Historical Extreme Wind Velocity Estimate of Mengjin County and Analysis of Its Climatic Characteristic
Abstract：Using 2 min and 10 min average wind velocity data set from automatic weather stations for 2006-2008 of Mengjin county,fitting equations of extreme wind velocity is estimated.Based on the fitting equations,the 2 min regular wind velocity data of Mengjin county meteorological observation station for 1959-1982 and February 10 min mean wind velocity data from 1983 to 1992 are used to estimate extreme wind velocity.Thus,a long range extreme wind velocity sequence value of Mengjin county is established.An analysis of nearly 51 a extreme wind velocity and gale of Mengjin county for 1983-2009 shows that： the extreme wind velocity in 1980s is greatest;the yearly maximum of extreme wind velocity is 39.8 m/s,the minimum is 16.7 m/s,average value 23.1 m/s,yearly maximum of extreme wind velocity is mutant,and there is no obvious correlation between it and the annual average velocity;extreme wind velocity usually occurs in the spring,winter,rarely appears in the summer and autumn;prevailing gale directions are WNW and NW,which account for more than 80%;gale generally occurs during the day time,high occurrence time of gale is in the afternoon to the evening,and 14：00 is the one hour at which time gale most frequently occurs.
Keywords：estimatingextreme wind velocityclimatic characteristicprevailing wind directiondaily variation
Publication Date：2011-05-27
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 74-78 )