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Jacob Wenegrat

@roguewave.bsky.social
1.4K followers 518 following 114 posts

Physical oceanographer, Associate Professor at University of Maryland College Park. Geophysical fluid dynamics, submesoscales, sailing, and… wenegrat.github.io

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Reposted by Jacob Wenegrat
Rachel Wegener @rwegener2.bsky.social · 22/09/2026
What would happen if data providers didn’t just deliver data and tools, but co-constructed them collaboratively with their communities? That’s the question we explore in our paper “Ten rules to increase the usability of earth observation mission datasets”, published yesterday. 🧵🧵🧵
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Senator Tim Kaine @kaine.senate.gov · 17/09/2026
This is a massive mistake. The Chesapeake Bay plays a critical role in Virginia's economy and seafood industries, and we must take steps to protect the waters and shores of the region. I'm going to do everything I can to fight this. www.wboc.com/news/trump-a...
wboc.com
Trump Administration repeals Chesapeake Bay Protection and Restoration Executive Order
President Trump is repealing an executive order from 2009 dedicated to protecting and restoring the Chesapeake Bay.
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Fabrice Ardhuin @fabriceardhuin.bsky.social · 13/09/2026
🌊 I finally had the time to watch the great video by Tripp Collins on D. Day wave forecasts. I studied at NPS Monterey under Ed Thornton and was lucky to meet Walter Munk at is home in La Jolla: I really enjoyed Tripp's putting various pieces of the story together. youtu.be/sFT1k1VMgd4?...
youtu.be
Special Episode: The D-Day Surf Report
YouTube video by BOOK SCIENCE
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Liz Hearn @liz-hearn.bsky.social · 07/09/2026
If you care about Earth science in the US, please sign up for the NSF GEO virtual office hour Sept 15 with GEO directorate head Joydip Kundu! NSF leadership needs to hear directly that people care and are concerned about GEO. Maxxing out their Zoom tier sends a message. www.nsf.gov/events/nsf-g...
nsf.gov
NSF GEO Virtual Office Hour: Updates from the NSF Directorate for Geosciences
Join directorate leadership for updates and information.
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Alexandra Witze @alexwitze.bsky.social · 10/09/2026
The National Science Foundation has not had a director since April 2025, but is undertaking very significant structural changes in how it funds US science. No permanent leadership appears anywhere in sight.
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Dr Joanne Williams @jowilliams.bsky.social · 09/09/2026
This is an interesting paper, by Bruce Parker, for those interested in WWII/maritime history and mathematics. physicstoday.aip.org/features/the...
physicstoday.aip.org
The tide predictions for D-Day
Based on the physics of Newton and Laplace, the big brass tide-predicting machine designed by Lord Kelvin was crucial for the success of the Normandy invasion in World War II.
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Jacob Wenegrat @roguewave.bsky.social · 02/09/2026
I'm one of the potential PhD advisors on this list!
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Mike Sieracki @msier.bsky.social · 21/08/2026
Major reductions in nsf funding for most domains of science
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Dan Garisto @dangaristo.bsky.social · 20/08/2026
Scoop: For nearly a year, NSF has struggled to make new grants. Now we know that it will not catch up. In fact, NSF will award just 6,100 new grants—a 30% y/o/y decline, itself down from a previous avg. of 11,000+. In fact, the last time NSF awarded so few grants was in the early '80s.
nature.com
Exclusive: NSF set to issue lowest number of new grants in four decades
The US science-funding agency is withholding $1 billion of its budget so that the money can go to a special White House project.
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Shane Elipot @selipot.bsky.social · 17/08/2026
I am recruiting a PhD student in physical oceanography to work on the observations and dynamics of the #AMOC! Come join us at @miamirosenstiel.bsky.social in Miami! Details and application at the link👇. DM me for details. 📸 Claudia Campi & Cedric Guigand graduate.earth.miami.edu/admissions/p...
