Center for AtmosphereOcean Science
The Center for Atmosphere Ocean Science is a unit of the Department of Mathematics, within the Courant Institute of Mathematical Sciences at New York University. A cornerstone of the Center is our PhD in Atmosphere Ocean Science and Mathematics, a companion to the department’s PhD in Mathematics.
News & Research

Heat and carbon coupling reveals ocean warming due to circulation changes
Sept. 23, 2020Laure Zanna and Ben Bronselaer developed a new method to analyze the global uptake of heat and carbon in the ocean. Their results show that ocean warming patterns will increasingly be influenced by simple uptake of atmospheric warming, making them easier to predict. This is in contrast to the past 60 years, over which time circulation changes have been viewed as key factors in shaping ocean warming patterns. Read More

Statistical forecasting of the El Nino Southern Oscillation
Feb. 25, 2020CAOS researchers Xinyang Wang and Dimitris Giannakis in collaboration with Joanna Slawinska of University of WisconsinMilwaukee have developed a datadriven technique for statistical forecasting of the El Nino Southern Oscillation (ENSO), based on a combination of kernel methods for machine learning with techniques from operatortheoretic ergodic theory. Read More

Untangling waves and vortices from limited observations
Feb. 6, 2020CAOS researchers H. Wang and O.Bühler have developed a numerically robust algorithm to decompose the 1D energy spectra obtained from ship/aircraft data sets. This work is featured in Focus on Fluids by Journal of Fluid Mechanics. Read More

Predicting fluids flows from Lagrangian drifter observations
Oct. 30, 2019Courant researchers M. A. Mohamad and A. J. Majda studied how Lagrangian observations can be used to recover Eulerian properties of a fluid flow using data assimilation techniques. They show how exact and approximate algorithms, which combine observations with a model, can be used to predict Eulerian properties of the flow field.
Thumbnail: NASA Earth Observatory Read More 
A fluxbalanced fluid model for plasma edge turbulence with coherent zonal jet creation
June 12, 2019Courant researchers A. J. Majda, D. Qi, and A. J. Cerfon propose a fluxbalanced model to improve the understanding of plasma edge turbulence and creation of zonal structures and develop a theory to address the generation and persistence of largescale coherent flow structures in these models. Read More