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igwmc.bsky.social
Integrated GroundWater Modeling Center
@igwmc.bsky.social
130 followers 11 following 130 posts
Integrated GroundWater Modeling Center is an internationally oriented information, education and research center for groundwater modeling
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igwmc.bsky.social
Groundwater feeds 90% of Brazil's rivers and supplies water to over half its cities, but data is scarce. These researchers made the 1st nationwide water table depth map to help close the gap.
See how: doi.org/10.1088/1748...
@ioppublishing.bsky.social @reedh2o.bsky.social #Hydrology
Four-panel figure. Panels a and b show maps of Brazil at high resolution. Panel a shows predicted depth to groundwater across the country, with shallow water tables in blue and deep ones in orange, following the outlines of major hydrologic regions. Panel b shows how uncertain each prediction is, using the same map layout. Panels c and d zoom into a section of the São Francisco river basin, overlaid with the locations of irrigation systems, which are large circular farm fields that pump groundwater. Panel c shows predicted groundwater depth in this zoomed in area, revealing a clear pattern of deeper water tables clustering around the irrigated fields. Panel d shows prediction uncertainty for the same area, which increases in the deeper zones. Together, the maps show that groundwater depth varies widely across Brazil, follows river networks, and picks up on real signs of groundwater pumping for irrigation, even though pumping data was not used to build the model.
September 25, 2026 at 6:55 PM
igwmc.bsky.social
#ThrowbackThursday! As summer winds down, we're looking back at Groundwater Modeling and More 26. We kicked off our summer with a bang! This amazing conference was packed with great presentations, keynotes, networking, and so much more. 🌎💧 📸 PC: Sameer Khan, Fotobuddy @reedh2o.bsky.social
A full lecture hall of attendees listening attentively to a keynote speaker. A slide with a world map figure is displayed at the front of the room. A narrow shot of the final keynote speaker presenting, with a slide on groundwater flooding in focus on the projector screen. Attendees are visible in the background, seated in the lecture hall and out of focus. People networking and talking outside a building, everyone engaged in their conversations and smiling. A presenter points to a detail on his research poster while two attendees listen intently, drinks and plates in hand. A crowd mingles in the background around other posters.
September 10, 2026 at 1:47 PM
igwmc.bsky.social
🎨🌊 #SciComm meets art at the @watershedinstitute.bsky.social! For the second year, students turned what they learned into masterpieces and presented them at a public gallery walk, where visitors could chat with each artist about their pieces.🖼️ #Hydrology @reedh2o.bsky.social
Cover image with a big blue paint stroke across the bottom reading "Climate Futures Through Art: One Place, Two Paths." The background shows people interacting at a student art gallery. Photo collage of 11 images. Top left: two students talk as one presents her art. Next to it: a student painting of a mountain landscape. Top right: a student presents their art to a visitor. Below the first photo, stacked: student art depicting an exaggerated, barren and littered version of India, and below that, another student presenting art to a visitor. Center (large): students working on their art, supplies scattered across the table. To the right, stacked: student art of a deserted park, and below it, an aerial view of an island. Bottom left: a student presents interactive digital art on a TV as a visitor explores it with a controller. Next to it: student art of an hourglass filled with trash and a wave. Bottom right: student art of an abandoned, contaminated park with a swimming warning sign. Photo collage of 11 images. Top left: student art depicting urban heat in a city. Next to it: student art of a giant sequoia in a sequoia forest. Top right: a student presents his artwork to a visitor. Below the first photo, stacked: student art of a park-like nighttime scene, and below it, student art of a beach with a grassy area. Center (large): a student presenting their art to an instructor. To the right, stacked: student art of a body of water, and below it, student art of a park and lake with small figures doing outdoor activities. Bottom left: visitors walking through the gallery and interacting with students presenting their art. Next to it: another student painting of a mountain landscape. Bottom right: a student at a podium beside his interactive digital art world displayed on a TV.
