Severity and return periods of icing events in the Montreal area

被引：10

作者：

Henson, William ^{[1
]}

Stewart, Ronald ^{[1
]}

机构：

[1] McGill Univ, Dept Atmospher & Ocean Sci, Montreal, PQ, Canada

来源：

ATMOSPHERIC RESEARCH | 2007年 / 84卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Markov Chain simulation; freezing rain; icing events; force on cables; return periods;

D O I：

10.1016/j.atmosres.2006.08.002

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

A Markov Chain model based on hourly surface weather observations is used to estimate the return period of severe icing events. A severe icing event for this study was considered to be one for which the force due to wind on accumulated ice on a 25 mm diameter cable exceeds 10 N/m. Results of the analysis suggest that the return period of such an event is every 32 years on average for the Montreal area. Other simulations were conducted to estimate the return periods based on hypothetical future scenarios in which the probability of occurrence of freezing precipitation is higher. (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：242 / 249

页数：8

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