Experimental Measurements of Morphological Changes During Sublimation and Growth of Levitated Ice Particles
Abstract
Atmospheric ice crystals play important roles in modulating radiative and hydrological fluxes in the upper atmosphere. We have constructed an electrodynamic balance to study the sublimation, growth and light scattering properties of ice particles suspended in a temperature and humidity controlled environment. Experiments will be focussed on regimes in which surface impedances dominate the sublimation and growth. In our experiments single ice particles with various initial morphologies are levitated and stabilized by the superposition of ac and dc electric fields. Simultaneous video microscopy, levitation voltage and light scattering phase function measurements yield the particle size and shape during sublimation and growth. We will report shape changes, under various temperature and humidity conditions.
- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- March 1996
- Bibcode:
- 1996APS..MAR..B106S