Reed Maxwell
@reedh2o.bsky.social
📤 224
📥 123
📝 17
Professor of Hydrology. Bike Nerd. maxwell.princeton.edu
reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
1 day ago
⏰ 3 weeks left to submit abstracts for Groundwater Modeling and More 2026: From Raindrop to Reservoir! 📍 Princeton University | June 7–10, 2026 🗓️ Abstracts close March 3, 2026 (5pm EST) 🔗
igwmc.princeton.edu/groundwater-...
#GWM2
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Princeton University
2 days ago
"You always think the closest water is like a lake or a river or stream, but the closest water is beneath your feet." Princeton's
@reedh2o.bsky.social
talks about new research that maps out groundwater below the surface — a vital tool during times of drought.
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Scientists create the most detailed groundwater map yet — with big implications for the West
As much of the Mountain West faces another dry winter, researchers are turning their attention underground to the water many communities rely on but rarely see.
https://www.kunr.org/local-stories/2026-02-02/scientists-create-groundwater-map-implications-for-west
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Reed Maxwell
Eos
15 days ago
If surface water is our checking account and groundwater is our all-important savings account, "we don’t know how much is in our savings account,” said
@reedh2o.bsky.social
. Now, he and his colleagues have developed an estimate.
eos.org/articles/rep...
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Report: 13 Great Lakes’ Worth of Water Underlies the Contiguous United States - Eos
Researchers used 1 million data points and a machine learning algorithm to estimate groundwater stores with higher resolution than ever before.
https://eos.org/articles/report-13-great-lakes-worth-of-water-underlies-the-contiguous-united-states
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Reed Maxwell
Eos
16 days ago
That’s 13 times the volume of all the Great Lakes combined.
eos.org/articles/rep...
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Report: 13 Great Lakes’ Worth of Water Underlies the Contiguous United States - Eos
Researchers used 1 million data points and a machine learning algorithm to estimate groundwater stores with higher resolution than ever before.
https://eos.org/articles/report-13-great-lakes-worth-of-water-underlies-the-contiguous-united-states
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
22 days ago
Abstract submission is now open for Groundwater Modeling and More 2026: From Raindrop to Reservoir. 📍 Princeton University | June 7–10, 2026 🗓️ Deadline: March 3, 2026 (5pm EST) 🔗
event.fourwaves.com/gmm26/pages
@reedh2o.bsky.social
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For all we know about the planet, we still don't really know how much freshwater we have. Surface water? About 1% of the total. The rest is groundwater — varying wildly over short distances, poorly observed, hard to model.
26 days ago
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
about 1 month ago
🎲🌋 Games for Geoscience at
#EGU26
! Session EOS1.3 highlights games and gamified approaches to geoscience teaching and learning. Abstract submissions close Jan 15 — submit yours today! 🔗
games4geoscience.wordpress.com/egu-games-day/
@reedh2o.bsky.social
@egu.eu
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
about 1 month ago
AGU 25 — IGWMC edition 🌎 Posters, talks,
#hydrology
,
#machinelearning
, community, and lots of great conversations. So grateful for everyone who made this week what it was. Already looking ahead to doing it all again at AGU 26!
#AGU25
@reedh2o.bsky.social
@agu.org
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
about 2 months ago
Save the date! 📅 Join us for Groundwater Modeling and More 2026: From Raindrop to Reservoir, June 7–10, 2026 at Princeton University. A refreshed name, new formats, and longstanding traditions. More details coming soon!
@reedh2o.bsky.social
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Thanks so much for entrusting me to kick off
#USRSE25
! What a great conference and a super engaged audience. So much fun
add a skeleton here at some point
4 months ago
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
5 months ago
What’s an aquifer? It’s layers of rock or sediment that hold and move water underground —like a hidden reservoir beneath our feet. We demo this with both a physical & virtual model for outreach events. Curious? Ask us more!