September 4, 2026 at 1:55 PM
igwmc.bsky.social
Jerone the Drone gave you a glimpse, but Water and Climate Academy at @watershedinstitute.bsky.social went way beyond! Students explored field, coastal, and urban hydrology, hydrological modeling, and #SciComm skills to share their learning with others. #Hydrology @reedh2o.bsky.social
Photo collage of Day 1 activities, six images. Top left: an instructor times four students as they pour water into a tabletop activity. Top middle: students and instructors gather around a physical interactive watershed model. Top right: students examine an activity with various rocks, one holds a pipette of water while the other leans in to observe. Bottom left: a group of students works with blue marbles. Middle right: an instructor teaches in front of the class as students take notes. Bottom right: an instructor shows students a physical aquifer model during a hands-on activity. Photo collage of Day 2 activities, six images. Top left: two instructors lead a full classroom of students. Top middle: students do an outdoor water activity, one drawing water into a syringe while others watch. Top right: an instructor teaches a lesson to students. Bottom left: students listen to an instructor outside near a building. Middle right: another instructor-led lesson. Bottom right: students in neon yellow life vests stand in front of a small shed, listening to a speaker holding a drone controller. Photo collage of Day 3 activities, six images. Top left: an instructor teaches while students take notes. Top middle: students play a fishing game. Top right: an instructor points at the board as students watch and take notes. Bottom left: students take measurements outside using tools. Middle right: a drone pilot outside holds the controller as the drone hovers over a red landing pad. Bottom right: students do a density activity, one dips fingers into a cup of colored water while the other observes. Photo collage of Day 4 activities, six images. Top left: an instructor teaches at the front of the classroom as students take notes. Top middle: students write down measurements outside. Top right: students get a tour in front of a cathedral. Bottom left: students work on computers as instructors walk around. Middle right: a group photo in front of Nassau Hall, with the copper tigers on either side. Bottom right: the group continues the tour, standing in front of a building while learning about Princeton.
August 28, 2026 at 2:36 PM
igwmc.bsky.social
🌊 QUEST 26 is a wrap! A week of educators exploring hydrology beneath the surface with hydrologic cycle activities, water's connection to ecosystems & communities, and local NJ phenomena for the classroom.💧📚 @reedh2o.bsky.social @princeton.edu #Hydrology
Two educators examine a clear cup during a classroom activity. One holds the empty cup near eye level while the other begins pouring blue water into it. Other educators talk in the background. A group of educators smile with arms outstretched during an activity, while one crouches to move around the group. Three educators examine rocks together. One points at a specific rock, one looks closer with a magnifying glass, and the third observes. A tour guide stands in front of a building while a group of educators listens attentively.
August 26, 2026 at 6:00 PM
igwmc.bsky.social
Another great year of Water and Climate Academy on the books! 🌊✨ Big Thanks to the students, our group at the IGWMC, and our partners @watershedinstitute.bsky.social. Until next year! #STEMEducation #ScienceCommunication #Groundwater #Hydrology @reedh2o.bsky.social
August 13, 2026 at 1:47 PM
igwmc.bsky.social
Next week, @reedh2o.bsky.social presents at the NSF-NCAR CISL Seminar 💧

📅 June 25 | 1–2 PM MDT
🌐 Public livestream available

🔗 www.cisl.ucar.edu/events/cisl-...

#Hydrology #Groundwater #MachineLearning
Promotional flyer for an NSF-NCAR CISL Seminar featuring the talk "Advancing Integrated Continental-Scale Hydrologic Simulation and Forecasting through Democratized Data and ML-Accelerated Modeling," presented by Reed Maxwell on June 25, 2026 at 1:00 PM MDT. A headshot of Reed Maxwell appears on the right side of the flyer. Below his name is a QR code linking to seminar details, followed by the full URL: https://www.cisl.ucar.edu/events/cisl-seminar-advancing-integrated-continental-scale-hydrologic-simulation-and-forecasting. The NSF logo appears in the bottom left corner and the IGWMC logo in the bottom right.
June 17, 2026 at 2:05 PM
igwmc.bsky.social
Day 2 of #GWM2 is underway! 🎉 We kicked off with a welcome from Laura Condon and a featured talk by Nick Engdahl on bridging the gap to quantum computing-based hydrological modeling. Keep sharing your experience! #Groundwater #Hydrology @reedh2o.bsky.social
Laura Condon welcomes attendees to Day 2 of Groundwater Modeling and More 2026, with the conference logo displayed on a title slide behind her. Nick Engdahl presents his featured talk, "Bridging the Gap to Quantum Computing-Based Hydrological Modeling with Uncertainty-Aware Simulation Tools," with his title slide displayed behind him.
June 9, 2026 at 2:30 PM
igwmc.bsky.social
Day 1 of #GWM2 is a wrap! 🎉 What an incredible day of featured talks, special sessions, our first-ever education & outreach session, a sustainability panel, software demos, and so much more. Can't wait for Day 2! #Groundwater #Hydrology @reedh2o.bsky.social
Sorab Panday presents his featured talk to a full lecture hall, with a slide behind him reading: "The future of sustainability isn't just better science, but also better accessibility and communication." The sustainability panel moderator and panelists seated before the start of their session. From left to right: Sorab Panday, Russell McGlothlin, Matt Tonkin, Doug Bartlett, and Emily Lodolce. A view from the speaker's perspective of a full lecture hall, with attendees visibly engaged and attentive. Jasmine Pinchinat presents her talk during GWM2’s first-ever hydrology education and outreach session. Her title slide reads: "Integrating Creative Evaluation into Climate and Water Education: A Multi-Year Look at Student Engagement and Learning."
