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气象:2007,33(2):107-111
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2006年红花尔基樟子松林重大火灾发生的气象条件
(内蒙古呼论贝尔市气象局,海拉尔 021008)
Weather Conditions of the 16 May Great Fire Accident of Camphor Wood Forest in Honggolj in 2006
(The Hulun Buir Meteorological Office, Inner Mongolia, Hailar, 021008)
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投稿时间:2006-06-16    修订日期:2006-12-06
中文摘要: 利用极轨卫星遥感资料、气象资料,结合地理信息系统,对2006年5月16日红花尔基樟子松 林区重大火灾发生、蔓延的气象条件进行了综合分析,结果表明:(1) 高温少雨型严重干旱、 大风是林火发生和蔓延的重要背景。(2) 计算的森林可燃性的综合指标为395、423,表明 应是雷击起火,与实际情况相符。(3) 风力4级、气温5.9~6.5℃时,火场火势的蔓延速度为1 37.2hm2?h-1;风力5级、气温7.6~8.4℃时,火场火势的蔓延速度为173.2hm2?h-1。(4) 风力在 4~5级之间变化、气温在5.9~8.4℃之间变化时,火场火势的蔓延速度一般为137~173hm 2?h-1,可为以后的林火预报提供参考指标。
中文关键词: 森林火灾  蔓延速度  气象条件
Abstract:A serious fire accident event occurred and spread in camphor wood fore st in Honggolj, Hulun Buir, Inner Mongolia in May 16, 2006. The weather conditio ns of the event are analyzed synthetically based on the meteorological data, the meteorological satellite and GIS data. The result indicates that (1) the high t emperature and less rainfall with serious droughty and gale are the important co nditions for the event occurrence; (2) The calculated synthetic indexes of fores t combustibility are 395 and 423, that build a fire for lightning stroke accordi ng with practical situation; (3) The spread speed in fire field was 137.2hm2/h under force four wind with the temperature in the range of 5.9—6.5℃ ; and the speed was 173.2hm2/h under force five wind with temperature 7.6~8.4℃. (4) That speed is usually 137~173 hm2/h under the varying range of force 4 5 wind and 5.9~8.4℃ temperature.
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赵慧颖,孟军,宋卫士,王彦平,2007.2006年红花尔基樟子松林重大火灾发生的气象条件[J].气象,33(2):107-111.
Zhao Huiying,Meng Jun,Song Weishi,Wang Yanping,2007.Weather Conditions of the 16 May Great Fire Accident of Camphor Wood Forest in Honggolj in 2006[J].Meteor Mon,33(2):107-111.