NCR Rivers and Streams (polygons)
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River and stream polygons for National Capital Region, National Park Service units. This is a subset of the data found in the NCR Hydrography feature layer. View NCR Rivers and Streams (polygons) on the NCR Open Data Hub The corresponding NPS DataStore on Integrated Resource Management Applications (IRMA) reference is Regional Datasets (Spatial Basedata), National Capital Region, National Park Service This dataset supports the implementation of National Park Service Management Policies. In addition, among other policies, laws, orders, etc., this dataset supports the Modernizing Access to Our Public Land Act or the MAPLand Act (Pub. L. 117–114, §1, Apr. 29, 2022, 136 Stat. 1175-1177) and the Geospatial Data Act (43 USC Ch. 46: GEOSPATIAL DATA).
美国国家公园管理局(National Park Service, NPS)所辖国家首都片区(National Capital Region, NCR)的河流与溪流面要素数据集。本数据集为国家首都片区水文要素图层(NCR Hydrography feature layer)的子集数据。可通过国家首都片区开放数据枢纽(NCR Open Data Hub)查询“国家首都片区河流与溪流(面要素)”数据集。该数据集对应的美国国家公园管理局综合资源管理应用(Integrated Resource Management Applications, IRMA)数据仓库引用条目为:美国国家公园管理局国家首都片区区域数据集(空间基础数据)[Regional Datasets (Spatial Basedata), National Capital Region, National Park Service]。本数据集可支撑美国国家公园管理局管理政策的落地实施。此外,本数据集还可支撑多项政策、法律与指令的落实,其中包括《公共土地访问现代化法案》(Modernizing Access to Our Public Land Act,简称MAPLand法案,公共法律第117–114号第1款,2022年4月29日颁布,136号法令汇编第1175-1177页)以及《地理空间数据法案》(Geospatial Data Act,美国法典第43篇第46章:地理空间数据)。



