Accession Number : ADP001687

Title :   Determining Atmospheric Parameters during Ice Accretion from the Microstructure of Natural Ice Samples,


Personal Author(s) : Laforte,Jean-Louis ; Phan,C. Luan ; Nguyen,Du D. ; Felin,Beatrice

Report Date : JUN 1983

Pagination or Media Count : 10

Abstract : Based on earlier laboratory experiments which correlated the micro-structure of ice samples formed under dry and wet growth conditions to the four parameters listed above, several natural ice samples were collected on transmission lines after storms and were analyzed to determine atmospheric conditions prevailing during the storms. The temperature is determined from microstructure analysis. When it is possible to get some information about the duration of storm, fairly good estimates of wind speed, liquid water content and droplet sizes may be obtained. Several interesting case studies are presented in this report.

Descriptors :   *Ice, Ice formation, Transmission lines, Electric conductors, Cold weather tests, Atmospherics, Meteorological data, Microstructure, Data acquisition, Temperature, Wind, Velocity, Drops, Rain, Freezing, Particle size, Water distribution, Case studies, Crystal growth, Photography, Workshops

Distribution Statement : APPROVED FOR PUBLIC RELEASE