Accession Number:

AD0758857

Title:

Freezing Water with Sized AgI Particles. Part 1: A Survey

Descriptive Note:

Technical rept.

Corporate Author:

ARMY LAB COMMAND WHITE SANDS MISSILE RANGE NM ATMOSPHERIC SCIENCES LAB

Personal Author(s):

Report Date:

1973-03-01

Pagination or Media Count:

23.0

Abstract:

A survey was made of previous experimental and theoretical attempts to determine the AgI particle size-ice nucleating activity relationship. This relationship is important since the successful phase transformation of water to ice in a supercooled cloud must depend on both the concentration and size of the injected AgI particles. Fletchers classical sublimation theory was found to be inconsistent with the few existing experimental results. The surprising conclusion was reached that a proven explanation of the behavior of AgI as a function of particle size has not been given. The Goetz Aerosol Spectrometer is suggested as the instrument capable of measuring the long elusive AgI particle size-activity relationship.

Subject Categories:

  • Atmospheric Physics
  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE