US-Italy Cooperative Research: International Collaboration: Flow Hydraulics Along Step-Pool Channels

0216951 Wohl这个为期一年的奖项是针对美国和意大利在沿着阶梯池通道的水流水力学方面的合作，涉及科罗拉多州立大学的Ellen Wohl和意大利帕多瓦大学的Mario Lenzo。 该项目的目标是增加一个国际层面的一个正在进行的实验和现场研究阶梯池水力学。 该项目的目标是通过对意大利东部阿尔卑斯山5平方公里的Rio Cordon流域的研究，为科罗拉多落基山脉的East St. Louis Creek的测量提供比较数据。Rio Cordon流域经历周期性的阶梯破坏性洪水，然后是阶梯重建。美国研究人员将科罗拉多落基山脉阶梯池水力学的专业知识带到合作中，其中台阶-水池通道非常稳定，并且不允许在台阶重组期间直接测量水力参数。 意大利研究人员在Rio Cordon的丰富经验，包括十年的自动测量数据，除了对许多河道河段进行详细的实地调查，这些调查促进了对洪水引起的流量和泥沙输运增加后台阶-水池演变的研究。预计这次合作产生的数据将有助于更好地了解台阶-水池的演变。美国和意大利的研究小组以及在Rio Cordon盆地工作的其他研究人员都非常感兴趣。 这项研究的一个更广泛的影响在于访问不同的现场，研究方法和研究社区的两个美国博士。学生 这项研究的第二个影响将是提高对高梯度水道力学的理解和预测，这些水道向低地地区提供了不成比例的大量水和沉积物，这些地区比低地水道更容易受到气候变化和人类活动的影响。

0216951WohlThis one-year award for US-Italian collaboration in flow hydraulics along step-pool channels involves Ellen Wohl at Colorado State University and Mario Lenzo at the University of Padova in Italy. The objectives of the project are to add an international dimension to an ongoing experimental and field study of step-pool hydraulics. The goal of the project is to provide comparative data to measurements at East St. Louis Creek in the Colorado Rocky Mountains through a study of the Rio Cordon, a 5 km 2 watershed in the eastern Italian alps, which experiences periodic step-destabilizing floods followed by step re-formation.The US researchers bring to the collaboration expertise in the step-pool hydraulics in the Colorado Rockies, where the step-pool channels are very stable and do not permit direct measurement of hydraulic parameters during step-reorganization. This is complemented by the Italian researcher's extensive experience of the Rio Cordon, including ten years of automatically measured data, in addition to detailed field surveys of numerous channel reaches which have facilitated the study of step-pool evolution following flood-associated increases in discharge and sediment transport.The data resulting from this collaboration are expected to contribute to an improved understanding of step-pool hydraulics of great interest to both US and Italian groups, and to other researchers working in the Rio Cordon basin. One broader impact of this research lies in the access to diverse field sites, research methods, and research communities for two US Ph.D. students. A second impact of the research will be increased understanding and prediction of the mechanics of high-gradient channels, which supply a disproportionately large amount of water and sediment to lowland regions, which are at great risk than lowland channels for alterations associated with climate change and human activities.