BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
X-WR-CALNAME:Boase Hydrologic Sciences and Water Resources Engineering Semi
 nar Series
X-WR-TIMEZONE:Mountain Time (US & Canada)
BEGIN:VEVENT
DTSTAMP:20260609T182042Z
UID:tag:localist.com\,2008:EventInstance_51808452928830
DTSTART:20260204T181500Z
DTEND:20260204T191500Z
DESCRIPTION:Speaker: Jasmine Krause\, PhD candidate\, Water Resources\, Dep
 artment of Biological and Ecological Engineering\, Oregon State University
 \n\n \n\nSeminar: From Synthesis to Sensors: Understanding Oxygen Regimes 
 in Headwater Streams\n\n \n\nAbstract\nDissolved oxygen (DO) is a fundamen
 tal indicator of aquatic ecosystem health and an integrative signal of phy
 sical\, biological\, and biogeochemical processes in streams. However\, mu
 ch of the empirical and conceptual foundation for oxygen dynamics is deriv
 ed from studies of perennial streams and relies on assumptions of spatial 
 homogeneity and in-channel dominance that may not hold in headwater networ
 ks. This talk begins with a synthesis of empirical studies quantifying sur
 face and subsurface oxygen exchanges across streams and rivers\, highlight
 ing persistent methodological biases\, limited representation of the fluxe
 s that generate whole-stream signals\, and the underrepresentation of inte
 rmittent headwaters. Building on this synthesis\, I present high-frequency
  sensor observations and targeted field experiments from a spatially inter
 mittent headwater stream in the H.J. Andrews Experimental Forest\, Oregon\
 , USA\, to examine how DO dynamics reorganize across hydrologic states. Fi
 nally\, I link observed DO patterns to underlying oxygen fluxes\, demonstr
 ating how different processes become dominant under certain flow condition
 s. Together\, this work underscores the need for empirical investigation i
 n intermittent headwaters\, where strong heterogeneity challenges existing
  assumptions about oxygen dynamics.\n\n \n\nBio\nJasmine Krause is a PhD s
 tudent in Water Resources Science at Oregon State University. Her expertis
 e lies at the intersection of aquatic ecology and hydrology\, integrating 
 field-based sensor measurements and modeling to improve understanding of s
 tream processes. Her Ph.D. research focuses on dissolved oxygen dynamics i
 n headwater streams\, particularly the roles of intermittency and subsurfa
 ce exchange in shaping oxygen variability.
GEO:40.006791;-105.262818
LOCATION:Engineering Center\, ECNW 150A (Engineering Building)
SUMMARY:Boase Hydrologic Sciences and Water Resources Engineering Seminar S
 eries
URL;VALUE=URI:https://calendar.colorado.edu/event/boase-hydrologic-sciences
 -and-water-resources-engineering-seminar-Jasmine-Krause
CATEGORIES:Lecture/Presentation
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