Freezing Nuclei Derived from Soil Particles

Open Access
Publisher Website
Google Scholar
Abstract
The majority of hydrosol particles in the submicron range in precipitation are produced by separation from the surfaces of larger hydrosolized aerosol particles. Sail particles may produce freezing nuclei active between –10 and –7C in concentrations up to 100 cm−3 per soil particle, and freezing nuclei active at temperatures warmer than –20C in concentrations greater than 1000 cm−3 per soil particle. It is concluded that neither the role of freezing nuclei in the development of precipitation nor even the distribution of freezing nuclei among cloud particles, raindrops and hailstones can be deduced from the determination of freezing nucleus populations in bulk precipitation samples. Abstract The majority of hydrosol particles in the submicron range in precipitation are produced by separation from the surfaces of larger hydrosolized aerosol particles. Sail particles may produce freezing nuclei active between –10 and –7C in concentrations up to 100 cm−3 per soil particle, and freezing nuclei active at temperatures warmer than –20C in concentrations greater than 1000 cm−3 per soil particle. It is concluded that neither the role of freezing nuclei in the development of precipitation nor even the distribution of freezing nuclei among cloud particles, raindrops and hailstones can be deduced from the determination of freezing nucleus populations in bulk precipitation samples.

This publication has 0 references indexed in Scilit: