Abstract: A series of ice nucleus measurements at Mauna Loa Observatory obtained concurrently with Millipore filter samples which were subjected to chemical analyses for chloride particles are briefly described. These aerosol ...

Abstract: Concentrations of ice nuclei detected with refrigerated devices vary with observational techniques and may be influenced by small differences in the thermal compatibility of otherwise similar instruments. To provide improved ...

Abstract: A brief description is given of a new refrigerated expansion chamber apparatus based on an Australian C.S.I.R.O. design for measuring ice nuclei concentrations. The compatibility of results between five instruments of ...

Abstract: Daily freezing nuclei observations taken in the Washington, D. C., area during the first 3 months of 1958 showed large fluctuations in time relative to probable observational uncertainties. Anomalous values were detected ...