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Michael Shahin

@laserglaciers.bsky.social
93 followers 137 following 11 posts

Postdoctoral researcher at UPenn | Glaciologist | Open source enthusiast | he/him

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Reposted by Michael Shahin
Alex Robel @iceclimate.bsky.social · 10/09/2026
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/...
pnas.org
PNAS
Proceedings 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...
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Reposted by Michael Shahin
Jeremy Bassis @bassisjeremy.bsky.social · 11/02/2026
If you've ever wondered what would happen if a response to a review was filled with really bad puns and references to Star Wars, I’ve got you covered. I just hope the reviewers rise to the occasion because I think we can do something really special here.
egusphere.copernicus.org
Brief communication: Nye was right!
Abstract. Despite decades of study, predicting crevasses penetration depths remains controversial. Nye provided one of the earliest estimates of crevasse penetration depths. Recently, a new theory, ca...
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Reposted by Michael Shahin
AGU Cryosphere Section @agucryo.bsky.social · 04/11/2025
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Michael Shahin @laserglaciers.bsky.social · 05/11/2025
The press release for our recent JGR: Earth Surface paper. A nice description about our project and the laser scanners
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Reposted by Michael Shahin
Will Harcourt @willharcourt.bsky.social · 14/10/2025
We have a new paper out! Work with @leighstearns.bsky.social, @laserglaciers.bsky.social, and Sid Shankar studying the potential of new ICEYE SAR satellite imagery to study the dynamic behaviour of ice mélange around the margins of the Greenland Ice Sheet. Read more here: tinyurl.com/mtc94juu
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Reposted by Michael Shahin
Alex Robel @iceclimate.bsky.social · 02/10/2025
Presenting Dr. Ziad Rashed!! 🧊❄️🍾🎉
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Michael Shahin @laserglaciers.bsky.social · 02/10/2025
🚨 New Publication 🚨 I’m excited to share our new paper out in @jgrearthsurface.bsky.social! Read more about calving mechanisms at Helheim Glacier from two autonomous terrestrial laser scanners (ATLAS) results here doi.org/10.1029/2024...
doi.org
Calving Mechanisms Inferred From Observations of Surface Depressions at Helheim Glacier, Greenland
Surface depressions on Helheim Glacier appear at a consistent location on the lee side of a subglacial ridge and have increased in frequency Observed calving episodes, regardless of calving style...
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Reposted by Michael Shahin
JGR: Oceans @jgroceans.bsky.social · 26/08/2025
Greenland's fjords are the gateways via which the ice sheet interacts with the open ocean. A large fraction of all the ice calved from the ice sheet melts within these regions. Kinne et al., explore how all this melt affects fjord circulation 🌊 🐻‍❄️ agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Bathymetry of Sermilik showing the major currents and a satellite image of the region showing large icebergs scattered around the fjord
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Reposted by Michael Shahin
Alex Robel @iceclimate.bsky.social · 07/07/2025
This comes on top of the quiet discontinuation of the NSF OPP program earlier this year. We are going to lose so many talented early career scientists as a result of these short-sighted decisions.
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Reposted by Michael Shahin
Jeremy Bassis @bassisjeremy.bsky.social · 09/05/2025
Everyone needs to understand that dismantling NSF will have devastating long term consequences in our competitiveness and innovation in science, technology and beyond. 1/
science.org
Exclusive: NSF faces radical shake-up as officials abolish its 37 divisions
Changes seen as a response to presidential directives on what research to fund
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Yao Lai @chingyaolai.bsky.social · 17/03/2025
news.stanford.edu/stories/2025... NASA Earth data + AI enable us to infer the constitutive models critical for ice dynamics. AI is useful, but no data = no discovery. Below is an example of the training data: a velocity map showing the dynamics of the Antarctic Ice Sheet. Source: #NASA.
news.stanford.edu
AI reveals insights into the flow of Antarctic ice
Stanford research focused on the large-scale movements of the Antarctic ice sheet could help improve predictions about how the continent will change in the future.
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Michael Shahin @laserglaciers.bsky.social · 12/03/2025
what a great paper! This really complicates seasonal tidewater glacier variability, which is already complicated 😵‍💫
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Michael Shahin @laserglaciers.bsky.social · 07/03/2025
A very timely and important read by the great @tankisandre.bsky.social
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Reposted by Michael Shahin
Lawrence Vulis @lvulis.bsky.social · 20/02/2025
From NSF EAR program director Raleigh Martin on LinkedIn #climatesky #greensky
Yesterday, my federal agency (NSF) experienced a sudden and mass firing of over 10% of our workforce. My own Division lost 20% of its staff. In the blink of an eye, we lost many brilliant scientists, dedicated civil servants, and parents/spouses/caregivers who no longer have a paycheck. The firing was completely arbitrary, with no actual plan to achieve "efficiency" but instead just picking off anyone with the fewest job protections. I grieve for my former colleagues and extend my hand to be of help however I can.

I still have a job - not based on my abilities but simply because my status makes me harder to fire. But who knows what comes next. I'm hoping this assault on science and government is just a passing storm, but even then the damage has already been devastating - careers broken, research disrupted, and resources wasted.

Science is the goose that lays golden eggs - unleashing human ingenuity and systematic thinking toward discoveries that transform our society for the better. Public science funding creates space for research that may not have immediate applications but will yield dividends down the road. Unfortunately, right now the science goose is being strangled and those golden eggs are being lost. Our society will be poorer, sicker, and weaker as a result.
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David Ho @davidho.bsky.social · 18/02/2025
A lot of our academic colleagues go to work at NSF for a couple of years as a rotator. In the programs that have funded me, rotators have been essential to keeping those divisions going. It's hard to see how these firings won't severely diminish NSF.
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CryoCommunity @cryocommunity.bsky.social · 10/02/2025
Aurora Roth and others have drafted a community letter affirming US researcher support for Greenland's self-governance and autonomy. Please consider reading and signing the letter (please use personal email if vulnerable to retaliation!) docs.google.com/forms/d/e/1F...
docs.google.com
Letter from US Researchers in Support of Greenland's Self-Governance and Autonomy
As researchers who work in and with Kalaallit Nunaat - Greenland, we strongly condemn President Trump’s attempts to purchase Greenland on behalf of the United States. We advocate for greater U.S. inve...
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