A photograph of an autonomous underwater vehicle, also known as a glider.A photograph of a large oceanographic research vessel at sea
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UMD Science @umdscience.bsky.social · 21/07/2026
Ocean temperature can change by several degrees over short distances. According to a @pnas.org study led by #UMD scientists, those tiny temperature fronts can reshape the wind and air above them—a detail that could be important for fine-tuning weather forecasting and climate models. #ClimateSky
go.umd.edu
Tiny Ocean Fronts Reshape the Air Above Them, UMD Study Finds | College of Computer, Mathematical, and Natural Sciences | University of Maryland
Sharp, fleeting temperature boundaries on the ocean’s surface transform the atmosphere in ways not yet
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Daniel Munro @dkmunro.bsky.social · 14/07/2026
“To accommodate the expected funding withdrawal, programme officers…are being required to pull back proposals that have already passed peer review and have been recommended for funding….[M]any of the researchers who submitted those proposals had already been informed” www.nature.com/articles/d41...
nature.com
NSF plans cuts to core science programmes to fund White House initiative
A proposed clawback of already distributed research funds comes as the US agency struggles with a squeezed budget and a backlog of grant applications.
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Neil Lewis, Jr. @neillewisjr.bsky.social · 22/06/2026
"Program managers would normally rush to inform potential and current grantees about such dramatic changes. But the memo tells program managers to keep their mouths shut. 'This information is highly confidential...Please do not communicate anything to PIs.'” www.science.org/content/arti...
science.org
Exclusive: NSF slashes research programs to support new tech initiative, insiders say
Unexpected shift in funds has meant sharp drop in grants this fiscal year
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Amy McGovern @profamymcgovern.bsky.social · 12/06/2026
NY times covered our cut today (gift article) www.nytimes.com/2026/06/12/s...
nytimes.com
She Used A.I. to Improve Forecasts for Extreme Weather
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Jacob Wenegrat @roguewave.bsky.social · 29/05/2026
This is a good summary of what would be absolutely devastating to the United States ability to do science.
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David Slack @slack2thefuture.bsky.social · 24/05/2026
If I’m not evolved enough to understand it, then why did they have to steal my writing to train it?
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Baylor Fox-Kemper @baylorfk.bsky.social · 23/05/2026
This one was really fun to do. Lots of new ideas discovered in there!
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Jacob Wenegrat @roguewave.bsky.social · 22/05/2026
New preprint looking at the question of how the interaction between fronts (~1 kilometer) and turbulence (~10s of meters) affects the exchange of properties between the ocean mixed-layer and interior. Work by Zhihua Zheng along with @baylorfk.bsky.social, Tomas Chor, and Jay Brett. 1/n
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Jacob Wenegrat @roguewave.bsky.social · 16/05/2026
What happens if you smooth the ocean? 🌊 A brief thread about our new paper @agu.org Geophysical Research Letters: agupubs.onlinelibrary.wiley.com/doi/10.1029/... When we do theory and modeling we tend to use very smooth bottom topography (for numerical reasons and to reduce complexity). But...
agupubs.onlinelibrary.wiley.com
Turbulent Mixing and Dissipation Around Rough Seamounts
Small-scale topographic roughness can increase dissipation in seamount wakes by up to tenfold and enhance mixing by a factor of three This effect is most pronounced for seamounts typical of the S...
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UMD Science @umdscience.bsky.social · 15/05/2026
Meltwater from ice shelves changes the ocean in ways that drive faster melting—and most global climate projections don't include it ➡️ go.umd.edu/ice-loss Atmospheric and Oceanic Science's Madeleine Youngs is building simulations to track which ice shelves are closest to a tipping point. #ClimateSky
Top: A diagram illustrating the Antarctic ice shelf melt interactions between a floating glacier and warm water. Bottom: A heat map depicting the temperatures of the Antarctic ice shelf. Credit: Madeleine Youngs.
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Aida Alvera-Azcárate @aida-alvera.bsky.social · 15/05/2026
ok here goes my image of today of small stuff happening in the ocean #LiegeOcean26. Here foam from phaeocystis blooms along the coast of Belgium, forming these thin white lines you see in the picture (you might need to zoom) 🌊🧪 And remember the Liège colloquium 😀 www.ocean-colloquium.uliege.be
Satellite image showing the ocean in blue-green and the land in the lower right corner in clear green. Thin white lines parallel to the coast are foam evidencing the presence of phaeocystis globosa. This foam is not toxic but it can accumulate in the coast/beach. Sentinel-2 image on 9 May 2026.
