USGS National Hydrography Dataset Plus High Resolution National Release 2
收藏DataCite Commons2025-02-10 更新2026-05-07 收录
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https://www.sciencebase.gov/catalog/item/679d39cbd34eb38981c9c7a5
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资源简介：
The National Hydrography Dataset Plus High Resolution (NHDPlus HR) National Release 2 (NR2) is an update to National Release 1 (NR1), which was published in 2022. NR2 contains updated data for hydrographic regions 01, 02, 06, 14, 15, and 16, and newly produced data for seven 8-digit Hydrologic Units in Alaska. Data for all other areas is included in NR2 but is unchanged from NR1.
NHDPlus HR is an integrated set of geospatial data layers, including the National Hydrography Dataset (NHD), National Watershed Boundary Dataset (WBD), and 3D Elevation Program Digital Elevation Model (3DEP DEM). The NHDPlus HR combines the NHD, 3DEP DEMs, and WBD to a data suite that includes the NHD stream network with linear referencing functionality, the WBD hydrologic units, elevation-derived catchment areas for each stream segment, value-added attributes (VAAs), and other features that enhance hydrologic data analysis and routing.
Additional documentation for the NHDPlus HR is available in a User Guide, available here: https://pubs.usgs.gov/of/2019/1096/ofr20191096.pdf
提供机构：
U.S. Geological Survey
创建时间：
2025-02-10
