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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 ºù«ÍÞÊÓƵ 2 University of Colorado at ºù«ÍÞÊÓƵ 3 University of Colorado at ºù«ÍÞÊÓƵ 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 ºù«ÍÞÊÓƵ 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, ºù«ÍÞÊÓƵ 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-ºù«ÍÞÊÓƵ 2 Geography Department, CU-ºù«ÍÞÊÓƵ 3 Geography Department, CU-ºù«ÍÞÊÓƵ 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...

Brown , Gerald R. 1 1 Navajo Technical College This presentation will provide a summary of the work conducted by Church Rock Chapter of the Navajo Nation under the auspicies of the Church Rock Uranium Monitoring Project, and SRIC's role in providing organizational and technical support for those activities. Results...

Anthony , James L. 1 ; Lewis , William M. 2 1 CIRES/Center for Limnology 2 CIRES/Center for Limnology Mass balances suggest that phytoplankton production in laks may be subsidized by nutrients released from epilimnetic sediments, but the role of turbulence in these exchanges if poorly understood. Through its influence...

Anderson , Suzanne P. 1 ; Bartholomaus , Timothy C. 2 ; Anderson , Robert S. 3 1 CU 2 CU 3 CU Observations at Kennicott Glacier, Alaska, suggest that glacier sliding may trigger drainage of Hidden Creek Lake, an ice-dammed lake that annually produces a jökulhlaup. Glaciers slide when...

Aiken , George 1 1 US Geological Survey A number of biogeochemical processes that influence the fate, bioavailability and transport of mercury (Hg) in aquatic systems are mediated by the interaction of Hg with dissolved organic matter (DOM). In many cases, the interactions between Hg and DOM in a particular...

Williams , Mark W 1 1 CU-ºù«ÍÞÊÓƵ Mountains, like the polar regions, are likely to experience the effects of global warming before lowland sites. Seasonally snow-covered areas are like canaries in a coal mine; early warning systems that climate change is occurring. Small increases in air temperature can cause snowfall...