Collaborative Research: Quantitative Sediment Routing across Pristine Foreland Basins: Transport, Accumulation, and Floodplain-Channel Interactions within Three Fluvial...

合作研究：穿越原始前陆盆地的定量沉积物路径：三种河流扩散系统中的运输、积聚和洪积平原-河道相互作用charles A. Nittrouer和Rolf E. Aalto，华盛顿大学thomas Dunne，加州大学圣巴巴拉分校（Santa Barbara）：大型低地河流构成了水和沉积物跨越大陆的主要动脉，从山区源头输送到河口和海洋汇，提供了重要的栖息地、肥沃的农业用地、重要的水资源。还有数千万人的土地。河流沉积物也是运输碳、营养物质和污染物的主要载体。该项目将记录和模拟穿越玻利维亚和秘鲁原始前陆盆地的三条大河的沉积物运输、积聚和洪泛平原-河道相互作用机制。三种情况下，这些河流体现了在广泛的构造情景下低地河流的河流过程和速率的连续性，提供了一个理想的自然实验室。该项目还将继续发展洪泛区地质年代学和利用卫星图像对河流形态和迁移进行计算机分析的新方法。pi与法国科学家的合作代表了一种富有成效的新型国际伙伴关系。它们将产生对教育工作者、研究人员、数字图书馆和导航员有用的数据产品，以及用于大学教学的研究和结果。这项研究对所有对水和颗粒通量的形态、速率或力学、河道-洪泛平原相互作用以及砂层状河流扩散系统的沉积盆地动力学感兴趣的人都有好处。

Collaborative Research: Quantitative Sediment Routing across Pristine Foreland Basins: Transport, Accumulation, and Floodplain-Channel Interactions within Three Fluvial Dispersal SystemsCharles A. Nittrouer and Rolf E. Aalto, Washington University, EAR-0310339Thomas Dunne, University of California, Santa Barbara, EAR-0309688ABSTRACTLarge lowland rivers comprise the primary arteries through which water and sediment are conveyed across continents, from mountain sources to estuarine and marine sinks, providing critical habitat, fertile agricultural land, vital water resources, and land for tens of millions of people. River sediment also serves as the primary vehicle to transport carbon, nutrients, and pollutants. This project will document and model the mechanisms of sediment transport, accumulation, and floodplain-channel interaction within three large rivers traversing pristine foreland basins in Bolivia and Peru. In trio, these rivers exemplify the continuum of fluvial processes and rates for lowland rivers within a wide range of tectonic scenarios, providing an ideal natural laboratory. This project will also continue the development of new methods for floodplain geochronology and computer analysis of river morphology and migration using satellite imagery. PIs collaboration with French scientists represents a productive new international partnership. They will generate data products useful to educators, researchers, digital libraries, and navigators, as well as research and results to be used for teaching at the university level. The research benefits anyone interested in the full natural range of morphologies, rates, or mechanics of water and particulate flux, channel-floodplain interaction, and sedimentary basin dynamics for sand-bedded fluvial dispersal systems.