Accession Number : ADP001691

Title :   An Application of Dendrochronology to the Determination of the Recurrence of Severe Ice Storms,

Corporate Author : HYDRO-QUEBEC MONTREAL

Personal Author(s) : Felin,Beatrice ; Rivest,Julien

Report Date : JUN 1983

Pagination or Media Count : 8

Abstract : Major ice storms will cause extensive damage to vegetation. The combined effect of wind and ice loads will break off tree branches with the consequence that growth will be retarded for several years. In 1973 a very severe storm hit the North Shore of Quebec and up to 75 per cent of the dominant tree crowns of the conifers were broken by the combined action of ice and wind. Closer analysis showed that older breaks were still visible and the hypothesis was formulated that such breaks had also been the consequence of an ice storm and that the growth ring pattern would reflect these growth retarding events. A preliminary analysis of 90 tree samples was made to establish the feasibility of a technique which could aid in determining the recurrence of severe ice storms.

Descriptors :   *Ice, *Ice formation, *Trees, *Damage assessment, *Cold weather tests, Dendritic structure, Tree ring analysis, Plant growth, Retardation, Structural analysis, Predictions, Entomology, Data acquisition, Canada, Workshops

Distribution Statement : APPROVED FOR PUBLIC RELEASE