#Groundwater
#Hydrology
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
5 months ago
💧 Water science has a language all its own. Here’s a quick look at some essential hydrology terms—perfect for students, educators, and water nerds alike.
#Hydrology
#WaterScience
🔁 Repost to help folks learn the lingo!
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
6 months ago
💧
#FunFactFriday
💧 Billions of people rely on groundwater every day—but most don’t even know it! 💧🌍 Do you know where your water comes from? 👇
#WaterFacts
#Hydrology
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
6 months ago
Discussions are beginning around a possible MODFLOW & More Conference in 2026.💧We’d love your input as we consider options. Please take a few minutes to complete our short survey:
igwmc.princeton.edu/modflow-2026...
Also, check out 2024 highlights + past short course info
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
6 months ago
IGWMC led a hydrology unit for QUEST teachers last week! 💧 Participants learned how Earth’s water is distributed through the
#Freshwater
#Saltwater
Challenge, then used
#aquifer
models to explore groundwater flow and aquifer types.
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
6 months ago
Students took on Water and Climate Week at @thewatershedinstitute —exploring
#hydrology
,
#modeling
,
#ML
,
#coastalhydrology
&
#SciComm
. The week ended with climate art inspired by places they love.
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
7 months ago
Ever wondered how hydrologists observe water movement over time? A hydrograph shows streamflow changes from rain, snowmelt, and more. We use them to study floods, seasonality, and how water moves through landscapes.
#Hydrology
#Groundwater
#Hydrograph
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
8 months ago
As groundwater flows through layers of soil and rock, those materials help filter out impurities. 💧⏳ That’s why water from aquifers often needs less treatment than surface water. What’s a cool science fact you love? Drop it below! ⬇️
#FunFactFriday
#WaterScience
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
8 months ago
We were so excited to be invited to facilitate Mole Day at Foundations Academy Charter School on June 2! Students explored water science through aquifer models, crafting water cycle bracelets, and taking the freshwater challenge.💧
#STEM
#WaterEducation
#MoleDay
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Climate Science Breakthrough
8 months ago
US climate scientists need all the help they can get. Including from foul-mouthed comedians! 🤡😱😱 Watch Emmy Award-Winning David Cross team up with Prof Michael Oppenheimer in the US launch of the hit series "Climate Science Translated".
#climate
#arresteddevelopment
#climatescience
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
9 months ago
We’re sending a big congratulations to 3 graduating undergrads from PU’s Class of 2025! 🎓These 3 have done great work with HMEI and the IGWMC. 👩🔬Ashley DeFrates 🌍Brooke Beers 💧 David van Velden We can’t wait to see what’s next!
#Princeton25
#Research
@acee.princeton.edu
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
9 months ago
📢 Registration is now OPEN for IGWMC’s Summer 2025 Short Courses! We’re offering hands-on sessions in groundwater modeling, hydrologic systems, and open-source tools. Register here:
princeton.irisregistration.com/Form/Short25
@reedh2o.bsky.social
#groundwater
#hydrology
#training
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reposted by
Reed Maxwell
Nature Portfolio
9 months ago
A study in Communications Earth & Environment finds that snowmelt runoff in the western US is composed primarily of older groundwater, dating back 5.7 years on average.
go.nature.com/4iXF5ZX
⚒️ 🧪
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
9 months ago
Ever wondered how groundwater moves? Our physical sandtank models show it firsthand at outreach events! 💧 Plus, the ParFlow Sandtank lets you explore these processes online—adjust flow, contamination, & more in real time!
sandtank.hydroframe.org
#Hydrology
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
9 months ago
We're co-hosting the 2025 Kimberly-Clark Distinguished Lecture! 🗓 May 16 | 🕥 10:30AM 📍 E225, EQuad Prof. Rainer Helmig (U. of Stuttgart) “Porous Media Free-Flow Coupling – From REV to Pore Scale and Back”
#PorousMedia
#Hydrology
#Groundwater
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
9 months ago
📣 IGWMC’s Summer 2025 short courses are in the works! We’re offering sessions on modeling, hydrologic systems, & more. The interest form will remain open until registration is live—stay tuned. 🔗
igwmc.princeton.edu/events/short...
