Alex Robel

igsoc.orgSearch for new Scientific Editors for the Journal of Glaciology | IGSDue to a healthy increase in manuscript submissions to the Journal of Glaciology and to accommodate some retirements and personal leaves from

Calling all ice sheet and glacier modelers and cryo machine learning experts! We especially need your expertise as editors for @igsoc-pubs.bsky.social

International Glaciological Society@igsoc.bsky.social

Due to a healthy increase in submissions to the Journal of Glaciology & to accommodate some retirements / personal leaves from our Editorial Board, the IGS is looking for several new Scientific Editors (SEs) to serve the @igsoc-pubs.bsky.social. Deadline October 30th! www.igsoc.org/jglac-new-ses

Alex Robel reposted

International Glaciological Society

@igsoc.bsky.social

Alex Robel reposted

Jeremy Bassis

@bassisjeremy.bsky.social

I want to talk a little bit about this new Science paper led by star student Caroline Needle, Catherine Walker and myself. The idea goes back to this controversial new idea called the marine ice cliff instability. @whoi.edu @umich.edu

science.orgEmpirical constraints on ice cliff calvingWhen calving cliffs at the margins of Earth’s ice sheets exceed a critical height, runaway retreat may be initiated in a process called the marine ice cliff instability. However, sufficiently tall ice...

Alex Robel reposted

Dr. Twila Moon

@drtwilamoon.bsky.social

Job posting! Comes work with me @cires.colorado.edu. Let's do amazing things together! #polar #cryosphere #academicjob jobs.colorado.edu/jobs/JobDeta...

jobs.colorado.eduAssistant Professor of Polar or Cryospheric Sciences

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Quanta Magazine

@quantamagazine.org

Columnist Jordana Cepelewicz envisions a world where, despite AI’s dominion, future mathematicians will still have much to do. It just may look nothing like what they’re doing now. https://www.quantamagazine.org/is-ai-the-end-of-math-as-we-know-it-20261005/

quantamagazine.orgIs AI the End of Math As We Know It? | Quanta MagazineMathematicians are facing the sudden shift with grief, anger, and a desperate search for fresh ideas: “If we don’t adapt, there’s just no more math in 50 years.”

tinyurl.comCareersGeorgia Tech prides itself on its technological resources, collaborations, high-quality student body, and its commitment to building an outstanding and diverse community of learning, discovery, and creation. We strongly encourage applicants whose values align with our institutional values, as outlined in our strategic plan. These values include academic excellence, diversity of thought and experience, inquiry and innovation, collaboration and community, and ethical behavior and stewardship. Georgia Tech has policies to promote a healthy work-life balance and is aware that attracting faculty may require meeting the needs of two careers.

🚨🚨 Georgia Tech is hiring multiple open-rank tenure-track positions focused on 🍃 ecology 🍃 and 🌊 coastal processes 🌊 with a particular (but not exclusive) interest in those who work with communities in their research tinyurl.com/GT-eco-coasts

@gtresearch.bsky.social @gtsciences.bsky.social

Alex Robel reposted

International Glaciological Society

@igsoc.bsky.social

Next IGS Global Seminar: Danielle Grau (University at Buffalo) Antarctic Meltwater Alters Future Projections of Climate and Sea Level & Sunme Zhao (Stanford University) Two perspectives on small-scale topographic effects on Antarctic subglacial hydrology More info at www.igsoc.org/event/grau-a...

igsoc.orgIGS Global Seminar: Danielle Grau & Sunme Zhao | October 7Topic: Antarctic Meltwater Alters Future Projections of Climate and Sea Level Speaker: Danielle Grau Institution: University at Buffalo Topic: Two

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Steven J. Gibbons

@stevenjgibbons.bsky.social

Last month we published a Comment in Nature Reviews: Earth and Environment entitled "Ethical considerations for #geohazard digital twins". The full article is on doi.org/10.1038/s430... There is a read-only link on rdcu.be/fw1xz Full text after embargo period and I can provide pdfs to individuals.

