The National Elevation Dataset
The National Elevation Dataset
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DOI：
10.3133/fs14899
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发表时间：
2002
影响因子：
1.3
通讯作者：
D. Gesch;Michael J. Oimoen;Susan Greenlee;C. A. Nelson;M. J. Steuck;Dean J. Tyler
中科院分区：
文献类型：
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作者：
D. Gesch;Michael J. Oimoen;Susan Greenlee;C. A. Nelson;M. J. Steuck;Dean J. Tyler
国家高程数据集（NED）是一种栅格产品，以无缝格式提供覆盖整个美国及其岛屿领土的高程数据，具有一致的投影、分辨率、高程单位以及水平和垂直基准。它是美国地质调查局高程生产计划成熟的结果，其中基于四边形的数字高程模型的全国覆盖已经完成。给出了NED的规格和生产技术。NED实现了许多为国家空间数据基础设施设想的框架地理空间数据的概念，允许用户专注于分析而不是数据准备。NED为许多地理信息系统应用提供基本的高程数据，并定期维护和更新。美国地质勘探局正在通过互联网提供包括NED在内的几个无缝数据集。
The National Elevation Dataset (NED) is a raster product that provides elevation data coverage of the entire United States and its island territories in a seamless format with consistent projection, resolution, elevation units and horizontal and vertical datums. It is the result of the maturation of the U.S. Geological Survey elevation production program, in which national coverage of quadrangle-based digital elevation models has been completed. Specifications and production techniques for the NED are given. The NED fulfills many of the concepts of framework geospatial data as envisioned for the National Spatial Data Infrastructure, allowing users to focus on analysis rather than data preparation. The NED provides basic elevation data for many geographic information system applications and is maintained and updated regularly. The USGS is making several seamless datasets including NED available through the Internet.