• Reconstructing dynamics of chaotic systems using approximate eigenfunctions

    March 22, 2019

    A recent study by Suddhasattwa Das, Dimitrios Giannakis, and Joanna Slawinska investigates a phenomenon / object called approximate eigenfunctions to forecast dynamics of chaotic systems over arbitrary time scales. Read More

  • Understanding the atmospheric response to volcanoes

    Feb. 7, 2019

    Recent work by CAOS researchers Kevin DallaSanta and Ed Gerber with Matthew Toohey (GEOMAR Kiel) investigates the influence of volcanic eruptions on weather and climate using a hierarchy of models of varying complexity. Read More

  • Revealing the propagation characteristics of the Antarctic Circumpolar Wave and its teleconnection with the El Nino Soutern Oscillation

    Jan. 3, 2019

    Researchers at CAOS and UWM have studied the Antarctic Circumpolar Wave (ACW) in model and observational data via advanced data analysis techniques. The study has produced a decomposition of the ACW in terms of coherent spatiotemporal modes, some of which exhibit strong teleconnections with the El Nino Southern Oscillation. Read More

  • What limits our ability to characterize the variability of the large scale circulation of the extratropics?

    Dec. 3, 2018

    Courant faculty Dr. Edwin P. Gerber and Patrick Martineau (University of Tokyo) explore how dominant modes of atmospheric variability in the extratropics can be constrained with atmospheric reanalyses. Research finds the spread between reanalyses to be much less than the sampling uncertainty associated with the finite length of reanalysis records. Read More

  • Strategies for Predicting Statistical Responses in Complex Turbulent Systems

    Nov. 5, 2018

    CAOS researchers have developed a general mathematical framework to construct statistically accurate reduced-order models that have skill in capturing the statistical variability in the principal directions with largest energy of a general class of damped and forced complex turbulent dynamical systems. Read More

  • Modeling Ocean Uptake in an idealised Southern Ocean

    Nov. 2, 2018

    CAOS researchers in collaboration with researchers at Columbia University have investigated tracer fluxes and ocean upwelling in an idealized southern ocean model. The study finds the tracer fluxes to be sensistive to the vertical resolution, despite the reduction in the depths of the vigorously mixed boundary layers. Read More

  • Modeling the mélange

    July 2, 2018

    Icebergs are formed by calving, a natural process during which the ends of marine terminating glaciers break off and fall into the ocean. In Greenland, glaciers often terminate in narrow fjords with complex geometries, in which large iceberg becomes stuck for many months, freeze together, and form a sea-ice/iceberg ... Read More

  • Unlocking the Kolmogorov code of turbulence

    July 2, 2018

    Atmosphere and ocean flows present us with a complicated jigsaw puzzle of energetic motions on many scales, ranging from slow planetary waves on scales of 10,000 kilometers or so all the way down to small-scale three-dimensional turbulence, where dissipation of kinetic energy might take place on a scale of ... Read More

  • What controls moisture above the clouds?

    May 10, 2018

    CAOS researchers developed a new model of a moist world to explore the role of the tropical tropopause layer in regulating stratospheric water vapor. Read More

  • Oxygen, turbulence, and life in the oceans

    May 9, 2018

    CAOS researchers in New York and Abu Dhabi are exploring the complex interaction between turbulent ocean transport, biological interactions and oxygen in the Indian Ocean. Read More