{ "culture": "en-US", "name": "USGS_NHD_Waterbodies", "guid": "212BCDB2-102C-4016-824F-EA57810857DC", "catalogPath": "", "snippet": "USGS NHD Waterbodies", "description": "

The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water bodies. Reaches are also defined on waterbodies and the approximate shorelines of the Great Lakes, the Atlantic and Pacific Oceans and the Gulf of Mexico. The NHD also incorporates the National Spatial Data Infrastructure framework criteria established by the Federal Geographic Data Committee.<\/p>


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Modifications by DCNR:<\/p>


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Field Additions:<\/span> \u201cHydro Category\u201d, \u201cHydro Subcategory\u201d<\/p>

Field Modifications:<\/span>
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\u201cHydro Category\u201d<\/span><\/p>

Copied \u2018FType\u2019 subtypes to \u2018HydroCat\u2019 field: \u2018Ice Mass\u2019, \u2018Lake/Pond\u2019, \u2018Playa\u2019, \u2018Reservoir\u2019, \u2018Swamp/Marsh\u2019<\/p>

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\u201cHydro Subcategory\u201d<\/span><\/p>

Copied and simplified \u2018FCode\u2019 subtypes to \u2018HydroSubCat\u2019 field: \u2018Aquaculture\u2019, \u2018Construction Material\u2019, \u2018Cooling Pond', \u2018Decorative Pool\u2019, \u2018Evaporator\u2019, \u2018Filtration Pond\u2019, \u2018Ice Mass\u2019, \u2018Lake/Pond\u2019, \u2018Perennial\u2019, \u2018Playa\u2019, \u2018Reservoir\u2019, \u2018Settling Pond\u2019, \u2018Sewage Treatment Pond\u2019, \u2018Swamp/Marsh\u2019, \u2018Treatment\u2019, \u2018Water Storage\u2019, \u2018Tailings Pond\u2019.<\/p>

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Turned off following fields:<\/span> \u2018Permanent_Identifier\u2019, \u2018FDate\u2019,\u2019Elevation\u2019, \u2018FType\u2019, \u2018FCode\u2019, \u2018AreaSqKm\u2019.<\/p><\/div>", "summary": "USGS NHD Waterbodies", "title": "USGS NHD Waterbodies", "tags": [ "Hydrography", "Lake", "Pond", "Canal", "Ditch", "Reservoir", "Spring", "Seep", "Swamp", "Marsh", "Artificial Path", "Reach Code" ], "type": "Map Service", "typeKeywords": [ "ArcGIS", "ArcGIS Server", "Data", "Map Service", "Service" ], "thumbnail": "thumbnail/thumbnail.png", "url": "", "extent": [ [ -121.419033644455, 34.2408538907294 ], [ -111.936189205957, 43.1162162163763 ] ], "minScale": 0, "maxScale": 1.7976931348623157E308, "spatialReference": "NAD_1983_UTM_Zone_11N", "accessInformation": "See dataset specific metadata.", "licenseInfo": "

None. Acknowledgment of the originating agencies would be appreciated in products derived from these data.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>", "portalUrl": "" }