Collaborative Research: Quantitative Sediment Routing across Pristine Foreland Basins

合作研究：穿越原始前陆盆地的定量沉积物路径：三个河流扩散系统内的输运、堆积和漫滩-河道相互作用。Nittrouer和Rolf E.阿尔托，华盛顿大学，邮编：10310339托马斯·邓恩，加州大学，圣巴巴拉，邮编：0309688摘要大型低地河流是水和沉积物从山区源头到河口和海洋汇跨越大陆的主要通道，为数千万人提供重要的栖息地、肥沃的农业用地、重要的水资源和土地。 河流沉积物也是运输碳、营养物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内的沉积物输运、积聚和漫滩-河道相互作用的机制。 在三重奏中，这些河流在广泛的构造情景中为低地河流提供了连续的河流过程和速率，提供了理想的天然实验室。 该项目还将继续开发洪泛区地质年代学的新方法，并利用卫星图像对河流形态和迁移进行计算机分析。 PI与法国科学家的合作代表了一种富有成效的新的国际伙伴关系。 它们将生成对教育工作者、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成果。 这项研究使任何对水和颗粒通量的形态、速率或力学、河道-洪泛区相互作用以及砂层河流扩散系统的沉积盆地动力学感兴趣的人受益。

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.