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Alex Robel

@iceclimate

Ice sheets, climate, math, coasts, community resilience. Associate Professor Georgia Tech EAS. Miami born πŸ‡§πŸ‡΄-πŸ‡¦πŸ‡·-πŸ‡ΊπŸ‡Έ he/him

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03.12.2023
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Latest posts by Alex Robel @iceclimate

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Irreversible Transitions of the Ocean Circulation in Antarctic Ice‐Shelf Cavities We present a low-dimensional box model of ice-shelf cavities capturing polynya-induced transitions between cold and warm circulation regimes Several Antarctic ice-shelf cavities are in a bistable...

The paper is out in GRL! doi.org/10.1029/2025...

10.03.2026 13:20 πŸ‘ 6 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
Estimating effective elasticity in grounding zones of the Ross Ice Shelf with tidal flexure from ICESat-2 | Journal of Glaciology | Cambridge Core Estimating effective elasticity in grounding zones of the Ross Ice Shelf with tidal flexure from ICESat-2 - Volume 72

happy Saturday! My first piece of academic work is out. What can tidal flexure tell us about ice in grounding zones? www.cambridge.org/core/journal...

07.03.2026 09:30 πŸ‘ 17 πŸ” 6 πŸ’¬ 1 πŸ“Œ 0
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Project Drawdown launches Climate Science Serving America Fellowship to support scientists working in the public good Fellowship seeks early- to mid-career researchers based in America who are committed to science and public expertise

FELLOWSHIP! We’re proud to announce the launch of the Climate Science Serving America fellowship, open to early- and mid-career scientists & engineers who work on climate solutions.

Full salary, benefits, and a research stipend. Remote anywhere in the United States.

drawdown.org/news/project...

20.02.2026 17:16 πŸ‘ 46 πŸ” 30 πŸ’¬ 0 πŸ“Œ 2
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The changing mass of the Antarctic Ice Sheet during ENSO-dominated periods in the GRACE era (2002–2022) Abstract. Large-scale modes of climate variability significantly influence Antarctic Ice Sheet (AIS) mass change. Improved understanding of the relationship between these climate modes and AIS mass ch...

John Bright Ayabilah's first paper is now published in The Cryosphere

tc.copernicus.org/articles/20/...

The changing mass of the Antarctic Ice Sheet during ENSO-dominated periods in the GRACE era (2002–2022)

He looks at various sub-periods during which El Nino or La Nina dominate 2/2

17.02.2026 22:54 πŸ‘ 4 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Summer School in Sea Level Science - Woods Hole Oceanographic Institution A 2026 Summer School in Sea Level Science (SSiSLS) for graduate students, postdoctoral researchers, and other early career scientists to be held at the Marine Biological Laboratory (MBL) in Woods Hole...

Great opportunity for grad students and postdocs interested in sea level science β€” WHOI Summer School, May 17-30

17.02.2026 21:36 πŸ‘ 30 πŸ” 19 πŸ’¬ 0 πŸ“Œ 0
Figure 1 from the paper.

Figure 1 from the paper.

3/ We analyzed 18 major Antarctic ice drainage basins using the ice-sheet model #PISM, gradually increasing global mean temperature to map their long-term response.

Result: different regions respond very differently to warming.

16.02.2026 11:50 πŸ‘ 18 πŸ” 8 πŸ’¬ 2 πŸ“Œ 0

In general, I think scientists should spend more (any?) time thinking about **why** they do their science, as it would cause them to think more critically about the means **by which** they do it.

13.02.2026 17:40 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

His premise is that if astronomy is more and more data science (it is) and if current AI are getting to human-equivalent level at data science (maybe, depends on who you ask), we gotta first discuss WHY people study the stars to then have a good conversation about what to do.

12.02.2026 15:31 πŸ‘ 3 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
Postdoctoral Associates - Sea Level Rise Projections and Climate Risk Assessment & Management The Rutgers University Department of Earth & Planetary Sciences invites applications for highly motivated, creative postdoctoral associates with interests in (a) sea-level rise projections and/or (b) ...

New postdoc opportunities in my group at Rutgers-New Brunswick, working on sea-level rise projections and/or coastal climate risk assessment & management

02.02.2026 14:52 πŸ‘ 28 πŸ” 25 πŸ’¬ 0 πŸ“Œ 0

Our neighbors in Minnesota are standing up for the rest of us. Let's stand up with them.

27.01.2026 21:11 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

We knew the NSF letter about NCAR would come. I think this is an occasion that will require great coordination and strategical thinking. UCAR should respond as a block, coordinating a response across universities (especially in the South, and large public universities that use NCAR data a lot)

24.01.2026 02:18 πŸ‘ 19 πŸ” 6 πŸ’¬ 2 πŸ“Œ 0

They refer to the section of the national climate assessment i led as β€œstomach churning” and I’m proud to have caused physical discomfort

23.01.2026 17:14 πŸ‘ 98 πŸ” 18 πŸ’¬ 2 πŸ“Œ 0
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US scientists push back as Trump eyes Greenland An open letter organized by US-based researchers working in Greenland opposes any takeover of the territory.

