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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
Call for abstract promotional graphics on a white background. The event title reads “Groundwater Modeling and More: From Raindrop to Reservoir,” followed by the dates “June 7 - June 10, 2026”. A thin blue line appears underneath that. The text “Call for Abstracts!” followed by the link to abstract submission, the text “Open January 20th Close: March 3rd” and the location “Princeton University, Princeton, New Jersey.” A second thin blue line appears below the text, with the “Integrated GroundWater Modeling Center” centered under the line and the IGWMC logo under that.
January 20, 2026 at 4:20 PM
igwmc.bsky.social
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
A digital graphic with a teal background featuring the text “Where Science Connects Us” and the AGU25 logo at the top. A dark blue wavy line runs horizontally across the design behind a photo of a diverse group of smiling people standing in front of an AGU backdrop, with a white AGU sign placed on the ground in front of them. Below the photo, the IGWMC logo and the Princeton University shield logo appear in the bottom left corner. A 12-photo collage highlighting poster presentations, conversations, and virtual research displays. An eight-photo collage highlighting oral presentations, set on a teal background. Dark blue squiggly lines intersect and weave between several of the photos, which show presenters speaking and engaging with audiences during oral presentation sessions. A four-photo collage on a teal background with two dark blue squiggly lines at the top and bottom. The images include a two-tone blue AGU sign, two photos from a group dinner, and a playful group photo at the bottom showing a sillier moment.
January 12, 2026 at 8:27 PM
igwmc.bsky.social
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
Save the Date promotional graphic on a white background. At the top, the text “Save the Date!” appears with a thin blue line beneath it. Below, the event title reads “Groundwater Modeling and More: From Raindrop to Reservoir,” followed by the dates “Sunday June 7 to Wednesday June 10, 2026” and the location “Princeton University, Princeton, New Jersey.” A second thin blue line appears below the text, with the IGWMC logo centered at the bottom.
December 22, 2025 at 7:23 PM
igwmc.bsky.social
Here’s the schedule for tomorrow’s sessions (12/18) at #AGU25— don’t miss the IGWMC researchers sharing their work tomorrow! See you there for another exciting day!
#Geoscience #AGU2025 #EarthScience #ClimateAction #AGU @reedh2o.bsky.social @agu.org
Graphic featuring an AGU25 conference schedule for Thursday 12/18 overlaid on a purple background with a decorative squiggly line. On the top, there is a photograph of two women who appear to be studying from a book and laughing outdoors at a wooden table. Presentation listings include times, room numbers, and poster hall designations. A QR code appears in the bottom right corner of the photograph. The AGU25 logo with the text ‘Where Science Connects Us’ is placed at the bottom left.
December 18, 2025 at 2:30 AM
igwmc.bsky.social
Here’s the schedule for tomorrow’s sessions (12/17) at #AGU25— don’t miss the IGWMC researchers sharing their work tomorrow! See you there for another exciting day!
#Geoscience #AGU2025 #EarthScience #ClimateAction #AGU @reedh2o.bsky.social @agu.org
Graphic featuring an AGU25 conference schedule for Wednesday 12/17 overlaid on a teal background with a decorative squiggly line. On the left, there is a photograph of a person in a red coat holding a large translucent research balloon in a snowy landscape. Presentation listings include times, room numbers, and poster hall designations. A QR code appears in the bottom left corner. The AGU25 logo with the text ‘Where Science Connects Us’ is placed at the bottom right.
December 17, 2025 at 1:38 AM
igwmc.bsky.social
Here’s the schedule for tomorrow’s sessions (12/16) at #AGU25— don’t miss the IGWMC researchers sharing their work tomorrow! See you there for another exciting day!
#Geoscience #AGU2025 #EarthScience #ClimateAction #AGU @reedh2o.bsky.social @agu.org
Graphic featuring an AGU25 conference schedule for Tuesday 12/16 overlaid on a green background with a decorative squiggly line. On the top, there is a photograph of a person looking up in a sandy landscape. Presentation listings include times, room numbers, and poster hall designations. A QR code appears in the bottom right corner of the photograph. The AGU25 logo with the text ‘Where Science Connects Us’ is placed at the bottom left.
December 16, 2025 at 4:04 AM
igwmc.bsky.social
Here’s the schedule for tomorrow’s sessions (12/15) at #AGU25— don’t miss the IGWMC researchers sharing their work tomorrow!
