Geomorphological Processes, Scale and the Evolution of Fluvial Landforms

地貌过程、规模和河流地貌的演化

• 批准号: 9318977
• 负责人: David Tarboton
• 金额: $ 4.42万
• 依托单位: Utah State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-04-15 至 1995-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9318977&HistoricalAwards=false
• 关键词: Geomorphological; Processes; Scale; Evolution; Fluvial

9318977 Tarboton Rainfall, runoff, erosion, mass movement, and sediment transport are the physical processes that sculpture and form the landscape. Geomorphological landforms are the signature of the action of hydrologic processes on the landscape. Fluvial landscapes have a structural regularity that has been quantified by Horton's and numerous other scaling laws. The ubiquity and explanatory strength of these empirical relationships, even in diverse geologic and climatic settings, suggests a deep universality and regularity in fluvial landorms that goes beyond the details of the particular processes involved. The objective is a quantitative understanding of the relationship between processes and form in landscapes at scales ranging from single hillslopes to complete river basins and investigate the relationship between scaling properties and the general form of geomorphic processes. This relationship will be investigated using numerical modeling together with careful analysis of field data where geomorphological processes have been quantified.

9318977 Tarboton降雨，径流，侵蚀，大规模运动和沉积物运输是雕塑并形成景观的物理过程。 地貌地形是水文过程对景观作用的签名。 河流景观具有结构性规律性，已通过霍顿和许多其他比例定律来量化。 这些经验关系的无处不在和解释性的强度，即使在各种地质和气候环境中，也表明了河流倾向的深厚普遍性和规律性，超出了所涉及的特定过程的细节。 目的是对过程与形式之间的关系的定量理解，范围从单山坡到完成河流盆地，并研究缩放特性与地貌过程的一般形式之间的关系。 将使用数值建模以及对现场数据进行量化的现场数据进行仔细分析来研究这种关系。