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SIR2005-5073_CBRWM_LandSegments

Dates

Release Date
2005-01-01
Time Period
2005
Publication Date

Citation

Krstolic, J.L., Martucci, S.K., Hopkins, K.J., and Raffensperger, J.P., 2005, SIR2005-5073_CBRWM_LandSegments: U.S. Geological Survey data release, https://doi.org/10.5066/P9FUVL4I.

Summary

These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This data set is an ArcGIS shapefile depicting land segments in the Chesapeake Bay Watershed and adjacent states of New York, Pennsylvania, Maryland, West Virginia, Delaware, Virginia, North Carolina, and Tennessee. Land segmentation was based on county boundaries represented by a 1:100,000-scale digital dataset. Fifty of the 254 counties and incorporated cities in the model region were divided on the basis of physiography and topography, producing [...]

Contacts

Attached Files

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sir2005-5073_land_e00.zip 1.26 MB application/zip
sir2005-5073_land_shape.zip 1.74 MB application/zip
sir2005-5073_land_sdts.zip 1.07 MB application/zip
SIR2005-5073_Cbland.jpg thumbnail 398.12 KB image/jpeg

Purpose

The U.S. Geological Survey, Chesapeake Bay Program, Interstate Commission on the Potomac River Basin, Maryland Department of the Environment, Virginia Department of Conservation and Recreation, and the University of Maryland are collaborating on the Chesapeake Bay Regional Watershed Model, using Hydrological Simulation Program - FORTRAN to simulate streamflow and concentrations and loads of nutrients and sediment. In order to establish a framework for model simulation, digital spatial datasets were created defining the discretization of the model region (including the Chesapeake Bay Watershed, as well as the adjacent parts of Maryland, Delaware, Virginia, Tennessee, and North Carolina outside the watershed) into land segments, a stream-reach network, and associated watersheds. The purpose of the Chesapeake Bay land coverage is to represent the county political boundaries and areas of differing physiography and topography in the study area. These land segments are based on an existing 1:100,000-scale digital dataset for all states in the study area. Land segments and watersheds were intersected to create land-watershed segments for the model. The land segments are to be used with the Chesapeake Bay Regional Watershed Model. Other uses are not suggested.
Land segments of the Chesapeake Bay Regional Watershed Model
Land segments of the Chesapeake Bay Regional Watershed Model

Map

Communities

  • Model Data Management Function (MDMF)

Tags

Provenance

These data were originally released on the Water Mission Area National Spatial Data Infrastructure Node and were migrated to sciencebase.gov in 2023. These data were released prior to the October 1, 2016 effective date for the USGS's policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9FUVL4I

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