Alex Robel reposted

Australian Centre for Excellence in Antarctic Science (ACEAS)

@antarcticsciaus.bsky.social

⛏️ OUT TODAY: new research led by ACEAS CI Prof Matt King @deformedearth.bsky.social and co-authors from 14 countries calls for an urgent, globally coordinated campaign to the Wilkes Subglacial Basin – arguably the last great unexplored frontier of #Antarctica ⬇️

nature.comDynamic instability of the Wilkes Subglacial Basin Ice Sheet, East Antarctica - Nature Reviews Earth & EnvironmentThe Wilkes Subglacial Basin is a marine-based sector of the East Antarctic Ice Sheet that is vulnerable to ocean-forced melting and climate warming. This Review assesses changes in ice-sheet extent in...

Alex Robel reposted

Kelly Hereid

@kellyhereid.bsky.social

Tapio Schneider is one of the scientists I look to most to distinguish AI-useful from AI-hype in climate science world. His thoughtful post on the Navier-Stokes blowup is a great example - AI is useful when experimental verification and data density can substitute for physical understanding... 1/2

clima.caltech.eduHeadlines and inside stories: understanding and trust in AI for mathematics, science, and engineering - CliMA[This post was prompted by the recent discussions about the Navier-Stokes Millennium Prize problem and is cross-posted from Terry Tao’s blog. It lays out the reasoning behind how we use AI at CliMA.] ...

Alex Robel reposted

Luke Zoet

@lzoet.bsky.social

New work on various physical properties of Antarctic tills we obtained from the Byrd Polar Rock Repository. Proves some useful baseline values for modeling. www.cambridge.org/core/journal...

cambridge.orgThe mechanical, hydrological and mineralogic properties of 11 Antarctic tills | Journal of Glaciology | Cambridge CoreThe mechanical, hydrological and mineralogic properties of 11 Antarctic tills - Volume 72

agu.org2026 Honorees Announcement | AGUWe applaud the 2026 Honoree’s achievements and thank all volunteers, nominators and supporters for their commitment to this program.

Congrats on well deserved @agucryo.bsky.social honors for @chingyaolai.bsky.social @gbinny.bsky.social and Sophie Nowicki! www.agu.org/honors/annou...

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Emily Atkin

@emorwee.bsky.social

17 Sept

A few weekends ago I went to Miami and attended 9 open houses in extremely high-risk flood areas to see what agents are telling prospective buyers about them. Here is my journey

heated.worldThe open houses at the edge of disasterWhat are buyers being told about climate risk in Miami? I posed as one to find out.

Alex Robel reposted

Shiva Muruganandham

@murushiv.bsky.social

17 Sept

Had a blast working with @iceclimate.bsky.social in the ICCL group over the last few years! Many thanks to my committee and everyone else in the GT EAS crew for a truly memorable ride.

Alex Robel@iceclimate.bsky.social

Congrats to our newest Dr., Shiva Muruganandham! He blew us away with his dissertation "Exploring Sea Level Futures: From Antarctic Ice Loss to Coastal Flood Adaptation"

Congrats to our newest Dr., Shiva Muruganandham! He blew us away with his dissertation "Exploring Sea Level Futures: From Antarctic Ice Loss to Coastal Flood Adaptation"

fact-sealevel.readthedocs.ioFramework for Assessing Changes To Sea-level (FACTS) — Framework for Assessing Changes To Sea-level (FACTS) 1.1.2 documentation

For his postdoc, Shiva is off to work on the next generation of @ipcc.bsky.social sea level projections for AR7 as a part of the FACTS project in @bobkopp.net's group fact-sealevel.readthedocs.io/en/latest/

Of course i forgot to tag the man himself @murushiv.bsky.social

Congrats to our newest Dr., Shiva Muruganandham! He blew us away with his dissertation "Exploring Sea Level Futures: From Antarctic Ice Loss to Coastal Flood Adaptation"

The second half of his PhD went all the way to the other end of the sea level problem, where he has developed an ML-based emulator of a building-scale coastal compound flood model, which can be used to evaluate the effect of coastal adaptation infrastructure on flooding in seconds

His work forms the technological backbone of our new CHORUS project, in which we are working with community groups in GA and NY to co-design a web platform to run real-time simulations of the effect of adaptation infrastructure on potential flood events eas.gatech.edu/news/09/supp...

