Marcus van Lier-Walqui
@mvanlierwalq.bsky.social
140 followers 83 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.com
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
mvanlierwalq.bsky.social
Jeez that last berm so decisive
mvanlierwalq.bsky.social
Huge for del Grosso! Wish it was broadcast
mvanlierwalq.bsky.social
I strongly recommend a stand mixer!
Reposted by Marcus van Lier-Walqui
climateofgavin.bsky.social
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.
mvanlierwalq.bsky.social
In honor of Belgian Cyclocross National Championship
mvanlierwalq.bsky.social
Schreiber drive side dismount has been paying off there tho
Reposted by Marcus van Lier-Walqui
Reposted by Marcus van Lier-Walqui
leapstc.bsky.social
LEAP #MomentumFellow23 Mohammed Erfani presents "A33J-08: Spatiotemporal ML Models for Emulation of Atmospheric Composition" TODAY @ 15:30p, Salon H! https://buff.ly/4gtYhh1

@karadlamb.bsky.social + @mvanlierwalq.bsky.social

#LEAPEducation #AGU24 #NSF #CUSEAS
@agu.org
@columbiaclimate.bsky.social
Reposted by Marcus van Lier-Walqui
leapstc.bsky.social
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!

https://buff.ly/4ffc7CZ

#NSF #CUSEAS @agu.org @columbiaclimate.bsky.social
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...
buff.ly
Reposted by Marcus van Lier-Walqui
leapstc.bsky.social
"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)! https://buff.ly/49sVAtT

#NSF #CUSEAS @agu.org @columbiaclimate.bsky.social
How well can power laws describe microphysical processes in bulk schemes?
Understanding and accurately simulating cloud microphysics is crucial for impro...
buff.ly
mvanlierwalq.bsky.social
🧛
kenklippenstein.bsky.social
United CEO Andrew Witty gave an address to the company today (leaked to me), telling employees "we guard against...unnecessary care" and that "There are very few people in the history of the U. S. healthcare industry who had a bigger positive effect on American healthcare than Brian [Thompson]."
mvanlierwalq.bsky.social
Gets at an interesting issue. In trad ESMs, large scale interactions & processes are explicitly modeled via cloud parameterizations, but these large scale features are emergent properties of microphysics in km-scale models, which that may be more strongly nonlinear & harder to investigate via PPEs
mvanlierwalq.bsky.social
but if it's warm rain processes (rather than cold/mixed phase), then rain drops will tend to be smaller. However, in that case, rain water content will be systematically underestimated by reflectivity alone.... so the rain will seem wetter than radar would indicate!
mvanlierwalq.bsky.social
MacKay's book on Information Theory, Inference, and Learning Algorithms is one of my all-time favorites! RIP indeed.
mvanlierwalq.bsky.social
The criticism here also applies to the performative aspects of DEIA that I find annoying insomuch as they fail to address any of the structural issues that imperil the most vulnerable people (e.g. early career scientists who lack stability, money, and privilege) in our field
mvanlierwalq.bsky.social
I remember being fascinated (in high school!) by JET and the promise of ITER. Would sincerely love to see this tech succeed and prove wrong my worries that this buzz is an oversell.
mvanlierwalq.bsky.social
progress! 60 years ago we were 30 years away.
mvanlierwalq.bsky.social
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...
Capt. Grace Hopper on Future Possibilities: Data, Hardware, Software, and People (Part One, 1982)
YouTube video by National Security Agency
www.youtube.com