Hydrographic Datasets for Hydrologic Unit 02070004 - Conocoheague
The Chesapeake Bay Hyper-Resolution Hydrography Database is intended to facilitate analysis of the landscape in the Chesapeake Bay watershed through identification of headwater and other low-order streams or drainage features (e.g. ditches) that, to date, may be absent from existing hydrography data products. A full description of the methodology and accuracy assessment is provided in the accompanying report titled: "Hydrography Mapping Supporting Modeling and Targeted Conservation: Project Overview and Lessons Learned". The data products were developed by the Chesapeake Conservancy and the University of Maryland Baltimore County (UMBC) as part of a 6-year Cooperative Agreement between the Chesapeake Conservancy and the U.S. Environmental Protection Agency (EPA) and a separate Interagency Agreement between the USGS and the EPA to provide geospatial support to the Chesapeake Bay Program Office.
The data release is structured by eight-digit level hydrologic unit codes (HUC8) for the Chesapeake Bay watershed. Each HUC8 contains seven files (see below) and uses the following nomenclature: where HUC_ID and WATERSHED_NAME are placeholders for HUC8 ID(s), and local watershed name(s) (e.g., "Hydrographic Datasets for Hydrologic Unit 02050101 - Upper Susquehanna")
Data Release Structure:
Project Overview and Lessons Learned.pdf (Project overivew, methodology and accuracy assessment)
huc_[HUC_ID]_streamLine.zip (Stream Lines)
huc_[HUC_ID]_streamPoly.zip (Stream Polygons)
huc_[HUC_ID]_agDitches.zip (Agricultural Ditches)
huc_[HUC_ID]_rdDitches.zip (Road Ditches)
huc_[HUC_ID]_geomorphon1m.tif (Geomorphon 1-meter)
huc_[HUC_ID]_geomorphon10m.tif (Geomorphon 10-meter)
metadata_[HUC_ID].xml (metadata xml)
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "Chesapeake Conservancy", "@type": "vcard:Contact", "hasEmail": "mailto:cic@chesapeakeconservancy.org" } |
| description | The Chesapeake Bay Hyper-Resolution Hydrography Database is intended to facilitate analysis of the landscape in the Chesapeake Bay watershed through identification of headwater and other low-order streams or drainage features (e.g. ditches) that, to date, may be absent from existing hydrography data products. A full description of the methodology and accuracy assessment is provided in the accompanying report titled: "Hydrography Mapping Supporting Modeling and Targeted Conservation: Project Overview and Lessons Learned". The data products were developed by the Chesapeake Conservancy and the University of Maryland Baltimore County (UMBC) as part of a 6-year Cooperative Agreement between the Chesapeake Conservancy and the U.S. Environmental Protection Agency (EPA) and a separate Interagency Agreement between the USGS and the EPA to provide geospatial support to the Chesapeake Bay Program Office. The data release is structured by eight-digit level hydrologic unit codes (HUC8) for the Chesapeake Bay watershed. Each HUC8 contains seven files (see below) and uses the following nomenclature: where HUC_ID and WATERSHED_NAME are placeholders for HUC8 ID(s), and local watershed name(s) (e.g., "Hydrographic Datasets for Hydrologic Unit 02050101 - Upper Susquehanna") Data Release Structure: Project Overview and Lessons Learned.pdf (Project overivew, methodology and accuracy assessment) huc_[HUC_ID]_streamLine.zip (Stream Lines) huc_[HUC_ID]_streamPoly.zip (Stream Polygons) huc_[HUC_ID]_agDitches.zip (Agricultural Ditches) huc_[HUC_ID]_rdDitches.zip (Road Ditches) huc_[HUC_ID]_geomorphon1m.tif (Geomorphon 1-meter) huc_[HUC_ID]_geomorphon10m.tif (Geomorphon 10-meter) metadata_[HUC_ID].xml (metadata xml) |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.5066/P1GRAPEX", "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.679cfd20d34e89501cd2d6fb.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_679cfd20d34e89501cd2d6fb |
| keyword |
[ "02070004", "Chesapeake Bay Watershed", "Conocoheague", "Maryland", "Pennsylvania", "USGS:679cfd20d34e89501cd2d6fb", "Virginia", "West Virginia", "hydrology", "imageryBaseMapsEarthCover", "land surface characteristics", "river reaches", "river systems" ] |
| modified | 2025-05-23T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -78.4885123319454, 38.9908362321901, -77.33367033727791, 40.319449055685375 |
| theme |
[ "geospatial" ] |
| title | Hydrographic Datasets for Hydrologic Unit 02070004 - Conocoheague |
