Mixed-phase clouds are recognized as significant contributors to the
modulation of precipitation and radiation transfer on both regional and
global scales. This study is focused on the analysis of spatial
inhomogeneity of mixed-phase clouds based on an extended data set
obtained from airborne in-situ observations. The lengths of continuous
segments of ice, liquid, and mixed-phase clouds present a cascade of
scales varying from 10 2 km down to a minimum scale of 100 m determined
by the spatial resolution of measurements. It was found that the phase
composition of mixed-phase clouds is highly intermittent, and the
frequency of occurrence of ice, liquid, and mixed-phase regions
increases with the decrease of their spatial scales. The distributions
of spatial scales have well-distinguished power-law dependencies. The
results obtained yield insight into the morphology of mixed-phase clouds
and have important implications for improvement in representing subgrid
inhomogeneity of mixed-phase clouds in weather and climate models.