Modeling Estuary-Shelf Coupled Subtidal Circulation

这项研究将继续对密度和风驱动的河口-陆架潮下频率环流耦合的模拟研究。提出了五个具体目标：1.与在Meccas计划期间获得的切萨皮克羽流观测结果相比较，对先前工作中发展的羽流模式进行批判性评估；2.开发简化版本的河口羽流模型，可用于模拟周围的内陆架水域中的羽流，这些水域的动力比假定的均匀沿岸流复杂得多；3.改进了现有的稳态羽流模型，考虑了羽流下垂直混合引起的界面摩擦、质量卷吸和浮力损失的影响：4.发展了主要河口近海密度和风力驱动的陆架环流诊断模式；以及，5.利用第二个河口羽流模式的内陆架环流描述的结果，描述了内陆架上的河口羽流动力学，包括密度和风生部分的所有主要物理机制。

This study will continue modeling studies of coupled estuary-shelf subtidal frequency circulation, both density-and wind driven. Five particular objectives are posed: 1. A critical evaluation of plume models developed during previous work in comparison with observations of the Chesapeake plume obtained during the MECCAS program; 2. development of a simplified version of the estuary plume model that can be used to model plumes in ambient, inner shelf waters that have more complicated dynamics than the uniform longshore current how assumed; 3. Improvement of the existing steady-state plume model to include the effects of interfacial friction, mass entrainment, and buoyancy loss by vertical mixing beneath the plume; 4. Development of diagnostic models of density- and wind driven shelf circulation offshore of a major estuary; and, 5. Use of the results of the fourth for the inner shelf circulation description of estuary plume model of the second to provide a description of estuary plume dynamics on the inner continental shelf to include all major physical mechanisms for both the density and the wind-driven parts.