青海東部地區雷電災害易損性分析與區劃
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青海省氣象局科技支撐計劃項目(201619)資助


Vulnerability and Regionalization of Lightning Disasters in Eastern Qinghai
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    摘要:

    利用青海東部地區10個氣象臺站1997—2012年的年平均雷暴日數,2008—2014年閃電定位數據和1997—2014年雷電災害資料,將雷暴日數、雷擊密度、綜合災度、生命易損模數和經濟易損模數作為雷電災害易損性評估指標,采用層次分析法確定指標的權重,建立了雷電災害易損性評估模型,依據氣象災害學分級統計法劃分出雷電災害易損性等級,形成了青海東部地區雷電災害易損性區劃圖。結果表明青海東部地區雷電災害易損性區域呈分散分布的特征,極高易損區在大通縣、化隆縣,次高易損區在湟中縣、互助縣,中易損區在省會城市西寧市、湟源縣,低易損區在樂都區、平安區、民和縣和循化縣。

    Abstract:

    By means of the annual average thunderstorm day data, lightning location data and lightning disaster data of 10 meteorological stations in the eastern Qinghai from 1997 to 2012, the lightning location data from 2008 to 2014, and lightning disaster data from 1997 to 2014, using the number of thunderstorm days, lightning density, comprehensive disaster degree, life vulnerability modulus, and economic vulnerability modulus as vulnerability assessment indicators of lightning disasters, the vulnerability assessment model of lightning disaster is established with the weights of indexes determined by analytic hierarchy process (AHP). According to the classification method of meteorological disaster statistics, the vulnerability grades of lightning disasters are classified, and the vulnerability zoning map of lightning disasters in the eastern Qinghai is given. The results show that the vulnerability areas of lightning disasters in the eastern Qinghai exhibit a characteristic of scattered distribution; the high vulnerability areas are in Datong County, Longhua County, the second high vulnerability areas in Huzhu County in Huangzhong County, the medium vulnerability areas of vulnerability in Xining and Huangyuan County, the low vulnerability areas in Ledu District, the safe areas in Minhe County and Xunhua County.

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王敏,孔尚成,王秀英.青海東部地區雷電災害易損性分析與區劃[J].氣象科技,2018,46(2):412~417

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  • 收稿日期:2017-04-18
  • 定稿日期:2017-10-19
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  • 在線發布日期: 2018-05-02
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