Using Fluorescence Spectroscopy And PARAFAC Analysis To Characterize The Water-Soluble Organic Matter And Associated Dissolved Organic Matter In A First Order Alpine Catchment

Gabor , Rachel 1 ; McKnight , Diane 2 1 ÀÖ²¥´«Ã½-Boulder 2 ÀÖ²¥´«Ã½-Boulder The increasing concentrations of dissolved organic matter observed in many northern latitude regions have potentially significant effects on both ecosystem dynamics and water treatment processes. Many hypotheses for the cause of this change...

Genetic Algorithm Optimization Of Injection And Extraction Patterns Using Two Wells For In-Situ Remediation Of Groundwater

Fuller , Kathleen 1 ; Neupauer , Roseanna M. 2 ; Mays , David C. 3 1 Department of Civil Engineering, ÀÖ²¥´«Ã½ Boulder 2 Department of Civil Engineering, ÀÖ²¥´«Ã½ Boulder 3 Department of Civil Engineering, ÀÖ²¥´«Ã½ Denver Contaminated groundwater remediation may be conducted by...

The Dynamics Of Hydrology And Mercury In Tributaries Of A Mercury-Contaminated Lake

Ebert , Jessica L 1 ; Driscoll , Charles T 2 1 ÀÖ²¥´«Ã½ at Boulder 2 Syracuse University Urban stormwater runoff is a critical water quality problem for older cities in the Northeast, including Syracuse NY. In this study we examined the response of Onondaga Creek to high...

The Effect Of Colloid-Facilitated Transport On Cesium And Srontium Transport In Unsaturated Quartz Sand Columns

Dittrich , Timothy M 1 ; Ryan , Joseph N 2 1 ÀÖ²¥´«Ã½-Boulder 2 ÀÖ²¥´«Ã½-Boulder 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...

Factors Affecting The Growth Of *Didymosphenia Geminata* In New Zealand Rivers: Flow, Bed Disturbance, Nutrients, Light, And Seasonal Dynamics.

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...

Soybeans Grown In Elevated Ozone Show Decreased Evapotranspiration That Could Have Implications On Midwest Climate And Hydrology

Casetllani , Benjamin B 1 1 Univeristy of Colorado at Boulder 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...

Ecohydrology Within The Boulder Creek Watershed: New Investigations Of Water And Carbon Fluxes

Byers , Anya 1 ; Waste , Elizabeth 2 ; Barnard , Holly R 3 1 ÀÖ²¥´«Ã½ 2 ÀÖ²¥´«Ã½ 3 ÀÖ²¥´«Ã½ Processes operating in the hydrosphere, geosphere, and biosphere interact at multiple scales to determine the structure, function, and health of terrestrial ecosystems. Although...

Interannual Forecasting Of Upper Colorado River Flow

Bracken , Cameron W 1 ; Rajagopalan , Balaji 2 1 ÀÖ²¥´«Ã½ at Boulder 2 ÀÖ²¥´«Ã½ at Boulder 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...

Flood Scaling And Network Geometry - Exploring The Role Of The Width Function

Anderson , Scott 1 ; Pitlick , John 2 1 ÀÖ²¥´«Ã½ at Boulder, Geography 2 ÀÖ²¥´«Ã½ at Boulder, 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...

Numerical Simulation Of Engineered Injection And Extraction

Abeysinghe , Nadeeka 1 ; Neupauer , Roseanna 2 ; Mays , David 3 1 ÀÖ²¥´«Ã½ at Boulder 2 ÀÖ²¥´«Ã½ at Boulder 3 ÀÖ²¥´«Ã½ at Denver Remediation of contaminated groundwater may involve the injection of a treatment solution into the aquifer to simulate degradation...

Pages