Water Boards of Changes IMWA

This dataset is based on (non-harmonised) data from all water boards in the Netherlands in accordance with the Information Model Water (IMWA). The dataset contains the following IMWA objects: — Connection construction — Finishing layer — Basic material — Soil layer — Filter Grinding layer — Flexible water resistance — Geotextile — DiagnosticProfile Line — Coffin dam — Reference point — Toe deposit — Toe constructionTransition construction — Top layer — Fill-out layer — Wall construction — Water barrier — Water barrier section The data is structured according to the Information Model Water (IMWA), part of the Aquo standard. More information can be found on the Aquo website. The data is delivered in Geopackage format in the RD-New coordinate system. The data comes from the individual water boards, but is delivered as a single national cover file via PDOK. Individual water boards offer their current data for this purpose via the ‘Data node water boards’ (GKW) of Het Waterschapshuis. All water boards are connected to this facility, but not yet every water board provides the complete set of data. For information on the contents of the data, please contact the relevant water board. This can be recognised by the water board code that is included as an attribute for each object in the dataset. For general information about the dataset and origin via the GKW, please contact Het Waterschapshuis at [e-mail].本数据集基于荷兰所有水务局的非统一标准化数据，遵循《水利信息模型（Information Model Water, IMWA）》构建。数据集包含以下IMWA对象： — 连接构筑物 — 饰面层 — 基础材料 — 土层 — 过滤研磨层 — 柔性防水层 — 土工织物（Geotextile） — 诊断剖面线 — 围堰（Coffin dam） — 基准点 — 趾部沉积层 — 趾部构筑物 — 过渡构筑物 — 表层 — 填充层 — 墙体构筑物 — 挡水构筑物 — 挡水构筑物段 本数据集遵循Aquo标准中的《水利信息模型（Information Model Water, IMWA）》进行结构化组织。更多相关信息可查阅Aquo官方网站。数据集以地理数据包（Geopackage）格式交付，采用RD-New坐标系。 数据源自各独立水务局，但通过PDOK以全国整合单文件数据集的形式统一交付。各水务局通过荷兰水务局之家（Het Waterschapshuis）的“水务局数据节点（Data node water boards, GKW）”提供其当前可用数据。所有水务局均已接入该节点，但并非所有机构均提供完整数据集。 如需了解数据具体内容，请联系对应水务局，可通过数据集中每个对象附带的水务局代码识别对应机构。如需了解本数据集及通过GKW获取数据源的相关通用信息，请联系荷兰水务局之家，邮箱地址为[e-mail]。