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Aida Alvera-Azcárate @aida-alvera.bsky.social · 13/05/2026
Less than two weeks for the Liege Colloquium! #LiegeOcean26 🌊🧪 These two weeks are the craziest and most stressful of the whole year 🤪 So to relax myself, I'll be posting pretty submesoscale ocean images 😊 You can have a look at the programme and register at www.ocean-colloquium.uliege.be
A satellite image of the ocean in blue and turquoise, land in green and clouds in white. White dots over the water are white caps caused by wind. Turquoise water is seen to swirl around with ocean currents. The image has been taken in the Italian coast by Sentinel-2 on 24 October 2025
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Jacquelyn Gill @jacquelyngill.bsky.social · 13/05/2026
On NSF’s postdoc page, the biology and earth science fields have been completely eliminated; the only remaining fellowships are in math, astronomy, engineering, and “entrepreneurship.” Weird choice not to support research on the life support system for 8 billion people. www.nsf.gov/funding/post...
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Ben Sanderson @benmsanderson.bsky.social · 08/05/2026
ncview2 is a relatively faithful python port of David Pierce's ncview. It handles non-uniform grids, and can perform on-the-fly area averaging with multiple color maps. github.com/benmsanderso...
github.com
GitHub - benmsanderson/ncview2
Contribute to benmsanderson/ncview2 development by creating an account on GitHub.
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Joshua Weitz @joshuasweitz.bsky.social · 08/05/2026
Announcement for @nationalacademies.org "State of the Science" address on 6/2 declares: "Since McNutt delivered her 2025 address, federal funding for science has held steady, but significant cuts are still being considered." Really? On what planet is funding steady & cuts being *considered*? a 🧵
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Katie Mack @astrokatie.com · 22/04/2026
If there are inefficiencies in NASA science spending (and I don't doubt there are!) then addressing those WITHOUT reducing the budget would mean more science, more innovation, more return on investment, more benefit to humanity. But realistically, cutting science funding by half just cuts science.
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Jacob Wenegrat @roguewave.bsky.social · 12/03/2026
🌊 3 year postdoc position in our group here at UMD Studying interactions of internal waves and deep boundary currents, cross-scale energy fluxes, and Lagrangian observations of topographic wakes. Full info: wenegrat.github.io/misc/Submeso... Thanks for looking!
wenegrat.github.io
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Nick Pizzo @nickpizzooceans.bsky.social · 12/03/2026
First runs in the internal wave channel we are constructing! You are seeing the density perturbations via the Schlieren method. The stratification doesn't go up to the free surface and you can see reflections of the internal waves off that interface and the bottom. 🌊
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Tessa Hill @tessahill.bsky.social · 01/03/2026
Sigh. This is the directorate that funds all of the earth, ocean & atmosphere research at NSF.
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Jeremy Berg @jeremymberg.bsky.social · 13/02/2026
Directorate for Geosciences 5/11
A line curve showing number of awards for fiscal year 2026 compared to fiscal years 2021-2025 for the Directorate for Geosciences. The fiscal year 2026 curve lies well below curves for other fiscal years.
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Jacob Wenegrat @roguewave.bsky.social · 03/02/2026
🌊
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Dimitri Drekonja, MD, MS @dimitridrekonja.bsky.social · 24/01/2026
Alex from our time working together, while he was in nursing school. Later, he moved to ICU, working as a nurse to support critically ill Veterans. He had such a great attitude. We’d chat between patients about trying to get in a mountain bike ride together. Will never happen now
Alex Pretti from his early days working at the VA
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Dimitri Drekonja, MD, MS @dimitridrekonja.bsky.social · 24/01/2026
Alex Pretti was a colleague at the VA. We hired him to recruit for our trial. He became an ICU nurse- I lover working with him. He was a good kind person who lived to help and these fuckers executed him. White. Hot. Rage.
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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 14/01/2026
The red dot is a baby North Atlantic right whale trying to migrate up the east coast of the United states. The blue streaks are fast moving shipping vessels entering and leaving New York City harbor. One collision and the whale is dead. We need *mandatory* speed limits for these vessels! 🧪🦑🌍
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Jacob Wenegrat @roguewave.bsky.social · 11/01/2026
Also important here as noted is the restriction to not cut overhead rates (for some agencies that includes NSF).