Congrats to our newest Dr., Shiva Muruganandham! He blew us away with his dissertation "Exploring Sea Level Futures: From Antarctic Ice Loss to Coastal Flood Adaptation"

Shiva graduated from our interdisciplinary Ocean Science and Engineering PhD program, and it was truly reflected in the scope of his work and committee covering marine science, engineering and glaciology ocean.gatech.edu

ieeexplore.ieee.orgieeexplore.ieee.org

In the first half of his PhD, Shiva developed new methods to generate variable realizations of climate forcing for ice sheet models (see @ieeexplore.ieee.org paper linked) and led development of the NSF-funded Antarctic Ice Sheet Large Ensemble ieeexplore.ieee.org/document/102...

Alex Robel reposted

Alex Barron

@alexrbarron.bsky.social

15 Sept

Replying to @alexrbarron.bsky.social

Fourth, collaborate with faculty and staff doing work related to ES, community engagement, and faculty diversity and equity initiatives to develop a shared institutional vision for rewarding and/or supporting engaged scholarship.

Alex Robel reposted

Alex Barron

@alexrbarron.bsky.social

15 Sept

It’s Fall 🍎🍁which means new classes, new textbooks and…tenure packet submissions. My own experience with the tenure process led me to get very curious how institutions do and don’t reward engaged scholarship in the tenure process. 🧵

Alex Robel reposted

Proceedings of the National Academy of Sciences

@pnas.org

12 Sept

Year-to-year variability in the melting of the surface of the Greenland Ice Sheet may not be a harbinger of ice sheet destabilization, according to a study. Variability in the surface mass balance is an expected response to climate warming. In PNAS: https://ow.ly/2qq250ZMEvb

Alex Robel reposted

Georgia Tech College of Sciences

@gtsciences.bsky.social

sciences.gatech.eduSupporting Community-Led Flood ResilienceThe CHORUS research project will combine advanced flood modeling, artificial intelligence, and community partnerships to help coastal residents in Georgia and New York evaluate flooding solutions and ...

The new CHORUS research project led by @iceclimate.bsky.social will combine flood modeling, AI, and community partnerships to help coastal residents in GA and NY evaluate flooding solutions and shape resilience planning.https://sciences.gatech.edu/news/supporting-community-led-flood-resilience

pnas.orgPNASProceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...

Excited that our new paper is out @pnas.org! We show that the observed increase in variability of yearly Greenland ice melt over recent decades is not evidence of ice sheet destabilization. Story in 🧵 www.pnas.org/doi/10.1073/...

doi.orgOvershooting the critical threshold for the Greenland ice sheet - NatureSimulations using two state-of-the-art ice-sheet models show that abrupt melting of the Greenland ice sheet following overshooting of the global mean temperature critical threshold can be mitigated by...

However, this doesn’t necessarily mean the Greenland ice sheet isn’t close to destabilization, just that we need to further sharpen other tools that can determine how close we may be to that point doi.org/10.1038/s415...

github.comGitHub - aarobel/IllusoryEWS-Repo: A repository of code to reproduce the results in Robel et al. paper on "Illusory Early-Warning Signals of Greenland Ice Sheet Destabilization"A repository of code to reproduce the results in Robel et al. paper on "Illusory Early-Warning Signals of Greenland Ice Sheet Destabilization" - aarobel/IllusoryEWS-Repo

As always, the paper is open-access and all analysis code is available as an open-source repository @github.com github.com/aarobel/Illu...

