Very happy to see Onça Creek crowned as the winner of the #CatchmentCup2025! 🏆💧 Special thanks to @agu-h3s.bsky.social for organizing and promoting this fun event! It’s a great way to celebrate our global #Hydrology community!!!!

Keep those votes rolling in for #CatchmentCup2025! The first catchment in our championship round is the Onca Catchment located in Brazil! The Onca Catchment is the longest continuous monitoring of an outcrop area of ​​the Guarani Aquifer System from 2000 to the present day... (1/2)

HUGE HYPE for our #CatchmentCup2025 WINNER by overwhelming majority: the ONÇA Catchment in Brazil!!! Thank you to everyone who voted for their favorite catchments throughout the past month to make this all possible. Happy last day of Catchment Cup and Happy Halloween 🎃 from AGU H3S! 🎉🎉🎉

IT'S TIME TO DETERMINE YOUR #CatchmentCup2025 WINNER! Our final two catchments are ONCA and JAGUARIBE (both named after jaguars!)! Keep an eye out for facts about these wonderful catchments posted today and VOTE for your winner at www.agu-h3s.org/rivercup until TOMORROW at 5 pm ET!!!

Say hello to your FINAL FOUR: Onca, Jaguaribe, McMurdo, and Yangtze!!! Stay tuned till TOMORROW to vote down to the TOP TWO catchments in #CatchmentCup2025 !!!

💧 Ontem realizamos mais um #HidroTalk da CT Jovem da ABRHidro: “A Água como um Todo: Caminhos para uma Gestão Hídrica Integrada” onde discutimos a importância da gestão integrada, comparando desafios e oportunidades entre Brasil e EUA. Assista à live: www.youtube.com/live/OhdsYQi...

Happy Friday!! Here are your #CatchmentCup2025 Great Eight!! Its time to NARROW down to the Fabulous Four! You have until Tuesday 10/28 to vote and check out the amazing papers from these sites here: www.agu-h3s.org/rivercup

I’m grateful to share that I am officially a #PhD candidate! I successfully defended my qualifying exam. I want to thank everyone who supported me on this journey.

Your Round 2 #CatchmentCup2025 Snow-dominated catchments are #HubbardBrook and #McMurdo !!! www.agu-h3s.org/rivercup Stay tuned for the last Round 2 match ups starting TOMORROW at 9 am ET!!

Hydrology Paper of the Day @gescilam.bsky.social on quality control, validation and standardization of groundwater data for Brazil: removing duplicate data with uncertain provenance; matching the purpose of groundwater wells with water sector use; and mapping well density and water levels.

let’s hear it for the winners of the first half of Round 2 of #CatchmentCup2025! Your #headwater senifinalists are the ONÇA and WALNUT GULCH! Your #rain-doninated semifinalists are the JAGUARIBE and PANOLA! Be sure to come back here on Monday, 10/20 for the next round: #snow-dominated catchments!

It’s always a pleasure to be featured in the Hydrology Paper of the Day. Thank you! This year, I'll be at #AGU25! Let’s connect and talk about how #opendata can help advance #integratedwatermanagement and #science–policy dialogue in Brazil and beyond. 🌎 📍 Thursday, 18 Dec 2025 | 2:15–5:45 pm CST

For the first matchup in Round 2: Rain-Dominated catchments, we have Jaguaribe vs Eel River! CHECK THIS THREAD for more fun facts about these important catchments, and don’t forget to vote at www.agu-h3s.org/rivercup by 4pm PT TODAY (10/16)

it’s the final countdown!!! one hour remains to get your votes in for your favorite #headwater catchments in round 2 of Catchment Cup 2025!!! head over to agu-h3s.org/rivercup by 4pm PT to cast your vote for the world’s most remarkable headwaters!! winners for the round will be announced at 5pm PT!

For the first matchup in Round 2: Headwater catchments, we have Onça vs Jatunhuaycu! CHECK THIS THREAD for more fun facts about these important catchments, and don’t forget to vote at www.agu-h3s.org/rivercup by 4pm PT TODAY (10/15)

1/3 We recently published “A Groundwater Well Database for Brazil (GWDBrazil)” in Scientific Data rdcu.be/eKNKh We also published an application of this database in Nature Communications: “Widespread potential for streamflow leakage across Brazil” rdcu.be/eKNKB

Welcome back to another round of #CatchmentCup2025! In our final matchups of round 1, eight HUMAN-IMPACTED catchments will compete head to head! Cast your votes at www.agu-h3s.org/rivercup until TOMORROW (10/14) 5 pm ET, and stay tuned for facts posted throughout the day about these catchments!