June 9, 2026 at 1:57 PM
igwmc.bsky.social
#GWM2 is officially underway! 🎉 We kicked things off with a fantastic featured talk from Laura Condon, followed by our first oral sessions. #Groundwater #Hydrology @reedh2o.bsky.social
Laura Condon presents her featured talk in a lecture hall, with a streamflow performance map displayed on the slide behind her. Laura Condon presents her featured talk in a lecture hall, with a slide behind her showing a performance figure and a table highlighting related talks happening later in the week. A presenter stands at the front of a packed lecture hall delivering her talk, with a slide behind her titled "Formation and Types of Cutoffs." Amelia (Mia) Peeples presents her talk in a packed lecture hall. Her title slide is displayed behind her, featuring her presentation title, co-authors, a river/stream photo on the left, and the conference logo at the bottom center.
June 8, 2026 at 3:30 PM
igwmc.bsky.social
Thank you to everyone who joined us at the #GWM2 Welcome Reception last night! What a wonderful way to kick off the week! 🌊 If you're here at the conference, keep sharing your experience! Use #GWM2 and tag us so we can see all the fun. #Groundwater #Hydrology @reedh2o.bsky.social
A crowded welcome reception for the Groundwater Modeling and More conference. The room is filled with a diverse group of attendees mingling, with registration tables visible on the left.
June 8, 2026 at 3:04 PM
igwmc.bsky.social
⏰ #GWM2 Deadlines This Week!
📋 Registration closes — Wed, June 3 | 11:59 PM ET
📊 Slide uploads close — Fri, June 5 | 12:00 PM ET
Register & submit slides 👉 event.fourwaves.com/gmm26/pages
@reedh2o.bsky.social #Groundwater #Hydrology
Promotional graphic for "Groundwater Modeling and More 2026: From Raindrop to Reservoir" on a light green background with colorful geometric designs along the top right and bottom left edges. The conference logo appears in the top left, with the conference hashtag #GWM2 in bold text above it. Below that, a subheading reads "Last Chance to Register & Submit!" The main text reads: "Don't miss the deadlines! Registration closes — Wed, June 3 | 11:59 PM ET Slide uploads close — Fri, June 5 | 12:00 PM ET" Below that, viewers are directed to the conference portal to register and upload their presentation slides before the deadlines: https://event.fourwaves.com/gmm26/pages. A QR code is centered at the bottom of the graphic, overlapping the geometric design slightly.
June 1, 2026 at 9:07 PM
igwmc.bsky.social
⏳ Spots are filling fast! The Schedule, Presentations & Participants tabs are now live for #GWM2. Don't wait — register today! 🌊 @reedh2o.bsky.social
event.fourwaves.com/gmm26/regist...
#Groundwater #Hydrology
Promotional graphic for "Groundwater Modeling and More 2026: From Raindrop to Reservoir" on a black background with colorful geometric designs along the top right and bottom left edges. The conference logo appears in the top left, with bold text reading the conference title "Groundwater Modeling and More 2026" beside it. Below that, three oval-shaped blue text boxes read "View the Full Schedule," "Browse the Presentations," and "See Who Is Attending," each with a corresponding icon slightly overlapping the shape. The main text reads: "Conference registration is filling fast — Register Today! Short courses are also filling quickly. Reserve your spot in the sessions that matter to you." Below that, viewers are directed to the conference website to register. A QR code overlaps the design in the bottom left, and the hashtag #GWM2 appears in the bottom right corner.
May 22, 2026 at 6:46 PM
igwmc.bsky.social
🚨 Today is the LAST DAY to save on conference registration for #GWM2 at Princeton! Early bird pricing ends tonight — don't miss out! Short course registration is also open at regular pricing. Register before it's gone: igwmc.princeton.edu/groundwater-... @reedh2o.bsky.social
Promotional graphic for "Groundwater Modeling and More 2026: From Raindrop to Reservoir" on a light blue background with colorful geometric designs along the top and bottom edges. The conference logo is centered over the top design. Below the logo, bold text reads "Early Bird Conference Registration Ends TODAY!" Centered beneath that, the main text reads "Groundwater Modeling and More 2026 is just weeks away! Lock in your discounted rate today. Short course registration is also open at regular pricing." Below that, text directs viewers to the conference website to register, with a QR code beneath it. The hashtag #GWM2 appears in the bottom left corner.
