A STUDY OF ICE FOG AND ICE-FOG NUCLEI AT FAIRBANKS, ALASKA. PART 2
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
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Studies on ice fog and ice crystals have been conducted at Fairbanks, Alaska, since 1962. USA CRREL Research Report 150, Part I, presented the results of the first study, conducted during January and February 1962, which was concerned with the identification of nuclei of ice crystals, ice-fog crystals, and supercooled droplets counts of condensation nuclei and measurement of ice-fog concentrations and liquid water content. The second study of the series, conducted during January and February 1963, is the subject of this report. This investigation encompassed 1 a meteorological study of conditions favoring the occurrence and persistence of ice fog 2 observations of ice-crystal formation with water vapor and hydrocarbon ice-forming nuclei provided by combustion products from a power plant chimney and an automobile exhaust 3 design of a cascade impactor for use with a tethered blimp 4 studies of the size relationship between ice-fog crystals and their nuclei and 5 a comparison of size distributions between some seeding agents and natural ice-fog crystals, and their nuclei.