• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Canadian Water Resources Journal >The 2009 flood event in the Red River Basin: Causes, assessment and damages
【24h】

The 2009 flood event in the Red River Basin: Causes, assessment and damages

机译：红河流域2009年洪水事件：成因，评估与损失

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 Red River once again experienced significant flooding in spring 2009 due to high antecedent soil moisture from the previous fall and a deep snowpack and deep frost penetration. The peak stage at Fargo, North Dakota, broke the previous record set in 1897, and the peak stage at Grand Forks, ND, was the third largest in its 126 years of record. The computed natural river crest in Winnipeg, Manitoba, was the second largest experienced since official records began in 1912, and the unregulated flow volume at Selkirk, Manitoba, was the highest on record since 1852. Beyond its statistical significance, the 2009 Red River flood was unique due to the magnitude and frequency of ice-related issues throughout the duration of the flood. Ice jams developed within Winnipeg and near the community of Lockport, and went through phases of formation and release that made it difficult to forecast water levels. The presence of ice also affected operation of the Floodway Inlet Control Structure, and a small ice jam even developed within the Floodway itself. Despite the magnitude of the flood event and the challenges associated with the ice conditions, the extensive level of flood protection along the Red River generally reduced the level of inconvenience and flood damage. The exception was the area downstream of the City of Selkirk that underwent flooding of a magnitude that had not been experienced for a century and a half. A large number of homes along this reach of the river were damaged beyond repair and were subject to a government buyout after the flood.
机译：2009年春季，由于前秋天的高土壤湿度以及深厚的积雪和深厚的霜冻渗透，红河再次遭受了严重的洪灾。北达科他州法戈（Fargo）的高峰期打破了1897年的记录，而北达科他州大福克斯（Grand Forks）的高峰期是其126年记录中的第三高峰。自1912年正式记录以来，位于马尼托巴省温尼伯的天然河顶是计算得出的第二大自然峰，马尼托巴省塞尔基克的无节制流量是自1852年以来的最高记录。除其统计意义外，2009年红河洪水由于在整个洪水期间与冰有关的问题的数量和频率是独一无二的。冰袋在温尼伯内部和洛克波特社区附近发展，并经历了形成和释放的阶段，这使得难以预测水位。冰的存在也影响了洪水道入口控制结构的运行，甚至在洪水道自身内部也形成了一个小的冰堵。尽管洪水事件的规模巨大，而且与冰雪条件有关，但红河沿岸的广泛防洪水平总体上减少了不便和洪水破坏的程度。唯一的例外是Selkirk市的下游地区遭受了一个半世纪以来从未经历过的洪灾。这条河沿岸的许多房屋遭到破坏，无法修复，并在洪水后被政府买断。

著录项

  • 来源
    《Canadian Water Resources Journal》 |2016年第2期|56-64|共9页
  • 作者

    Wazney Lucas; Clark Shawn P.;

  • 作者单位

    Univ Manitoba, Dept Civil Engn, Winnipeg, MB R3T 2N2, Canada;

    Univ Manitoba, Dept Civil Engn, Winnipeg, MB R3T 2N2, Canada;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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