Accession Number:

ADA202036

Title:

Large Ice Crystal Charge Transfer Studies

Descriptive Note:

Interim scientific rept. 1 Sep 1987-31 Aug 1988

Corporate Author:

UNIVERSITY OF MANCHESTER INST OF SCIENCE AND TECHNOLOGY (UNITED KINGDOM) DEPT OF PHYSICS

Personal Author(s):

Report Date:

1988-10-28

Pagination or Media Count:

24.0

Abstract:

Laboratory studies of the charge transferred when ice crystals rebound off an ice surface continued. It is now widely accepted that thunderstorms are electrified by such interactions. A large cloud chamber allows us to grow ice crystals up to 800 micro and these collide with an ice target representing a falling graupel pellet. Our previous work showed that the presence of supercooled water in the cloud is of paramount importance and the precise effect this has on the charge reversal temperature above which graupel charges positively and vice versa is being investigated so that the results may be included in numerical models of thunderstorm electrical development. Keywords Thunderstorms, Electrification, Charge transfer, Ice crystals, Rime ice, cold chamber.

Subject Categories:

  • Inorganic Chemistry
  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE