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C David Guzman

@davidguzzy.bsky.social
392 followers 657 following 21 posts

Assistant Prof at UMass Amherst of Civil and Environmental Engineering

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AGU Catchment Hydrology Technical Committee @agucatchhydro.bsky.social · 17/07/2026
Please help us spread the word about our TC-sponsored #AGU26 sessions! We look forward to seeing your submissions!
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WWET Lab @mcbeathlab.bsky.social · 12/05/2026
Congrats to WWET Lab undergrad Hannah Steinbrecher on receiving four honors: Outstanding Senior, Program Engagement & Leadership; Outstanding Senior, Environment & Society; Linda G. Lockwood Environmental Sciences Fund; Shepard Environmental Sciences Fund. Well deserved! @umassamherst.bsky.social
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Agnès Rivière @agnes-river.bsky.social · 04/05/2026
European Geosciences Union HS2.1.9 – Critical Zone Science Around the World: Innovations, Experiments, and Collaboration
Convener: Jeffrey Munroe
Co‑conveners: Heye Bogena, Martin Munashe Chari, Kennedy Doro, Inke Forbrich, Agnès Rivière
Tue 5 May – Orals 08:30–10:15 | Room 2.44
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C David Guzman @davidguzzy.bsky.social · 04/05/2026
Day 1 @egu.eu #EGU26! Lots of great talks, sessions, and events !
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Matthias Sprenger @matthiasprenger.bsky.social · 21/07/2025
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...
H133 - Stable Isotopes in the Critical Zone: Methods, Applications, & Process Interpretations

Session description:
This session aims to bridge bio-hydro-geo-eco communities byshowcasing studies that usestable isotopes to enhance ourunderstanding of the CriticalZone and/or to advancerelevant stable-isotopemethods and applicationtechniques. We particularlywelcome studies thattranscend disciplinaryboundaries and adoptinnovative approaches toimprove processunderstanding.