May 15, 2026 at 3:00 PM
igwmc.bsky.social
⏰ 1 day left to save on conference registration for #GWM2 at Princeton! Early bird pricing ends May 15th — short course registration is also open at regular pricing. Don't wait! igwmc.princeton.edu/groundwater-...
@reedh2o.bsky.social
Promotional graphic for "Groundwater Modeling and More 2026: From Raindrop to Reservoir" on a dark blue background with colorful geometric designs in the top left and bottom right corners. The conference logo is overlaid on the top left design. To the right of the logo, a megaphone graphic appears alongside the text "1 Day Left to Save on #GWM2 Conference Registration!" Below that, the main text reads "About 4 Weeks Until Groundwater Modeling and More 2026! Short course registration is open at regular pricing, and you can still save on conference registration — Early Bird Rate Ends Friday, May 15th!" In the bottom right, text directs viewers to the conference website to register, with a QR code below it. The hashtag #GWM2 appears in the bottom left corner.
May 14, 2026 at 2:19 PM
igwmc.bsky.social
🚨 Early bird pricing for #GWM2 Short Courses ends today, May 6th! Take advantage of these discounts while you still can. Don’t miss out!
Learn more & register: igwmc.princeton.edu/groundwater-...
#Hydrology @reedh2o.bsky.social
Promotional graphic for “Groundwater Modeling and More 2026: From Raindrop to Reservoir” featuring a photo of a Princeton tiger in front of Nassau Hall on a light blue background overlay. A white square overlay contains the main message: “Early Bird Pricing Ends Today for Short Courses — Don’t Miss Out — Register Now!” Below, text highlights: “Explore our range of engaging short courses designed to build practical skills and inspire new opportunities!” followed by a list of short courses. On the right side of the white square, text directs viewers to the short course website for more information and registration, with a QR code beneath it. The conference logo overlaps the bottom-right corner of the white square. The hashtag #GWM2 appears on the blue overlay at bottom right. Contact email igwmc@princeton.eduis centered at the bottom.
May 6, 2026 at 2:35 PM
igwmc.bsky.social
Only 5 more weeks until #GWM2! 🎉
Now that you’ve seen our great lineup of short courses, there’s still time to get the early bird discount by registering by tomorrow, May 6th.
To learn more and register, visit: igwmc.princeton.edu/groundwater-...
#Hydrology @reedh2o.bsky.social
Promotional graphic on a dark blue background with lighter blue cloud designs for the conference : “Groundwater Modeling and More 2026: From Raindrop to Reservoir.” The conference title appears in the top right beneath the text, “The countdown is on — only 5 weeks until” In the top left is the conference logo. Beside it, text reads, “Tomorrow (5/6) is the LAST day to receive discounted short course registration rates,” alongside an hourglass graphic. Centered below is the message: “Don’t miss your chance to sharpen your modeling skills, connect with the groundwater community, and join us for a week of learning and collaboration.” The graphic includes a QR code and directs viewers to visit the conference website for registration. At the bottom center is the contact email igwmc@princeton.edu, and the bottom left includes the hashtag #GWM2.
May 5, 2026 at 5:10 PM
igwmc.bsky.social
#GWM2 Short Course Highlight: Multi-Layer Analytic Element Modeling with Timflow
For more information, visit:
🔗 igwmc.princeton.edu/groundwater-...
#Groundwater #Hydrology
@reedh2o.bsky.social
Promotional graphic for Groundwater Modeling and More 2026 Multi-Layer Analytic Element Modeling with Timflow short course, taking place on June 11th. The design has a mostly white background with a dark blue vertical line and conference logo on the right side. On the left, text lists the instructors and provides a brief description of the course. A QR code at the bottom right links to the short course website.
April 27, 2026 at 11:09 PM
igwmc.bsky.social
#GWM2 Short Course Highlight: Contaminant Transport Modeling
For more information, including pricing and registration, visit:
🔗 igwmc.princeton.edu/groundwater-...
#Groundwater #Hydrology
@reedh2o.bsky.social
Promotional graphic for Groundwater Modeling and More 2026 Contaminant Transport Modeling short course, taking place on June 11th. The mostly white design includes blue accents in the corners and the conference logo at the top right. Centered text lists the instructors and describes the course. A QR code at the bottom left links to the short course website.
