A Shift In Diatom Species Regime Due To Increased Phosphorous Associated With The Thaw Of Alpine Permafrost

Bell , Tisza 1 ; McKnight , Diane 2 1 INSTAAR, CU ºù«ÍÞÊÓƵ 2 INSTAAR, CU ºù«ÍÞÊÓƵ Green Lake 4 is an alpine lake in Rocky Mountain National Park, Colorado.. Many alpine lakes similar in productivity and elevation to Green Lake 4, have shown a recent shift in diatom species...

Water Resources Management Under Climate Variability – Overview Of CADSWES Projects And Tools

Zagona , Edie 1 ; Rajagopalan , Balaji 2 1 Research Professor, Department of Civil, Environmental and Architectural Engineering and Director, Center for Advanced Decision Support for Water and Environmental Systems (CADSWES) 2 Professor, Department of Civil, Environmental and Architectural Engineering and Fellow, Cooperative Institute for Research in Environmental Sciences...

Groundwater Flow Simulation Of Uranium In-Situ Leach Mining In Northern Colorado

Yoshino , Miori 1 ; Ge , Shemin 2 1 University of Colorado 2 University of Colorado A uranium deposit in north-central Colorado is under consideration for in-situ leach mining. The stratigraphy of the area includes, in ascending order, the Pierre Shale, the Fox Hills sandstone, and the Laramie Formation...

Decadal Changes In Climate And Hydrological Responses In High Elevation Catchments, Colorado Front Range

Williams , Mark W 1 ; Hill , Ken 2 ; Caine , Nel 3 1 CU-ºù«ÍÞÊÓƵ 2 National Park Service 3 CU-ºù«ÍÞÊÓƵ Potential climate impacts on the hydrochemistry of two seasonally snow covered catchments is evaluated using 24 years of data from Niwot Ridge Long Term Ecological Research Site,...

Stoichiometric Control Of Organic Carbon-Nitrate Relationships From Soils To The Sea

Taylor , Philip G 1 ; Townsend , Alan R 2 1 University of Colorado 2 University of Colorado Human creation of reactive nitrogen has risen an order of magnitude since the dawn of the Industrial Revolution. This dramatic reorganization of a global biogeochemical cycle has brought substantial benefits, but...

Interactions Between Turbulent Mixing And Broadcast Spawning

Soltys , Michael 1 ; Crimaldi , John P 2 1 University of Colorado 2 University of Colorado Turbulent fluid flow plays an important role in many physical and biological mixing processes. This is exemplified by broadcast spawning, the reproductive strategy used by corals and many other marine invertebrates. When...

Search For The Origins Of Dissolved Organic Matter In A Supraglacial Stream On The Cotton Glacier, Antarctica

SanClements , Michael 1 ; McKnight , Diane 2 ; Chin , Yu-Ping 3 ; Foreman , Christine 4 ; Kilduff , Chip 5 1 INSTAAR, University of Colorado at ºù«ÍÞÊÓƵ 2 INSTAAR, University of Colorado at ºù«ÍÞÊÓƵ 3 Ohio State University 4 Montana State University 5 Rensselear Polytechnic Institute...

Combining Remote Sensing And Isotopic Analysis To Determine The Contribution Of Snow- And Ice-Melt To Streamflow In The Nepal Himalaya: A Multi-Scale Approach

Racoviteanu , Adina E 1 ; Armstrong , Richard 2 ; Williams , Mark W. 3 ; Alford , Don 4 ; Cowie , Rory 5 1 Dept of Geography and Institute of Arctic and Alpine Research, University of Colorado 2 National Snow and Ice Data Center, University of Colorado...

The Impact Of Pine Beetle Infestation On Snowpack Accumulation And Melt In The Headwaters Of The Colorado River: Results From The 'Red Phase' Of Tree Death

Pugh , Evan T 1 ; Small , Eric E 2 1 University of Colorado 2 University of Colorado More than 8,000 km2 of lodgepole pine forest in Colorado have been infested by mountain pine beetles since 1996. We examine the impact of beetle-induced tree death on snowpack accumulation and...

Impact Of Dust Events On Snow Surface Characteristics And Meltwater Flow Paths At Niwot Ridge, Colorado

Petrzelka , Jennifer 1 ; Williams , Mark 2 ; Fassnacht , Steve 3 ; Zukiewicz , Lucas 4 1 Department of Geography and Institute of Arctic and Alpine Research, University of Colorado, ºù«ÍÞÊÓƵ 2 Department of Geography and Institute of Arctic and Alpine Research, University of Colorado, ºù«ÍÞÊÓƵ 3...

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