...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental earth sciences >Evaluation of geohazards in the Cape Girardeau area using LiDAR and GIS, Southeast Missouri, USA
【24h】

Evaluation of geohazards in the Cape Girardeau area using LiDAR and GIS, Southeast Missouri, USA

机译：利用LIDAR和GIS，美国东南密苏里州盖雷达德地区地球化园评价

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The New Madrid Seismic Zone (NMSZ) has historically recorded some of the largest intensity earthquakes in North America, including significant earth movements that resulted in about 2000 felt earthquakes during 1811-1812. The region continues to experience mass wasting due to earth movements. The aim of this study is to understand the influence of geologic variables on mass wasting processes in the greater Cape Girardeau area, which forms the commercial center of Missouri's fertile "Bootheel" region. Earth movement susceptibility was evaluated in Cape Girardeau and Bollinger counties and portions of Stoddard and Scott counties by mapping potential landslide features on topographic maps, field verification of such features, and geospatial analysis of recent LiDAR imagery. In order to evaluate the changes in surface morphology, slope inclination, hillshade aspect, hydrology, lithology, faults, precipitation, seismicity, sinkholes, and geohydrology were considered. Geographically weighted analysis of the geomorphologic variables identified zones of relative risk. In addition, data were evaluated for oil and gas pipelines, bridges, utilities, and open pit mines associated with mass wasting on public and economic infrastructure. The results suggest that anthropogenic changes commonly associated with urban development impact land use, runoff, infiltration, and slope failures, while sustained precipitation and seismic ground shaking tend to trigger landslides. The scale of mass wasting in the study area was robust, varying from as small as one-half hectare to as much as 67 km(2). The vulnerability of the population in susceptible areas tends to increase at the lower elevations and on alluvial flood plains. Thus, hazard susceptibility evaluation can be useful in both community planning as well as emergency preparedness.
机译：新的马德里地震区（NMSZ）历史记录了北美的一些最大的强度地震，包括在1811年至1812年期间大约2000次毛毡地震导致了大量地球运动。由于地球运动，该地区仍在继续遭受大众浪费。本研究的目的是了解地质变量对大普拉德地区大众浪费过程的影响，该过程形成了密苏里州肥沃的“Bootheel”地区的商业中心。通过在地形图上的潜在滑坡特征，在地形图的潜在滑坡特征，这些特征的现场验证以及最近的LIDAR图像的地理空间分析，在Cape Girardeau和Bollinger县和斯托达德和斯科特县的一部分评估了地球运动易感性。为了评估表面形态的变化，坡度倾角，山丘，沉淀，水文，岩性，故障，降水，地震性，污水孔和地疗程。地貌加权分析对几何变量确定了相对风险的区域。此外，在公共和经济基础设施上对大规模浪费有关的石油和天然气管道，桥梁，公用事业和露天矿进行评估数据。结果表明，与城市发展影响土地利用，径流，渗透和斜坡故障通常相关的人为变化，而持续降水和地震地面震动倾向于引发山体滑坡。研究区域的大规模浪费规模稳健，从小到一半公顷到多达67公里（2）。易感地区群体的脆弱性趋于在较低的升高和冲积洪水中增加。因此，危险易感性评估在社区规划和应急准备中都可有用。

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