Bryn Stewart

Do you work on #CatchmentHydrology with a focus on how disturbances impact the #CriticalZone? Please consider submitting an abstract to our #AGU24 session! We have two great invited speakers, @AllyJacoby and @FluvialBenthos! @bryn_stew @DevonKerins @Kayalvizhi06

New @BigCzcn paper! Threshold C-Q responses were rare for 11 solutes across CAMELS catchments; solutes were dominated by 1 or 2 C–Q patterns; & links to catchment/hydroclimatic attributes were weak. Great ref paper for your fave solute or region! doi.org/10.1002/hyp.15…

If you use stream data to study how the #CriticalZone responds to disturbance, we’ve got an #AGU2024 session for you! agu.confex.com/agu/agu24/prel…

We found that: DOC was mainly produced in summer and exported in spring from the shallow subsurface; DIC was exported mostly from the deep subsurface in spring; DIC originated more from biogenic (soil respiration) than geogenic (weathering) sources in a carbonate-based catchment.

New paper with @LiReactiveWater @ecseybold @dustinkincaid and other wonderful co-authors from the Big Data CZ team <3

When, where, and how much are dissolved carbon species produced and laterally exported at the catchment scale? We used a new reactive transport model, BioRT-HBV, to illuminate the “invisible” subsurface processes that control DOC and DIC in stream water. agupubs.onlinelibrary.wiley.com/doi/10.1029/20…

Hi! Working on the impact of disturbances (#LULC changes and #climatechange) on #catchment processes? We invite you to present your work in the #AGU23 session H134: “Understanding and scaling catchment response to disturbances” agu.confex.com/agu/fm23/preli…

Starting off my first week back at work after maternity leave with a new paper: @andreas_musolff, @LiReactiveWater and I looked at the effect of catchment wetness and #connectivity on concentration discharge relationships: dx.doi.org/10.1002/hyp.14… (1/3)

@marc_peipoch Thank you! Negative power law exponents (b values) range from -0.55 to 0 across the analyzed sites, but the majority of values fell in the -0.3 to -0.1 range.

What drives dissolved inorganic carbon (DIC) in rivers? Data from > 100 US rivers show 1) mean conc are higher in arid climates; 2) intra-site instantaneous conc almost universally decrease with discharge, consistent with observed soil CO2 profiles. agupubs.onlinelibrary.wiley.com/doi/10.1029/20…

New paper with @WeiZhiWater @Kayalvizhi06 @hydro_gary @NV_Mtn_Ecohydro @LiReactiveWater

How does a changing climate affect a river’s chemistry and water quality? Research from @LiReactiveWater, @PSUEngineering, @PennStateCEE, @IEEPennState, @NV_Mtn_Ecohydro, @BigCzcn. eos.org/research-spotl…

New #AGU22 hydrology session H099! Submit your abstracts on using #CriticalZone science to understand catchment processes and response to perturbation. More details at: agu.confex.com/agu/fm22/preli… Abstract submission deadline: 3 August 2022

First WARR talk in 2022! Th 2/17. My dear friend Prof. Pamela Sullivan @pamlsulli @OSUCEOAS will lead off, followed by, ah ... me. Would love to see you there. Register: psu.zoom.us/meeting/regist…

@LiReactiveWater Thanks, Dr. Li! We've also extended our abstract deadline to Monday, 3/22 at 5PM (EDT). There's still time!

Proud to advertise for a student-run Environmental Chemistry and Microbiology Student Symposium, organized by @bryn_stew et al., online 3/31-4/2. sites.psu.edu/saese/. Deadline for abstracts: 3/15, 5 PM (EDT). All environmental subjects are welcome. Open to non-PSU students.

How does stream chemistry reflect the distribution of solutes in the subsurface? See my virtual talk for the #ESA2020 meeting at: eco.confex.com/eco/2020/meeti…

Excess nutrients can pollute natural waters, causing significant harm to aquatic ecosystems. We're trying to determine how hydrology influences the amount of nutrients flowing through natural waters with concentration-discharge analyses. @kh_freeman #GeoWriters