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Professor Ronald Carl Cohen is affiliated with both departments of Chemistry and Earth & Planetary Science. He is also a faculty Scientist at Lawrence Berkeley National Laboratory, Energy and Environment Technologies Division. He graduated from Wesleyan University with B.A. in 1985 and received Ph.D. from Department of Chemistry at Berkeley in 1991. His main research interests are chemical controls over atmospheric oxidants and the role of oxidants in controlling surface UV, air quality, and climate. In situ measurements of radicals (NO2, NO, NO3, OH, HO2, Br, ClO, BrO), reservoirs (peroxyacetylnitrates, organic nitrates, HNO3, HONO, ClONO2, N2O5) from aircraft, balloon and ground based platforms. Heterogeneous kinetics of nitrogen oxides. The paleotemperature record--chemistry and meteorology controlling the isotopic composition of rainwater and chemicals stored in glacial ice. Development of new, near-IR, visible, and VUV laser spectroscopies for sub-ppt detection of atmospheric trace chemicals.
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