Bryn Stewart

Stanback Postdoctoral Fellow at Caltech | PhD, Environmental Engineering and Biogeochemistry at Penn State

[Dr. Elizabeth Andrews @geochem_liz]

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

[Dustin Kincaid @dustinkincaid]

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! https://t.co/o35ZAJbix7

[Bryn Stewart @bryn_stew]

If you use stream data to study how the #CriticalZone responds to disturbance, we’ve got an #AGU2024 session for you! https://t.co/lW22aVQdSK

[Devon Kerins @DevonKerins]

It’s that time of year for #AGU24 submissions! Working on the impact of disturbances on #catchment processes?
Please consider submitting an abstract to our session! @bryn_stew @geochem_liz @Kayalvizhi06

[Bryn Stewart @bryn_stew]

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.

[Bryn Stewart @bryn_stew]

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

[Bryn Stewart @bryn_stew]

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.
https://t.co/pX9p8azLVO

[Kayalvizhi Sadayappan @Kayalvizhi06]

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”

https://t.co/9XTsl5s3wp

[Julia Knapp @JLAKnapp]

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: https://t.co/ShXnalktIc (1/3)

[Bryn Stewart @bryn_stew]

@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.

[Bryn Stewart @bryn_stew]

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.

https://t.co/GPDtkYSMG5

[Bryn Stewart @bryn_stew]

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

[AGU's Eos @AGU_Eos]

How does a changing climate affect a river’s chemistry and water quality?

Research from @LiReactiveWater, @PSUEngineering, @PennStateCEE, @IEEPennState, @NV_Mtn_Ecohydro, @BigCzcn.

https://t.co/fJNgBiiiwX

[Bryn Stewart @bryn_stew]

New #AGU22 hydrology session H099! Submit your abstracts on using #CriticalZone science to understand catchment processes and response to perturbation. More details at: https://t.co/idV6TnlARh
Abstract submission deadline: 3 August 2022

[Li Li 李黎 @LiReactiveWater]

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: https://t.co/MeKNVRivKz

[Bryn Stewart @bryn_stew]

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

[Bryn Stewart @bryn_stew]

How does stream chemistry reflect the distribution of solutes in the subsurface? See my virtual talk for the #ESA2020 meeting at: https://t.co/qAGda6itot

[Bryn Stewart @bryn_stew]

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