Presidential Young Investigator Award: Coastal Processes in Large Rivers

该奖项通过国家科学基金会的总统青年研究员计划为伯纳德·鲍尔博士提供支持。该计划的目标是为美国一些最杰出、最有前途的年轻科学和工程教员提供研究支持。这些奖项旨在提高美国学术机构响应学术和工业研究和教学对高素质科学家和工程师的需求的能力。这一奖项将允许鲍尔博士继续他在地貌过程中的研究，特别是流体塑造地貌的机制。在调整最初在沿海研究中开发的用于河流分析的模型和分析技术方面，这位调查员一直是领先者。他将通过详细探索河流内部波状流体振荡对河岸的影响来继续这项综合研究，扩展目前构成大多数河道形态模型基础的单向流动模型。这项研究将包括一系列实验和经验分析，重点是将海滩平衡模型应用于河道侵蚀和沉积，其中包括波高、陡度、偏斜度和轨道速度的测量。对电磁海流计和潜水压力传感器收集的数据进行时间序列分析，将更准确地估计振荡运动和单向流动对河道侵蚀和淤积的相对重要性。除了加深对流体动力学和河道形态的一般了解外，这项研究还将为分析堤坝或其他水流控制结构调节水流时不同泄流方式的不同影响提供实用信息。

This award provides support for Dr. Bernard Bauer through the National Science Foundation's Presidential Young Investigator Program. The objective of this program is to provide research support for some of the nation's most outstanding and promising young science and engineering faculty members. The awards are intended to improve the capability of U.S. academic institutions to respond to the demand for highly qualified scientists and engineers for academic and industrial research and teaching. This award will allow Dr. Bauer to continue his research in geomorphic processes, especially the mechanisms by which fluids sculpt landforms. The investigator has been a leader in adapting models and analytic techniques originally developed in coastal studies for use in analyses of streams. He will continue this synthetic research through detailed explorations of the influence of wave-like fluid oscillations within streams on stream banks, expanding on the unidirectional flow models that currently form the basis for most models of channel morphology. This research will include a series of experimental and empirical analyses that focus on application to stream-channel erosion and deposition of beach-equilibrium models, which include measurements of wave height, steepness, skewness, and orbital velocity. Time-series analyses of data gathered by electromagnetic current meters and submersible pressure sensors will provide more accurate estimates of the relative significance of oscillatory motions and unidirectional flows on stream-channel erosion and deposition. In addition to enhancing general understandings of fluid dynamics and channel morphology, this research will provide practical information for analyses of the differential impacts of alternate discharge regimes when stream flow is regulated by dams or other flow-control structures.