Invited presenter: Catalina Segura, Oregon State University
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Matthias Sprenger @matthiasprenger.bsky.social · 15/07/2025
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.
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."
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C David Guzman @davidguzzy.bsky.social · 21/07/2025
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!
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Danielle Zoe Rivera @danielle-rivera.bsky.social · 12/07/2025
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
aprecruit.berkeley.edu
Assistant/Associate/Full Professor - Climate Equity and Environmental Justice - Rausser College of Natural Resources
University of California, Berkeley is hiring. Apply now!
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Margaret Zimmer @margaretzimmer.bsky.social · 06/06/2025
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!
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Nitin Singh @nitinsingh.bsky.social · 12/05/2025
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...
academic.oup.com
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
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JP Gannon @jpgannon.bsky.social · 26/03/2025
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...
thinkingthroughteaching.substack.com
Live coding: what is it and why you might want to try it.
Fun, scary, and it works!
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Sean T. McBeath @mcbeath2o.bsky.social · 24/03/2025
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.
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bmcfischer @hydrodroplets.bsky.social · 22/03/2025
💦💦 HAPPY WORLD WATER DAY 💦💦
youtube.com
Turbulence and flow
YouTube video by hydrodroplets
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Eos @eos.org · 22/03/2025
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
Crater Lake in the snowa waterfallbranching river deltas seen from aboveraindrops falling into shallow blue water
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Doerthe Tetzlaff @tetzlaffecohyd.bsky.social · 16/12/2024
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
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Global Ecology 🌐 @global-ecology.bsky.social · 13/12/2024
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/...
science.org
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...
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Natalie Orlowski @nat-iso.bsky.social · 11/12/2024
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
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Michael Meyer @mishafredmeyer.bsky.social · 12/12/2024
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.
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Matthias Sprenger @matthiasprenger.bsky.social · 12/12/2024
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.
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Laura Lautz @llautz.bsky.social · 10/12/2024
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...
new.nsf.gov
Water, Landscape, and Critical Zone Processes (WaLCZ)
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C David Guzman @davidguzzy.bsky.social · 10/12/2024
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
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Lauren McPhillips @lmcp.bsky.social · 10/12/2024
#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' 😃
Metro train interior
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Marit van Tiel @marit-vantiel.bsky.social · 10/12/2024
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"
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C David Guzman @davidguzzy.bsky.social · 09/12/2024
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 !
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Claire G. Griffin @polargriffin.bsky.social · 17/11/2024
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!
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Margaret Zimmer @margaretzimmer.bsky.social · 09/12/2024
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!!!
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C David Guzman @davidguzzy.bsky.social · 08/12/2024
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
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C David Guzman @davidguzzy.bsky.social · 08/12/2024
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
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C David Guzman @davidguzzy.bsky.social · 08/12/2024
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 :)
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C David Guzman @davidguzzy.bsky.social · 07/12/2024
#DCMetro ! Glad #AGU2024 is on the East Coast this year :)
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Cameron Thrash @jcamthrash.bsky.social · 06/12/2024
Source-to-sink pathways of dissolved organic carbon in the river–estuary–ocean continuum: a modeling investigation bg.copernicus.org/articles/21/... #jcampubs
bg.copernicus.org
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 ...
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Dr. Ryan E. Emanuel @waterpotential.bsky.social · 06/12/2024
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
jobs.ncsu.edu
Assistant or Associate Professor of Watershed Hydrology
The Department of Forestry and Environmental Resources at North Carolina State University invites applicants for a 9-month, tenure-track position in Watershed Hydrology. The appointment is 45% researc...
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Jon Duncan @watershedduncan.bsky.social · 06/12/2024
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...
sites.psu.edu
Opportunities | Watershed Ecohydrology and Biogeochemistry Lab
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Matthias Sprenger @matthiasprenger.bsky.social · 04/12/2024
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!
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C David Guzman @davidguzzy.bsky.social · 03/12/2024
The Civil and Environmental Engineering Department @umassengineering.bsky.social @umassamherst.bsky.social is inviting applications for a Lecturer position starting Fall 2025! Application priority deadline is Dec 30, 2024. See link for more info: careers.umass.edu/en-us/job/52...
Campus pond at UMass with students playing hocky on frozen surfaceStream with fall colorsConnecticut River Valley from Mountain Peak
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Marius Floriancic @mfhydro.bsky.social · 30/11/2024