#Geoscience #AGU2025 #EarthScience #ClimateAction #AGU @reedh2o.bsky.social @agu.org
Graphic featuring an AGU25 conference schedule for Monday 12/15 overlaid on a teal background with a decorative squiggly line. On the left, there is a photograph of a person in a red coat holding a large translucent research balloon in a snowy landscape. Presentation listings include times, room numbers, and poster hall designations. A QR code appears in the bottom left corner. The AGU25 logo with the text ‘Where Science Connects Us’ is placed at the bottom right. Graphic featuring an AGU25 conference schedule for Monday 12/15 overlaid on a teal background with a decorative squiggly line. On the left, there is a photograph of a person in a red coat holding a large translucent research balloon in a snowy landscape. Presentation listings include times, room numbers, and poster hall designations. A QR code appears in the bottom left corner. The AGU25 logo with the text ‘Where Science Connects Us’ is placed at the bottom right.
December 15, 2025 at 1:23 AM
igwmc.bsky.social
Our team is excited to share our #AGU25 presentation schedule! Check out when we’re presenting next week and stop by to learn more about our research. Use the QR code for more info #Research #IGWMC #ScienceInAction #Hydrology #ScienceEducation @reedh2o.bsky.social @agu.org
Graphic for AGU25 conference schedule with a green background and dark green squiggly line across the top. The heading reads ‘AGU25.’ Below are presentation listings for Monday 12/15 through Thursday 12/18 with speaker names, times, and titles. A QR code is displayed on the right side of the schedule.
December 12, 2025 at 1:35 PM
igwmc.bsky.social
Less than one week until #AGU25 kicks off! The IGWMC is proud to have some amazing researchers attending this year. Click through the thread to meet them and learn more about the groundbreaking work they’re doing! #Research #IGWMC #ScienceInAction #Hydrology #ScienceEducation @reedh2o.bsky.social
A digital promotional graphic on a teal background displaying the text “WHERE SCIENCE CONNECTS US,” the Integrated GroundWater Modeling Center (IGWMC) logo, and “at AGU25.” A dark blue wavy line stretches horizontally across the design. Below, it reads “One more week until #AGU25! Let’s learn about our presenters!” The bottom left features the Princeton University shield logo.
December 10, 2025 at 2:06 PM
igwmc.bsky.social
💧 #FunFactFriday 💧
Some deep-rooted plants survive dry seasons by sipping straight from the water table, even sharing water with shallow-rooted neighbors along the way! 🌱💧 Know any deep-rooted species near you? 👇 #WaterFacts #Hydrology @reedh2o.bsky.social
A light blue square graphic with bold black text at the top reading ‘Fun Fact Friday with the Integrated GroundWater Modeling Center.’ Below, the IGWMC logo features stylized blue and black text with a wave design. A white rounded rectangle contains bold black text saying ‘DID YOU KNOW?’ followed by a fact in smaller black font ‘Deep-rooted plants, like mesquite trees, tap directly into groundwater at the water table with root systems that can reach depths of up to 70 meters! This ability allows them to survive extended dry seasons without rainfall.’
October 3, 2025 at 12:46 PM
igwmc.bsky.social
💧 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
A graphic with four blue boxes surrounding a central white circle that says "Let's Learn Some Hydrology Lingo." Each box contains a hydrology-related term and its definition: Top left: "Evapotranspiration – The process by which water is transferred from land to the atmosphere through evaporation, the conversion of liquid water to vapor from soil and surfaces, and transpiration, the release of water vapor from plants." Top right: "Precipitation – Water that falls from the atmosphere to earth’s surface as a liquid or solid." Bottom left: "Runoff – A portion of water from precipitation that does not infiltrate into the ground and flows over the land surface, ending up in streams, rivers, or other surface waters." Bottom right: "Hydrology – The science of water which deals with the properties, distribution, and circulation of water on and below the earth's surface and in the atmosphere." At the bottom is the logo for the Integrated GroundWater Modeling Center (IGWMC).
September 12, 2025 at 12:55 PM
igwmc.bsky.social
💧 #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
A light blue square graphic with bold black text at the top reading ‘Fun Fact Friday with the Integrated GroundWater Modeling Center.’ Below, the IGWMC logo features stylized blue and black text with a wave design. A white rounded rectangle contains bold black text saying ‘DID YOU KNOW?’ followed by a fact in smaller black font ‘Over 2 billion people worldwide rely on groundwater as their primary source of drinking water. This includes both urban and rural populations, and many major cities pump groundwater to meet public water supply needs.’
August 29, 2025 at 12:05 PM
igwmc.bsky.social
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
Promotional graphic with a blue curved border design. Text announces that the Organizing Committee has started planning discussions for a possible MODFLOW & More Conference in 2026 and invites people to complete a short survey to help guide early conversations. A central QR code links to the survey. Below, two additional QR codes provide access to highlights from 2024 and short course information. The bottom includes the IGWMC logo and the Princeton University shield.