Drumroll please.....the winners of round 1's snow-dominated catchments are..... HUBBARD BROOK, EAST RIVER, BURABAY, and MCMURDO!!! Some of these matchups were close so keep those votes coming for human-dominated catchments starting next week, 10/13!!! #CatchmentCup2025

I’m very happy to have contributed to Ana Guedes’ master’s research, now published in the Journal of Environmental Engineering! In this study, we investigated a high-permeability vertical barrier for waste isolation using a sandbox experiment, analytical solution, and numerical model.

The votes are in!!! Check out your Round 1 #CatchmentCup2025 Headwater WINNERS!!! See you tomorrow for the next round for Rain-dominated catchments!

In my new Kudos blog, I try to explain, in common language, our new paper: “A groundwater well database for Brazil (#GWDBrazil)” published in Scientific Data. Read the blog: link.growkudos.com/1pzjabd1yww #ScienceCommunication #waterscience

We hope that everyone had a happy first day of the 2026 Water Year! Tomorrow is the first day of Catchment Cup! Check back in the morning when the first round of polling opens up for Headwater Catchments! We are so excited to share facts and research from early career researchers at these sites!

A groundwater well database for Brazil (GWDBrazil) ->Nature | #Groundwater | More from BigEarthData.ai

Hi everyone! Excited to share our new paper: “A groundwater well database for Brazil (GWDBrazil)” published in Scientific Data: www.nature.com/articles/s41... In partnership with Geological Survey of Brazil

🌍 New blog post! I present the study ‘Severe droughts reduce river navigability and isolate communities in the Brazilian Amazon’, which examines how #drought impacts community isolation in the #Amazon River basin. Read more on the AGU Water & Society TC blog👉 linkedin.com/feed/update/...

🌊 This week in our #AGU25 #CatchmentHydrology Early Career series, we highlight: “Deciphering surface water–groundwater connectivity using chemical and stable isotope tracers (H and O) in the headwaters of São Francisco River, Brazil” by Marcela Aragão et al. (2025).

🌡️ This week I highlight human-perceived heatwaves in Brazil 🇧🇷. A study by Ballarin et al. (2025) projects major increases in exposure, especially in São Paulo & Minas Gerais—both nearly quadrupling. Read more on the AGU Water & Society TC blog 👉 www.linkedin.com/feed/update/...

Hydrology Paper of the Day @gescilam.bsky.social on groundwater levels in Brazil and how streams are losing water: a geography of river classifications; agricultural use and arid conditions; climatic drivers and river connectivity determined by remote sensing; and a novel Effective Catchment Index.

🌊 This week we highlight the paper: “Widespread Potential for Streamflow Leakage Across Brazil” by @gescilam.bsky.social et al. (2024). ✨ Every two weeks until #AGU25, we’ll feature a publication in #CatchmentHydrology from an early career scientist who shared their work with us.

Earlier this year, we invited undergrads, grad students & postdocs with recent publications in #catchmenthydrology to share their work with us📄 Starting now, we’ll highlight one of these papers every two weeks until #AGU25 — helping #earlycareer scientists spread their research!🚀

🚨 The #AGU Catchment Hydrology TC Student Competition closes August 31! Please help us spread the word to undergrads, grad students, and postdocs working in #catchment #hydrology. 🌊 📌 Full details in our last post and on the TC website. #EarlyCareerScientists #StudentOpportunity

Inviting submissions to our session! 💧🌎 SESSION H048 - Challenges and Solutions for Hydrologic Scaling Across Multiple Processes and Scales See the link below: agu.confex.com/agu/agu25/pr... Shout out to: @agucatchhydro.bsky.social @agu-h3s.bsky.social @agu.org

🌎 Headed to #AGU25? Consider submitting your abstract to our session on Runoff Generation Processes: Exploring Thresholds, Sources, and Pathways from Plot to Continental Scales. 💧🌱🌍 🗓️ Deadline: July 30, 2025 🔗 Session info: agu.confex.com/agu/agu25/pr...

