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<br />Solak, M. E., and R. B. Allan, 1986: The detection of supercooled liquid water-additional analysis of
<br />ground-based ice accretion measurements. Addendum to Final Report to Utah Division of Water
<br />Reso1Ufces. Atmospherics Inc., Fresno, CA, 50 PI'.
<br />
<br />No albstract.
<br />
<br />Sonka, S., and W. Easterling, 1985: Assessing the eConomic benefits of planned weather modification.
<br />Proceedings, 4th WMO Scientific Conference on Weather Modification, A Joint WMO/lAMAP
<br />Symposium, Honolulu, HI, August 12-14, 1985. World Meteorological Organization, Geneva,
<br />WMOffD-No. 53,41-44.
<br />
<br />No abstract.
<br />
<br />Stith, J. L., 1992: New techniques for studying the microphysical effects of cloud seeding. Preprints,
<br />Symposium on Planned and Inadvertent Weather Modification, Atlanta, GA, January 5-10, 1992.
<br />American Meteorological Society, Boston, MA, 156-160.
<br />
<br />No abstract.
<br />
<br />Stith, J. L., 1992: Observations of cloud-top entrainment in cumuli. Journal of the Atmospheric Sciences,
<br />49:1334-1347.
<br />
<br />Sulfur hexafluoride tracer gas was released during single aircraft passes just above growing convective
<br />turrets to study its entrainment into the clouds as they grew through the release altitude. The tracer was
<br />sampled in situ from a second research aircraft that carried a real-time sulfur hexafluoride analyzer.
<br />The results from three experiments are presented. They were done with clouds ranging in size from a
<br />vigorous convective turret to a small cumulus.
<br />
<br />The observations suggest that during the early stages of entrainment, the tracer remained mostly out of
<br />the cloud and was carried alongside the upper cloud regions by the circulation present there. In each
<br />experiment, concentrated tracer was first found on the edges of the turrets. Later, the tracer mixed into
<br />the central portions of the turrets where it had diluted considerably and mixed through most of the
<br />turret. The observations are consistent with the hypothesis that cloud-top entrainment occurs through a
<br />vortex-like circulation that brings air from above the cloud into the central region of the cloud. The
<br />results are compared to some recent conceptual and numerical models of entrainment.
<br />
<br />Stith, J. L., D. A. Burrows, and P. J. DeMott, 1992: Initiation of ice in clouds: Comparisons of numerical
<br />model results with observations. Proceedings, 11th International Conference on Clouds and
<br />Precipitation, Montreal, Canada, August 17-21, 1992. International Commission on Clouds and
<br />Precipitation, International Association of Meteorology and Atmospheric Physics, Innsbruck, Austria,
<br />196-199.
<br />
<br />No abstract.
<br />
<br />Stith, J. L., 1990: Observations of cloud top entrainment using gaseous tracer techniques. Preprints,iConference on Cloud Physics, San Francisco, CA, July 23-27, 1990. American Meteorological Society,
<br />Boston, MA, 532-535.
<br />
<br />No abstract.
<br />
<br />74
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