August 22, 2025 at 11:49 AM
igwmc.bsky.social
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
A group sits at a table engaged in discussion on the distribution of saltwater and freshwater on earth. On the table are tall cups of blue liquid that are meant to represent the proportion of saltwater and freshwater on earth. PC: Jasmine Pinchinat / Community Organizer A group gathers around a table, exploring freshwater distribution with stacks of LEGO bricks. Each stack represents the proportion of freshwater in different reservoir types, sparking discussion and engagement among participants. PC: Jasmine Pinchinat / Community Organizer Three adults engage with a physical aquifer model demonstration. One woman injects dye into the tank to simulate contamination, while the other two observe the spreading dye and groundwater flow. PC: Jasmine Pinchinat / Community Organizer Lisa Gallagher, Education and Outreach Specialist, stands at the front of a classroom instructing a group of teachers. The participants are seated and listening attentively, with presentation materials visible in the background. PC: Jasmine Pinchinat / Community Organizer
August 15, 2025 at 12:31 PM
igwmc.bsky.social
We want your input! 📝 IGWMC is gathering feedback to enhance our short courses. Share your thoughts on timing, pricing, and delivery formats in this quick survey:
igwmc.princeton.edu/short-course...
Your input helps make a difference!
#groundwater @reedh2o.bsky.social
Light blue and dark blue graphic promoting the IGWMC Short Courses survey. Text reads: “Help Shape Integrated GroundWater Modeling Center Short Courses. Your input will help us better understand the needs of the community.” Includes icons for a calendar, a hand holding money, and a computer screen. There is a QR code at the bottom.
July 18, 2025 at 12:19 PM
igwmc.bsky.social
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
A light blue square graphic with bold black text at the top reading “Fun Fact Friday with the Integrated GroundWater Modeling Center.” Below, the IGWMC logo features stylized blue and black text with a wave design. A white rounded rectangle contains bold black text saying “DID YOU KNOW?” followed by a fact in smaller black font: “As groundwater moves through layers of soil and rock, these materials help filter out many impurities. That’s why groundwater often requires less treatment than surface water to become safe for drinking.”
June 27, 2025 at 12:55 PM
igwmc.bsky.social
Groundwater has been around for millions—even billions—of years! 🤯 What’s the oldest water-related fact you know? ⬇️ #FunFactFriday #WaterScience @reedh2o.bsky.social
A light blue square graphic with bold black text at the top reading ‘Fun Fact Friday with the Integrated GroundWater Modeling Center.’ Below, the IGWMC logo features stylized blue and black text with a wave design. A white rounded rectangle contains bold black text saying ‘DID YOU KNOW?’ followed by a fact in smaller black font ‘Some groundwater has been underground for thousands to even millions of years! The oldest known groundwater, found in Canada, is estimated to be 2 billion years old—older than multicellular life itself.’
June 6, 2025 at 12:55 PM
igwmc.bsky.social
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
A congratulatory graphic featuring David van Velden, who is smiling and holding a plaque while standing next to Mario Soriano outside a building. He is wearing a Princeton jacket. The text below reads: "David graduated from Princeton’s Civil and Environmental Engineering department and will be working with Arcadis on water engineering projects in New York City. Originally from just outside Amsterdam, he joined the IGWMC through the High Meadows Environmental Institute, contributing to a joint project with Yale on groundwater vulnerability in the Appalachian region. His senior thesis used integrated hydrologic modeling to assess contamination risks from abandoned oil and gas wells, identifying nearly 400,000 people at risk." The graphic includes Princeton and IGWMC logos. A congratulatory graphic featuring Brooke Beers, who is smiling and standing in front of a stone archway wearing a white outfit. The text below reads: "Brooke is from Winter Springs, FL, and her passion for environmental engineering grew from a deep love of the outdoors. At Princeton, she played varsity Women’s Rugby, led Outdoor Action orientation trips, and earned a certificate in Sustainable Energy. Through the IGWMC, she conducted fieldwork at Snodgrass hillslope near Crested Butte, CO, where she gathered data used in her senior thesis on predictors of plant species diversity. Brooke will be returning there this coming summer!" The graphic includes Princeton and IGWMC logos. A congratulatory graphic featuring Ashley DeFrates, who is smiling and holding her senior thesis in front of green ivy. She is wearing a Princeton jacket. The text below reads: "Ashley, from Audubon, NJ, graduated from Princeton’s Civil and Environmental Engineering department and will begin a PhD in Earth System Science at Stanford. She worked with the IGWMC on bias-correcting meteorological inputs for ParFlow and conducted fieldwork at Snodgrass hillslope in Colorado. Her senior thesis used ParFlow to model the effects of warming on transpiration in the East-Taylor Watershed." The graphic includes Princeton and IGWMC logos.
