Research

My research interests revolve around climate dynamics, with emphasis on tropical atmosphere dynamics.

I strive to understand the underlying principles behind the dynamics of large-scale natural phenomena in the atmosphere and oceans. In my research, I combine observational analysis with theoretical analysis using a hierarchy of models across a range of complexities.

Research topics I am engaged in include:

  • The tropical hydrological cycle
  • The width of the tropics (Tropical Width Diagnostics Working Group)
  • The effect of continent distribution on tropical climate
  • The relation of the atmospheric energy budget and tropical precipitation
  • Monsoon dynamics

The theoretical tools I use in my research include idealized models of the atmosphere and oceans which are amenable to mathematical analysis, an intermediate complexity general circulation model (FMS), as well as the analysis of comprehensive climate models. I also strive to anchor the research in observations. To handle the large variety of observational and modeling datasets, my students and I use a software tool I developed called GOAT (Geophysical Observation Analysis Tool).

GOAT (goat-geo.org)

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Due to a lack of a generally accepted data-archiving standard, geophysical data analysis often involves a great deal of time being wasted on learning the intricacies of particular datasets, redundant data conversions, interpolations, code adaptations, and the like.

GOAT (Geophysical Observational Analysis Tool) is a free MATLAB tool I wrote. It provides a standardized data-management interface for all geophysical data.

 

Ongoing grants and projects

  1. ISF 1185/17. Granted 2017 for 4 years. “Relating the Intertropical Convergence Zone to the atmospheric energy budget: Energetic constraints and mechanisms for variations on seasonal or longer timescales.”
  2. Israel Ministry of Science and Technology. Grant 61793. Lead PI: Dr. Chaim Garfinkel. “Understanding projections of a drier Eastern Mediterranean: from global-scale mechanisms to synoptic and local scale impacts on precipitation.”
  3. Member of the US CLIVAR “Changing width of the tropical belt” and Tropical Width Diagnostics working groups.