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<br />One of the difficulties of contact freezing for cloud glaciation is the slow rate of interaction between
<br />aerosol particles and supercooled water drops. This is not greatly speeded by considering scavenging of
<br />nucleus aerosols by drops at temperatures above ooc. Rapid cloud glaciation in nature indicates that
<br />there is a rapid ice nucleation mechanism which can occur. Our recent studies focused on this rapid ice
<br />nucleation mechanism.
<br />
<br />Finnegan, W. G., and R. L. Pitter, 1988: Rapid ice nucleation by acetone-silver iodide generator aerosols.
<br />Journal of Weather Modification, 20:51-53.
<br />
<br />A field test conducted on 10 January 1987 confmned a postulate that rapid ice nucleation occurs on wet
<br />silver iodide aerosols at temperatures below -60C. The postulate was developed from laboratory tests
<br />and is consistent with results from winter orographic cloud seeding programs which have used ground
<br />generators sited at mountain tops and along ridges, where they are located within supercooled water
<br />clouds during their operation.
<br />
<br />Finnegan, W. G., and R. L. Pitter, 1987: Rapid ice nucleation by acetone-silver iodide generator aerosols and
<br />implications to winter orographic stonn seeding strategies. Preprints, 11 th Conference on Weather
<br />Modification, Edmonton, Alberta, Canada, October 6-8, 1987. American Meteorological Society,
<br />Boston, MA, 9-10.
<br />
<br />No abstract.
<br />
<br />Finnegan, W. G., and R. L. Pitter, 1986: Study of the initial aggregation of ice crystals. Preprints, Conference
<br />on Cloud Physics, Snowmass, CO, September 22-26, 1986. American Meteorological Society, Boston,
<br />MA, Vol. 2, 110-112.
<br />
<br />No abstract.
<br />
<br />Finnegan, W. G., 1984: Characterization of Loshe generator and NEI TB-l pyrotechnic aerosols in the CSU
<br />isothennal cloud chamber. Report to the North Dakota Weather Modification Board. Deparunent of
<br />Atmospheric Science, Colorado State University, Fort Collins, CO, 19 pp.
<br />
<br />No abstract.
<br />
<br />Finnegan, W. G., D. Feng, and L.'O. Grant, 1984: Composite AgI'AgCI ice nuclei efficient, fast-functioning
<br />aerosols for weather modification experimentation. Extended Abstracts, 9th Conference on Weather
<br />Modification, Park City, UT, May 21-23, 1984. American Meteorological Society, Boston, MA, 3-4.
<br />
<br />No abstract.
<br />
<br />Fletcher, J. A., 1986: NOAA perspectives and planned and inadvertent weather modification. Preprints,
<br />10th Conference on Planned and Inadvertent Weather Modification, Arlington, V A, May 27-30, 1986.
<br />American Meteorological Society, Boston, MA, 307-311.
<br />
<br />No abstract
<br />
<br />CI
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