{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Michael E. Wieczorek", "hasEmail": "mailto:mewieczo@usgs.gov"}, "description": "This tabular data set represents the estimated distribution of Phosphorus (P) in the soil A and C horizons, milligrams per kilogram compiled for two spatial components of the NHDPlus version 2.1 data suite (hereto referred as NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID.  The source data is from the publication, Distribution of Phosphorus (P) in the soil A and C horizons, Terziotti, 2019). Units are milligrams per kilogram. Reach catchment information characterizes data at the local scale. Reach catchments accumulated upstream through the river network characterizes cumulative upstream conditions.  Network-accumulated values are computed using two methods, 1) divergence-routed and 2) total cumulative drainage area. Both approaches use a modified routing database to navigate the NHDPlus reach network to aggregate (accumulate) the metrics derived from the reach catchment scale. (Schwarz and Wieczorek, 2016).", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/F7765D7V", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.58580f18e4b0e40e53c237a5.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_58580f18e4b0e40e53c237a5", "keyword": ["Catchment", "Inlandwaters", "NAWQA", "NHDPlus", "SPARROW", "USGS:58580f18e4b0e40e53c237a5", "geologic mapping units", "phosphorous", "soil horizon A", "soil horizon C"], "modified": "2026-03-26T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-127.9108, 23.2435, -65.3278, 51.6574", "theme": ["geospatial"], "title": "Select Soil Attributes: Distribution of Phosphorus in Soil Horizons A and C and Geologic Mapping Units"}