gis.GISOWNER.P5_LRSEGS_May24

Howard Weinberg Sarah K. Martucci Katharine J. Hopkins Jeff P. Raffensperger 2010 gis.GISOWNER.P5_LRSEGS_May24_10 vector digital data SIR 2005-5073 Baltimore, MD US Geological Survey Spatial data associated with the Scientific Investigations Report, 'Development of Land Segmentation, Stream-Reach Network, and Watersheds in Support of Hydrological Simulation Program-Fortran (HSPF) Modeling, Chesapeake Bay Watershed, and Adjacent Parts of Maryland, Delaware, and Virginia' By Sarah K. Martucci, Jennifer L. Krstolic, and Jeff P. Raffensperger (U.S. Geological Survey), and Katharine J. Hopkins (University of Maryland Center for Environmental Science) withheld This data set is an ArcGIS shapefile depicting the Chesapeake Bay Program's (CBP) Watershed Model Phase 5.3 Land-River segments in the Chesapeake Bay Watershed and adjacent states, which include New York, Pennsylvania, Maryland, the District of Columbia, 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 a total of 310 land segments. River segmentation was derived by editing River segments developed for the CBP's Phase 5.2 Watershed Model so that each River segment would drain into a single CBP Monitoring Segment. The Land segments and River segments were overlaid to create the Land_River segments. The data are projected to the UTM grid coordinate system - Zone 18 NAD83. 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. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the Environmental Protection Agency, the Chesapeake Bay Program or the U.S. Geological Survey. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in ARC/INFO format, this metadata file may include some ARC/INFO-specific terminology. Related websites: Chesapeake Bay Program Home: http://www.chesapeakebay.net/index.cfm Chesapeake Bay Program Modeling efforts: http://www.chesapeakebay.net/model.htm Chesapeake Bay Program work related to this GIS dataset: http://www.chesapeakebay.net/phase5.htm SPARROW Modeling and stream-reach network development http://md.water.usgs.gov/publications/wrir-99-4054/ Maryland Department of the Environment (MDE) http://www.mde.state.md.us/ Interstate Commission on the Potomac River Basin (ICPRB) http://www.potomacriver.org/ Virginia Department of Conservation and Recreation (DCR) http://www.dcr.state.va.us/ University of Maryland http://www.umd.edu/ 2010 publication date Complete As needed -84.636451 -74.145544 44.097085 35.612716 ISO19119 Topic Category inlandWaters environment farming biota none County Physiography Elevation Topography HSPF model Segmentation Political Boundaries TMDL none Chesapeake Bay Watershed DE MD NC NY PA TN VA WV DC 2010 none These data are to be used with the Chesapeake Bay Regional Watershed Model or projects related to this work. The phase 5 and VA vs. MD issues are as such. In order to avoid shoreline accuracy issues we extended our land and river segments out into the water. This was intended to associate wetlands and near-shore or shallow water data with adjacent land and river segments. It should NOT be used to assign water territory or state ownership of anything not directly associated with land. The FIPS borders in the water are for internal model processing only. GIS Analyst mailing and physical address

