Data presented in the paper: “Modelling decadal salt marsh development: variability of the salt marsh edge under influence of waves and sediment availability”

Salt marshes can contribute to coastal protection, but the magnitude of the protection depends on the width of the marsh. The cross-shore width of the marsh is to a large extent determined by the delicate balance between seaward growth and landward retreat. The influence of the magnitude of daily occurring mild weather conditions and sediment availability on the variability of salt marsh width has not been systematically assessed. This paper investigates how the magnitude of homogeneous hydrodynamic forcing, combined with sediment availability, affects the biophysical development, and more specifically retreat and expansion of salt marshes. The dynamic extent of the salt marsh is assessed by modelling online-coupled hydrodynamics, morphodynamics and vegetation growth using the numerical Delft3D-Flexible Mesh model, coupled with a vegetation growth module in Python.

盐沼（salt marsh）可助力海岸防护，但其防护效能的强弱取决于盐沼自身的宽度。盐沼的垂直岸线方向宽度，在很大程度上由向海扩张与向陆退缩之间的微妙平衡所决定。目前，日常温和气象条件的强度与沉积物可获得性对盐沼宽度变化的影响尚未得到系统评估。本研究针对均匀水动力强迫（hydrodynamic forcing）的强度与沉积物可获得性共同作用下，如何影响盐沼的生物物理过程演化——具体而言即盐沼的退缩与扩张过程——展开了探讨。本研究采用数值模型Delft3D-Flexible Mesh，并耦合Python编写的植被生长模块，搭建在线耦合的水动力、地貌动力学（morphodynamics）与植被生长模型，以此对盐沼的动态分布范围进行评估。