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汶川地震灾区泥石流群发雨量及预警等级划分

马超 何晓燕 胡凯衡

马超, 何晓燕, 胡凯衡. 汶川地震灾区泥石流群发雨量及预警等级划分[J]. 北京林业大学学报, 2015, 37(9): 37-44. doi: 10.13332/j.1000-1522.20150073
引用本文: 马超, 何晓燕, 胡凯衡. 汶川地震灾区泥石流群发雨量及预警等级划分[J]. 北京林业大学学报, 2015, 37(9): 37-44. doi: 10.13332/j.1000-1522.20150073
MA Chao, HE Xiao-yan, HU Kai-heng. Preliminary research on the rainfall threshold and warning grades of clustering debris flow in Wenchuan earthquake region,southwestern China.[J]. Journal of Beijing Forestry University, 2015, 37(9): 37-44. doi: 10.13332/j.1000-1522.20150073
Citation: MA Chao, HE Xiao-yan, HU Kai-heng. Preliminary research on the rainfall threshold and warning grades of clustering debris flow in Wenchuan earthquake region,southwestern China.[J]. Journal of Beijing Forestry University, 2015, 37(9): 37-44. doi: 10.13332/j.1000-1522.20150073

汶川地震灾区泥石流群发雨量及预警等级划分

doi: 10.13332/j.1000-1522.20150073
基金项目: 

“十二五”国家科技支撑计划课题((2012BAK10B04)、北京林业大学新进教师科研启动项目(BLX2014-12)。

详细信息
    作者简介:

    马超,博士。主要研究方向:山地灾害预警预报。Email:sanguoxumei@163.com 地址:100083北京市清华东路35号北京林业大学水土保持学院。

Preliminary research on the rainfall threshold and warning grades of clustering debris flow in Wenchuan earthquake region,southwestern China.

  • 摘要: 确定泥石流激发雨量阈值以及建立有效的预警预报等级是泥石流防灾减灾的重要手段之一。就2008—2013年汶川灾区群发性、局部地区暴发的泥石流雨量过程进行分析,分别得到北川、清平、都江堰、映秀4个地区泥石流暴发的“雨强-历时”阈值。其中,都江堰地区阈值较高,映秀最低;北川地区群发性泥石流阈值较局部地区要高,而其他3个地区不明显,部分地区群发性泥石流I-D值还低于局部地区泥石流I-D值。根据群发性和局部区域泥石流暴发的雨强-历时、前期降雨+实时降雨关系,初步建立了以上4个地区的预警预报等级,以期能为该区泥石流预警预报提供参考。

     

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出版历程
  • 收稿日期:  2015-03-16
  • 刊出日期:  2015-09-30

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