• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of the American Water Resources Association >Development of Regional Curves for Hydrologic Landscape Regions (HLR) in the Contiguous United States
【24h】

Development of Regional Curves for Hydrologic Landscape Regions (HLR) in the Contiguous United States

机译：连续美国水文景观区（HLR）区域曲线的开发

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

Regional curves relate drainage area to the bankfull channel characteristics discharge, cross-sectional area, width, and mean depth. These curves are used for a variety of purposes, including aiding in the field identification of bankfull elevation and in the natural channel design process. When developing regional curves, the degree to which landform, geology, climate, and vegetation influence stream systems within a single physiographic province may not be fully considered. This study examined the use of the U.S. Geological Survey's Hydrologic Landscape Regions (HLR), as well as data from 2,856 independent sites throughout the contiguous United States (U.S.), to develop a set of regional curves (bankfull discharge, cross-sectional area, width, and mean depth) for (1) the contiguous U.S., (2) each of the 20 HLRs, (3) each of the eight physiographic divisions, (4) 22 of the 25 physiographic provinces, and (5) individual HLRs within the physiographic provinces. These regional curves were then compared to each other, as well as those from the literature. Regional curves developed for individual HLRs, physiographic divisions, and physiographic provinces tended to outperform the contiguous U.S. indicating increased stratification was beneficial. Further stratifying physiographic provinces by HLR markedly improved regional curve reliability. Use of HLR as a basis of regional curve development, rather than physiographic region alone, may allow for the development of more robust regional curves.
机译：区域曲线将流域面积与河岸特征流量，横截面积，宽度和平均深度联系起来。这些曲线可用于多种目的，包括帮助堤岸高程现场识别和自然通道设计过程。在绘制区域曲线时，可能不会完全考虑地形，地质，气候和植被对单个地理省内河流系统的影响程度。这项研究调查了美国地质调查局水文景观区（HLR）的使用，以及整个美国（US）2856个独立站点的数据，以绘制出一套区域曲线（河岸流量，断面面积， （1）连续的美国，（2）20个HLR中的每个，（3）八个生理学部门中的每个，（4）25个生理学省中的22个以及（5）内的单个HLR地理省份。然后将这些区域曲线以及文献中的区域曲线进行比较。针对单个HLR，地理分区和地理省份制定的区域曲线往往胜过连续的美国，这表明分层的增加是有益的。通过HLR对地理省份进行进一步分层显着提高了区域曲线的可靠性。使用HLR作为区域曲线发展的基础，而不是仅根据生理区域，可以允许开发更可靠的区域曲线。

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