The 4th NLOA Conference, co-organized by CRM and ICM, gathered experts in Barcelona to discuss nonlinear dynamics in oceanic and atmospheric sciences. The event fostered interdisciplinary collaboration and international partnerships, with discussions on climate modelling and ocean dynamics.
Bellaterra, January 27th, 2025 – Last week, the Centre de Recerca Matemàtica (CRM), in collaboration with the Institut de Ciències del Mar (ICM), organized the 4th Nonlinear Processes in Oceanic and Atmospheric Flows (NLOA 2025) conference in Barcelona. The event, which took place from January 22 to January 24, brought together leading experts in mathematics, physics, oceanography, and atmospheric sciences to discuss the latest developments in nonlinear dynamics related to oceanic and atmospheric phenomena.
The conference, hosted at the ICM’s premises in the Vila Olímpica district, provided an international forum for researchers to explore open challenges and innovative solutions in ocean and atmospheric science. The program featured plenary lectures, thematic sessions, and networking opportunities aimed at fostering cross-disciplinary collaboration.
The conference featured a diverse lineup of plenary speakers, including Peter Ditlevsen, a climate scientist from the Niels Bohr Institute in Denmark. Ditlevsen delivered a talk titled Warning of a Forthcoming Collapse of the Atlantic Meridional Overturning Circulation (AMOC), highlighting the critical role this ocean current plays in regulating the climate of the North Atlantic region. He discussed alarming signs of its weakening, which could trigger severe climate disruptions across Europe and North America. While leading climate models project that a complete collapse is unlikely within this century, recent findings suggest it could occur much sooner if greenhouse gas emissions remain unchecked.
In addition to Professor Ditlevsen, the conference featured a diverse roster of plenary speakers, including Daniele Iudicone, from Stazione Zoologica Anton Dohrn, who discussed the interplay between oceanic ecosystems and physical processes. Bernard Legras, from the Laboratoire de Météorologie Dynamique – ENS, presented on the dynamics of stratospheric aerosol vortices. Amala Mahadevan, from the Woods Hole Oceanographic Institution, explored pathways for the vertical transport of organic carbon and oxygen in the ocean. Maria Josefina Olascoaga, from the University of Miami, offered insights into finite-sized buoyant particle dynamics in surface ocean flows. Lastly, Pablo Ortega, from the Barcelona Supercomputing Center, examined the role of ocean mesoscale processes in shaping future climate conditions.
An interdisciplinary meeting
The NLOA 2025 conference facilitated exchanges across disciplines, with participants discussing a broad spectrum of topics such as climate modelling, turbulence, transport processes, and predictive analytics for environmental monitoring. The event also featured interactive poster sessions, where early-career researchers showcased their contributions to the field.

A key aspect of the conference was its commitment to fostering international collaboration. Representatives from institutions across Europe, North America, and beyond engaged in dialogues about ongoing projects and potential future partnerships, underscoring the event’s significance in the global scientific community.
Visit the official websites of CRM and ICM for more information about the NLOA 2025 conference and upcoming initiatives.
About CRM and ICM
The Centre de Recerca Matemàtica (CRM) is a leading institution dedicated to mathematical research, with a focus on interdisciplinary applications. The Institut de Ciències del Mar (ICM) is a renowned centre specializing in marine and environmental sciences, contributing to cutting-edge research on ocean dynamics and climate change.
Further reading:
Check out La Vanguardia’s article featuring an interview with Professor Ditlevsen, and don’t miss the TV3 report showcasing Ditlevsen and Ortega.
Subscribe for more CRM News
|
|
CRM CommPau Varela
|
CRM July Newsletter
CAVARET 2 brings together 83 researchers on curves and abelian varieties at the Universitat de Barcelona
The second edition of CAVARET, "Curves, Abelian VArieties and RElated Topics", took place at the Faculty of Mathematics and Computer Science of the Universitat de Barcelona from 13 to 17 July 2026. Sixteen invited lectures and ten posters brought together 83...
Mathematics on board: CRM’s demand forecasting model enters service on Barcelona’s H12 corridor
The H12 has run along Gran Via for years. What TMB switched on in July is the set of upgrades designed for it inside eBRT2030, a Horizon Europe project testing electric Bus Rapid Transit in six European cities. Behind it, forecasting passenger demand at every stop...
Dídac Gil Rams defends his doctoral thesis on the splitting of separatrices in generalized standard maps
Supervised by Inmaculada Baldomá and Pau Martín, the thesis proves the existence of chaotic dynamics in a broad family of area-preserving maps and combines classical analysis with computer-assisted proof. The defence took place on 3 July 2026 at the FME (UPC).Dídac...
How to Protect Bacteriophages Without Trapping Them? Mathematics to Improve an Alternative to Antibiotics
Bacteriophages — viruses capable of infecting and destroying bacteria — are considered one of the most promising alternatives to tackle the growing problem of antibiotic resistance. However, for these treatments to work, phages must overcome several obstacles before...
The CRM hosts nine international students for the 10th Barcelona International Youth Science Challenge
Nine secondary school students from six countries spent eight days at the CRM in July, working through four minicourses on fluid dynamics, perturbation methods, iteration and chaos, and randomness from Markov chains to machine learning, plus a session on how...
The Mathematics Behind the Three CRM Lectures at ICM 2026
Three CRM-affiliated researchers, Xavier Tolsa (plenary speaker), Xavier Cabré and Joaquim Ortega-Cerdà, lectured at the ICM 2026 in Philadelphia. Cabré surveyed the regularity of stable solutions to reaction-diffusion equations, including his optimal dimension-9...
Crossing Dimensional Frontiers: a breakthrough in the shape of stable solutions to semilinear elliptic equations
More than twenty years of efforts were required to solve a central problem in the theory of partial differential equations. A body of work developed over decades —and recognized with the Frontiers of Science Award (2023)— culminates in the resolution of an open...
Anna Florio, third CRM Chair of Excellence: billiards, friction, and the value of staying
The dynamicist Anna Florio (CEREMADE, Université Paris Dauphine-PSL) spends the summer at the CRM as the centre's third María de Maeztu Chair of Excellence. She is working with Immaculada Baldomà and Tere Martínez-Seara on billiards in the analytic setting, and on 22...
Hong Wang wins the Fields Medal, a year after her Kakeya lecture at the CRM
Hong Wang (NYU Courant and IHES) has received the Fields Medal at the International Congress of Mathematicians in Philadelphia, alongside Yu Deng (University of Chicago), John Pardon (Stony Brook University) and Jacob Tsimerman (University of Toronto). In June 2025,...
A Conference on Nonlinear PDEs on the Occasion of Xavier Cabré’s Anniversary
One anniversary, eight speakers, July and PDES (People, Discussions, Emotions and Summer) in BarcelonaThe conference Nonlinear PDEs was held at the Institut d'Estudis Catalans (IEC) on 6 and 7 July 2026. While PDEs usually stand for Partial Differential Equations, the...
Jezabel Curbelo receives the 2026 ECCOMAS Jacques-Louis Lions Award
Jezabel Curbelo, full professor at the Universitat Politècnica de Catalunya and affiliated researcher at the Centre de Recerca Matemàtica, has been awarded the ECCOMAS Jacques-Louis Lions Young Investigator Award 2026, in the field of computational mathematics. The...













