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Babcock , Kenneth P 1 ; Ge , Shemin 2 1 University of Colorado at Â鶹ӰԺ 2 University of Colorado at Â鶹ӰԺ The purpose of this study is to gain a scientific understanding of the groundwater-surface water interactions occurring between Â鶹ӰԺ Creek and an alluvial aquifer. The study area is...

Anthony , James L. 1 ; Lewis , William 2 1 Department of Ecology and Evolutionary Biology, Cooperative Institute for Research in Environmental Sciences, University of Colorado 2 Department of Ecology and Evolutionary Biology, Cooperative Institute for Research in Environmental Sciences, University of Colorado Nutrient mass balance studies suggest that...

Abood , Paul 1 ; Williams , Mark 2 ; Tonnessen , Kathy 3 ; Morris , Kristi 4 1 University of Colorado, Â鶹ӰԺ 2 University of Colorado, Â鶹ӰԺ 3 Rocky Mountains CESU, National Park Service 4 Air Resources Division, National Park Service NADP/NTN data are used to characterize the...

Watkins , Loring P 1 ; Neupauer , Roseanna M 2 1 University of Colorado at Â鶹ӰԺ 2 University of Colorado at Â鶹ӰԺ An accurate representation of permeability anisotropy is needed to accurately model the rate and direction of groundwater flow. Wavelet analysis can be used to characterize principal directions...

Ward , Dylan J 1 ; Anderson , Robert S 2 ; Briner , Jason P 3 ; Guido , Zackry S 4 1 University of Colorado, Dept. of Geological Sciences and INSTAAR 2 University of Colorado, Dept. of Geological Sciences and INSTAAR 3 State University of New York at...

Towler , Erin L 1 ; Rajagopalan , Balaji 2 ; Summers , Scott 3 ; Seidel , Chad 4 1 University of Colorado at Â鶹ӰԺ 2 University of Colorado at Â鶹ӰԺ 3 University of Colorado at Â鶹ӰԺ 4 Damon S. Williams Drinking water utilities face complex decisions when balancing...

Syvitski , James 1 1 Environmental Computation and Imaging Group, INSTAAR, University of Colorado at Â鶹ӰԺ The UNH water balance and transport model (WBM), based on the STN-30p network, provides a fundamental structure for analyzing the water and sediment flux distribution by river basin, continent, climatic zone, and receiving ocean...

Ryan , Joseph N 1 1 University of Colorado, Â鶹ӰԺ We investigated the transport of the cations Cs+ and Sr2+ in flow-through and recirculating saturated quartz porous media in the absence and presence of illite colloids to examine the effect of cation desorption kinetics on colloid-facilitated transport. The illite colloids...

Pitlick , John 1 ; Mueller , Erich 2 ; Segura , Catalina 3 1 Geography Department, CU-Â鶹ӰԺ 2 Geography Department, CU-Â鶹ӰԺ 3 Geography Department, CU-Â鶹ӰԺ In high-gradient channels the sediment which is present on the bed surface (the armor layer) is typically much coarser than the sediment which moves...

Miller , Matthew 1 ; McKnight , Diane 2 ; Alexa , Katherine 3 1 INSTAAR, Environmental Engineering 2 INSTAAR, Environmental Engineering 3 Cornell University We studied the impact of a sustained high elevation rain event in mid-summer on the biogeochemistry of dissolved organic material (DOM) in aquatic ecosystems in...