🌎 Are you attending #AGU25? Consider submitting your abstract to our session on Impacts of Global Change and Extreme Events on Hydrological and Biogeochemical Systems. 🗓️ Deadline: July 30, 2025 🔗 Session info: agu.confex.com/agu/agu25/pr... 💧🔥🌱

📣 Calling all science communicators! Let’s explore creative ways to share research and connect with broader, interdisciplinary, and community audiences.🎨🧠📢 🗓️ Join us! #AGU2025 #ScienceCommunication

AGU H3S invites you to contribute to our session at #AGU25 Hydrology Student, Postdoc, and Early Career Flash Talks! This session highlights research performed by fellow Early Career Researchers within the field of Hydrology. Conveners: Matthew Preisser and Kathryn Moore

AGU H3S invites you to submit an abstract to our session at #AGU25 Thinking Outside the Box Plot: Communicating Science Beyond the Paper! The session explores creative ways to communicate research. Conveners: @adischner.bsky.social @acarneiromar.bsky.social @gescilam.bsky.social Cee Nell Emily Ellis

💧 A CT Jovem da ABRHidro tem o prazer de promover mais um #Hidrotalk: "Sem Medição, Sem Gestão: A Relevância do Monitoramento na Ciência Hidrológica", com Prof. Davi Melo, e as doutorandas Carolina Quaggio e Fernanda Souto. www.youtube.com/watch?v=YQkc...

1/1 🌍 The #AGU Catchment Hydrology TC Student Competition is now open! Open to undergrads, grad students & postdocs! 🎓 Share a field or modeling study focused outside the US/Europe (global studies welcome!). Submit your <100-word entry here: 📌 padlet.com/msprenger2/f...

💧 Attending #EGU2025 and interested in GW–SW interactions? Don’t miss our presentation! We compiled & standardized data on 351,000+ wells across Brazil (1900–2024) in collaboration with Geological Survey of Brazil 🇧🇷 A valuable resource for integrated water management! 🌎💦

Thank you @kinarnicholas.bsky.social for sharing our article on @eos.org! Always a pleasure to follow your Hydrology Paper of the Day series—such a great way to stay connected with the latest in hydrology. 🌊📚

Grateful for the opportunity to share our findings in @eos.org on river–aquifer interactions in Brazil 🌊💧 (rdcu.be/egq5l). We highlight the widespread prevalence of potentially losing streams — hoping to support more integrated groundwater – surface water management in the country.

Water pumping can make rivers leak underground. It’s happening all over Brazil. eos.org/articles/bra...

The #AGU Catchment Hydrology TC wants to highlight your recent work! If you’re an undergrad, grad student, or postdoc with a recent publication from the last 6 months, we’d love to feature it on our social media. Submit your paper here 👉 forms.gle/7zHyarnmYZxX...

Thanks, @agucatchhydro.bsky.social, it was fun to participate in the #AGU Catchment Hydrology TC #EarlyCareer Competition last year. I hope to participate again this year.

Hydrology Paper of the Day @agucatchhydro.bsky.social on human-observable indicators of soil wetness: qualitative observation classes related to quantitative datasets; field testing conducted in the Alpthal valley of Switzerland; three test datasets; and statistical method validation.

AGU urges the Trump administration to immediately renew U.S. federal commitment to climate science. The U.S. must restore critical climate science leadership for a secure, prosperous future for the country and the world. Read AGU’s statement here: news.agu.org/press-releas...

AGU is committed to supporting our members through challenges affecting the scientific community. Whether you need career resources, mentorship, policy advocacy tools, or publishing support, we’re here to help.

Amongst all of this, our students are still publishing excellent papers. My recent Masters student Annie Holt, now at NWS, shows how geologic age and (region-dependent) wetland fraction metrics can be used to improve our predictions of baseflow in watersheds across the U.S.: doi.org/10.1002/hyp....

1/4 Yesterday was an extraordinary day in my #earlycareer as a researcher in Brazil. My master's/doctoral research (nature.com/articles/s41...) was featured on two of the largest open TV channels in #Brazil.