The StreamCat Dataset: Accumulated Attributes for NHDPlusV2 (Version 2.1) Catchments for the Conterminous United States: State Soil Geographic Database (STATSGO) (KFFACT)

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  {
    "@type": "dcat:Distribution",
    "title": "StreamCat Dataset",
    "format": "API",
    "accessURL": "https://www.epa.gov/national-aquatic-resource-surveys/streamcat-dataset",
    "describedBy": "https://www.epa.gov/national-aquatic-resource-surveys/streamcat-metrics-and-definitions",
    "description": "StreamCat currently contains over 600 metrics that include local catchment (Cat), watershed (Ws), and special metrics. The special metrics were derived through modeling or by combining other StreamCat metrics. These variables include predicted water temperature, predicted biological condition, and the indexes of catchment and watershed integrity. See Geospatial Framework and Terms below for definitions of catchment and watershed as used with the StreamCat Dataset.

These metrics are available for ~2.65 million stream segments and their associated catchments across the conterminous US. StreamCat metrics represent both natural (e.g., soils and geology) and anthropogenic (e.g, urban areas and agriculture) landscape information.",
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  {
    "@type": "dcat:Distribution",
    "title": "State Soil Geographic Database (STATSGO) (KFFACT)",
    "format": "Comma-Separated Values (.csv)",
    "mediaType": "text/csv",
    "describedBy": "https://www.epa.gov/national-aquatic-resource-surveys/streamcat-metrics-and-definitions",
    "description": "This dataset represents the soil characteristic within individual, local NHDPlusV2 catchments and upstream, contributing watersheds based on the STATSGO landscape rasters. Attributes of the landscape layer were calculated for every local NHDPlusV2 catchment and accumulated to provide watershed-level metrics. This data set is derived from the STATSGO landscape rasters for the conterminous USA. Individual rasters (Landscape Layers) of depth to bedrock (rckdep), organic material (om), percent clay (clay), percent sand (sand), permeability (perm), soil erodibility (KFFACT/KFACT), and water table depth (wtdep) were used to calculate soil characteristics for each NHDPlusV2 catchment.  The soil characteristics were summarized to produce local catchment-level and watershed-level metrics as a continuous data type. The STATSGO data are distributed in two sets, STATSGO_Set1 and STATSGO_Set2, based on common NoData locations in each set of soil GIS layers.",
    "downloadURL": "https://www.epa.gov/national-aquatic-resource-surveys/streamcat-dataset#access-streamcat-data",
    "describedByType": "text/html"
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