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Cook and Vizy Awarded 1.3 Million by NSF to Study Climate Variability and Change in the Tropics

Kerry Cook (Professor, DGS) and Edward Vizy (Research Associate, DGS) have been awarded $1.3 Million from the National Science Foundation to study climate processes.

One project uses observations of the developing global warming signal to better understand sensitivity and resilience within the climate system to climate forcing.  The study focuses on the tropical and subtropical climate system’s response to tropical/subtropical forcing, and on regional scale processes. Are some regions more resilient to change under greenhouse gas forcing, while other regions more vulnerable to the same forcing? If so, why? What regional physical processes operate to produce or resist change?

The second project focuses on improving our physical understanding of the relationship between precipitation systems and the diurnal cycle of warm season precipitation over sub-Saharan Northern Africa, as there is a critical need to better understand the mechanisms influential for the development of organized rainfall systems in order to improve our predictive capabilities in models.  Analysis of the observations combined with high-resolution mesoscale modeling will be used to develop a comprehensive understanding of warm season rainfall systems over this region including their connections to the diurnal cycle, and local and regional environment factors that influence their development and variability.

Summertime Mesoscale Convective Systems over West Africa as seen from infrared satellite imagery on 19-20 July 2006.  Courtesy of www.meted.ucar.edu

Summertime Mesoscale Convective Systems over West Africa as seen from infrared satellite imagery on 19-20 July 2006. Courtesy of www.meted.ucar.edu

For additional information:
http://www.jsg.utexas.edu/researcher/kerry_cook/
http://www.jsg.utexas.edu/researcher/edward_vizy/

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