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Kaci Zarek

@kacizarek.bsky.social

PhD student at Cornell • Holgerson Lab • biogeochem & hydro • study gassy waters 🫧

19 Posts397 Follower184 Folgt
Sammy Roth@sammyroth.bsky.social · 5mo ago

Beaver scientist @emilyfairfax.bsky.social, who consulted with Pixar on "Hoppers," loved the film's message. “We need to partner with nature to deal with the climate crisis. We need to partner with nature to deal with the biodiversity crisis." www.climatecoloredgoggles.com/p/pixar-hopp...

Everyone go see 'Hoppers' ASAP

In Pixar's new film, humans and animals fight to block a freeway overpass that would destroy a wetland habitat. It's a brilliant climate parable.

climatecoloredgoggles.com

Kaci Zarek@kacizarek.bsky.social · 5mo ago

Does anyone know if it’s recommended to measure TN/TP on a SEAL with the alkaline potassium persulfate digestion method or acidic potassium persulfate digestion? Thanks!!

Alt National Park Service@altnps.bsky.social · 9mo ago

The rule also removes protections for ephemeral streams (waterways that flow only after rain or snow) despite their importance to downstream water quality. In short, this proposal rolls back long-standing protections and leaves millions of acres of waterways more vulnerable to pollution.

EPA & Army Corps Unveil Clear, Durable WOTUS Proposal | US EPA

EPA Administrator Lee Zeldin, and Assistant Secretary of the Army for Civil Works Adam Telle, today announced a proposed rule that would establish a clear, durable, common-sense definition of “waters ...

epa.gov

Anna Virkkala@annvirkk.bsky.social · 10mo ago

It has taken more than two years (plus all the years data contributors have spent on their data collection), but finally our data descriptor manuscript preprint on Arctic-boreal carbon fluxes across terrestrial and freshwater ecosystems is out: essd.copernicus.org/preprints/es... Go have a look!

ABCFlux v2: Arctic–boreal CO2 and CH4 monthly flux observations and ancillary information across terrestrial and freshwater ecosystems

Abstract. Measurements of surface-atmosphere carbon dioxide (CO2) and methane (CH4) fluxes have been relatively sparse across the Arctic tundra and boreal biomes, causing significant uncertainties in ...

essd.copernicus.org

Ben Bond-Lamberty@benbondlamberty.bsky.social · 10mo ago

A fabulous #postdoc opportunity to work with my colleague Nick Ward at PNNL on forest trace gas cycling, studying a poorly constrained component of the Earth system! Please share widely: careers.pnnl.gov/jobs/10985?l...

Post Doctorate Research Associate – Forest Trace Gas Cycling in Sequim, Washington | Pacific Northwest National Laboratory

PNNL is hiring a Post Doctorate Research Associate – Forest Trace Gas Cycling in Sequim, Washington. Review all of the job details and apply today!

careers.pnnl.gov

Delaney Peterson@thatsmedelp.bsky.social · 11mo ago

super excited to share that my first dissertation chapter is out in WRR! here, we operationalize the river corridor of a headwater Coastal Plain network into hydrogeomorphic features to characterize hydrologic connectivity across dimensions check it out here: doi.org/10.1029/2024...

Using Hydrogeomorphic Features to Quantify Structural and Functional Hydrologic Connectivity in a Coastal Plain Headwater Stream

Hydrogeomorphic features provide a key framework to study streamflow generation along the river corridor Across the study watershed, hydrogeomorphic features demonstrated distinct patterns of gro...

doi.org

KinarNicholas.bsky.social@kinarnicholas.bsky.social · last yr.

Hydrology Paper of the Day @profbobhilton.bsky.social on transport of river-dissolved inorganic carbon on a global scale: isotopic analyses indicating decadal and millennial-age carbon stores; constraining river carbon emissions; and landscape-scale controls in context of the global carbon budget.

Bob Hilton@profbobhilton.bsky.social · last yr.

New paper! led by Josh Dean “Old carbon routed from land to the atmosphere by global river systems” doi.org/10.1038/s415... #radiocarbon in #rivers reveals the age of CO2 they release to the atmosphere. An active leak of old carbon from land. 🧪⚒️ @joshfdean.bsky.social @oxuniearthsci.bsky.social

Margaret Zimmer@margaretzimmer.bsky.social · last yr.

Wrapping up your PhD? I’m planning to hire a postdoc in the next few months (start date flexible). Will start formally advertising soon, but you heard it here first!! Possible research topics include - critical zone hydrology, agricultural water quality, SW-GW interactions. Reach out if interested!

AGU (American Geophysical Union)@agu.org · last yr.

The relationship between topography & the terrestrial water cycle has been documented for thousands of years, yet there is still much to learn about Earth’s complex dynamics–both above, at, & below the surface.🏔️🌧️ 🔗 Learn more in @eos.org : buff.ly/y6r3yAr #AGUPubs @reviewsgeophysics.bsky.social

Topography and the Terrestrial Water Cycle - Eos

The relationship between topography and the terrestrial water cycle has been documented for thousands of years, yet there is still much to learn about Earth’s complex dynamics – both above, at, and…

buff.ly

Margaret Zimmer@margaretzimmer.bsky.social · last yr.

Latest paper out of the WS hydrology lab! Here we show spatial variability in lithology is important for streamflow behavior and carbon export, but geogenic solute export behavior is similar. agupubs.onlinelibrary.wiley.com/doi/full/10....

The Role of Lithology on Concentration‐Discharge Relationships and Carbon Export in Two Adjacent Headwater Catchments

Bedrock lithology drives differences in streamflow and carbon export in adjacent catchments, controlling variability in shallow flow paths Both catchments display similar in-stream major ion conc...

agupubs.onlinelibrary.wiley.com

Kaci Zarek@kacizarek.bsky.social · last yr.

So excited for my first first author paper of my master’s research to be published!! Woohoo!! Couldn’t have done it without the amazing coauthors and AIMS team!

Nate Jones@floodhydrology.bsky.social · last yr.

Big CONGRATS to @kacizarek.bsky.social!!! Her new paper is out in @agu.org's JGR-B! The paper has a little bit of everything -- N biogeochemistry, intermittent stream hydrology, concentration-connectivity relationships! Check it out here: agupubs.onlinelibrary.wiley.com/doi/full/10....

Conceptual figure illustrating predicted biogeochemical responses to changes in network connectivity and streamflow. (a) At the watershed outlet, we predicted NO3− export would increase in response to increasing watershed‐scale connectivity and streamflow, resulting in an enrichment of NO3− downstream. As watershed‐scale connectivity (active surface drainage network length) and streamflow decrease in the dry‐down, NO3− export will decrease due to N source limitations. (b) Throughout the watershed, we predicted the seasonal dry‐down period to be the greatest potential for denitrification to occur given the availability of both NO3− and dissolved organic carbon, anoxic conditions, and decreased streamflow.