Lakes have significant impacts on watershed hydrology. However, until now, no web-based tool has been available for watershed delineation considering lakes. In this study, we developed a tool to address this, enabling non-exports to delineate watersheds. First, a conceptual data model was proposed to represent related spatial units and their flow relationships, including rivers, lakes, river sub-basins, lake hillslopes, and flow paths. Subsequently, a web-based tool was designed and implemented, which enables users to select an area of interest and obtain watershed delineation results without the need for software installation or data preparation. This tool also supports for the customization of data and parameters. Two case studies, conducted at the Fushi Reservoir and Mahu Lake, demonstrated the system's usability. To our knowledge, this study presents the first web-based tool for watershed delineation that considers lakes, and it has great potential for applications in watershed modeling and management.

中文翻译：

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基于 Web 的流域划定工具，用于考虑湖泊和水库


湖泊对流域水文有重大影响。然而，到目前为止，还没有基于 Web 的工具可用于考虑湖泊的流域划定。在这项研究中，我们开发了一种工具来解决这个问题，使非出口能够划定流域。首先，提出了一个概念数据模型来表示相关的空间单元及其流动关系，包括河流、湖泊、河流子流域、湖泊山坡和水流路径。随后，设计并实施了基于 Web 的工具，使用户能够选择感兴趣的区域并获得流域划定结果，而无需安装软件或准备数据。该工具还支持自定义数据和参数。在 Fushi 水库和 Mahu 湖进行的两项案例研究证明了该系统的可用性。据我们所知，这项研究提出了第一个考虑湖泊的基于 Web 的流域划定工具，它在流域建模和管理方面具有巨大的应用潜力。