Integrated Hydrological Units of the United Kingdom: Sections

This dataset is part of Integrated Hydrological Units (IHU) of the UK, a set of geographical reference units for hydrological purposes including river flow measurement and hydrometric data collection. A Section is the drainage area of a watercourse between two confluences. Only confluences of named watercourses were considered. Each Section carries a name constructed from names of the major river flowing through the Section, the major river flowing into the Section, and the major river into which the Section flows. Sections are spatially consistent with Groups: each Group is made up of one or more Section. Each Section is associated with one Catchment representing the full area upstream from the Section outlet. Identifiers and attributes have been calculated so that direct upstream and direct downstream IHU units can be selected. This layer currently covers Great Britain only as no dataset with river geometries and names with suitable detail is available for Northern Ireland. Full details about this dataset can be found at https://doi.org/10.5285/a6e37e39-9e10-4647-a110-12d902403095

本数据集属于英国综合水文单元（IHU）的一部分，该单元是一组用于水文目的的地理参考单元，包括河流流量测量和水利数据收集。‘分区’是指两条汇合点之间的水系排水区域。仅考虑了命名水系的汇合点。每个分区均以其穿过该分区的河流名称、流入该分区的河流名称以及该分区流入的河流名称构建名称。分区在空间上与组保持一致：每个组由一个或多个分区组成。每个分区均与一个流域相关联，代表从分区出口上游的全区域。已计算标识符和属性，以便可以直接选择上游和下游的IHU单元。当前该层仅覆盖大不列颠，因为在北爱尔兰没有提供具有河流几何形状和适当详细名称的数据库。关于本数据集的详细信息可在以下链接找到：https://doi.org/10.5285/a6e37e39-9e10-4647-a110-12d902403095