I'm happy to announce that @eurogeosciences.bsky.social session "𝗛𝗦𝟭𝟬.𝟭𝟬 𝗦𝘁𝗮𝗯𝗹𝗲 𝗶𝘀𝗼𝘁𝗼𝗽𝗲𝘀 𝘁𝗼 𝘀𝘁𝘂𝗱𝘆 𝘄𝗮𝘁𝗲𝗿 𝗮𝗻𝗱 𝗻𝘂𝘁𝗿𝗶𝗲𝗻𝘁 𝗱𝘆𝗻𝗮𝗺𝗶𝗰𝘀 𝗶𝗻 𝘁𝗵𝗲 𝘀𝗼𝗶𝗹-𝗽𝗹𝗮𝗻𝘁-𝗮𝘁𝗺𝗼𝘀𝗽𝗵𝗲𝗿𝗲 𝗰𝗼𝗻𝘁𝗶𝗻𝘂𝘂𝗺" organized together with Ginevra Fabiani, Giulia Zuecco, Magali Nehemy & @nat-iso.bsky.social is open for your abstract submissions!
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Bill McKibben @billmckibben.bsky.social · 30/11/2024
Growing wine grapes under solar panels can increase yields by 60%. That seems like the definition of unalloyed good news www.pv-magazine.com/2024/11/29/a...
pv-magazine.com
Agrivoltaics can increase grape yield by up to 60%
French agrivoltaics company Sun'Agri says that two of its facilities increased grape yields by 20% to 60% in 2024, compared to areas without solar panels. The PV modules helped regulate temperature fl...
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Javed Ali, PhD @javedali.bsky.social · 30/11/2024
Our department at UCF has multiple tenure-track Assistant Professor openings. Topics of interest include coastal & water resources engineering, hydrology/hydraulics in urban/coastal areas, hydroinformatics, decision-making under deep uncertainty in the water sector. 🔗 tinyurl.com/ucf-cece-ope...
jobs.ucf.edu
Assistant Professor, Civil and Environmental Engineering - Orlando, Florida, United States
The OpportunityThe Department of Civil, Environmental, and Construction Engineering (CECE) at the University of Central Florida (UCF) in Orlando, Florida, invites applicants for multiple full-time, 9-...
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C David Guzman @davidguzzy.bsky.social · 26/11/2024
#TBTuesday First outing of the semester with the lab group back in October. Hiking #MountSugarloaf. Happy Thanksgiving! @umassamherst.bsky.social @umassengineering.bsky.social
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Tommaso Jucker @tommaso-jucker.bsky.social · 18/11/2024
🧪It's nice to have a space to share some of our work! This one led by Robin Battison that came out recently in @newphyt.bsky.social I'm particulalrly fond of. It showcases how we can use repeat LiDAR to track forest dynamics at scale🛰️🌳 Check it out here: nph.onlinelibrary.wiley.com/doi/full/10....
Tracking variation in tree demography across Australia's Great Western Woodlands using repeat airborne laser scanning (ALS). Panel (a) shows a canopy height model (CHM) of the entire study area (5 × 5 km) generated using ALS data acquired in 2012, while (b) shows variation in topographic wetness index across the same area. Panel (c) corresponds to a 500 × 500 m zoomed in section of the whole CHM, within which the crowns of individual canopy trees can be clearly seen. Changes in tree height between two ALS surveys (2012 and 2021) are depicted in (d), where trees that died or underwent crown dieback are clearly visible in dark brown.
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Prof. David Boutt @davidboutt.bsky.social · 22/11/2024
Local piece on where things are at with the 2024 Fall New England drought @carriehealy.bsky.social www.nepm.org/regional-new...
nepm.org
Rains could assist with the firefighting, hydrogeologist says
David Boutt, a hydrogeologist at UMass Amherst, said the rainfall this week likely won't quash wildfires already in progress — but it will provide some moisture to help reduce the risk.
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hydrotracersuta.bsky.social @hydrotracersuta.bsky.social · 16/11/2024
Check out this new paper on key drivers controlling #tropical #mean #transit #times. www.sciencedirect.com/science/arti...
sciencedirect.com
Key controls on water transit times along a tropical precipitation gradient
The tropics are one of the most diverse and dynamic regions on Earth. Despite their importance, our understanding of tropical hydrological processes r…
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C David Guzman @davidguzzy.bsky.social · 19/05/2024
So many awesome things going on this semester for our group! Dr @acarneiromar.bsky.social & Dr Cielo Sharkus defended their dissertations in March & May and we all celebrated during @umassamherst.bsky.social commencement yesterday! Tim Nsubuga even joined in as a commencement volunteer.
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Amanda Carneiro Marques, Ph.D. @acarneiromar.bsky.social · 26/03/2024
Today I defended my PhD dissertation at @umassamherst.bsky.social! I would like to express my gratitude to my advisors @davidguzzy.bsky.social and Emily Kumpel, my committee members John Tobiason and @davidboutt.bsky.social, and my friends and family for all the support during this journey! 🎓
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Prof. David Boutt @davidboutt.bsky.social · 29/02/2024
Take a look at our recent work on understanding #water table rise in one of the few parts of the US where we are seeing increasing aquifer levels and struggling with understanding where water will rise and at what rates. If you live in Mass fill out survey www.umass.edu/news/article...
umass.edu
UMass Amherst Researchers Need Massachusetts Citizen Scientists’ Help to Model Rising Groundwater | UMass Amherst
First-ever statewide groundwater model provides high-resolution look at how climate change affects water table in Massachusetts—and it needs your data.
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C David Guzman @davidguzzy.bsky.social · 16/02/2024
Why understanding groundwater processes is important, with @davidboutt.bsky.social at our EWRE Spring Seminar! Globally, 2/3rds of stream water spent time as groundwater
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C David Guzman @davidguzzy.bsky.social · 15/02/2024
and this one too! www.youtube.com/watch?v=FH3v...
youtube.com
Make Your Own Salt Brine!
☃️ Snow time this weekend is Brine Time! Instead of using rock salt on your driveway or sidealks, try making your own salt brine! It’s better for the environ...
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C David Guzman @davidguzzy.bsky.social · 15/02/2024
From MassDCR's other social media pages: www.youtube.com/watch?v=gS1p...
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Adam Csank @acsank.bsky.social · 08/02/2024
First post! UNR Geography is hiring a new professor of climatology (associate or assistant prof) to also be the new Nevada State Climatologist. We are looking for an applied climatologist who has an interest in climate services. Please share widely! nshe.wd1.myworkdayjobs.com/UNR-external...
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