| 北京地区高速公路夏季道面高温灾害预报研究 |
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| 引用本文： | 孟春雷,刘长友.北京地区高速公路夏季道面高温灾害预报研究[J].防灾科技学院学报,2009,11(3):26-29. |
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| 作者姓名： | 孟春雷 刘长友 |
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| 作者单位： | 1. 中国气象局,北京城市气象研究所,北京,100089
2. 国家气候中心,北京,100081 |
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| 摘 要： | 高速公路经常会面临雨雪雾等恶劣天气的影响,导致出现诸如爆胎、路面积冰(积雪)等恶劣路况,并常常引发重大安全事故,因此准确预报高速路道面参数具有非常重要的意义.高速公路下垫面具有不透水、无植被覆盖等特性,仅采用气候模式而不考虑下垫面特性模拟与预测道面参数会产生较大误差.本文对CoLM陆面模式进行了改进,采用改进后的陆面模式与最新的区域预报模式BJ-RUC对盛夏北京地区几个高速公路观测站点的道面温度进行了预报.结果表明,相对于仅采用BJ-RUC模式进行预报,BJ-RUC与CoLM模式结合预报方法在正午前后道面温度非常高时与观测值符合得更好,误差由约10～20℃减小为约5～10℃.道面温度的准确预报可以更好的预防道面高温引发的交通安全事故的发生.
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| 关 键 词： | 高速公路 道面温度 预报 |
Summer Road Temperature Disaster Forecast of Expressway in Beijing |
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| Meng Chunlei,Liu Changyou.Summer Road Temperature Disaster Forecast of Expressway in Beijing[J].Journal of Institute of Disaster-prevention Science and Technology,2009,11(3):26-29. |
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| Authors: | Meng Chunlei Liu Changyou |
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| Institution: | Meng Chunlei1,Liu Changyou2(1.Institute of Urban Meteorology,China Meteorological Administration,Beijing 100089,2.China Climate Center,Beijing 100081) |
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| Abstract: | The expressways often encountered bad weather conditions such as heavy rain,snow and fog etc,and the road surface is often covered with deep snow or up to extremely high temperature.These can arouse severely serious security affairs.So,it is very meaningful to forecast road parameters accurately.Comparing to other land covers,expressways have many new characteristics such as no vegetation cover and water imperviousness etc.So,only using climate models to simulate and forecast road parameters can result in b... |
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| Keywords: | expressway road temperature forecast |
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