Colud Liquid Water Measurements on the Armored T-28: Intercomparison between Johnson-Williams Cloud Water meter and CSIRO (King) Liquid Water probe

摘要

Comparisons are made between liquid water concentration (LWC) readings obtained from a Johnson-Williams (J-W_ cloud water meter and a King (Commonwealth Scientific and Industrial Research Organisation) liquid water probe, both mounted on the armored T-28 research aircraft during penetrations of springtime convective storms in Oklahoma and Colorado. The King probe readings are almost always higher, being up to twice those of the J-W instrument in clouds with narrower cloud droplet spectra. In clouds with broader droplet spectra, the ratio often climbs to three or greater. The King probe responds partially to drops larger than cloud droplet size, and also to some ice particles, so its reading can be higher than the cloud LWC present.