Pinned Tweet
Thanks for sharing @UniofOxford !
Glad that people enjoyed my little cloud rant :)
EXPLAINED: Why some clouds appear to be lazy ☁️ 😴
In this episode of #LockdownWalks, @AndrewIWilliams reveals everything you need to know about clouds.
📽️ | @OxfordSparks
Andrew Williams retweeted
I'm currently returning to Toronto from a summit on the future of mathematics, at OpenAI. @SebastienBubeck asked me to talk a bit about the future we'd all like to avoid, where humans are mathematically disempowered. @Jacob_Tsimerman advised us to try to prioritize detail over correctness, and I have no doubt that I succeeded in deprioritizing correctness.
I tried to find a title that wasn't too bombastic:
Andrew Williams retweeted
Be the benchmark you wish to see in the world:
The recent successes of AI in on Erdős problems are largely due to @thomasfbloom creating a single website to focus attention and compute towards.
I strongly encourage people to also check out @EdgarDobriban's website for statistics/ML.
More generally, if you want to see progress in your area, then make a focused website with problems!
AI is getting great at math, but how good is it at solving real research problems in areas outside of those covered by Erdős problems? Towards gauging this, I have started putting together a list of unsolved research problems in mathematical statistics and machine learning, sourced from recent papers in a leading statistics journal, the Annals of Statistics (with some bonus COLT open problems: solveall.org/.
Currently >100 problems.
In my view, much of the value of AI for researchers in the mathematical sciences stems from helping with their own research problems. These are problems without known solutions. There are many math benchmarks, but few with the following properties:
(1) of a realistic research-level, so that solving them can potentially lead to a publication in a top journal (problems discussed in papers already, not contest math, not Millenium problems, not problems created for a benchmark, not problems that have a known solution);
I'd say Erdős problems are the best example of this.
(2) cover problems outside of the usual focus (combinatorics, number theory, ... ) of Erdős problems. Especially under-represented are domains of applied math, along with statistics, operations research, etc.
I'm interested in statistics and ML, so that's where I started, but this could grow over time.
Hope this can grow into something useful to the community! Happy to hear your thoughts...
Andrew Williams retweeted
Kamala - hasn’t lifted a goddamn finger since the election. Biden, who got us into this dystopia - not a goddamn word since “welcome home.” Obama? Too busy living that billionaire dream life. Bernie’s the only goddamn leader acting like he gives a shit about human civilization.
The line for the Bernie Sanders rally in Warren is so long it takes 10 minutes just to walk from the back to the front. People aren’t just showing up—they’re fired up.
The energy is with progressive leaders, not the moderates or corporate puppets. #BernieSanders #WarrenMI
Andrew Williams retweeted
An open letter to our fellow meteorologists and climate scientists from our Department Head, Steve Nesbitt
Andrew Williams retweeted
Looking for a postdoc position, or know someone who is? Interested in cloud feedbacks? @mzelinka and I are recruiting for a project focused on high cloud feedbacks funded through the DOE RGMA program. Feel free to contact us for more information. Please share! jobs.virginia.edu/us/en/job/…
Andrew Williams retweeted
I am super excited for our paper on the global km-scale ICON-HAM-lite aerosol-climate model to be out for discussion in @EGU_GMD!
Led by Philipp Weiss in @ClimateProc @OxfordPhysics as part of the @nextgems_eu project!
egusphere.copernicus.org/pre…
Andrew Williams retweeted
My department is hiring! @UW_AOS invites applications for faculty (asst/assoc) with research broadly related to modeling, remote sensing, and/or analysis of climate and extreme weather risk, impacts, or solutions. Part of campus RISE EARTH initiative - jobs.wisc.edu/jobs/professor…
Andrew Williams retweeted
An article on "Why should we keep working on theory and fluid dynamics in climate sciences?" by Prof. David Ferreira is the topic of our latest @UniRdg_Met research blog.
You can check it out here!
blogs.reading.ac.uk/weather-…
Andrew Williams retweeted
Doing good science is 90% finding a science buddy to constantly talk to about the project.
Andrew Williams retweeted
🚨JOB ALERT 🚨
I'm recruiting a postdoc to join my Tropical Systems Group in @tamu_atmo . The researcher will support & accelerate our research in tropical meteorology & km-scale atmospheric modeling. ⛈️
You can apply here 👉: shorturl.at/2ZinK
Email me if you have❔
Andrew Williams retweeted
Excited to share my latest research in @Nature on the role of western boundary currents in shaping climate variability 🌍📷 We find that SST variability in these ocean currents has a more robust influence on local climate than previously understood. Link: rdcu.be/dVUUz
Andrew Williams retweeted
First light from #EarthCARE!!! This is an incredible moment - the first ever global measurements of cloud, snow and rain fall speeds. The reflectivity is beautifully detailed and the fall speeds are clearer than we could possibly have dreamed of! (1/4)
The first results from #EarthCARE cloud profiling radar are here!
Here's how they look like and why you should be as excited as we are: esa.int/Applications/Observi…
The radar was provided by @JAXA_en and it's one of the four instruments aboard the satellite.
Andrew Williams retweeted
Faculty job opening: At Berkeley we're looking for an Assistant Professor in Earth & Planetary Science! Emphasis on, *but not limited to*, ocean science, geophysics and interior processes, and interface of Earth Science & mineral, energy, water resources.
aprecruit.berkeley.edu/JPF04…
Just wrapped up a fantastic week of climate outreach events in New Hampshire with Climate Up Close (climateupclose.org)!
For an insight into one of the events, see this nice write up in @nhpr by @mara_hop.
nhpr.org/nh-news/2024-08-02/…
Andrew Williams retweeted
W/Tim Cronin, we have a new paper looking into the tendency of mock-Walker simulations to form double-celled circulations under warming. This transition is robust to domain geometry, microphysics & fixed/interactive radiation, & seems to be assoc with extreme cold pool dryness
Andrew Williams retweeted
Promoting papers feels a bit strange this week considering everything going on, but I am excited about our new paper showing a larger influence of Gulf Stream anomalies on the atmospheric circulation over Europe in models that resolve weather fronts (1/6)
doi.org/10.1029/2023MS004123
Andrew Williams retweeted
New data set alert!
TAMU @tamu_atmo MESACLIP (formerly iHESP) data is available on AWS. This is a 500-year pre-industrial control run of high-resolution version of CESM2, with 25-km land and 10-km ocean resolution.
This is an unprecedented model run.
registry.opendata.aws/cesm-h…
Taking @NJTRANSIT is by far the worst aspect of my postdoc
Rail service into and out of Penn Station New York is subject to up to 1-hour delays due to police activity near North Elizabeth. Customers should visit njtransit.com/ABC for alternate service information.
Andrew Williams retweeted
I encountered a delightful little astrodynamics proof last week when an astronaut casually stated it as a fact, and when I looked skeptical, he just smiled and said, "Check it yourself."
Here's the statement:
"It takes 2 hours to orbit at the surface of any object made of rock"
Andrew Williams retweeted
Very excited to share my first publication!! Out in @CommsEarth!
Using causality, we show that the climate effects on #Cerrado’s burned area are hindered in highly converted landscapes (>40% land-use area).
nature.com/articles/s43247-0…
Puzzled?🧵👇