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Marcus van Lier-Walqui

@mvanlierwalq.bsky.social
151 followers 85 following 22 posts

atmospheric scientist trying to make clouds more fluffy, rain more wet, and climate models more climate-y. NYC, NASA/GISS, Columbia, LEAP.

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Reposted by Marcus van Lier-Walqui
arseblog @arseblog.com · 19/05/2026
Never in doubt ❤️ ❤️
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Marcus van Lier-Walqui @mvanlierwalq.bsky.social · 21/05/2025
Nice Guardian article about us losing our office in Manhattan www.theguardian.com/environment/...
theguardian.com
Godfather of climate science decries Trump plan to shut Nasa lab above Seinfeld diner: ‘It’s crazy’
Over breakfast at Tom’s Restaurant, right below the historic Giss lab, James Hansen calls Doge’s decision a ‘big mistake’
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Reposted by Marcus van Lier-Walqui
arseblog @arseblog.com · 08/04/2025
What a night, what a performance from this far from 100% team, one of the great European nights at the Emirates. Declan Rice has produced two of the greatest free kicks you'll ever see at this level, and we 100% deserved that third goal too. Incredible. This team deserves so much love. #arsenal
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Reposted by Marcus van Lier-Walqui
Dr. Robin Tanamachi 🌪️ @tornatrix.bsky.social · 09/02/2025
“Why do I need NOAA? I’ve got a weather app.” Is equivalent to asking “Why do I need farms? I can go to the supermarket.” www.noaa.gov/about-our-ag...
noaa.gov
About our agency
NOAA is an agency that enriches life through science. Our reach goes from the surface of the sun to the depths of the ocean floor as we work to keep the public informed of the changing environment aro...
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Reposted by Marcus van Lier-Walqui
Gavin Schmidt @climateofgavin.bsky.social · 12/01/2025
With people blaming the LA fires on lesbian firefighters, space lasers, Oprah, Canadians, Mexicans, homeless people, and DEI initiatives, focusing your complaints on people justifiably mentioning climate change as a factor is… a choice.
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Marcus van Lier-Walqui @mvanlierwalq.bsky.social · 12/01/2025
In honor of Belgian Cyclocross National Championship
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Reposted by Marcus van Lier-Walqui
LEAP-STC @leapstc.bsky.social · 12/12/2024
"A44A-03: The Death of Autoconversion?" Before you lament, come hear Kaitlyn Loftus + @mvanlierwalq.bsky.social TODAY @ #AGU24: 16:20p in 201 (Conv. Ctr)! buff.ly/3VBECDV #NSF @agu.org #CUSEAS @columbiaclimate.bsky.social
buff.ly
The Death of Autoconversion?
Liquid drop growth via collision-coalescence drives warm rain and modulates low...
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Reposted by Marcus van Lier-Walqui
LEAP-STC @leapstc.bsky.social · 11/12/2024
LEAP #MomentumFellow23 Mohammed Erfani presents "A33J-08: Spatiotemporal ML Models for Emulation of Atmospheric Composition" TODAY @ 15:30p, Salon H! buff.ly/4gtYhh1 @karadlamb.bsky.social + @mvanlierwalq.bsky.social #LEAPEducation #AGU24 #NSF #CUSEAS @agu.org @columbiaclimate.bsky.social
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Reposted by Marcus van Lier-Walqui
LEAP-STC @leapstc.bsky.social · 11/12/2024
Take a stroll to see "A31G-1810: Discovering a Model for Depositional Ice Growth from Observations Using Neural Ordinary Differential Equations + Symbolic Regression" (by Kara Lamb), TODAY at #AGU24! buff.ly/4ffc7CZ #NSF #CUSEAS @agu.org @columbiaclimate.bsky.social
buff.ly
Discovering a Model for Depositional Ice Growth from Observations Using Neural Ordinary Differential Equations and Symbolic Regression
Depositional ice growth is an important process for the growth and evolution of...
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Reposted by Marcus van Lier-Walqui
LEAP-STC @leapstc.bsky.social · 11/12/2024
"How Well Can Power Laws Describe Microphysical Processes in Bulk Schemes?" Arthur Hu, @mvanlierwalq.bsky.social + Kaitlyn Loftus have ideas for you this morning in their #AGU24 poster (A31B-1693)! buff.ly/49sVAtT #NSF #CUSEAS @agu.org @columbiaclimate.bsky.social
buff.ly
How well can power laws describe microphysical processes in bulk schemes?
Understanding and accurately simulating cloud microphysics is crucial for impro...
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Reposted by Marcus van Lier-Walqui
LEAP-STC @leapstc.bsky.social · 09/12/2024
LEAP closes out Day 1 w/ @mvanlierwalq.bsky.social presenting "GC14E-08: Challenges and Opportunities for Unified Top-down + Bottom-up Constraint of ESM Parameterizations" - 15:12pm in Salon C! agu.confex.com/agu/agu24/me... #AGU24 #NSF @columbiaclimate.bsky.social @columbiauniversity.bsky.social
agu.confex.com
Challenges and opportunities for unified top-down and bottom-up constraint of ESM parameterizations
I will present work using perturbed parameter ensembles (PPEs) of models at mul...
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Marcus van Lier-Walqui @mvanlierwalq.bsky.social · 07/12/2024
🧛
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Marcus van Lier-Walqui @mvanlierwalq.bsky.social · 25/11/2024
This brilliant Guardian piece by Nesrine Malik cuts through the chaff like a hot knife through half-melted ice cream. "'Doing the work' focused on interpersonal dynamics of racism rather than on structural ones" www.theguardian.com/commentisfre...
theguardian.com
‘Woke’ didn’t lose the US election: the patrician class who hijacked identity politics did | Nesrine Malik
Why is this simple explanation being so widely embraced? Because it does not require a commitment to real, structural change, says Guardian columnist Nesrine Malik
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Marcus van Lier-Walqui @mvanlierwalq.bsky.social · 18/11/2024
I'm sure many have seen this wonderful presentation by Grace Hopper; it's worth underlining her point (multiple times, with permanent marker) the need to listen to young scientists, advocate for their careers, and get out of the way when they can lead. www.youtube.com/watch?v=si9i...
youtube.com
Capt. Grace Hopper on Future Possibilities: Data, Hardware, Software, and People (Part One, 1982)
YouTube video by National Security Agency
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Marcus van Lier-Walqui @mvanlierwalq.bsky.social · 14/11/2024
Am hesitant to get back into social media after my blissful year+ twitter hiatus, but here's a preprint of Greg Elsaesser and my (and others) work on using Bayesian inference, machine learning, and satellite observations to tune the NASA ModelE Earth System Model essopenarchive.org/users/538881...
essopenarchive.org
Using Machine Learning to Generate a GISS ModelE Calibrated Physics Ensemble (CPE)
A document by Gregory Elsaesser. Click on the document to view its contents.
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