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Margaret Zimmer

@margaretzimmer.bsky.social
873 followers 426 following 19 posts

Watershed hydrologist; Associate Professor at UW Madison; she/her

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Reposted by Margaret Zimmer
Ryoko Araki @rarakihydro.bsky.social · 07/07/2026
📢 #AGU26 Call for Abstracts to the long-running runoff generation session! "H122 - Runoff Generation Processes: From Fundamental Mechanisms to Disturbance Responses." 🌟Featured Invited Speakers: Margaret Zimmer & C. Rhett Jackson 🔗 agu.confex.com/agu/agu26/pr...
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JP Gannon @jpgannon.bsky.social · 11/02/2026
@hydrochrista.bsky.social @domciruzzi.bsky.social, and I asked hydrologists across the country for their syllabi so we could investigate how instructors were teaching hydrology courses and think about the future... Here’s what we found + suggestions agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com
The Current State of Undergraduate Hydrology Courses in North America: A Path Forward
Examined syllabi for introductory courses in hydrology The titles, topics, and approaches to assessment varied widely across courses Found limited consensus in how hydrology courses are taught a...
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Li Li (李黎) @lireactivewater.bsky.social · 05/01/2026
Happy new year! Women Advancing River Research (WARR) 2026, featuring woman scientists from around the world. 3rd Thursday each month, 11 – 12 noon US ET Pls spread the word. Register: psu.zoom.us/meeting/regi... @waterbarnes.bsky.social @agu-h3s.bsky.social @aguwaterquality.bsky.social
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Margaret Zimmer @margaretzimmer.bsky.social · 18/12/2025
Happening this morning! Run don’t walk to room 228-230 to hear @zhaozhechen.bsky.social talk hydroclimate-ET synchrony!! @agu.org
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Margaret Zimmer @margaretzimmer.bsky.social · 13/12/2025
Postdoc @zhaozhechen.bsky.social is representing our Powell Center ecosystem synchrony group at AGU this year! Come check out his Thursday 10:52 AM talk (abstract 1882146) in rm 228-230! it’s all about hydroclimatic and critical zone synchrony with/drivers of evapotranspiration.
Process network illustration showing directionality and strength of relationships between hydro climatic variables across CONUS Ameriflux sites
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Rachel Stubbington @rstubbington.bsky.social · 20/10/2025
Calling fans of temporary waters! We invite you to submit an abstract to our ASLO-SIL special session "SS015 Drying waters: the science and management of temporary aquatic ecosystems". More details at www.aslo.org/aslo-sil-2026/ Deadline 251125 @ryanmburrows.bsky.social @kuglerovastripe.bsky.social
aslo.org
2026 ASLO-SIL Joint Meeting - ASLO
The theme of the 2023 Aquatic sciences Meeting is Resilience and Recovery in Aquatic Systems. We encourage submissions that examine these topics and invite you to contribute special sessions on topics...
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Li Li (李黎) @lireactivewater.bsky.social · 16/07/2025
Happening tomorrow, 11/17, 11 am Eastern!
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Dr. Amy Burgin @burginam.bsky.social · 16/07/2025
Looking forward to talking non-perennial streams with MZ tomorrow! She'll do an overview of all of the great synthesis work in the NPS literature in the last ~5 years, and I'll do a deep dive on the organization of the Aquatic Intermittency effects on Microbiomes in Streams (AIMS) project! Join us!
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JP Gannon @jpgannon.bsky.social · 23/06/2025
Teach hydro modeling? Want to introduce modeling in an intro class? Check out this web-app, activities, and code (in case you want to spin off your own).. Thanks @jansei.bsky.social for working with me on this, which was inspired by his HBV-lite teaching software! dx.doi.org/10.1002/hyp....
dx.doi.org
Interactive Learning in Hydrological Modelling With a Web‐Based Tool
We introduce a web-based tool to explore hydrological modeling in classrooms. The app can be run in any internet browser on a variety of devices. The app and code are available for free. We include m...
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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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Jeannie Wilkening @jvwilkening.bsky.social · 06/05/2025
Recently, all the AAAS Science & Tech Policy Fellows at EPA were terminated from our positions with little notice and for no clear reason. This effectively ended a partnership that had been going since 1980 and which had brought hundreds of scientists to the EPA as fellows, many of whom stayed. 1/7
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Darren Ficklin @dficklin.bsky.social · 08/04/2025
Coastal Massachusetts in August? Sure! Apply to attend our CUAHSI-sponsored workshop on stakeholder-informed spatial modeling for hydrologic sciences. Let me know if you have any questions! www.cuahsi.org/workshops/st...
cuahsi.org
Workshops | Cuahsi.orgfacebookfacebookBlueskytwitterinstagramlinkedinyoutubemagnifyclosechevron-leftchevron-rightchevron-topchevron-bottomSearch iconClose iconSearch iconBluesky
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KinarNicholas.bsky.social @kinarnicholas.bsky.social · 05/04/2025
Hydrology Paper of the Day @margaretzimmer.bsky.social on how subsurface geology influences discharge and transport processes in two headwater catchments of the Diablo Range, California affected by wildfire: sedimentary and mélange lithologies, and understanding spatiotemporal DOC export.