#groundwater
#hydrology
#training
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
10 months ago
Some groundwater fluoresces under UV light thanks to a variety of organic compounds, like humic acids! 💡💧 Know a wild science fact? Drop it below! ⬇️
#FunFactFriday
#WaterScience
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
10 months ago
🎉 It’s game day! The Games for Geoscience session is happening today at
#EGU25
! 🎲 Come explore how games, gamification, and immersive technologies are transforming outreach, research & education in the geosciences.
#Games4Geo
#EGU25
#SciComm
#GamifyLearning
@egu.eu
@reedh2o.bsky.social
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Thanks for the highlight,
@kinarnicholas.bsky.social
! Honored for this work to be the hydro paper of the day.
add a skeleton here at some point
10 months ago
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
10 months ago
🕹️ Game on! From VR to board games, explore how play powers science during Games for Geoscience at
#EGU25
🎲 Discover how game-based learning boosts comprehension, resilience, and engagement.
#SciComm
#Games4Geo
#Education
@egu.eu
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
10 months ago
🚨IGWMC at
#EGU25!🚨
From deep learning to disaster recovery, we're showing work on groundwater science all week long 🌍💧 Come support our researchers & collaborators presenting throughout EGU 🧵👇
#Hydrology
@egu.eu
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
10 months ago
This Arbor Day, shout out to trees for powering the water cycle! 🌳 Through evapotranspiration, they move water from soil to sky, shaping local climate and rainfall. Hydrology isn’t just rivers—it’s forests too! 💧☁️
#ArborDay
#Hydrology
#WaterCycle
#Evapotranspiration
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
10 months ago
🎲 Games spark imagination and shift perspectives—perfect for science communication, teaching, and resilience-building 🌍 Join Games for Geoscience at
#EGU25
to explore how play is reshaping outreach, research & education!
#Games4Geo
#SciComm
#Education
@egu.eu
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
10 months ago
Flashback to Water and Climate Academy week! 🌊 Students explored how water science connects to climate change—diving into hydrological topics—then shared insights through science communication.
@reedh2o.bsky.social
#FlashbackFriday
#Hydrology
#MachineLearning
#SciComm
#ClimateChange
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
10 months ago
Spring Into Science 2025 was a blast! 🔬💧 Students explored aquifer models, our density tank & met Jerome the Drone 🚁. Great to see young scientists dive into water sustainability! 💙
#SpringIntoScience
#Hydrology
#STEM
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
10 months ago
Some groundwater is under so much pressure that it flows to the surface without the need for pumping! 🌊 What’s a surprising water fact you know? Tell us below! ⬇️
#FunFactFriday
#WaterCycle
@reedh2o.bsky.social
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The fact that my awesome group is excited to teach kids about water makes me so happy. Hope this brightens your feed.
#maxwellgroupadventures
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11 months ago
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reposted by
Reed Maxwell
Meredith Martin
11 months ago
You can get my book even though it still says "pre-order"!
press.princeton.edu/books/paperb...
(for a 30% discount, use code P327 on the PU Press website)!
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Poetry's Data
Why literary studies must confront digital mediation
https://press.princeton.edu/books/paperback/9780691254678/poetrys-data
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
11 months ago
🌍💧 Happy
#WorldWaterDay
! Glaciers store & slowly release water, feeding rivers & groundwater. But rapid melting disrupts this balance, threatening water supplies. Protecting these icy lifelines secures our future!
#GlacierPreservation
#Groundwater
@reedh2o.bsky.social
@un-water.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
11 months ago
#FlashbackFriday
to Spring Into Science 2024! 💧🔬 Students explored aquifer models, a density tank & met Jerome the Drone 🚁. Come see us for Spring Into Science 2025 on April 5!
