Pierre Gentine
@pierregentine.bsky.social
Professor @Columbia University, Director of @LEAPstc NSF Science and Technology Center, Working on #climate, #water and #ecology, born at 335ppm, views my own
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
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#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...
Reduced water loss rather than increased photosynthesis controls CO2-enhanced water-use efficiency - Nature Ecology & Evolution
A machine learning approach using long-term observations of eddy covariance finds that the increase in plant intrinsic water-use efficiency under higher CO2 levels, across diverse ecosystems, is drive...
nature.com
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...
Water-use efficiency driven by water savings - Nature Ecology & Evolution
Analysis of land–atmosphere water and CO2 fluxes suggests that reduced water use by vegetation, rather than increased carbon uptake, is the driving factor behind the well-documented increase in vegeta...
nature.com
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,
This link will take you to a page that’s not on LinkedIn
lnkd.in
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.
When and where soil dryness matters to ecosystem photosynthesis - Nature Plants
Using a causality-guided explainable AI framework, Liu et al. show soil moisture dominates vapour pressure deficit in shaping global photosynthesis during water-limited conditions.
nature.com
⚒️ 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...
Northern ecosystem productivity reduced by Rossby-wave-driven hot–dry conditions - Nature Geoscience
Satellite observations suggest that prolonged hot–dry conditions induced by Rossby waves in the jet stream reduce ecosystem productivity, providing insights into the potential impacts of a future warm...
nature.com
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...
Northern ecosystem productivity reduced by Rossby-wave-driven hot–dry conditions - Nature Geoscience
Satellite observations suggest that prolonged hot–dry conditions induced by Rossby waves in the jet stream reduce ecosystem productivity, providing insights into the potential impacts of a future warm...
nature.com
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...
NSF slashes prestigious PhD fellowship awards by half
US National Science Foundation announces lowest number of Graduate Research Fellowship Programme recipients in 15 years.
nature.com
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.
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
pnas.org
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...
Under threat from Trump, Columbia University agrees to policy changes
Columbia University agreed to implement a host of policy changes, including overhauling its rules for protests and conducting an immediate review of its Middle Eastern studies department.
apnews.com
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
Trump Administration Cancels $400 Million in Federal Funds to Columbia University
The Trump administration blamed the university’s failure to protect Jewish students from harassment during protests last year over the war in Gaza.
nytimes.com
"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...
J.D. Vance | The Universities are the Enemy | National Conservatism Conference II
YouTube video by National Conservatism
youtube.com
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
arxiv.org
Please consider registering for this great conference events.columbia.edu/go/E3BAI
AI and Global Change Biology Symposium
<p>Degradation of natural ecosystems, climate change, and biodiversity loss are some of society's most vexing problems. This one-day symposium, sponsored by the Departments of Ecology, Evolution a...
events.columbia.edu
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
NIH plans to slash support for indirect research costs, sending shockwaves through science
The NIH said Friday night that it would slash support for indirect costs on all existing and future grants to 15%
statnews.com
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 🧠🌶️🌈
How I’m learning to navigate academia as someone with ADHD
Discovering how my brain works has helped me to better understand how to find equilibrium between my academic career and my well-being, says Ana Bastos.
nature.com
🎉 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
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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!
Pierre Gentine@pierregentine.bsky.social · 2y agoExcited 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.
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.
Large global-scale vegetation sensitivity to daily rainfall variability - Nature
Satellite data and field observations show that global annual-scale vegetation indices are sensitive to the daily frequency and intensity of rainfall, independent of the total amount of rainfall per y...
nature.com
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.
Exploring Optimal Complexity for Water Stress Representation in Terrestrial Carbon Models: A Hybrid‐Machine Learning Model Approach
An automatically differentiable hybrid model is developed to learn parameters and functional relationships in land carbon and water cycles Neural network emulators simulate ecological dynamics we...
dx.doi.org
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.
Pierre Gentine
Columbia University, Columbia University, Columbia University of New York, Columbia University
agu.confex.com
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
What You See is Not What You Get: Neural Partial Differential Equations and The Illusion of Learning
Differentiable Programming for scientific machine learning (SciML) has recently seen considerable interest and success, as it directly embeds neural networks inside PDEs, often called as NeuralPDEs, d...
arxiv.org
