Improvement of socio-hydrological model to capture the dynamics of combined river and urban floods: a case study in Lower Kelani River Basin, Sri Lanka

IF 0.6 Q4 WATER RESOURCES
C. Perera, Shinichiro Nakamura
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引用次数: 3

Abstract

: Identifying the complex patterns of human-flood interac‐ tions over longer periods of time is very important in flood‐ plain management activities. The recently introduced socio-hydrology (SH) model contributes to capture these long-term behaviors of human-flood systems. This model can be utilized to explain the long-term dynamics of human-water interaction in floodplains. The current SH model exclu‐ sively illustrates the impact of river floods on floodplain communities. However, in some river basins, urban floods (due to high intensity rainfall) are dominant, whereas in other river basins, both river floods and urban floods influ‐ ence the dynamics of the system. It is often difficult to dis‐ tinguish the type of flood from actual local disaster data sets. In this study, we proposed an improvement to the existing SH model to capture the dynamics of both river floods and urban floods based on a case study from the Lower Kelani Basin, Sri Lanka, using simulated historical flood damages. The improved model was applied to capture flood damages in the target watershed, and the results fur‐ ther emphasize the importance of flood risk perception in flood damage reduction.
社会水文模型的改进,以捕捉河流和城市洪水的动态:斯里兰卡下克拉尼河流域的案例研究
在洪泛平原管理活动中,识别人类与洪水长期相互作用的复杂模式是非常重要的。最近引入的社会水文学(SH)模型有助于捕捉人类洪水系统的这些长期行为。该模型可用于解释洪泛区人-水相互作用的长期动态。目前的SH模型仅说明了河流洪水对洪泛区社区的影响。然而,在一些河流流域,城市洪水(由于高强度降雨)占主导地位,而在其他河流流域,河流洪水和城市洪水都影响系统的动态。通常很难从实际的当地灾害数据集中区分洪水的类型。本研究以斯里兰卡下克拉尼盆地为例,利用模拟历史洪水灾害,对现有SH模型进行了改进,以捕捉河流洪水和城市洪水的动态变化。将改进的模型应用于目标流域的洪水灾害,结果强调了洪水风险感知在减少洪水灾害中的重要性。
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来源期刊
CiteScore
1.90
自引率
18.20%
发文量
9
审稿时长
10 weeks
期刊介绍: Hydrological Research Letters (HRL) is an international and trans-disciplinary electronic online journal published jointly by Japan Society of Hydrology and Water Resources (JSHWR), Japanese Association of Groundwater Hydrology (JAGH), Japanese Association of Hydrological Sciences (JAHS), and Japanese Society of Physical Hydrology (JSPH), aiming at rapid exchange and outgoing of information in these fields. The purpose is to disseminate original research findings and develop debates on a wide range of investigations on hydrology and water resources to researchers, students and the public. It also publishes reviews of various fields on hydrology and water resources and other information of interest to scientists to encourage communication and utilization of the published results. The editors welcome contributions from authors throughout the world. The decision on acceptance of a submitted manuscript is made by the journal editors on the basis of suitability of subject matter to the scope of the journal, originality of the contribution, potential impacts on societies and scientific merit. Manuscripts submitted to HRL may cover all aspects of hydrology and water resources, including research on physical and biological sciences, engineering, and social and political sciences from the aspects of hydrology and water resources.
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