An open letter organized by US-based researchers working in Greenland opposes any takeover of the territory

go.nature.com/3YBbU7d

12.01.2026 15:36 πŸ‘ 124 πŸ” 57 πŸ’¬ 0 πŸ“Œ 3
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Buoyancy Feedbacks on Wave‐Induced Melting of Icebergs Buoyant convection from wave-induced melting acts to shield icebergs from warm seawater, reducing wave-induced melting Parameterizations that do not include realistic depth-dependent wave velocit...

New year, new paper out in JGR:Oceans! Led by PhD Candidate Madeline Mamer - she updates a 40-year old theory for the rate of iceberg erosion by waves, to include the effect of local ocean stratification by meltwater ❄️πŸ₯ΌπŸ§ŠπŸŒŠ doi.org/10.1029/2025...

06.01.2026 16:21 πŸ‘ 14 πŸ” 6 πŸ’¬ 0 πŸ“Œ 1
Georgia Tech EAS REU Program - Summer 2025 | EAS Research Experience for Undergraduates (REU)

Know an undergraduate looking for an opportunity to get paid to do cryospheric or other geoscience research this summer? Let them know about the GT EAS Broadening Participation REU here in Atlanta. Now accepting applications through ETAP! easreu.eas.gatech.edu

01.01.2026 21:54 πŸ‘ 5 πŸ” 8 πŸ’¬ 0 πŸ“Œ 0

It was an odd choice to pave this section south to north, as the new-build bridges were all on the southern side. The northern half this segment without bridges likely could have been delivered much earlier.

26.12.2025 20:48 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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It was a pleasure to be able to share my research this year at #AGU2025 @agu.org @agucryo.bsky.social

21.12.2025 18:22 πŸ‘ 5 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Awesome turnout in support of @ncar-ucar.bsky.social at #AGU25. Take a look at how many people use our products!

18.12.2025 19:35 πŸ‘ 102 πŸ” 31 πŸ’¬ 1 πŸ“Œ 7

It is hard to overstate how critical @ncar-ucar.bsky.social is to climate science in the US and around the world. It's the beating heart of our field. Generations of scientists have trained there, and almost everyone I know relies on deep collaborations with NCAR scientists. It's end is unthinkable.

17.12.2025 02:50 πŸ‘ 554 πŸ” 274 πŸ’¬ 28 πŸ“Œ 16

#AGU25

16.12.2025 20:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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🚨 Job alert! My colleague @asarhadi.bsky.social is advertising a two-year postdoctoral fellowship coastal resilience and machine learning for flood modeling through the Georgia Tech for Georgia’s Tomorrow program. See link for details: sarhadi.eas.gatech.edu/opportunities/

16.12.2025 20:10 πŸ‘ 2 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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Friends old and new from the GT Ice & Climate Group at #AGU25

16.12.2025 12:58 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The (spice) melange must flow (in models)!

12.12.2025 22:00 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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a baby cow is running in a field . ALT: a baby cow is running in a field .

Tuesday morning! Aminat Ambelorun ties calving to local sea level and finds a new positive feedback on ice sheet retreat agu.confex.com/agu/agu25/me...

12.12.2025 21:24 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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a drawing of a man with a mohawk and the words `` ch-ch-changes '' written on the bottom . ALT: a drawing of a man with a mohawk and the words `` ch-ch-changes '' written on the bottom .

And finishing up on Friday morning: Donglai Yang combines data and models to tell the story of Helheim glacier since 1998 and why it may be on the precipice of big changes agu.confex.com/agu/agu25/me...

12.12.2025 21:11 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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felix the cat is trying to open a safe door ALT: felix the cat is trying to open a safe door

On Friday morning: Angelo Tarzona will unlock the history of radar sounding on the Ross Ice Shelf and why institutions should digitize and release all their old dissertations agu.confex.com/agu/agu25/me...

12.12.2025 21:08 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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a crocheted gnome is pulling a ball of red yarn ALT: a crocheted gnome is pulling a ball of red yarn

Also that morning: REU and FSU undergrad Jacob Scalabrin knits together archival radar measurements from Ross Ice Shelf using PINNs agu.confex.com/agu/agu25/me...

12.12.2025 21:06 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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a man with a beard is giving you feedback ALT: a man with a beard is giving you feedback

Thursday morning: GT REU and Tufts undergrad Juliet Baker connects iceberg calving to melange variability through a new feedback framework agu.confex.com/agu/agu25/me...

12.12.2025 21:04 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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a robot with a helmet on his head is saying `` i am '' . ALT: a robot with a helmet on his head is saying `` i am '' .

Also that afternoon: Emory undergrad Leo Liu improves basal temperature estimates for North Greenland using machine learning agu.confex.com/agu/agu25/me...

12.12.2025 21:03 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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a person wearing a leather glove is pouring sand on a table Alt: the spice (melange) must flow

Wednesday afternoon: Paul Summers discovers the mechanism for sudden mΓ©lange collapse in Greenland fjords in the first coupled model of ocean and mΓ©lange evolution agu.confex.com/agu/agu25/me...

12.12.2025 20:59 πŸ‘ 1 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0