2️⃣ Temporal autocorrelation in ice sheet surface melt is strongly susceptible to spurious trends on multi-decadal time scales, regardless of the ice sheet's proximity to destabilization

nature.comEarly warning signals have limited applicability to empirical lake data - Nature CommunicationsAbrupt regime shifts could in theory be predicted from early warning signals. Here, the authors show that true critical transitions are challenging to classify in lake planktonic systems, due to misma...

We conclude that traditional “early-warning signals” are not reliable indicators of ice sheet destabilization via surface melt because of this nonlinearity and consequent nonstationarity, a potential problem noted in previous EWS critiques www.nature.com/articles/s41...

We reproduced these trends in a simple model of ice sheet mass balance and come to two conclusions 👇

1️⃣ In a warming world, variability of surface melt in low-accumulation ice sheet regions will increase, regardless of the ice sheet's proximity to destabilization

doi.orgGreenland Ice Sheet surface melt amplified by snowline migration and bare ice exposureGreenland’s snowline exhibits large fluctuations and is a primary amplifier of ice sheet surface melt and runoff.

So what causes increasing variability? Prior work shows that as bare ice area increases over Greenland, the ice surface becomes more sensitive to incoming shortwave radiation. Ice sheet thinning amplifies this sensitivity but is not necessary to explain it doi.org/10.1126/scia...

doi.orgNonlinear rise in Greenland runoff in response to post-industrial Arctic warming - NatureIce-core-derived melt records reveal that atmospheric warming has recently intensified Greenland ice-sheet surface melt and runoff to levels that are exceptional over at least the last 350 years.

The result of this increasing sensitivity is a strongly nonlinear relationship between surface melt and atmospheric temperature, as previously measured by @luketrusel.bsky.social doi.org/10.1038/s415...

We were surprised to find that year-to-year variability has increased over most of the ice sheet, even though these model simulations are not coupled to evolving ice sheet elevation

doi.orgPNASProceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...

This isn’t consistent with a recent study which argues that trends in variance and autocorrelation of surface melt in Greenland are “early-warning signals” of ice sheet destabilization through a feedback between melt and ice sheet height doi.org/10.1073/pnas...

eas.gatech.eduMeet the Undergraduates of EAS | School of Earth and Atmospheric Sciences

A few years ago I asked Grant Holly, a @gtsciences.bsky.social undergrad, mentored by (now Dr!) Aminat Ambelorun, to analyze trends in variability from high-resolution models of surface mass balance (snowfall and melt) over Greenland eas.gatech.edu/undergrad/st...

Alex Robel reposted

Lily Dove

@solilyquy.bsky.social

9 Sept

Walked through the OpenAI Navier Stokes breakthrough in my graduate-level Ocean Dynamics class today and ended on this slide. We had a super thought-provoking and respectful conversation with a huge range of opinions. Georgia Tech students rock! 🐝

Alex Robel reposted

Ruth Mottram

@ruthmottram.eurosky.social

9 Sept

Publication day! Our finalised paper on melange processes at Greenland glacier fronts is out now! I wrote about what we did, what we found and what it means for Greenland ice sheet retreat..

sternaparadisaea.netA jumble of broken ice, and what it means for Greenland’s calving glaciers.Ice mélange — sometimes known as sikussaq in Greenlandic — is that chaotic jumble of icebergs, bergy bits and sea water that sits in front of marine-terminating glaciers. It’s been described …

sfchronicle.comEl Niño-driven wave to raise California sea levels by a foot — in weeksA slow-moving wave driven by El Niño is creeping up the coast of North America and should hit California within weeks.

2 Sept

The California coast is about to be a time machine to what every day in 2060 will look like

Anthony Edwards@edwardsanthonyb.bsky.social

An El Niño-induced coastally-trapped Kelvin wave will likely raise water levels about 9-14 inches (relative to 1993-2025 averages) along the California coast in early October. Water temperatures will also increase. The sudden increase will be as much as “the entire climate change anomaly in one go”