May 30, 2025 at 12:47 PM
igwmc.bsky.social
📢 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
Promotional graphic for IGWMC’s Short Courses – Summer 2025, taking place from June 12 to June 21, 2025. The orange background features the Integrated GroundWater Modeling Center (IGWMC) logo and Princeton University crest. The listed courses include: MODFLOW 6 and FloPy: Take Your Groundwater Modeling Skills to the Next Level An Introduction to Predictive Modeling Workflows with Python, pyEMU, and PEST++ Polishing Your Groundwater Modeling Skills Integrated Simulation of Watershed Systems Using ParFlow Subsetting Using HydroFrame and HydroData Contaminant Transport Interpretation of Pumping Tests Conceptual Modeling and Model Parameterization Using Texture2Par At the bottom, there are two QR codes: one labeled "More Information" and the other "To Register."
May 13, 2025 at 9:36 PM
igwmc.bsky.social
📣 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
An orange promotional graphic for the Integrated GroundWater Modeling Center's Summer 2025 Short Courses, taking place from June 12 to June 21, 2025. The IGWMC logo and Princeton University shield appear at the top. The text lists planned course topics, including: MODFLOW 6 and FloPy: Take Your Groundwater Modeling Skills to the Next Level An Introduction to Predictive Modeling Workflows with Python, pyEMU, and PEST++ Polishing Your Groundwater Modeling Skills Integrated Simulation of Watershed Systems Using ParFlow Subsetting HydroFrame and Hydrodata Contaminant Transport Interpretation of Pumping Test Conceptual Modeling and Model Parameterization Using Texture2Par A QR code labeled "More Information" appears at the bottom, linking to course and survey details.
May 8, 2025 at 6:02 PM
igwmc.bsky.social
The IGWMC summer short course survey deadline has been extended to Friday, May 9.

We welcome input from researchers, students, and professionals. Review the courses and submit your interest!
igwmc.bsky.social Integrated GroundWater Modeling Center @igwmc.bsky.social · Apr 17
The IGWMC is planning in-person short courses at Princeton University June 16-20, 2025. If you're interested, view course info & fill out the interest form by Mon, 4/21: igwmc.princeton.edu/events/short...

Your input will help shape this summer's programming!
A group of short course participants standing and smiling outdoors on a green lawn in front of a modern building with glass and brick architecture
May 6, 2025 at 2:42 PM
igwmc.bsky.social
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
A light blue square graphic with bold black text at the top reading ‘Fun Fact Friday with the Integrated GroundWater Modeling Center.’ Below, the IGWMC logo features stylized blue and black text with a wave design. A white rounded rectangle contains bold black text saying ‘DID YOU KNOW?’ followed by a fact in smaller black font ‘Some deep groundwater contains organic matter that can fluoresce under UV light—so if you shine a UV light on it, it can appear to glow!’
May 2, 2025 at 11:30 AM
igwmc.bsky.social
🚨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
A white graphic featuring the Integrated GroundWater Modeling Center (IGWMC) logo beside the EGU General Assembly logo. Centered text reads: “Catch some of our amazing team in action at #EGU25 (All times in CEST).” Below, a list of IGWMC-affiliated EGU25 presentations is organized by date, with each entry showing the presenter’s name, the title of their talk, time, and room location. The dates range from Monday, April 28 to Friday, May 2.
April 26, 2025 at 4:52 PM
igwmc.bsky.social
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
Visual with a scenic background of a lush green mountain valley and snow-capped peaks under a blue sky. Overlaid text reads: 'Happy Arbor Day from the Integrated GroundWater Modeling Center (IGWMC)' with the IGWMC logo. Below, it explains how trees and plants contribute to the hydrological cycle through evapotranspiration, which includes evaporation from surfaces and transpiration from leaves. The text highlights how trees help move water into the atmosphere, forming clouds, regulating temperatures, and influencing precipitation. It ends by stating that planting trees supports the water cycle. Photo credit: Harry Stone, graduate student.
April 25, 2025 at 11:54 AM
igwmc.bsky.social
The IGWMC is planning in-person short courses at Princeton University June 16-20, 2025. If you're interested, view course info & fill out the interest form by Mon, 4/21: igwmc.princeton.edu/events/short...

Your input will help shape this summer's programming!
A group of short course participants standing and smiling outdoors on a green lawn in front of a modern building with glass and brick architecture
April 17, 2025 at 5:11 PM