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Critical Zone News @cznews.bsky.social · 02/04/2025
#CriticalZone #research
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Corey Krabbenhoft @ckrabb.bsky.social · 01/04/2025
Pleased to announce my lab will soon be hiring a postdoc! Join an interdisciplinary group working on ecosystem change following the last glacial maximum in southeast Alaska. Substantial modeling skills are a big plus! Applications due April 20th. coreykrabbenhoft.com/join-us-2/
The research team working from a raft to extract a lake sediment core from a small lake in southeast Alaska.A large marine bivalve shell is pulled from the mud inside one of the lake sediment cores.Landscape photo of the area near a sample lake in southeast Alaska.
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Margaret Zimmer @margaretzimmer.bsky.social · 01/04/2025
Latest paper out of the WS hydrology lab! Here we show spatial variability in lithology is important for streamflow behavior and carbon export, but geogenic solute export behavior is similar. agupubs.onlinelibrary.wiley.com/doi/full/10....
agupubs.onlinelibrary.wiley.com
The Role of Lithology on Concentration‐Discharge Relationships and Carbon Export in Two Adjacent Headwater Catchments
Bedrock lithology drives differences in streamflow and carbon export in adjacent catchments, controlling variability in shallow flow paths Both catchments display similar in-stream major ion conc...
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Margaret Zimmer @margaretzimmer.bsky.social · 27/03/2025
Oh I absolutely can’t wait to read this new paper! The “little bit of everything” in this paper is everything I love!
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Hilary McMillan @mcmillanhydro.bsky.social · 20/02/2025
Remember to apply and register for this summer's Catchment Science GRC! The best conference you'll ever go to. Deadlines coming up on March 16 for graduate students to submit their oral abstracts to the GRS. www.grc.org/catchment-sc...
Poster advertising GRC Catchment Science Conference, dates 22-27 June 2025, and accompanying GRS conference for Young Researchers 21-22 June 2025.
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Laura Lautz @llautz.bsky.social · 19/02/2025
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...
npr.org
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.
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Margaret Zimmer @margaretzimmer.bsky.social · 12/02/2025
Today’s the day!!! So excited for Lauren!!
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Margaret Zimmer @margaretzimmer.bsky.social · 11/02/2025
Wednesday 2/12 at 1 PT is Lauren Giggy’s PhD defense presentation, titled “Hydrology and Biogeochemistry of Non-Perennial Streams in Coastal California.” She will talk streamflow generation processes, wildfire impacts, and more!! If this sounds exciting to you, message me for the zoom link!
Woman standing in an oak savanna landscape.
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Laura Lautz @llautz.bsky.social · 08/02/2025
Check out this thread with Fact Sheets and interactive tools to learn about NSF’s impact across the US, in your state, and at universities in your community!
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Christa Kelleher @hydrochrista.bsky.social · 02/01/2025
A little bit delayed, but I hear it's picking up over here so sending this out into the world: our Lafayette team including Rachel Hurley (now grad student at WPI), Dave Brandes, and me put out this piece on flashiness across the Mid-Atlantic: onlinelibrary.wiley.com/doi/abs/10.1...
onlinelibrary.wiley.com
Drivers and Buffers of Stream Flashiness in the Mid‐Atlantic United States
In this study, we investigated flashiness across 195 Mid-Atlantic sites, each within one of seven different physiographic regions. Our findings identified several drivers and buffers of flashiness, e...
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Bob Shriver @bkshriver.bsky.social · 15/01/2025
Our department at the University of Nevada is looking for a Chair to help lead us into the future! We are young and very research active applied ecology and environmental science department. Come join us!
Ruby Mountains in Nevada
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Li Li (李黎) @lireactivewater.bsky.social · 03/01/2025
Happy new year! Thrilled to announce Women Advancing River Research (WARR) 2025, featuring inspiring women on water research from around the world. 11 am, US eastern, 3rd Thursday every month. Register: psu.zoom.us/meeting/regi... Recordings 2021- 2024: www.cee.psu.edu/events/women...
