Accurate flood mapping is crucial for enhancing community resilience in the face of flooding. Among the several factors that affect the flood extent, the effect of fluvial dynamics is not clearly recognized so far. Fluvial dynamics play an important role in shaping the patterns and magnitudes of water flow and sediment transport in riverine environments, that consequently affect flood extent. By conducting a scoping review, this paper aims to show how the river's hydrological processes and channel morphology impact floods and flood mapping. To do that, previous studies dealing with flood modeling have been explored to provide a comprehensive understanding of the interactions between fluvial dynamics and flood mapping outcomes. The results showed that morphodynamic variations and sediment transport impact flooding differently depending on local morphological conditions. Some studies indicate that these processes can increase the likelihood of flooding, potentially posing greater risks to nearby areas. Conversely, other research suggests that these morphodynamic variations may help reduce flood occurrences, signaling a nuanced relationship between river morphology and flood dynamics. Additionally, it was found that while bed-load movements significantly influence the synchronization of peak water surface elevation and peak flow times, suspended sediment concentration has minimal impact on the timing and shape of the hydrograph. The results emphasize the crucial role of integrating fluvial hydro-morphodynamics into flood mapping to enhance flood management in riverine environments, contributing to both increased resilience and broader sustainable development goals.

中文翻译：

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洪水建模和河流动力学：沉积物输送作用的范围界定审查

准确的洪水测绘对于增强社区应对洪水的抵御能力至关重要。在影响洪水范围的几个因素中，河流动力学的影响迄今尚未得到明确认识。河流动力学在塑造河流环境中水流和泥沙输送的模式和强度方面发挥着重要作用，从而影响洪水范围。通过进行范围审查，本文旨在展示河流的水文过程和河道形态如何影响洪水和洪水测绘。为此，我们对先前有关洪水建模的研究进行了探索，以全面了解河流动力学与洪水测绘结果之间的相互作用。结果表明，根据当地的形态条件，形态动力学变化和泥沙迁移对洪水的影响不同。一些研究表明，这些过程会增加发生洪水的可能性，可能给附近地区带来更大的风险。相反，其他研究表明，这些形态动力学变化可能有助于减少洪水的发生，表明河流形态和洪水动力学之间存在微妙的关系。此外，研究发现，虽然床载运动显着影响峰值水面高程和峰值流量时间的同步，但悬浮泥沙浓度对过程线的时间和形状影响最小。研究结果强调了将河流水文形态动力学纳入洪水测绘的关键作用，以加强河流环境的洪水管理，有助于提高抵御能力和实现更广泛的可持续发展目标。