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CESR Research Groups
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The Theoretical Climate Dynamics (TCD) group, led by Prof. Michael Ghil, studies climate dynamics on all time scales---from intraseasonal, through interannual and interdecadal, to millenial---using the methods of dynamical systems theory.  They apply these methods to observations, numerical models, and experiments concerning the climate system---the atmosphere, ocean, bio- and cryosphere---through collaboration with other researchers.

Prof. James C. McWilliams leads a group with ongoing research in regional ocean modeling, geostrophic turbulence, and vortex interactions.  A center of effort within the group includes development and application of the UCLA Regional Oceanic Modelling System (ROMS).

Climate variability involves strong interactions among climate systems, and certain phenomena, such as El Niño, that arise from interactions which could not exist in individual systems alone. The Climate Systems Interactions (CSI) group, led by Prof. J. David Neelin, develops theory and modeling aimed at understanding these interactions.   The group specializes in the application of hierarchical climate modeling: building a hierarchy of models of successively less complexity, until the phenomenon has been distilled down to it's essential elements. The more complex models aim to simulate the phenomena while the simpler models allow theoretical understanding. Many climate research groups make use of hierarchical modeling; a particular concern of this group is to practice it systematically and attempt to make the derivation of the simpler and intermediate complexity members of the hierarchy as clean as possible.


The main goal of the Biogeochemistry Research Group, led by Prof. N. Gruber, is to gain a better understanding of the interactions between physical, chemical, and biological processes that control the distributions of climatically improtant elements and their change over time.   They use a broad palatte of chemically and physically based methods that range from model simulations and interpretation of numerous observational data to the application of very precise and accurate methods  of measuring constituent and isotope concentrations.

Richard P. Turco is a founding director of the UCLA Institute of the Environment, and performs a variety of research including air quality assessment, cloud microphysics and aerosol research, remote sensing, and chemical modeling.