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Dittrich , Timothy M 1 ; Ryan , Joseph N 2 1 University of Colorado-Â鶹ӰԺ 2 University of Colorado-Â鶹ӰԺ The presence of small particles (colloids) in natural soil and groundwater systems has been well established. Under certain environmental conditions, the sorption of contaminants to mobile colloids can increase transport in...

Cullis , James D 1 1 Civil Environmental and Architectural Engineering (CEAE) and Institute for Arctic and Alpine Research (INSTAAR) Didymosphenia geminata (didymo) was introduced into a New Zealand river in 2004, and since then has dramatically spread to cover the beds of many rivers with extremely dense and extensive...

Casetllani , Benjamin B 1 1 Univeristy of Colorado at Â鶹ӰԺ As a result of increasing anthropogenic emissions of pollutants, tropospheric ozone levels are projected to rise 40 to 60 percent by the year 2100 (IPCC 2007). This study focuses on the effect that this increase would have on the...

Byers , Anya 1 ; Waste , Elizabeth 2 ; Barnard , Holly R 3 1 University of Colorado 2 University of Colorado 3 University of Colorado Processes operating in the hydrosphere, geosphere, and biosphere interact at multiple scales to determine the structure, function, and health of terrestrial ecosystems. Although...

Bracken , Cameron W 1 ; Rajagopalan , Balaji 2 1 University of Colorado at Â鶹ӰԺ 2 University of Colorado at Â鶹ӰԺ Current operational forecasting methods in the Upper Colorado River Basin (UCRB) use antecedent flow and soil moisture conditions, snowpack and climate indices (Brandon, 2005). Experimental methods include large...

Anderson , Scott 1 ; Pitlick , John 2 1 University of Colorado at Â鶹ӰԺ, Geography 2 University of Colorado at Â鶹ӰԺ, Geography Flooding and flood processes play an integral role in the geomorphological and ecological systems of landscapes, and can have large impacts on human developments. Changing climate has...

Abeysinghe , Nadeeka 1 ; Neupauer , Roseanna 2 ; Mays , David 3 1 University of Colorado at Â鶹ӰԺ 2 University of Colorado at Â鶹ӰԺ 3 University of Colorado at Denver Remediation of contaminated groundwater may involve the injection of a treatment solution into the aquifer to simulate degradation...

Abel , Kali M 1 1 University of Colorado, Â鶹ӰԺ and INSTAAR Yosemite’s small glaciers are rapidly retreating, impacting a critical source of late-season cold water for the upper Tuolumne River ecosystem. Addressing quantitatively how glaciers will respond to present and future climate change demands that we understand how small...

Zeliff , Morgan 1 ; Williams , Mark 2 ; Cowie , Rory 3 ; Knowles , John 4 ; Burns , Sean 5 1 University of Colorado 2 University of Colorado 3 University of Colorado 4 University of Colorado 5 University of Colorado Here we evaluate how evapotranspiration (ET)...

Wickert , Andrew D. 1 ; Anderson , Robert S. 2 ; Mitrovica , Jerry X. 3 1 University of Colorado 2 University of Colorado 3 Harvard University Glacial cycles modified North American river systems by drastically changing drainage basin areas, patterns of precipitation, and meltwater delivery to channels. We...