Nature-based solutions (NBS) can be used as an alternative or in conjunction with conventional coastal defense infrastructure for flood hazard mitigation. NBS can provide resilience and ancillary benefits, such as ecosystem enhancement. Oyster reefs, an example of NBS, act as natural breakwaters and provide ecological habitat for numerous species. The effectiveness of oyster reefs as NBS depends on their growth and survival and is influenced by the surrounding hydrodynamic conditions that affect food flux and sedimentation. A point-based oyster growth model was expanded and linked with a hydrodynamic model to simulate oyster and reef growth in the South Atlantic Bight. The highest live oyster layer heights increase with velocity until a depth-dependent velocity threshold is met, where sediment deposition begins to reduce growth. The potential for wave dissipation (total reef height) is depth-limited with a broader range of favorable locations than consideration for oyster layer height alone. The reef heights predicted across the model domain were shown to reduce significant wave height across a range of tropical storm intensities.

基于自然的解决方案（NBS）可以作为替代方案或与传统的海岸防御基础设施结合使用，以减轻洪水灾害。NBS 可以提供弹性和辅助效益，例如生态系统增强。牡蛎礁是 NBS 的一个例子，它充当天然防波堤，为众多物种提供生态栖息地。牡蛎礁作为 NBS 的有效性取决于它们的生长和生存，并受到影响食物通量和沉积的周围水动力条件的影响。基于点的牡蛎生长模型得到扩展，并与水动力模型相联系，以模拟南大西洋湾的牡蛎和珊瑚礁生长。最高的活牡蛎层高度随着速度的增加而增加，直到达到与深度相关的速度阈值，此时沉积物沉积开始减少生长。波浪消散的潜力（珊瑚礁总高度）受到深度限制，有利位置范围比单独考虑牡蛎层高度更广泛。模型域预测的珊瑚礁高度显示，在一系列热带风暴强度范围内，波高显着降低。