...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Korean Forest Society >Characteristics of Heavy Rainfall forLandslide-triggering in 2011
【24h】

Characteristics of Heavy Rainfall forLandslide-triggering in 2011

机译：2011年滑坡触发的暴雨特征

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Rainfall is widely recognized as a major landslide-triggering factor. Most of the latest landslides that occurred in South Korea were caused by short-duration heavy rainfall. However, the relationship between rainfall characteristics and landslide occurrence is poorly understood. To examine the effect of rainfall on landslide occurrence, cumulative rainfall(mm) and rainfall intensity(mm/hr) of serial rain and antecedent rainfall(mm) were analyzed for 18 landslide events that occurred in the southernand central regions of South Korea in June and July 2011. It was found that all of these landslides occuned by heavy rainfall for one or three days, with the rainfall intensity exceeding 30 mm/hr or with a cumulative rainfall of 200 mm. These plotted data are beyond the landslide warning criteria of Korea Forest Service and the critical line of landslide occurrence for Gyeongnam Province. It was also found that the time to landslide occurrence after rainfall start(7) was shortened with the increasing average rainfall intensity(ARI), showing an exponential-decay curve, and this relation can be expressed as rT= 94.569-exp (-0.068,ARI)(R~2=0.64, p<0.001). The findings in this study may provide important evidences for the landslide forecasting guidance service of Korea Forest Service as well as essential data for the establishment of non-structural measures such as a warning and evacuation system in the face of sediment disasters.
机译：降雨被广泛认为是引发滑坡的主要因素。韩国最近发生的大多数滑坡都是由短时暴雨造成的。但是，对降雨特征与滑坡发生之间的关系了解甚少。为了检验降雨对滑坡发生的影响，分析了6月在韩国南部和中部地区发生的18次滑坡事件的累积降雨（mm）和连续降雨的降雨强度（mm / hr）和先前降雨（mm）。和2011年7月。发现所有这些滑坡都被强降雨持续了一到三天，降雨强度超过30毫米/小时或累积降雨200毫米。这些绘制的数据超出了韩国林务局的滑坡预警标准和庆南省滑坡发生的临界线。还发现随着平均降雨强度（ARI）的增加，降雨开始后滑坡发生的时间（7）缩短，显示出指数衰减曲线，该关系可以表示为rT = 94.569-exp（-0.068 ，ARI）（R〜2 = 0.64，p <0.001）。这项研究的发现可能为韩国林业局的滑坡预报指导服务提供重要证据，也为建立非结构性措施（如面对泥沙灾害的预警和疏散系统）提供必要的数据。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号