquifers Water Sources and Hydrodynamics of Closed-Basin Depressions, Cook Inlet Region, Alaska Annual estimates of water and solute export from 42 tributaries to the Yukon River A semi-automated tool for surface water mapping with RADARSAT-1 Protocol to Assess the Vulnderability of Northern Water and Wastewater Systems to Climate Change Impacts Water and solute export from the Yukon River and its tributaries Arsenic speciation and mobility in surface water at Lucky Shot Gold Mine, Alaska Water Quality, Biological, and Physical Habitat Conditions at Fixed Sites in the Cook Inlet Basin, Alaska, National Water Quality Assessment Study Unit, October 1998-September 2001 Water resources and channel geometry of Birch Creek National Wild River, Alaska Assessment and Classification of Matanuska‐Susitna Fish Habitat—Stream Water Temperature Water flow dynamics of groundwater-fed streams and their ecological significance in glacierized catchment The role of permafrost in water exchange of a black spruce forest in Interior Alaska Water balance dynamics of three small catchments in a sub-arctic boreal forest Water Resources Stewardship Report, Denali National Park and Preserve Regional Geochemical Results from Analyses of Stream-Water, Stream-Sediment, Soil, Soil-Water, Bedrock, and Vegetation Samples, Tangle Lakes District, Alaska. Prepared in cooperation with Alaska Department of Natural Resources Determining Canadian water utility preparedness for the impacts of climate change Closure Water Conveyance System Design Update Report, Minto Mine Predicting the extent of discontinuous permafrost and affiliated ground water aquifers Closure Water Conveyance System Design Update Report, Minto Mine Arsenic speciation and mobility in surface water at Lucky Shot Gold Mine, Alaska Regional Geochemical Results from Analyses of Stream-Water, Stream-Sediment, Soil, Soil-Water, Bedrock, and Vegetation Samples, Tangle Lakes District, Alaska. Prepared in cooperation with Alaska Department of Natural Resources A semi-automated tool for surface water mapping with RADARSAT-1 The role of permafrost in water exchange of a black spruce forest in Interior Alaska Water resources and channel geometry of Birch Creek National Wild River, Alaska Water Sources and Hydrodynamics of Closed-Basin Depressions, Cook Inlet Region, Alaska Effects of water addition on biotic and abiotic components of a dry boreal forest in the Yukon Assessment and Classification of Matanuska‐Susitna Fish Habitat—Stream Water Temperature Water balance dynamics of three small catchments in a sub-arctic boreal forest Water flow dynamics of groundwater-fed streams and their ecological significance in glacierized catchment Water Resources Stewardship Report, Denali National Park and Preserve Ground-water quality in the Cook Inlet basin, Alaska, 1999 Water Quality, Biological, and Physical Habitat Conditions at Fixed Sites in the Cook Inlet Basin, Alaska, National Water Quality Assessment Study Unit, October 1998-September 2001 Water and solute export from the Yukon River and its tributaries Annual estimates of water and solute export from 42 tributaries to the Yukon River Protocol to Assess the Vulnderability of Northern Water and Wastewater Systems to Climate Change Impacts Determining Canadian water utility preparedness for the impacts of climate change