C David Guzman

Our primary convener @davidguzzy.bsky.social made this nice flyer for the session. We are happy to have the @segura-lab.bsky.social joining the session as an invited speaker! You all have still 9 days to submit your abstracts on "Stable Isotopes in the Critical Zone": agu.confex.com/agu/agu25/pr...

Screenshot of the abstract submission page for the session at #AGU25 "Stable Isotopes in the Critical Zone: Methods, Applications, and Process Interpretations"

Abstract text: " Natural abundance and enriched stable isotopes are exceptional tracers, contributing to a deeper comprehension of the transport and transformation of water, carbon, and other elements. Their use has led to novel insights into the Critical Zone and the soil-plant-atmosphere continuum. Furthermore, new methodological and technological developments have facilitated using stable isotopes to trace system exchanges and feedback processes on many levels, from micro- to regional-scales. With such advancements, new opportunities and perspectives have arisen, fostering increasingly interdisciplinary approaches to Critical Zone processes. This session aims to bridge bio-hydro-geo-eco communities by showcasing studies that use stable isotopes to enhance our understanding of the Critical Zone and/or to advance relevant stable-isotope methods and application techniques. We particularly welcome studies that transcend disciplinary boundaries and adopt innovative approaches to improve process understanding. Additionally, this session encourages presentations of opinions, perspectives, and syntheses that guide the Critical Zone stable isotope community."

We invite again the stable isotope community to present their research at our long-standing #AGU25 session on "Stable Isotopes in the Critical Zone: Methods, Applications, and Process Interpretations"

agu.confex.com/agu/agu25/pr...

The deadline is by the end of July.

We're excited to announce this session‪ @agu.org
#AGU2025 H133 Stable Isotopes in the Critical Zone: Methods, Applications, & Process Interpretations
agu.confex.com/agu/agu25/pr... w Catalina Segura (Oregon State Univ) as an invited speaker! Additional speakers tbd. Abstracts due 7/30!

Assistant/Associate/Full Professor - Climate Equity and Environmental Justice - Rausser College of Natural Resources University of California, Berkeley is hiring. Apply now!

UC-Berkeley has an open-rank faculty position in our incredible Climate Equity and Environmental Justice (CEEJ) research cluster. It is an extraordinary interdisciplinary group working across multiple colleges and departments at the university! More information here: aprecruit.berkeley.edu/JPF04842

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!

Unraveling the causal influences of drought and crop production on groundwater levels across the contiguous United States Abstract. Groundwater depletion in agricultural-dominated regions is attributed to climate and irrigation withdrawals that support crop production. However

Our paper in Proceedings of The National Academy of Sciences-Nexus shows the relative and long-lasting memory impact of #drought and crop production on #groundwater levels @sheilasaia.bsky.social @ruchibhattacharya.bsky.social @hooriajami.bsky.social academic.oup.com/pnasnexus/ar...

Live coding: what is it and why you might want to try it. Fun, scary, and it works!

This week in writing about teaching: Over the next several weeks, I'm going to explore how I handle teaching students to code in classes that aren't just about coding.

This week: Why live code?

thinkingthroughteaching.substack.com/p/live-codin...

If attending @acs.org‘s #ACSSpring2025, check out Lohita’s presentation tomorrow!

She will be talking about her work related to the electrosorption of organic micropollutants using activated carbon fibres.

YouTube video by hydrodroplets Turbulence and flow

💦💦 HAPPY WORLD WATER DAY 💦💦

Crater Lake in the snow

a waterfall

branching river deltas seen from above

raindrops falling into shallow blue water

It's #WorldWaterDay!

Water your plans for the day? We'll be diving into some Eos stories to celebrate: eos.org/tag/water

PC: WolfmanSF via Wikimedia Commons, Ian Woodhead via Flickr, Alaska Region U.S. Fish & Wildlife Service via Flickr, Unsplash

R u a female ECR (MSc, PhD, postdoc)? We offer Visiting Fellowships in Hydrology/Ecohydrology in my research group in Berlin, Germany on hydrological/ ecohydrological topics: www.igb-berlin.de/tetzlaff
Fellowships 2000€ for 2-4 wks. Send letter of motivation & CV to abteilungsleitung1@igb-berlin.de

More flow upstream and less flow downstream: The changing form and function of global rivers We mapped daily streamflow from 1984 to 2018 in approximately 2.9 million rivers to assess recent changes to global river systems. We found that river outlets were dominated by significant decreases i...

Daily streamflow from 1984 to 2018 in approximately 2.9 million rivers globally. 👉 The numbers set the play!

More flow upstream and less flow downstream. 👉 The title says it all!

