Cristi Proistosescu
cristiproist.bsky.social
Cristi Proistosescu
@cristiproist.bsky.social
Assistant Professor - School of Earth Sciences @ Illinois
And speaking of future heatwaves.

New paper alert! A tour de force by my (now former) PhD student Adam Bauer.

We introduce SMACM (Soil Moisture Atmosphere Coupled Model): a simple(ish) nonlinear Hasselman model to explain the non-linear relationship between temperature and soil moisture.
doi.org
January 5, 2026 at 5:50 PM
Good thread!

Also, about that “Great Lakes/midwest as a climate haven”….

The physics of moist heatwaves is very much still an open research topic. But, as of right now, it does not look great for the midwest/great lakes region.
January 5, 2026 at 2:11 PM
Reposted by Cristi Proistosescu
Anecdata on most popular texts (not in order):
- Terry Pratchett (by a lot)
- Far Side
- Calvin and Hobbes
- Science texts
- Neuromancer
- Hitchhiker's Guide
- Lord of the Rings
- Ursula K. LeGuin
- A fair number of manuals of some kind.

IMHO most of the jokey submissions were not very funny?
Ok, everyone, what book is sacred enough to you to get sworn in on?
Strange takes on Mayor Zamdani swearing his oath on the Qu’ran. It has nothing to do with church & state. The point of the oath is for the person swearing in to do so upon some text that is sacred TO THEM. Some Presidents swore in w/o any book. John Quincy Adams was sworn on a law book. His choice.
January 2, 2026 at 1:14 PM
Discworld: Wee Free Men, Hogfather, Night Watch, Small Gods.
Ok, everyone, what book is sacred enough to you to get sworn in on?
Strange takes on Mayor Zamdani swearing his oath on the Qu’ran. It has nothing to do with church & state. The point of the oath is for the person swearing in to do so upon some text that is sacred TO THEM. Some Presidents swore in w/o any book. John Quincy Adams was sworn on a law book. His choice.
January 2, 2026 at 3:07 AM
To join in the discourse of the day:

If i ever get elected to office (unlikely), I will be swearing in on a copy of Terry Pratchett ‘s “The Wee Free Men”. (Or maybe Hogfather).
January 2, 2026 at 1:42 AM
Dear diary,

I think my 4-year old is trying to Home Alone me.
January 1, 2026 at 7:43 PM
January 1, 2026 at 3:24 AM
Reposted by Cristi Proistosescu
BRB. Starting a Stratospheric Aerosol Injection startup called “Mount Doom”.
December 30, 2025 at 9:05 AM
BRB. Starting a Stratospheric Aerosol Injection startup called “Mount Doom”.
December 30, 2025 at 9:05 AM
Reposted by Cristi Proistosescu
If i were a 5yo with a bad cold and fuck all to do, i would simply sleep past 5:30 in the morning.
December 24, 2025 at 4:48 PM
So here is a legal/technical question:

Who “owns” NCAR?

Isn’t NCAR operated by UCAR, which is a university consortium?

How does the govt have authority to restructure NCAR?

They can defund it, sure, but how could they restructure it?
December 18, 2025 at 4:30 PM
Why is there a giant empty hall with a creepy carousel in the AGU convention center?

#AGU25
December 18, 2025 at 4:38 AM
Reposted by Cristi Proistosescu
Assume N cubes of equal volume.

What is the arrangement that minimizes the average distance between any 2 cubes? I feel like it should be a sphere (or a big cube)?

What is the arrangement that maximizes that distance? Probably a straight line?

This is a skeet about convention centers.

#AGU25
December 17, 2025 at 12:56 AM
Reposted by Cristi Proistosescu
The year is 2050 and we let Cristi organize AGU
December 17, 2025 at 1:14 AM
Assume N cubes of equal volume.

What is the arrangement that minimizes the average distance between any 2 cubes? I feel like it should be a sphere (or a big cube)?

What is the arrangement that maximizes that distance? Probably a straight line?

This is a skeet about convention centers.

#AGU25
December 17, 2025 at 12:56 AM
O'Hare airpot. 4 hour delays so far, and no estimated departure time.

Waiting for one more crew member

More like waiting for Godot
December 15, 2025 at 6:48 PM
Reposted by Cristi Proistosescu
I'll be on sabbatical starting January 1, 2026, and if anyone is looking for a guest speaker for department seminars, I'm happy to discuss possible dates. Reskeet widely! 🧪⚒️
August 1, 2025 at 7:22 PM
Reposted by Cristi Proistosescu
📢Submit to our EGU session!📢

We are organizing a session at EGU 2026 in Vienna, with a focus on climate sensitivity, radiative feedbacks and the pattern effect!

If you work on anything related to climate sensitivity, we'd love to have you! 🥳🥳🥳 Submit soon! :)
December 9, 2025 at 7:54 PM
Reposted by Cristi Proistosescu
I believe eigen fly. I believe eigen touch the sky.
November 26, 2025 at 4:56 PM
- 5mo old: ear infection
- 4 year old: pneumonia
- me: bronchitis
- NSF panel: next week
- AGU: the week after

Doctor: Take these steroids and antibiotics and be sure to get 10h of sleep for the next 5 days.

Me: That's 2h per night. I can do that.

Doctor: 10h PER NIGHT! PER NIGHT!

Me: 🤪🤣🫠
December 6, 2025 at 4:41 AM
Reposted by Cristi Proistosescu
I always come back to this one. Especially since after being done with the middle East, he was appointed to solve Climate Change (US Climate Envoy).

theonion.com/man-who-coul...
December 5, 2025 at 5:26 PM
I always come back to this one. Especially since after being done with the middle East, he was appointed to solve Climate Change (US Climate Envoy).

theonion.com/man-who-coul...
December 5, 2025 at 5:26 PM
Dear senior profs who have written tenure letters.

Can you help demystify the process for some junior profs up for tenure soon?

What do you look for? How do you make your evaluation?

We are told that the letters are the most important part of the file, but not what letter writers look for.

1/
December 4, 2025 at 8:29 PM
So what's people favorite preprint server these days for climate science - especially in the dynamics/data-science (Stats & ML) space?

ArXiv - Atmos and Ocean Physics?
EarthArXiv?
ESS Open Archive?
EGU Sphere?
December 4, 2025 at 7:27 PM