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A New Hypothesis for the Mechanism of Ice Nucleation on Wetted AgI and AgI·AgCl Particulate Aerosols
Publisher: American Meteorological Society
Abstract: A potential molecular mechanism of ice nucleation on AgI and AgI?·?AgCl particulates involves rearrangement of ordered water molecule clusters associated with hydrated Ag+ ion patches. This nucleation mechanism is thought ...
Experimental Studies of Nucleation by Dry Ice
Publisher: American Meteorological Society
Abstract: Mathematical and experimental errors cast doubt on the ice nucleus activity spectrum of falling dry ice pellets as reported by Fukuta et al. (1971). Preliminary laboratory studies have established that ice embryos or small ...
An Application of Chemical Kinetic Theory and Methodology to Characterize the Ice Nucleating Properties of Aerosols Used for Weather Modification
Publisher: American Meteorological Society
Abstract: Chemical kinetic theory and methodology is applied to examine the ice nucleating properties of silver iodide (AgI) and silver iodide-silver chloride (AgI-AgCl) aerosols in a large cloud chamber held at water saturation. ...
An Interpretation of the Mechanisms of Ice-Crystal Formation Operative in the Lake Almanor Cloud-Seeding Program
Publisher: American Meteorological Society
Abstract: In a 1984?85 winter cloud-seeding program at Lake Almanor, California, indium sesquioxide (In2O3) aerosol particle generators were collocated with silver iodide (AgI) aerosol particle generators as a source of inert tracer ...
Characterization of a Modified Hexagonal Silver Iodide Ice Nucleus Aerosol
Publisher: American Meteorological Society
Abstract: A new ice nucleant aerosol was produced by combustion of a 2% AgI-0.5 mole % Bil3-NH4I-acetone-water solution. The ice nucleating effectiveness of this aerosol is an order of magnitude greater than AgI alone at ?10°C. An ...
Enhanced and Oriented Riming of Growing Ice Crystals
Publisher: American Meteorological Society
Abstract: Geometrically oriented riming was found in Formvar resin replicas of columnar ice crystals collected in cumulus clouds at ?6°C during an aircraft field program in Texas. Rimed cloud droplets were found either on the ends ...
Application of Ice Nucleation Kinetics in Orographic Clouds
Publisher: American Meteorological Society
Abstract: Ice nucleation by silver iodide-sodium iodide aerosol particles has been characterized in the Colorado State University isothermal cloud chamber using the techniques of chemical kinetics. Two separate mechanisms of ...