Incredible dataset on the hydrosphere awaiting to be crossed with biosphere data!

🧪🌐🌍

www.science.org/doi/10.1126/...

Had a blast presenting my #water #isotope research as invited speaker @agu-h3s.bsky.social
Thanks to @matthiasprenger.bsky.social and colleagues for the invitation

Tomorrow at #AGU24 Im talking on how & why lake trophic state might be changing nationally using Landsat, MERRA-2, MODIS, NADP, Invasive Species, and HydroLAKES, & EPA data. I might be on the stage, but this work stands on the shoulders of the observing systems tasked with collecting these data.

We had a fun "Isotopes in Critical Zone" session dinner tonight and everyone seems ready for the Thursday afternoon poster session at #AGU24. Make sure to stop by and get to know the amazing work.

Water, Landscape, and Critical Zone Processes (WaLCZ)

Day 2 at #AGU24! Join me at the NSF Booth (1101) in the Exhibitor Hall from 4-6pm to learn more about the new Water, Landscape and Critical Zone Processes (WaLCZ) program new.nsf.gov/funding/oppo...

Way to go Raul! Raul is in DC @agu.org presenting on his research (poster on Friday). He's applying to grad schools so if you have a position, let us know! Lots of #AGU24 presentations from #Brown #Andreadis #Gleason Research Groups too @umassamherst.bsky.social @umassengineering.bsky.social

Metro train interior

#AGU24 take advantage of the metro system while you're in DC!
My fun metro story is that back when I was working as a tech at USGS in NoVA after undergrad, I met my future spouse at a metro station on my usual commute. He says 'Ride public transit- you never know who you might meet' 😃

Doing research on mountains and water?🏔️💦🧊❄️ Join our #EGU25 session "Mountain hydrology under global change" (HS2.1.2) - submit an abstract before January 15 ⏰ @danielviviroli.bsky.social @davidharo84.bsky.social

The session is linked to our #IAHS Helping working group "Drought in Mountain Regions"

More scenes from #AGU2024 #CatchmentScience Symposium in DC and @pierregentine.bsky.social 's talk on Memory Processes in Ecohydrology. Great to catch up on all these catchment talks! See you for the next one in #NewOrleans !

Since there's been an uptick in activity arpund these parts, re-sharing the 2024-2025 Earth and Environmental Science Jobs List!

Crowd-sourced list of academic/research jobs - update and share widely!

I’m recruiting graduate students and a postdoc to work on a range of hydrology topics- from water quality in agricultural landscapes to critical zone process (a)synchrony! Interested? Let’s chat at #AGU24!!!

Great discussion and talk by @nanditabasu.bsky.social about "Models, muddles and muggles: rethinking environmental modeling to tackle societal problems" for the last invited talk of pre- @agu.org (not-always-Berkeley) #CatchmentScience Symposium

Low to no snow predicted for some watersheds, punctuated by disturbances, @matthiasprenger.bsky.social at LBL discussing "Water use response to drought by subalpine trees in Rocky Mountains on daily to decadal scales" at the (not-always) Berkeley #CatchmentScience Symposium pre- @agu.org

The 16th Annual (not-always-Berkeley) #CatchmentScience Symposium @johnshopkins.bsky.social Bloomberg Center pre- @agu.org 2024! With James Kirchner and @theoryofciaran.bsky.social kicking it off :)

#DCMetro ! Glad #AGU2024 is on the East Coast this year :)

Source-to-sink pathways of dissolved organic carbon in the river–estuary–ocean continuum: a modeling investigation Abstract. Transport and cycling of dissolved organic carbon (DOC) are active in estuaries. However, a comprehensive understanding of the sources, sinks, and transformation processes of DOC throughout ...

Source-to-sink pathways of dissolved organic carbon in the river–estuary–ocean continuum: a modeling investigation bg.copernicus.org/articles/21/... #jcampubs

North Carolina State University is hiring a tenure track assistant or associate professor of watershed hydrology! This is a great place to work and live. Details below. 👇
jobs.ncsu.edu/postings/210... #academicJobs #academicSky #PhdChat #AGU24 #NCSU #Forestry #NaturaResources

I’m recruiting for graduate students in the areas of 1) high-frequency water quality patterns and ML and 2) interactions of non-perennial streams/wetlands on forest hydrology and biogeochemistry. I’ll be at #AGU2024 next week! More info at:

sites.psu.edu/jmduncan/opp...

Meet me and friends from the Catchment Hydrology technical committee during next week's #AGU24 for lunch. We see this as an opportunity for early career scientists to meet early career peers and get to know the technical committee. It's a great way to get involved!