Abstract
Abstract On 28 August 1978 a series of flights was made into small cumuli using the Desert Research Institutes B-26 research aircraft. The low values for the liquid water mixing ratio obtained in cloud indicate considerable entrainment of clear air. A comparison was made of the total water mixing ratio and wet equivalent potential temperature at various levels in cloudy air with the values for these parameters from a nearby clear air sounding. The results indicate that entrainment of clear air at cloud top is the dominant mechanism for diluting the liquid water content of the small cumuli studied. The requirements imposed on models for small clouds are discussed.
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