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This article provides a method for examining mesoscale water quality objectives downstream of dams with anticipated climate change using a multimodel approach. Coldwater habitat for species such as trout and salmon has been reduced by water...
2013-01-01
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Distributed Temperature Sensing (DTS) technology can collect abundant high resolution river temperature data over space and time to improve development and performance of modeled river temperatures. These data can also identify and quantify...
2013-01-01
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Water year indices and drought indices are helpful for categorizing water years into similar types, allowing water managers and policymakers to quantify years, visualize variability, and guide water operations. Many water management decisions,...
2013-01-01
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Water temperature influences the distribution, abundance, and health of aquatic organisms in stream ecosystems, so understanding the impacts of climate warming on stream temperature will help guide management and restoration. This study assesses...
2013-01-01
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Warm stream temperature and low flow conditions are limiting factors for native trout species in Nevada's Walker River. Water rights purchases are being considered to increase instream flow and improve habitat conditions. However, the effect of...
2012-01-01
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To develop appropriate, multi-decadal water resources management plans that incorporate competing interests, including recreation and ecosystem protection, climate warming should be considered in the analyses. This approach will improve...
2012-01-01
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Many water management decisions, such as environmental flow requirements and water supply allocations, are based on categorical water year type designations. Thresholds for water year type designations vary by region and index, but most are...
2011-01-01
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Climate warming is altering the flow and temperature regimes in California's Sierra Nevada mountain range by reducing snowpack, causing earlier runoff and raising stream temperatures. Managing reservoir releases for downstream temperatures is a...
2011-01-01
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We report here on a major effort to define and quantify metrics of vulnerability to climate change for the west-slope of California’s Sierra Nevada. We have defined the vulnerability of flowing surface waters used for human and ecological purposes...
2010-01-01
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Water temperatures influence the distribution, abundance, and health of aquatic organisms in stream ecosystems. Improving understanding of climate warming on the thermal regime of rivers will help water managers better manage instream habitat....
2010-01-01
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The area and volume of Lake Urmia, like all salt lakes, is balanced by the amount of inflowing water. For hundreds and perhaps thousands of years, the lake was in balance with its water supply from the watershed, but recent increases in...
2014-01-01
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The area and volume of Lake Urmia, like all salt lakes, is balanced by the amount of inflowing water. For hundreds and perhaps thousands of years, the lake was in balance with its water supply from the watershed, but recent increases in...
2014-01-01
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Rural nonpoint sources of water pollution are particularly difficult to control, with relatively little progress having been made compared to point sources. Management choices are difficult because of large uncertainties in both the monitoring of...
2013-01-01
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The study of the Earth and the environment requires an understanding of the physical processes within and at the surface of the Earth. This book will allow the student to develop a broad working knowledge of mechanics and its application to the...
1994-01-01
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The practice of stream restoration has become widely accepted as an essential component to improving ecosystem function and enhancing aquatic biodiversity (Wohl et al. 2005). Despite the abundance of projects being implemented, a lack of...
2013-01-01
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If increased sediment supply to a river channel exceeds its transport capacity, deposition necessarily occurs as the bed adjusts to accommodate the increased supply. Both the mean and spatial patterns in bed elevation and grain size may change and...
2013-01-01
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Public investment in urban stream restoration is growing, yet little has been done to quantify whether its benefits outweigh its cost. The most common drivers of urban stream projects are water quality improvement and infrastructure protection,...
2012-01-01
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The October 2007 breaching of a temporary cofferdam constructed during removal of the 15-meter (m)-tall Marmot Dam on the Sandy River, Oregon, triggered a rapid sequence of fluvial responses as ~730,000 cubic meters (m3) of sand and gravel filling...
2012-01-01
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We used pre- and post-restoration channel surveys of the Donner und Blitzen River, Oregon, to evaluate the effects of grade-control structures on channel morphology and baseflow habitat conditions for native redband trout and other aquatic biota....
2012-01-01
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That sediment transport estimates have large uncertainty is widely acknowledged. When these estimates are used as the basis for a subsequent analysis, such as cumulative sediment loads or budgets, treatment of uncertainty requires careful...
2012-11-01
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A series of flume experiments were conducted in a large experimental channel at the St. Anthony Falls Laboratory to understand the coupled dynamics of flow and bed forms above the sediment-water interface. Simultaneous high resolution measurements...
2012-01-01
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A successful stream restoration design must be able to transport the sediment supplied to it with the available flow. Although this guidance is widely cited, only water supply is routinely incorporated in a consistent manner in restoration design....
2012-01-01
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Although sediment is a natural constituent of rivers, excess loading to rivers and streams is a leading cause of impairment and biodiversity loss. Remedial actions require identification of the sources and mechanisms of sediment supply. This task...
2011-01-01
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The Minnesota River Valley was carved during catastrophic drainage of glacial Lake Agassiz at the end of the late Pleistocene. The ensuing base-level drop on tributaries created knickpoints that excavated deep valleys as they migrated upstream. A...
2011-01-01
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