We're hiring! We have an open search for an Assistant Professor in physics of the ocean and/or atmosphere in Columbia's Dept. of Earth and Environmental Sciences. Please circulate this information to good candidates, and apply yourself if you are one! Ad & link to apply: apply.interfolio.com/173819

#MachineLearningEarth is here for you! MLEarth brings you fully accessible research at the intersection of machine learning and earth and #EnvironmentalSciences. Discover more from our Editor-in-Chief @pierregentine.bsky.social: ow.ly/EGG350WIQvq #earthscience #openaccess #machinelearning

Interested in how plant intrinsic water-use efficiency (iWUE) responds to rising CO2? Our new paper shows that CO2-enhanced iWUE is mainly driven by reduced canopy conductance, while stimulation of ecosystem photosynthesis is less detectable given current data length. www.nature.com/articles/s41...

Also excited to see our work accompanied by a View & Commentary by Dr. Jürgen Knauer. We sincerely appreciate the thoughtful perspective! www.nature.com/articles/s41...

Delighted to share our new paper "Reduced water loss rather than increased photosynthesis controls CO2-enhanced water-use efficiency: www.nature.com/articles/s41... , which demonstrates the strongly detectable impact of CO2 fertilization on canopy and stomata conductance,

Excited to share our new paper "When and where soil dryness matters to ecosystem photosynthesis" www.nature.com/articles/s41..., which resolves a long-standing debate as to whether soil moisture or atmospheric dryness dominates water stress response.

⚒️ Article: Prolonged hot-dry conditions induced by Rossby waves reduce northern ecosystem productivity @jiangong-liu.bsky.social @kornhuber.bsky.social @pierregentine.bsky.social‬ www.nature.com/articles/s41...

Excited to share our new Nature Geoscience paper on how persistent Rossby waves patterns are triggering simultaneous hot-dry extremes across western Europe, Asia, and the U.S., severely reducing vegetation productivity and carbon uptake. www.nature.com/articles/s41...

The National Science Foundation slashed the number of graduate research fellowships awarded each year to the most promising young researchers in half. This is how we make America great? By defunding support for our best and brightest young minds? This is pure idiocy www.nature.com/articles/d41...

So delighted to share our new paper, my little Covid project brought to a whole new level by Francesco Immorlano www.pnas.org/doi/10.1073/.... We demonstrate how future projections can be refined using transfer learning (fine tuning). This refines our estimates of global warming.

There had been many issues in the handling of the crisis on the Columbia campus last year and this year, yet this agreement is a first in US academic history, ending academic independence and freedom apnews.com/article/colu...

www.nytimes.com/2025/03/07/n... - Columbia is being dramatically cut and I hope that the place I have called home for 15 years with many fantastic colleagues will survive this attack - it is clearly not related to antisemitism but Columbia had been defined as the number one target in academia

"The universities control the knowledge in our society (...) We have to agressivly attack the universities (...). Fundamental lies that feminism is liberating (...) There is wisdom in what Nixon said, the professors are the enemy " bryanalexander.org/politics/the... www.youtube.com/watch?v=0FR6...

Excited to share some great collaboration on a new data assimilation framework with transformer encoding arxiv.org/pdf/2502.02884. Exciting times for data assimilation with ML

Please consider registering for this great conference events.columbia.edu/go/E3BAI

Related to mass federal firings today: If anyone out there in private sector has a need for a highly-qualified PhD-level wildfire risk modeler (or MS/PHD-level meteorologist), available immediately, please do reach out via email or DM! (Not for me, but trying to help others out.)

Today is International Day of Women & Girls in Science. Marie Curie, the first woman to win a Nobel Prize. Her contributions have left an indelible mark on the world of science & health & continue to inspire generations of scientists & innovators. 🔬 #WomenInScience #WomenInSTEM

www.statnews.com/2025/02/07/n... this will have very negative consequences on universities and research in the US. It is not clear if universities will have the capacity to survive with those cuts

Must read www.nature.com/articles/d41...

Regarding our 'Diffusion Graph Net' paper at #ICLR'25 openreview.net/forum?id=uKZ..., it's also worth mentioning that the full source code is already online github.com/tum-pbs/dgn4... , complete with notebooks, flow matching, and the full hierarchical diffusion graph net architecture 😁

When I decided to openly disclose my #ADHD 1/2 year ago, early career scientists started asking me for tips & how did I reconcile (undiagnosed) #ADHD with a science career. It’s been a long learning journey and some of it is laid out here: www.nature.com/articles/d41... #ADHDAwarenessMonth 🧠🌶️🌈

🎉 Zarr-Python 3 is here! 🎉 - Full support for Zarr v3 spec - Chunk-sharding for more efficient data storage - Major performance boosts with async I/O & parallel compression 💻 pip install --upgrade zarr 💻 conda install --channel conda-forge zarr Blog post: https://buff.ly/3C3OwYw

Great opportunity for a postdoc position at NYU with a great professor Sara Shamekh at the interface between turbulence, convection and machine learning apply.interfolio.com/158851

Good luck to LEMONTREE's @jianingfang.bsky.social who has just arrived at Seoul National University for his 1-month secondment with @youngryel.bsky.social! Looking forward to hearing more about their work on implementing Differentiable BESS @pierregentine.bsky.social @columbiauniversity.bsky.social

Excited to share our first paper on the optimal complexity of process representation in hybrid-ML models, with soil moisture limitation as a case study! 🚀We present a flexible, differentiable framework to test new process ideas & hypotheses. Huge thanks to my advisor Pierre Gentine for his guidance!

Excited to share a new paper led by Andrew Feldman www.nature.com/articles/s41..., demonstrating the key role of rainfall intensity/frequency on carbon cycling.

Excited to share the first paper on our new differentiable land model called DifferLand which allows learning entire functional form only by assimilating indirect data dx.doi.org/10.1029/2024.... Led by a great student: Jianing Fang. Some new science is possible with this model.

Most of my group will be at AGU. Here is a list of our presentations agu.confex.com/agu/agu24/me.... Hope to catch up with many of you there.

Arvind, me, and Jonah released a new pre-print on some pen and paper analysis of fundamental failure modes and old school stability analysis for neural PDEs typically used in AI for Science application. arxiv.org/abs/2411.15101. 1/n

Cool new work by Joe Lockwood (Data Science institute postdoc) dx.doi.org/10.1029/2024... demonstrating the power of diffusion models for downscaling/super-resolution

👋 hello I’m new. I miss the science Twitter of 2018! Is that the vibe here? I’m a 🌊🛰️ physical oceanographer who left #academia to create a mission-driven #startup called @earthmoverhq.bsky.social! You can read about my journey here: rabernat.medium.com/moving-on-fr...

I am thrilled to share Jianing Fang's new differentiable hybrid land model called DifferLand, which can learn both parameters but also new structural relationships directly from data and can fuse local and global data arxiv.org/abs/2411.09654. Many new questions can be addressed with this model.

Excited to share our new paper led by Jiangong Liu on thermal acclimation of canopy photosynthesis www.nature.com/articles/s41...