Morphodynamic Changes(形态动力学变化)研究综述
Morphodynamic Changes 形态动力学变化 - The relation between the main maritime drivers and the morphodynamic changes is analyzed, concluding that the morphodynamic evolution of the navigational channels is closely related not only to the wave energetic content, but largely to the wave directionality. [1] In this study, we investigated sediment dynamics and morphodynamic changes in the Mekong estuaries and coastal zone, using a well-calibrated Delft3D-4 model for a 10-years period simulation. [2] This paper describes the morphodynamic changes that took place along Kuala Terengganu coastline over daily periods during seasonal monsoons (onset of Northeast Monsoon in October 2014 and during Southwest Monsoon in May 2015). [3] To better understand the characteristics of morphodynamic changes in the whole study reach, variations in thalweg shifting and bankfull channel geometry were quantified using a reach-averaged approach, and the effects of upstream and downstream controls were investigated on channel geometry adjustments. [4] Morphodynamic changes have resulted in an overlap of short sedimentary records where stratigraphic signatures are linked either to phases of sediment transport and selection by waves and tidal currents (cross-bedding, foreset, and planar laminated sands, shell imbrication, massive beds) or to phases of sedimentary stasis when biological activity is predominant (algal mat and bioturbation). [5] Those alterations at the three inlets could be related to morphodynamic changes and morphological evolution and confirmed the strong interconnectivity between them to compensate the variations of their relative contributions to the total prism. [6] In previous works, these morphodynamic changes have been related to the alteration of the fundamental physical processes of braided rivers, due to anthropogenic changes in constraints and controls. [7]分析了主要海上驱动因素与形态动力学变化的关系，得出航道形态动力学演化不仅与波浪能含量密切相关，而且在很大程度上与波浪方向性相关。 [1] 在这项研究中，我们使用经过良好校准的 Delft3D-4 模型进行了为期 10 年的模拟，研究了湄公河河口和沿海地区的沉积物动力学和形态动力学变化。 [2] 本文描述了在季节性季风期间（2014 年 10 月东北季风和 2015 年 5 月西南季风期间），瓜拉丁加奴海岸线每天发生的形态动力学变化。 [3] 为了更好地了解整个研究河段中形态动力学变化的特征，使用河段平均方法量化了 thalweg 移位和满岸河道几何形状的变化，并研究了上游和下游控制对河道几何形状调整的影响。 [4] 形态动力学变化导致了短沉积记录的重叠，其中地层特征与沉积物运输和波浪和潮流选择的阶段（交叉层理、前缘和平面层状砂、贝壳叠瓦、块状层）或阶段相关联当生物活动占主导地位（藻垫和生物扰动）时的沉积停滞。 [5] 三个入口处的这些变化可能与形态动力学变化和形态演化有关，并证实了它们之间的强相互联系，以补偿它们对总棱镜的相对贡献的变化。 [6] 在以前的工作中，由于约束和控制的人为变化，这些形态动力学变化与辫状河流的基本物理过程的改变有关。 [7]