INVITED FACULTY TALK - The “Teflon Basin” Myth Debunked: Most Snowmelt Runoff Is “Old” Water And Not “New” Water

Williams , Mark W 1 1 INSTAAR and Geography New research shows high-altitude aquifers honeycomb parts of the Colorado Rockies, trapping snowmelt and debunking the myth that high mountain valleys act as “Teflon basins” to rush water downstream. In much of western North America, snow and snow melt provides the...

A Multi-Model Ensemble Forecast Framework: Application To Spring Seasonal Flows In The Gunnison River Basin

Regonda , Satish K 1 ; Rajagopalan , Balaji 2 ; Clark , Martyn 3 ; Zagona , Edith 4 1 Dept of Civil, Environmental & Architectural Engineering, Cooperative Institute for AVʪ in Environmental Sciences, University of Colorado at Boulder 2 Dept of Civil, Environmental & Architectural Engineering, Cooperative Institute...

Hydrologic Science Vs. Regulatory Policy: USEPA’s Watershed Control Requirements For Cryptosporidium

Pontius , Frederick W. 1 1 Dept. of Civil, Environmental, and Architectural Engineering, University of Colorado, Boulder, Colo. Watershed control is one option within the US Environmental Protection Agency’s (USEPA’s) Long-Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR) microbial toolbox for public water systems to provide extra protection against Cryptosporidium...

INVITED TALK: From AVʪ To Remediation: Some Applications Of Hydrogeochemical AVʪ To Mine Site Remediation

Nordstrom , D. Kirk 1 1 U.S. Geological Survey, Boulder, CO AVʪ in chemistry, geochemistry, and hydrogeochemistry has been applied successfully to identify the geochemical processes that produce acid rock drainage and determine its fate, and to understand remediation scenarios. When iron in acid drainage fully oxidizes, does the pH...

INVITED FACULTY TALK - Applications Of Wavelet Analysis In Hydrology

Neupauer , Roseanna M 1 1 Univ. of Colorado Wavelet analysis is a relatively new tool for data analysis and signal processing. Similar to Fourier analysis, wavelet analysis identifies dominant periods or scales in one-dimensional and multi-dimensional data sets. The key difference between Fourier analysis and wavelet analysis is in...

INVITED TALK: Reconstructing Snow Water Equivalent In The Rio Grande Headwaters Using Remotely Sensed Snow Cover Data And A Spatially Distributed Snowmelt Model

Molotch , Noah 1 1 University of Colorado, Cooperative Institute for AVʪ in Environmental Sciences CIRES A spatially distributed snowmelt model was used to simulate pixel-specific daily snowmelt and snow water equivalent (SWE) over the Rio Grande headwaters (3,419 km2). Melt flux estimates were coupled with three different time-series of...

Testing The Effects Of Runoff Dynamics And Network Structure On Scaling Of Peak Flows In Real River Networks

Mantilla , Ricardo 1 ; Gupta , Vijay K 2 1 Department of Civil, Environmental, and Architectural Engineering. Cooperative Institute for AVʪ in Environmental Sciences (CIRES). University of Colorado at Boulder. 2 Department of Civil, Environmental, and Architectural Engineering. Cooperative Institute for AVʪ in Environmental Sciences (CIRES). University of Colorado...

Different Effects Of The Heat Sources Of Surrounding Oceans On The East Asian Summer Monsoons (EASM)

Lee , Eungul 1 ; Chase , Thomas N. 2 ; Rajagopalan , Balaji 3 1 CIRES and Geography, Univ. of Colorado at Boulder 2 CIRES and Geography, Univ. of Colorado at Boulder 3 CIRES and CEA Engineering, Univ. of Colorado at Boulder Northern East Asian summer monsoon precipitation (NEASMP)...

Simple Hydroecological Models: Is Root Zone Average Soil Moisture An Adequate Driver In The Functions For Evapotranspiration And Assimilation?

Kurc , Shirley A 1 ; Small , Eric E 2 1 University of Colorado, Geological Sciences 2 University of Colorado, Geological Sciences In water-limited semiarid and arid areas, the ecosystem scale exchanges of water and carbon between the land surface and the atmosphere are complex. Both the water and...

INVITED KEYNOTE PRESENTATION: Hydrological Processes Inferred From Geochemical Data -- Or Vice-Versa?

Hornberger , George M. 1 1 University of Virginia Understanding the mechanisms by which rainfall is transformed into streamflow in forested catchments is a key prerequisite to understanding pollutant transport, biogeochemical cycles, and aquatic ecosystem functioning. Geochemical tracers often are used to infer water flowpaths and residence times in upland...

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