Attributes for NHDPlus Catchments (Version 1.1): Basin Characteristics, 2002

This data set represents basin characteristics, compiled for every catchment in NHDPlus for the conterminous United States. These characteristics are basin shape index, stream density, sinuosity, mean elevation, mean slope, and number of road-stream crossings. The source data sets are the U.S. Environmental Protection Agency's NHDPlus and the U.S. Census Bureau's TIGER/Line Files.

The NHDPlus Version 1.1 is an integrated suite of application-ready geospatial datasets that incorporates many of the best features of the National Hydrography Dataset (NHD) and the National Elevation Dataset (NED). The NHDPlus includes a stream network (based on the 1:100,00-scale NHD), improved networking, naming, and value-added attributes (VAAs). NHDPlus also includes elevation-derived catchments (drainage areas) produced using a drainage enforcement technique first widely used in New England, and thus referred to as "the New England Method." This technique involves "burning in" the 1:100,000-scale NHD and when available building "walls" using the National Watershed Boundary Dataset (WBD). The resulting modified digital elevation model (HydroDEM) is used to produce hydrologic derivatives that agree with the NHD and WBD. Over the past two years, an interdisciplinary team from the U.S. Geological Survey (USGS), and the U.S. Environmental Protection Agency (USEPA), and contractors, found that this method produces the best quality NHD catchments using an automated process (USEPA, 2007). The NHDPlus dataset is organized by 18 Production Units that cover the conterminous United States.

The NHDPlus version 1.1 data are grouped by the U.S. Geologic Survey's Major River Basins (MRBs, Crawford and others, 2006). MRB1, covering the New England and Mid-Atlantic River basins, contains NHDPlus Production Units 1 and 2. MRB2, covering the South Atlantic-Gulf and Tennessee River basins, contains NHDPlus Production Units 3 and 6. MRB3, covering the Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy River basins, contains NHDPlus Production Units 4, 5, 7 and 9.
MRB4, covering the Missouri River basins, contains NHDPlus Production Units 10-lower and 10-upper. MRB5, covering the Lower Mississippi, Arkansas-White-Red, and Texas-Gulf River basins, contains NHDPlus Production Units 8, 11 and 12. MRB6, covering the Rio Grande, Colorado and Great Basin River basins, contains NHDPlus Production Units 13, 14, 15 and 16. MRB7, covering the Pacific Northwest River basins, contains NHDPlus Production Unit 17. MRB8, covering California River basins, contains NHDPlus Production Unit 18.


CKAN dataset id 086db081-170b-4e38-838a-fe76f02743f2
상태 active
버전 2024-06-19
라이선스 notspecified
__category_tag_16e15f51-d96e-4051-9124-75665abdc6ff ["Water"]
accessLevel public
bureauCode {010:12}
harvest_object_id 8a66a98f-afec-4262-adc3-9f5ca112e0b9
harvest_source_id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
harvest_source_title DOI EDI
identifier USGS:2270e533-86a1-42a2-b2fa-1457bac2882f
metadata_type geospatial
modified 20201117
old-spatial -127.910792,23.243486,-65.327751,51.657387
publisher U.S. Geological Survey
publisher_hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 206e5c654b7c508336993b6f98355c3ae4b2c0f57dcabb49380d422abfdb3fdc
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-127.910792, 23.243486], [-127.910792, 51.657387], [-65.327751, 51.657387], [-65.327751, 23.243486], [-127.910792, 23.243486]]]}
theme {geospatial}
담당자 Michael E. Wieczorek
담당자 연락처
제공 기관 Department of the Interior
최초 수집 일시 2024-02-20T22:11:21…
최근 수집 일시 2024-07-01T14:59:08…

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