Department of Atmospheric Science
College of Engineering and Applied Science
University of Wyoming
Mailiing Address: 1000 E. University Ave., Laramie, WY 82071
Dept. phone: (307) 766-3245
fax: (307) 766-2635
B.S., Sir George Williams University (Montreal), 1961
M.S., Physics, McGill University (Montreal), 1964
Ph.D., Physics, McGill University (Montreal), 1968
Cloud and precipitation physics. Ice nucleation.
Past professional activities:
1970: Participant for "Review Report on Weather Modification", for the Canada Department of Agriculture.
1973: Participated in the writing of the AMS/NSF Cloud Physics Review.
1975: Organized and chaired at the University of Wyoming the Third International Workshop on Ice Nucleation Measurement. This workshop was held under the auspices of the Committee on Nucleation of the International Commission for Cloud Physics.
1975: Local host for AMS Symposium on the Prediction and Measurement of Ice Crystal Concentrations in Clouds.
1975-1977: Member, AMS Cloud Physics Committee
1976: Chair, Review Panel for NCAR's Research Aviation Facility
1976-1979: Member, Committee on Aerobiology, National Research Council, National Academy of Sciences.
1977: Chair, AMS Cloud Physics Committee
1977: Sabbatical (one semester) - Commonwealth Scientific and Research Organization, Cloud Physics Division, Sydney, Australia.
1978: Participant, Atmospheric Research Review Workshop for the NRC Committee on Atmospheric Sciences
1980-1982: Member, AMS Committee on Weather Modification
1980-1988: Chairman, Committee on Nucleation and Atmospheric Aerosols; International Commission on Cloud Physics International Association for Meteorology and Atmospheric Physics, IUGG.
1982-1983: Chair, Scientific Program Evaluations Committee of the University Corporation for Atmospheric Research.
1983: Reviewer, for Task Groups A, B, C, and D of the National Acid Precipitation Assessment Program.
1983: Participant, Discussion Seminar on Precipitation Management, organized by the National Research Council for the Agency for International Development.
1984: Co-Chairman, XI International Conference on Atmospheric Aerosols, Condensation and Ice Nuclei. Budapest, Hungary.
1985: Guest editor of "Journal de Recherches Atmospheriques" Special Issue.
1985: Invited Lecturer at the "Autumn Workshop in Cloud Physics and Climate", International Centre for Theoretical Physics, Trieste, Italy.
1986: Co-Author: "Report to the Office of Technology Assessment on the impact of ice-nucleating bacteria on crops".
1986-1987: Sabbatical leave (one year): Theta Associates. Short courses on cloud physics and weather modification given in Casablanca, Morocco and ; Cooperative Institute for Research in Environmental Sciences, Boulder, Colorado; Centre National de Recherche Meteorologique, Toulouse, France.
1987: Invited Lecturer at the "Second Autumn Workshop in Cloud Physics and Climate", International Centre for Theoretical Physics, Trieste, Italy.
1987-1991: Co-Chair, International Aerosol Climatology Project (sponsored by Int'l Commission on Clouds and Precipitation and by the Int'l Radiation Commission; IAMAP, IUGG). Chairman, Sub-Working Group #2 on Aerosol-Cloud Interactions.
1988: Lecturer, Chiang Mai, Thailand, US Bureau of Reclamation short course on weather modification.
1990: Invited participant -- Workshop on Precipitation Physics of Tropical Convective Systems. Fortaleza. Brazil.
1990: Invited participant -- Review meeting of the findings and recommendations of SACPEX I. World Meteorological Organization, Geneva, Switzerland.
1988-1992: Member, Advisory Committee for Atmospheric Sciences, National Science Foundation.
1988-1992: Editor, Journal of Applied Meteorology (American Meteorological Society).
1989-1993: Member, UCAR/UNIDATA Policy Committee
1993: Organizer - "Sixth International Conference on Biological Ice Nucleation", Laramie, Wyoming, August 4-6, 1993
1993: Member, Steering Committee for "Role of Clouds Energy and Water (ROCEW)", NSF.
1994: Member, Long-Range Planning Committee, NSF/ATM.
1994-1995: Sabbatical leave (academic year): Fulbright Scholar, Visiting Professor at the Department of Analytical Chemistry, University of Veszprem, Hungary. Visiting lecturer at the Eotvos Lorand University, Budapest, Hungary.
1995: Invited expert to the Precipitation Enhancement Workshop conducted under the auspices of the Multilateral Water Resources Group in support of the Middle East Peace Process. Terrigal, Australia.
1996: Invited expert to symposium on "Theoretical and Practical Aspects of a Regional Precipitation Enhancement Program for the Middle East and Mediterranean". Sponsored by the European Union. Bari, Italy.
1997: Invited participant at the "WMO Workshop on Measurements of Cloud Properties for Forecasts of Weather" held in Mexico City, Mexico
1999: Invited participant at the "Workshop on Warm Rain Modification." Sponsored by the World Meteorological Organization and the State of Durango. Mazatlan, Mexico.
1996-2000: Vice-President, International Commission on Clouds and Precipitation, IAMAS/IUGG
2001: Guest Editor, Special Issue of the journal "Atmospheric Research".
Board of Trustees, University Corporation for Atmospheric Research (first elected 1997-2000; reelected 2001-2004).
2002-2003: Reviewer of "Critical Issues in Weather Modification Research" report by the Committee on the Status and Future Directions in U.S Weather Modification Research and Operations, National Research Council. National Academies Press.
2005-2006: Evaluator for the WMO/UAE International Prize for Weather Modification.
2002-2012: Member of World Meteorological Organization Expert Team on Weather Modification Research (and its predecessor Panels).
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Department of Atmospheric Science
Last updated:  January 2016.