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

Aug. 23, 2018

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...

Modeling Nitrate Uptake Via A Tracer Injected Into A Bacteria-Dominated, Polar Desert Stream

Aug. 23, 2018

Koch , Joshua C 1 ; McKnight , Diane M 2 ; Cozzetto , Karen D 3 1 Institute for Arctic and Alpine Research, University of Colorado 2 Institute for Arctic and Alpine Research, University of Colorado 3 Institute for Arctic and Alpine Research, University of Colorado A 33 hour...

The Influence Of Vegetation On The Soil Moisture Profile In Two Sub-Alpine Ecosystems Of The Southwestern United States

Aug. 23, 2018

Jacobson , Phillip 1 ; Small , Eric E 2 1 University of Colorado, Geological Sciences 2 University of Colorado, Geological Sciences My research focuses on trends in water content and water potential of different soil depths in a ponderosa pine and an Engelmann spruce forest of the Rio Grande...

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

Aug. 23, 2018

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...

A Comparison Of Hydrological Flowpaths And Nutrient Export In Three Small Tropical Forest Catchments

Aug. 23, 2018

Hoalst Pullen , Nancy 1 ; Hamann , Hillary B. 2 ; Stallard , Robert F 3 1 Geography, INSTAAR, University of Colorado at Boulder 2 Geography and Environmental Sciences, University of Colorado - Colorado Springs 3 USGS (Boulder, CO); INSTAAR, University of Colorado at Boulder; Smithsonian Tropical Research Institute...

Daily Patterns In Streamwater Chemistry And Isotopic Content Of A Headwater Stream During Snowmelt

Aug. 23, 2018

Hill , Kenneth 1 ; Hamann , Hillary 2 ; Williams , Mark 3 ; Caine , Nel 4 1 University of Colorado at Boulder. Department of Geography and INSTAAR 2 University of Colorado at Colorado Springs. Department of Geography and Environmental Studies 3 University of Colorado at Boulder. Department...

Numerical Simulations Of Vortex Stirring Associated With Fertilization Efficiency In Marine Invertebrates

Aug. 23, 2018

Hartford , Jillian R 1 ; Crimaldi , John P 2 1 University of Colorado--Boulder 2 University of Colorado--Boulder Various benthic invertebrates (e.g. sea urchins, anemones, corals) rely on broadcast spawning, a fertilization strategy whereby male and female adults simultaneously release sperm and egg into the surrounding flow [1]. In...

Inverse Modeling Of Soil Hydraulic Properties From Surface Temperature

Aug. 23, 2018

Gutmann , Ethan D 1 ; Small , Eric E 2 1 University of Colorado 2 University of Colorado Soil Hydraulic Properties (SHPs) play an important role in regulating heat and moisture fluxes in land surface models. Currently, SHPs are estimated from soil texture class. However, studies have shown that...

INVITED KEYNOTE PRESENTATION: Integration Of Science And Decision Making For Watershed Management: Reducing The Uncertainty Of Key Water Balance Components At The Basin Scale.

Aug. 23, 2018

Goodrich , David C. 1 1 USDA-Agricultural Research Service, Tucson Decision-makers and natural resource managers increasingly require much more sophisticated levels of expert findings and scientific results to make informed decisions. No single scientific discipline is typically capable of providing integrated solution for decision-makers and managers. Significant effort beyond the...

INVITED TALK: Hydroclimatology Of The North American Monsoon: Bound By Terrain But Courted By ENSO?

Aug. 23, 2018

Gochis , David J 1 1 National Center for Atmospheric Research Research into the North American Monsoon reveals a continental-scale climatic system possessing marked intra- and inter-regional variations in hydroclimatology. Some works have elucidated the striking role that regional physiography (e.g. terrain and proximity to water bodies) within the monsoon...

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