Ecological Reach Identification Table For NHDPlusV1: Version 2.0
Using a combination of tabular and spatial data queries, we identified 129,773 flowlines in the hydrological framework of the National Hydrography Dataset Plus Version 1 (NHDPlusV1) that were created due to breaks in flowlines resulting from flowline intersection with quadrangle map boundaries. We found instances of this occurring in all 18 processing units of the NHDPlusV1 dataset. To aid in managing for this characteristic of the NHDPlus, we developed this EcoReach table (nhdplusv1_ecoreachv2.0.csv) that assigns all flowlines into units that are representative of ecological stream reaches. These "ecological stream reaches" may be defined by: stream origins, stream confluences, lake or reservoir inflows or outflows, and/or stream outflows (described in more detail in Wang et al. 2011). In addition, all flowlines within an ecological stream reach must have equivalent 'fcode' values (we focused on Stream/River: Hydrographic Category = Intermittent, Stream/River: Hydrographic Category = Perennial, and Artificial Path) and stream order values, as assigned by the NHDPlus. Using similar techniques as described in this metadata a similar table was developed for the NHDPlusV2 (nhdplusv2_ecoreachv2.0.csv; http://dx.doi.org/doi:10.5066/F7RN35WV). Following the processing steps described in the metadata, users can create similar EcoReach tables to group non-ecological flowlines that result from flowline intersection with quadrangle boundaries into defined ecological river reaches for other versions of the National Hydrography Datasets (e.g. NHD 1:24,000 in the conterminous United States, versions of the NHD in Hawaii, and Alaska) as well as in future versions of the NHDPlus.
Please use the following citation: Wieferich, D., Wesley M. Daniel, and Dana M. Infante (2014). Ecological Reach Identification Table For NHDPlusV1: Version 2.0. National Fish Habitat Partnership Data System. http://dx.doi.org/doi:10.5066/F7W95768
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Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "Dana Infante", "@type": "vcard:Contact", "hasEmail": "mailto:kyle.herreman@gmail.com" } |
| description | Using a combination of tabular and spatial data queries, we identified 129,773 flowlines in the hydrological framework of the National Hydrography Dataset Plus Version 1 (NHDPlusV1) that were created due to breaks in flowlines resulting from flowline intersection with quadrangle map boundaries. We found instances of this occurring in all 18 processing units of the NHDPlusV1 dataset. To aid in managing for this characteristic of the NHDPlus, we developed this EcoReach table (nhdplusv1_ecoreachv2.0.csv) that assigns all flowlines into units that are representative of ecological stream reaches. These "ecological stream reaches" may be defined by: stream origins, stream confluences, lake or reservoir inflows or outflows, and/or stream outflows (described in more detail in Wang et al. 2011). In addition, all flowlines within an ecological stream reach must have equivalent 'fcode' values (we focused on Stream/River: Hydrographic Category = Intermittent, Stream/River: Hydrographic Category = Perennial, and Artificial Path) and stream order values, as assigned by the NHDPlus. Using similar techniques as described in this metadata a similar table was developed for the NHDPlusV2 (nhdplusv2_ecoreachv2.0.csv; http://dx.doi.org/doi:10.5066/F7RN35WV). Following the processing steps described in the metadata, users can create similar EcoReach tables to group non-ecological flowlines that result from flowline intersection with quadrangle boundaries into defined ecological river reaches for other versions of the National Hydrography Datasets (e.g. NHD 1:24,000 in the conterminous United States, versions of the NHD in Hawaii, and Alaska) as well as in future versions of the NHDPlus. Please use the following citation: Wieferich, D., Wesley M. Daniel, and Dana M. Infante (2014). Ecological Reach Identification Table For NHDPlusV1: Version 2.0. National Fish Habitat Partnership Data System. http://dx.doi.org/doi:10.5066/F7W95768 |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.5066/F7W95768", "mediaType": "application/http", "description": "Landing page for access to the data" }, { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "XML", "mediaType": "text/xml", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.546a1950e4b04d4b7dbde8f1.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_546a1950e4b04d4b7dbde8f1 |
| keyword |
[ "Alabama", "Aquatic habitats", "Arizona", "Arkansas", "California", "Catchment areas", "Colorado", "Connecticut", "Conterminous United States", "Delaware", "District of Columbia", "Environmental conditions", "Florida", "Georgia", "Idaho", "Illinois", "Indiana", "Inland water environments", "Iowa", "Kansas", "Kentucky", "Landscape ecology", "Louisiana", "Lower 48 states", "Maine", "Maryland", "Massachusetts", "Michigan", "Minnesota", "Mississippi", "Missouri", "Montana", "Nebraska", "Nevada", "New Hampshire", "New Jersey", "New Mexico", "New York", "North Carolina", "North Dakota", "Ohio", "Oklahoma", "Oregon", "Pennsylvania", "Rhode Island", "River basins", "Rivers", "South Carolina", "South Dakota", "Streams", "Tennessee", "Texas", "USA", "USGS:546a1950e4b04d4b7dbde8f1", "Utah", "Virginia", "Washington", "West Virginia", "Wisconsin", "Wyoming" ] |
| modified | 2026-08-25T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -124.733577943, 24.9510364539, -66.9540023799, 49.3856201164 |
| theme |
[ "geospatial" ] |
| title | Ecological Reach Identification Table For NHDPlusV1: Version 2.0 |
