Dissertation Research: Landscape Controls on Stream ChannelResponse to Floods in a 5th Order Watershed in the Western Oregon Cascades

论文研究：河道景观控制对俄勒冈州西部瀑布五级流域洪水的响应

• 批准号: 9711774
• 负责人: Julia Jones
• 金额: $ 1万
• 依托单位: Oregon State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-07-01 至 1999-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9711774&HistoricalAwards=false
• 关键词: Dissertation; Research; Landscape; Controls; Stream

John M Faustini Oregon State University The doctoral dissertation research will test dominant hypotheses about controls on mountain stream channel morphology using unique long term data sets from the H.J. Andrews LTER site. The hierarchical study design involves scaling up from the channel unit scale by characterizing channel morphology, relating channel response to fluvial processes, and interpreting channel morphology and response to floods at cross-section sites in relation to geomorphic context. The work will also evaluate geomorphic thresholds as predictors of the type and magnitude of channel response. Use will be made of an existing data base of over 1400 cross section measurements spanning the period from 1978 to 1996. Additional work will supplement this data base. The relationship between observed channel/valley floor responses and indices of landscape structure and condition will be explored using a GIS analysis. The results will provide an improved understanding of mountain stream channel dynamics which is critical in a theoretical sense but also for siting and design of engineered structures.

约翰·M·福斯蒂尼 (John M Faustini) 俄勒冈州立大学博士论文研究将使用来自 H.J. Andrews LTER 站点的独特长期数据集来测试有关控制山间溪流河道形态的主要假设。 分层研究设计涉及通过表征河道形态、将河道响应与河流过程联系起来以及解释河道形态和与地貌背景相关的横截面站点对洪水的响应来从河道单元尺度扩大。 这项工作还将评估地貌阈值作为通道响应类型和幅度的预测因子。 将利用包含 1978 年至 1996 年期间 1400 多个横截面测量数据的现有数据库。其他工作将补充该数据库。 将使用 GIS 分析来探讨观察到的河道/谷底响应与景观结构和条件指数之间的关系。 研究结果将加深对山间溪流河道动力学的理解，这在理论意义上至关重要，而且对于工程结构的选址和设计也至关重要。