INVITED FACULTY TALK - Sliding, Water Pressure, Water Chemistry And Outburst Floods At Kennicott Glacier, Alaska

Aug. 23, 2018

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...

INVITED TALK - Challenges In The Study Of Mercury-Dissolved Organic Matter Interactions

Aug. 23, 2018

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...

Save Our Snow: Predicting Ski Conditions And Mountain Hydrology For The Years 2030 And 2100, Rocky Mountains

Aug. 23, 2018

Williams , Mark W 1 1 CU-Boulder 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...

INVITED KEYNOTE PRESENTATION - Two Talks In One: Hydromorphology – The Human/Hydrologic Footprint And A Methodology For A National Water Census

Aug. 23, 2018

Vogel , Richard M 1 1 Tufts University, Department of Civil and Environmental Engineering A general introduction to the new field of ‘hydromorphology’ will be given. Hydromorphology is to hydrology, as geomorphology is to geology. Hydromorphology deals with the evolution and structure of systems. There are very few water systems...

Spatial Variations In Sediment Transport Intensity And Their Effects On Benthic Organisms In A Mountain River, CO.

Aug. 23, 2018

Segura , Catalina 1 ; Pitlick , John 2 1 University of Colorado 2 University of Colorado The spatial variability of sediment transport intensity at the reach scale is controlled both by the available shear stress, Ï„, and the grain size distribution of the channel bed. This variability creates patches...

Changes In Turbulent-Stress Profiles In Response To Increasing Bed Roughness: Implications For Sediment Transport In High Gradient Streams

Aug. 23, 2018

Pitlick , John 1 ; , GEOG 5100 students 2 ; Nelson , Jonathan 3 1 University of Colorado 2 University of Colorado 3 US Geological Survey The bed roughness in headwater streams is generally large in comparison to the flow depths required to initiate bed load transport The roughness...

Hydrologic Responses Of An Alpine Wetland To Changes In Climate, Front Range, Colorado

Aug. 23, 2018

Nielson , Ashley 1 ; Williams , Mark 2 ; Caine , Nel 3 1 INSTAAR,Niwot Ridge LTER,Department of Geography 2 INSTAAR,Niwot Ridge LTER,Department of Geography 3 INSTAAR,Niwot Ridge LTER,Department of Geography Alpine wetlands have been suggested to be among the most sensitive types of wetlands to changes in climate...

Evaluating Regional Patterns In Nitrate Sources To Watersheds In National Parks Of The Rocky Mountains Using Nitrate Isotopes

Aug. 23, 2018

Nanus , Leora 1 ; Williams , Mark W 2 ; Campbell , Donald H 3 ; Kendall , Carol 4 ; Elliott , Emily M 5 1 University of Colorado Boulder, US Geological Survey 2 University of Colorado Boulder 3 US Geological Survey 4 US Geological Survey 5 University...

Hydraulic Geometry Of Streams And Rivers In The Northern Rocky Mountains Of Idaho: Correlating Channel Form And Sediment Transport Dynamics

Aug. 23, 2018

Mueller , Erich R 1 ; Pitlick , John 2 1 Department of Geography, University of Colorado 2 Department of Geography, University of Colorado Channel morphology in streams and rivers is a product of the watershed scale flux of sediment and water to the channel network. As a result the...

Sources Of DOM To Alpine Surface Waters: In-Lake Vs. Watershed Production

Aug. 23, 2018

Miller , Matthew 1 ; McKnight , Diane 2 ; Borgnis , Evyan 3 1 INSTAAR, University of Colorado 2 INSTAAR, University of Colorado 3 University of San Francisco The pulse of dissolved organic matter (DOM) that occurs during snowmelt in mountain catchments is associated with the flushing of DOM...

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