Abstract: An x-ray diffraction study of AgI-NaI aerosols produced from a standard solution generator has revealed the formation of several hydrated phases. The aerosol samples were collected on glass filter paper and analyzed ...

Abstract: Utilizing standard solubility data in the literature it is seen that for 2:1 mole ratio AgI:NaI (or KI) aerosol compositions only AgI particles <0.01 ? radius are in danger of complete dissolution into hygroscopically ...

Abstract: Examination of the theory of heterogeneous nucleation of ice has led to a number of observations which indicate several inconsistencies between this theory and experimental observations. Using activity curves for AgI-bearing ...

Abstract: A cloud chamber mounted on a commercial x-ray diffractometer has been used to obtain ice crystal shapes, numbers, and volume information from clouds seeded with AgI-NaI aerosols. Data obtainable from this system include ...

Abstract: The effect of storage of AgI-NaI aerosol particles in moist and dry air upon the efficiency of nucleation of such particles has been investigated. Samples were obtained from a standard solution generator and tested in an ...

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Abstract: By means of the Lambert projection, wind vector data may be plotted onto a frequency map. The resulting diagram portrays the ?wind fabric? for the data sample of a single station or for groups of stations. The area-true ...

Abstract: A field instrument for sampling sulfate and nitrate particulate matter in a controlled chemical environment has been constructed and field tested. The instrument contains HNO3 and NH3 denuders and an ambient air path, all ...

Abstract: A quantitative study by x-ray diffraction, optical polarizing microscopy, and x-ray fluorescence spectrometry of fallout and ambient ash from three Mt. St. Helens eruptions has revealed a consistent picture of the mineralogical ...