Cicerone Page

Professor Ralph J. Cicerone

Chancellor
Daniel G. Aldrich, Jr.
Professor of Earth System Science
Professor of Chemistry

Earth System Science
274 Rowland Hall
University of California
Irvine, CA 92717-3100
Telephone: (949) 824-2157 (office); (949) 824-8578 (laboratory); (949) 824-8794 (department)
FAX: (949) 824-3256
Internet: rjcicero@uci.edu

RESEARCH INTERESTS

Surface sources and sinks of trace gases that are important for atmospheric chemistry and the global greenhouse effect, including methane, nitrous oxide, methyl bromide, and methyl chloride. Industrial and biological processes that release and/or consume such gases.

Stable isotope techniques applied to identifying sources and sinks of atmospheric chemicals.

Mathematical modeling of atmospheric chemical kinetic processes, including processes that control atmospheric ozone and that limit the lifetime of relatively inert gases.

Public policy relevant to global climate change and pollution issues.

Education

Massachusetts Institute of Technology -S.B. in Electrical Engineering, 1965

University of Illinois - M.S. (Electrical Engineering) 1967

University of Illinois - Ph.D. (Electrical Engineering and Physics) 1970

Awards and Honors

American Philosophical Society, elected 2000

Outstanding Alumnus, College of Engineering, University of Illinois, 2000

Bower Award and Prize for Scientific Achievement, (Franklin Institute, Philadelphia, 1999)

United Nations Environment Program Ozone Award, 1997

Invited to contribute a "Citation Classic" Current Contents, Institute for Scientific Information, Philadelphia, 1994 (coauthored with R. S.Stolarski)

Distinguished Alumnus Award, Dept. of Electrical and Computer Engineering, University of Illinois, 1992

American Academy of Arts and Sciences, Elected 1991

National Academy of Sciences, Elected 1990

James B. Macelwane Award, American Geophysical Union, 1979 for significant contributions to geophysics by an outstanding young scientist

RECENT PUBLICATIONS

1994:

Influence of the heterogeneous reaction HCl + HOCl on an ozone hole model with hydrocarbon additions, S. Elliott, R. J. Cicerone, R. P. Turco, K. Drdla, and A. Tabazadeh, J. Geophys. Res. 99, 3497-3508.

Seasonal variations in methane flux and delta¹³CH₄ values for rice paddies in Japan and their implications, S. C. Tyler, G. W. Brailsford, K. Yagi, K. Minami, and R. J. Cicerone, Global Biogeochem. Cycles 8, 1-12.

Fires, Atmospheric Chemistry, and the Ozone Layer, R. J. Cicerone, Science 263, 1243-1244.

1995:

Atmospheric Methyl Bromide (CH₃Br) from Agricultural Soil Fumigations, K. Yagi, J. Williams, N.-Y. Wang, and R. J. Cicerone, Science 267, 1979-1981.

1996:

Satellite Confirmation of the Dominance of Chloroflourocarbons in the Global Stratospheric Chlorine Budget, J. M. Russell III, M. Luo, R. J. Cicerone, & L. E. Deaver, Nature 379, 526-529.

Modeling atmospheric delta¹³CH₄ and the causes of recent changes in atmospheric amounts, R. Cicerone, S. Tyler, M. Gupta; Jo. of Geophy. Res. 101, 22923-22932.

Validation of Hydrogen Fluoride Measurements Made by the HALOE Experiment from the UARS Platform, J. M. Russell, II, L. E. Deaver, M. Luo, R. J. Cicerone, J. H. Park, L. L. Gordley, G. C. Toon, M. R. Gunson, W. A. Traub, D. G. Johnson, K. W. Jucks, R. Zander and I. G. Nolt, J. Geophys. Res. 101, 10,163-10,174, 1996.

1997:

12C/13C Kinetic Isotope Effects in the Reactions of CH₄ with OH and Cl, M. L. Gupta, M. P. McGrath, R. J. Cicerone, F. S. Rowland and M. Wolfsberg, Geophysical Research Letters, 24, 2761-2764, 1997.

Bromine Emissions from Leaded Gasoline, V. M. Thomas, J. A. Bedford and R. J. Cicerone, Geophysical Research Letters 24, 1371-1374, 1997.

1998:

Global Atmospheric Distributions and Source Strengths of Light Hydrocarbons and Perchloroethylene, M. L. Gupta, R. J. Cicerone, D. R. Blake, F. S. Rowland and I. S. A. Isaksen, J. Geophys. Res. 103, 28,219-28,237, 1998.

1999:

Methyl Bromide Emissions from Agricultural Field Fumigations in California, Jody Williams, Nun-Yii Wang and R. J. Cicerone, Journal of Geophys. Res. 104, 30,087-30,096, 1999.

Atmospheric Methyl Halides and Dimethyl Sulfide from Cattle, Jody Williams, Nun-Yii Wang, Ralph J. Cicerone, Kazuyuki Yagi, M. Kurihara and Fuminori Terada, Global Biogeochemical Cycles, 13, 485-492, 1999.

Carbon Isotopic Composition of Atmospheric Methane: A Comparison of surface Level and Upper Tropospheric Air, S. C. Tyler, H. O. Ajie, M. L. Gupta, R. J. Cicerone, D. R. Blacke and E. J. Dlugokencky, J. Geophys. Res., 104, 13,895-13,910, 1999.

Perturbation to Global Tropospheric Oxidizing Capacity Due to Latitudinal Redistribution of Surface Sources of NOx, CH₄, and CO, M. L. Gupta, R. J. Cicerone and Scott Elliott, Geophys. Res. Lett. 25, 3931-3934, 1998.

2000:

Measurements of Background Ethyl and Methyl Halides in California, Jason C. Low, Dr. Nun-Yii Wang, Jody Williams and Ralph J. Cicerone, submitted to J. Geophys. Res. Atmospheres. 2000.

Emissions of methyl halides and methane from rice paddies, Kelly Redeker, Nun-Tii Wang, Jason C. Low, Andrew McMillan, Stanley Tyler and R. J. Cicerone, Science 290, 966-969, 2000.

Experimentally determined kinetic isotope effects in the reaction of CH₄ with Cl: implications for atmospheric CH₄, S. C. Tyler, H. O. Ajie, A. L. Rice, R. J. Cicerone and E. O. Tuazon, Geophys. Res. Lett. 27, 1715-1718, 2000.