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Heather Golden @goldenwater.bsky.social · 02/01/2025
An incredible group of scientists and colleagues joined forces to support improved data, modeling, and analyses of headwater streamflow to improve surface water protections globally. Check out our paper, hot off the presses, in @naturewaterjnl.bsky.social. www.nature.com/articles/s44...
nature.com
Advancing the science of headwater streamflow for global water protection - Nature Water
Despite their substantial contributions to watershed resilience, headwater streams are becoming increasingly imperilled. This Perspective summarizes the status of headwater streamflow information and ...
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Margaret Zimmer @margaretzimmer.bsky.social · 20/12/2024
It was great to chat with interested prospective students at #AGU24! If you’re looking for a graduate position or postdoc in the field of hydrology - reach out!!
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The Onion @theonion.com · 16/12/2024
‘No Way To Prevent This,’ Says Only Nation Where This Regularly Happens theonion.com/no-way-to-pr...
‘No Way To Prevent This,’ Says Only Nation Where This Regularly Happens
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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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Margaret Zimmer @margaretzimmer.bsky.social · 09/12/2024
Excited to be back at #AGU24 after a 4 year hiatus! I’m not presenting, but lab members are!! First up- check out Sam Motz’s poster Monday AM on transit time distribution modeling in non-perennial streams! Poster H11T-0957
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Katharine Hayhoe @katharinehayhoe.com · 03/12/2024
@agu.org I’m not sure if it’s possible to do this last minute, but could you remove X as the default platform for posting on the #agu24 app? Aside from all the issues with the platform, we aren’t there anymore. We’re here!
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Michelle Busch, PhD @bugginbusch.bsky.social · 22/10/2024
Do you study or work in non-perennial, intermittent or ephemeral streams? Please take our survey to better understand the data, opportunities, and challenges of your research!
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Margaret Zimmer @margaretzimmer.bsky.social · 31/10/2024
Obviously dry rivers should win! Don’t forget to vote!
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Scott Robeson @indianaclimate.bsky.social · 10/09/2024
Agricultural tile drains, which are widely used across the Midwestern USA, are used to reduce waterlogging. In this new Env Res Letters article, Seth Adelsperger (IU PhD candidate) et al. show that they also increase the duration, frequency, and severity of streamflow drought. #climate #geosky 🧪
iopscience.iop.org
Agricultural tile drains increase the susceptibility of streams to longer and more intense streamflow droughts - IOPscience
Agricultural tile drains increase the susceptibility of streams to longer and more intense streamflow droughts, Seth Adelsperger, Darren Ficklin, Scott Robeson, Margaret Zimmer, John C Hammond, Damon M Hall, J.P. Gannon
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Adam Price @aphydro.bsky.social · 24/07/2024
Looking for a non-perennial / variably inundated ecosystem session at AGU?!? Please consider submitting an abstract to “Interdisciplinary Investigations of Non-Perennial and Variably Inundated Ecosystems” We have confirmed two amazing invited speakers Drs. Li Li (PSU) and Alex Webster (UNM).
Advertisement for an American Geophysical Union Fall Meeting 2024 session “Interdisciplinary Investigations of Non-Perennial and Variably Inundated Ecosystems” with a photo of a non-perennial system located in a red rock desert.
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AGU Hydrology H3S @agu-h3s.bsky.social · 02/07/2024
ED041: "Centering Diversity, Equity, and Inclusion in Bio-geoscience Curriculum" We invite abstract submissions to this session using the link below agu.confex.com/agu/agu24/pr... 2/3
Flyer advertising AGU24 session titled Centering Diversity, Equity, and Inclusion in Bio-geoscience Curriculum. Flyer has a purple background with text that says We invite contributions from student-led groups, department-level DEl committees, and instructors at any career stage. This session will serve as a space for bio-geoscience educators and students to interactively explore a wide array of engagement strategies, from experiential learning to entirely reimagined curriculum to improve DEl within departments and, ultimately, the Geoscience workforce.
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Kaizad Patel @kaizadp.bsky.social · 24/06/2024
#AGU24 Consider submitting an abstract to our session on terrestrial-aquatic interfaces! We encourage submissions from all TAIs - coastal, riparian, freshwater. Soils, sediments, wetlands, transition systems - everyone is welcome agu.confex.com/agu/agu24/pr...
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amandaecohydro.bsky.social @amandaecohydro.bsky.social · 17/06/2024
As you begin to think about #AGU24 please consider submitting an abstract to a new session focused on water stored and cycled through weathered bedrock! agu.confex.com/agu/agu24/pr...