April 24, 2026 at 3:50 PM
igwmc.bsky.social
#GWM2 Short Course Highlight: Integrated Simulation Of Watershed Systems Using ParFlow and Subsetting Using HydroFrame and Hydrodata: ParFlow Short Course Extension
For more:
igwmc.princeton.edu/groundwater-...
#Groundwater #Hydrology
@reedh2o.bsky.social
Promotional graphic for Groundwater Modeling and More 2026 Integrated Simulation Of Watershed Systems Using ParFlow short course, taking place on June 11-June 12. The design has a mostly white background with a dark blue vertical line and conference logo on the right side. On the left, text lists the instructors and provides a brief description of the course. A QR code at the bottom right links to the short course website. Promotional graphic for Groundwater Modeling and More 2026 Subsetting Using HydroFrame and HydroData: ParFlow Short Course Extension, taking place on June 12. The mostly white design includes blue accents in the corners and the conference logo at the top right. Centered text lists the instructors and describes the course. A QR code at the bottom left links to the short course website.
April 20, 2026 at 5:15 PM
igwmc.bsky.social
#GWM2 Mini Conference Highlight: 12th International Conference on the Analytic Element Method
Learn about pricing, registration, and more:
igwmc.princeton.edu/groundwater-...
#Groundwater #Hydrology
@reedh2o.bsky.social
Promotional graphic for Groundwater Modeling and More 2026, 12th International Conference on the Analytic Element Method, taking place on June 6- June 7. The mostly white design includes blue accents in the corners and the main conference logo at the top right. Centered text lists the organizers, describes the conference, and information about abstract submission on the bottom right. A QR code at the bottom left links to the conference website.
April 17, 2026 at 4:44 PM
igwmc.bsky.social
#GWM2 Short Course Highlight: Analyzing Groundwater Time Series with Pastas
For more information, including pricing and registration, visit:
🔗 igwmc.princeton.edu/groundwater-...
#Groundwater #Hydrology
@reedh2o.bsky.social
Promotional graphic for Groundwater Modeling and More 2026 Analyzing Groundwater Time Series with Pastas short course, taking place on June 7th. The design has a mostly white background with a dark blue vertical line and conference logo on the right side. On the left, text lists the instructors and provides a brief description of the course. A QR code at the bottom right links to the short course website.
April 13, 2026 at 6:52 PM
igwmc.bsky.social
#GWM2 Short Course Highlight: An Introduction to Predictive Modeling Workflows with python, pyEMU, and PEST++
Learn more:
igwmc.princeton.edu/groundwater-...
#Groundwater #Hydrology
@reedh2o.bsky.social
Alt-text: Promotional graphic for Groundwater Modeling and More 2026 An Introduction to Predictive Modeling Workflows short course, taking place on June 7th. The mostly white design includes blue accents in the corners and the conference logo at the top right. Centered text lists the instructors and describes the course. A QR code at the bottom left links to the short course website.
April 10, 2026 at 8:52 PM
igwmc.bsky.social
We’re hosting the 2026 Darcy Distinguished Lecturer!
🗓 April 15 | 🕥 12:30PM
📍 008, Friend Center
Dr. Steven Loheide (University of Wisconsin - Madison)
“Groundwater Recharge Regimes are in Flux”
#Hydrology #Groundwater @reedh2o.bsky.social
A promotional flyer for the 2026 Darcy Distinguished Lecture hosted at Princeton University. The lecture is titled “Groundwater Recharge Regimes are in Flux” and will be given by Dr. Steven Loheide, Professor of Water Resources Engineering in Civil and Environmental Engineering, Geological Engineering, Freshwater and MarineSciences and Water Resource Management at the University of Wisconsin – Madison. The lecture is scheduled for Wednesday, April 15 from 12:30 to 1:30 PM in 008, Friend Center. The flyer includes Dr. Loheide’s portrait and bio, an abstract of the lecture, and all the other information for the lecture.
April 7, 2026 at 12:36 PM
igwmc.bsky.social
#GWM2 Short Course Highlight: MODFLOW 6 & FloPy: Take Your Groundwater Modeling Skills to the Next Level
For more information, visit:
🔗 igwmc.princeton.edu/groundwater-...
#GWM2 #Groundwater #Hydrology
@reedh2o.bsky.social
Promotional graphic for Groundwater Modeling and More 2026 MODFLOW 6 & FloPy short course, taking place on June 5- June 6. The design has a mostly white background with a dark blue vertical line and conference logo on the right side. On the left, text lists the instructors and provides a brief description of the course. A QR code at the bottom right links to the short course website.
April 6, 2026 at 3:39 PM