#STEM
#Outreach
@reedh2o.bsky.social
Sign up:
scienceoutreach.princeton.edu/events/2025/...
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
11 months ago
How do disasters shape learning?🌏 A decade after Super Typhoon Haiyan, this study analyzed 15K+ news articles, 300 papers & survivor stories to understand recovery & resilience.
@reedh2o.bsky.social
#DisasterRecovery
#Resilience
#RiskComms
www.nature.com/articles/s44...
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Public discourses and personal narratives of learning from disaster - npj Climate Action
npj Climate Action - Public discourses and personal narratives of learning from disaster
https://www.nature.com/articles/s44168-025-00227-4
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reposted by
Reed Maxwell
Zack Labe
11 months ago
Hi - I'd like to share this story of what is happening at NOAA GFDL, where some of my colleagues and I worked until the mass firings at NOAA last week. "...the birthplace of weather and climate forecasting"
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NOAA firings hit the birthplace of weather and climate forecasting
Dismissed researchers were improving severe weather predictions
https://www.science.org/content/article/noaa-firings-hit-birthplace-weather-and-climate-forecasting
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
12 months ago
Jerone the Drone gives us a new view of water! 🚁💧 Its high-res images of temperature & elevation reveal patterns in soil moisture, terrain & hidden details—like dense vegetation and even wildlife! 🌍
#RemoteSensing
@reedh2o.bsky.social
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Reed Maxwell
Laura Lautz
12 months ago
Yesterday was the darkest day of my professional life so far. Many of NSF’s best and brightest people fired indiscriminately. The terms of their firing cruel. My colleagues matter, they are valued and they make a difference. I have no words.
www.npr.org/2025/02/18/n...
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National Science Foundation fires roughly 10% of its workforce
NSF fired 168 employees, leaving the agency less equipped to fund a wide range of scientific research.
https://www.npr.org/2025/02/18/nx-s1-5301049/national-science-foundation-fires-roughly-10-of-its-workforce
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
12 months ago
💙 Water has our hearts this Valentine’s Day! 💧🌍 Let’s celebrate our love for hydrology and the hidden water that sustains us.
#ValentinesDay
#HydrologyLove
#WaterScience
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
about 1 year ago
Flashback to QUEST 2024! 💧 This program helps K-12 educators with science & math teaching. One week, led by
@reedh2o.bsky.social
& the IGWMC team, explored hydrology by interfacing with real data, modeling, and using interactive tools. 📸 PC: Sameer Khan, Photobuddy
#FlashbackFriday
#Hydrology
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
about 1 year ago
💧 Hydrologic models often oversimplify water systems. This method brings in small-scale channel details to improve predictions without increased computational costs!
www.frontiersin.org/journals/wat...
#Hydrology
#WaterModeling
@reedh2o.bsky.social
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Frontiers | Subgrid channel formulation in an integrated surface-subsurface hydrologic model
https://www.frontiersin.org/journals/water/articles/10.3389/frwa.2024.1520913/full
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
about 1 year ago
🌊 How does groundwater impact coastal flooding? A Princeton Alliance for Collaborative Research and Innovation (PACRI) project between UMES and IGWMC is tackling this question in the Chesapeake Bay. Research and education driving innovation!
#ClimateChange
#Hydrology
@reedh2o.bsky.social
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reposted by
Reed Maxwell
Integrated GroundWater Modeling Center
about 1 year ago
💧 Heavy groundwater pumping can worsen sea-level rise and saltwater intrusion. This study by
@reedh2o.bsky.social
uses machine learning to map groundwater changes in coastal New Jersey—guiding sustainable water management.
#Groundwater
#ClimateResilience
www.frontiersin.org/journals/wat...
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Frontiers | Integrating groundwater pumping data with regression-enhanced random forest models to improve groundwater monitoring and management in a coastal region
https://www.frontiersin.org/journals/water/articles/10.3389/frwa.2024.1509945/full
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