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hydrokendra.bsky.social @hydrokendra.bsky.social · 05/06/2024
Idaho Department of Water Resources is looking for a person with expertise in #groundwater modelling.  Full-time position in beautiful Boise #Idaho #jobs
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Ciaran J Harman @theoryofciaran.bsky.social · 24/05/2024
Wednesday May 29 I'm going to host a read-along zoom session of Jim Kirchner's new Ensemble Rainfall-Runoff Analysis paper Join as we read it together and chew the gristle! All are welcome at any career stage. DM me for a link. 9am-noon EDT / 1700-2000 CET hess.copernicus.org/preprints/he...
hess.copernicus.org
Characterizing nonlinear, nonstationary, and heterogeneous hydrologic behavior using Ensemble Rainfall-Runoff Analysis (ERRA): proof of concept
Abstract. A classical approach to understanding hydrological behavior is the unit hydrograph and its many variants, but these often assume linearity (runoff response is proportional to effective preci...
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Sarah H. Ledford @sledford.bsky.social · 15/03/2024
Friday of spring break surprise: my former student, Julian Sheppy's paper is published! It's available here: link.springer.com/article/10.1... or email me (it's behind a paywall). Julian measured DOC concentration and bioavailability below urban beaver and stormwater ponds in Atlanta
link.springer.com
Urban beaver ponds show limited impact on stream carbon quantity in contrast to stormwater ponds - Urban Ecosystems
Urban beaver and stormwater ponds provide hydrologic retention in the landscape while collecting dissolved organic matter (DOM)-rich runoff that can promote primary productivity. Our objective was to ...
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Lejo Flores, Ph.D. @hydrolejo.bsky.social · 07/03/2024
Does anyone have a successful NSF EAR Instrumentation and Facilities proposal they’d be willing to share? I have one, but would appreciate having a couple more to see what a successful layout looks like. Email me if you’d be willing to share!
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Dr. Amy Burgin @burginam.bsky.social · 01/03/2024
Freshwater Science is recruiting a new Editor-in-Chief! If you want a chance to influence how publishing works, while supporting @freshwater-science.bsky.social and the non-profit U ChicagoPress, please reach out to me. Please share widely and send me nominations. Applications due 25 March 2024
PDF screenshot of the call for applications including essential duties and responsibilities, application process and timeline. Please email burginam@ku.edu to get a full copy.
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Emilio Grande @egrandehydro.bsky.social · 26/02/2024
Are you working on hydrological processes or stream biochemistry? Interested in intermittent streams? Join our workshop! www.geographie.uni-bonn.de/de/hydrology...
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JP Gannon @jpgannon.bsky.social · 21/02/2024
Biggish update to my hydroinformatics course book! Everything is now in quarto, some issues fixed, and the geospatial stuff should be free of soon-to-be deprecated packages. vt-hydroinformatics.github.io
vt-hydroinformatics.github.io
Hydroinformatics
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Paige S Becker, Ph.D. @paigeinabook.bsky.social · 20/12/2023
12 days left to apply to join H3S!! We're looking for motivated students and ECs to support the hydrologic community! Students and Early Career Folks are encouraged to apply! docs.google.com/forms/d/e/1FAI… Can't wait to have you be part of our team!
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JP Gannon @jpgannon.bsky.social · 15/11/2023
Hydrology position alert! Come work in my department! Virginia Tech is teeming with hydrologists. It is awesome. Blacksburg is also a lovely place to be. Happy to answer questions! e-mail is jpgannon at vt.
careers.pageuppeople.com
Details | Assistant Professor in Hydrologic Sciences | Careers | Division of Human Resources | Virgi...
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Anna Braswell @coastalecosystems.bsky.social · 13/11/2023
The lab is at #CERF2023 !!! Come check out our posters and talks! @cerfscience.bsky.social
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Jay Zarnetske @hydrodoctorj.bsky.social · 09/11/2023
Come join my friendly, collaborative, & growing department! MSU Earth & Environmental Sciences has two open rank tenure track positions: 1) Earth Surface Processes & Global Chance, and 2) Earth Materials & Resources. Application review begins on November 19. See link
ees.natsci.msu.edu
Two Open Rank Tenure-Track Faculty Positions in Earth and Environmenta
The Department of Earth and Environmental Sciences (EES) at Michigan State University (MSU) seeks applications for two endowed tenure-track open rank positions: 1. Earth Surface Processes and Glob
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Margaret Zimmer @margaretzimmer.bsky.social · 07/11/2023
Join me at the USGS and be my office mate!! Super awesome job just dropped- www.usajobs.gov/GetJob/ViewD.... In this job you get to lead a team of 10-13 scientists addressing important water quality questions. Reach out if you have questions!
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