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Alessandra Zimmermann @alesszimm.bsky.social · 05/01/2026
I come back from my winter PTO and day one Congress drops the text of a minibus. The dashboard has been updated with the Senate Homeland numbers, and all the info in the CJS-Int-E&W minibus. A House vote is scheduled tomorrow night, and Senate likely later this week. www.aaas.org/news/fy-2026...
aaas.org
FY 2026 R&D Appropriations Dashboard | American Association for the Advancement of Science (AAAS)
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Dr. Thomas Ronge @thomasronge.bsky.social · 04/01/2026
Wow, why have I never heard of the Ben Franklin mesoscaphe? Like human argo floats, 6 men descended to ∼600m and drifted submerged in the Gulf Stream for 30 days. Along the drift, the crew mapped seafloor properties, biology, noises, and acted as a human occupied CTD analyzing the water column.
An artist's drawing of the Ben Franklin submersible. The sub is shown with its side cut open to reveal the interior and technology of the submersible. A temperature map of the Gulf Stream with the track of the Ben Franklin superimposed on it. Beginning on July 14, 1969 off Florida, ending on August 14 off Nova Scotia.
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Jacob Wenegrat @roguewave.bsky.social · 30/12/2025
Hey, you could be my neighbor! Assistant Prof position at the Naval Academy: www.usna.edu/HRO/jobinfo/... 🌊
usna.edu
Assistant Professor (Ocean and Atmospheric Sciences)
Spring 2026 Ocean and Atmospheric Sciences tenure-track announcement.
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VisualPDE @visualpde.com · 25/12/2025
Some festive vortices to spin you into the new year! visualpde.com/fluids/vorti...
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Jacob Wenegrat @roguewave.bsky.social · 25/12/2024
Merry Christmas from the Southern Ocean in 1874 🌊
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Jacob Wenegrat @roguewave.bsky.social · 23/12/2025
“Liquid Mirror” is a real technique used for geophysical fluid dynamics lab experiments! Although drinking the experiment is not recommended… www.ocean.washington.edu/research/gfd...
ocean.washington.edu
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Mike Sieracki @msier.bsky.social · 21/12/2025
Our first direct hit. Oddly our oyster work is the most popular thing we do. Great return on investment for taxpayers funding bay restoration. cambridgespy.substack.com/p/horn-point...
cambridgespy.substack.com
Horn Point Confirms Deep NOAA Cuts
A nearly 50 percent reduction in federal funding for oyster restoration threatens to sharply reduce oyster production in the Chesapeake Bay, jeopardizing one of the region’s most successful environmen...
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Eos @eos.org · 18/12/2025
At an @agu.org Town Hall today, @ncar-ucar.bsky.social President Antonio Busalacchi spoke to #AGU25 attendees about what's at stake if NCAR is dismantled. One attendee asked anyone who uses NCAR research to stand up. Almost everyone in the room stood. Read more here: eos.org/research-and...
In a large conference room full of people, the audience doesn't fit entirely in the frame of a photo. Nearly everyone pictured is standing.
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Ken Caldeira @kencaldeira.com · 17/12/2025
One of the few public protests, here at Fall AGU, of Trump Administration actions. #AGU25
Protester outside fall agu meeting.  "Closing NCAR will harm the American public."
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Kate Marvel @drkatemarvel.bsky.social · 17/12/2025
It’s simply not possible to overstate how important NCAR is to US and world science. We need to fight this with everything we’ve got.
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Gavin Schmidt @climateofgavin.bsky.social · 12/12/2025
This is the only parody song about geophysical fluid dynamics you’ll ever need: urldefense.com/v3/__https:/...
urldefense.com
Call Me Charney: A GFD Parody
This was so fun to make!! #lamontdoherty #lamont #atmosphere #science #charney #GFS #vallis #geostrophic #quasigeostrophic #hydrostatic #rossby
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Jacob Wenegrat @roguewave.bsky.social · 06/12/2024
Tis' the season for making paper oceanography globes! 🌊 via Barry Klinger mason.gmu.edu/~bklinger/Se...
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Dan Garisto @dangaristo.bsky.social · 11/12/2025
Bit late on this, but yesterday DoD appealed this case about indirect costs to the First Circuit.
courtlistener.com
Notice of Appeal – #93 in Association of American Universities v. Department of Defense (D. Mass., 1:25-cv-11740) – CourtListener.com
NOTICE OF APPEAL as to 90 Memorandum & ORDER, 91 Judgment by Department of Defense, Peter Hegseth. Fee Status: US Government. NOTICE TO COUNSEL: A Transcript Report/Order Form, which can be downloaded...
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