410 Severn Ave, Suite 112

Annapolis MD 21403 USA 1-800-968-7229 (1-800-YOUR-BAY) hweinber@chesapeakebay.net Howard Weinberg UMCES/Chesapeake Bay Program ESRI ArcCatalog 9.2.5.1450 Original data was in ArcInfo coverage format. Topology was built using either the Build command (01/26/2005). The data layer is "topologically clean" as tested with the ArcInfo Build command. Tolerances: Fuzzy = 0.974, Dangle = 0.00. Shapefiles have been compared to the original dataset. Data was converted to shapefile format 07/08/2005. Shapefiles were edited in ArcGIS in 2009. US Counties were re-selected to represent only those completely within, or touching the boundary of the study area. All counties within the states of Virgina, Maryland, Delaware, and Pennsylvania were included. Only a selected set of counties from New York, West Virginia, Tennessee, and North Carolina were included. The rest of the counties within US Counties dataset were omited. US Geological Survey, EROS Data Center 1999 National Elevation Dataset 1 raster digital data Sioux Falls, SD U.S. Geological Survey http://gisdata.usgs.net/ned/ http://ned.usgs.gov/ned/ned.html http://ned.usgs.gov 1999 publication date NED National Elevation Dataset (NED) was contoured and used to define areas of great relief. Counties with large differences in topography or geology were split so that county-scale rainfall data and other data could be distributed based on these differences. U.S. Department of Commerce Bureau of Census 1993 not specified 1:100,000-scale counties of the United States Edition 1.1 vector digital data U.S. Geological Survey, accessed November 16, 2004 http://water.usgs.gov/lookup/getspatial?county100 1993 publication date US Counties The Counties of the United States served as the base for the land segments. U.S. Geological Survey, 1980 Physiographic Provinces of Virginia: prov2m_ugs, 1:2,000,000 scale vector digital data Available through the Virginia Water USGS office 1980 ground condition Physiographic Provinces, VA The Physiographic Province boundaries in Virginia were used as a guide for changes in topography. Counties with large differences in topography or geology were split so that county-scale rainfall data and other data could be distributed based on these differences. U.S. Geological Survey 2000 Hydrogeomorphic Regions in the Chesapeake Bay Watershed 1 Open-File Report 00-424 Maryland U.S. Geological Survey Brakebill, J.W., and Kelley, S.K., 2000, Version 1: U.S. Geological Survey Open-File Report 00-424, accessed November 16, 2004 at http://water.usgs.gov/lookup/getspatial?hgmr 2000 publication date HGMR Hydrogeomorphic Regions were used to differentiate between areas of great relief and differences in geology. Counties with large differences in topography or geology were split so that county-scale rainfall data and other data could be distributed based on these differences. U.S. Census Bureau Geography Division 2004 not specified Significant changes to counties and county equivalent entities: 1970-present not specified vector digital data http://www.census.gov/geo/www/tiger/ctychng.html 2004 publication date Census county and city changes Used to update boundaries of incorporated cities to reflect land acquisition since the publication date of the county dataset. 1:100,000-scale counties of the United States projected to UTM zone 18, NAD83, and reselected for study area. Only counties within the Chesapeake Bay or adjacent land in NY, PA, MD, DE, WV, VA, NC, and TN were included. 2003 Polygons divided into 2-3 parts through on-screen editing, if determined necessary. Large differences in physography or topography were used to determine whether a polygon should be divided. Various sources used in each state. See source information for details. withheld withheld withheld 2003 Incorporated cities and counties were updated with Census 2000 boundaries. withheld 2003 Metadata imported. withheld 20051128 10443100 Dataset copied. withheld 20070518 15541300 Dataset copied. withheld 20070522 10191500 Dataset copied. withheld 20070608 15145100 Dataset copied. withheld 20080610 17120900 Dataset copied. withheld 20090709 11375700 Dataset copied. withheld 20090930 14420500 Dataset copied. withheld 20091001 13511600 Dataset copied. withheld 20091005 10073500 Dataset copied. withheld 20091005 11454800 Dataset copied. withheld 20091020 12044200 Dataset copied. withheld 20091102 10324000 Dataset copied. withheld 20091102 15505200 Dataset copied. withheld 20091102 16160000 Dataset copied. withheld 20091118 10521400 Dataset copied. withheld 20091118 13390300 Dataset copied. withheld 20091207 15562600 Dataset copied. withheld 20091209 09200100 Dataset copied. withheld 20100524 15044200 Dataset copied. withheld 20100524 15500700 Vector Simple FALSE 0 TRUE FALSE coordinate pair 0.002048 0.002048 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 Explicit elevation coordinate included with horizontal coordinates 1.000000 gis.GISOWNER.P5_RiverSEGS_May24_10 Polygon Attribute Table ESRI Feature Class 0 SHAPE Feature geometry. ESRI Coordinates defining the features. OBJECTID OID 4 0 0 Shape Feature geometry. ESRI Coordinates defining the features. REGION String 254 0 0 REGION Feature geometry. ESRI Coordinates defining the features. Shape Geometry 0 0 0 Shape_Length Shape_Length Double 8 0 0 Length of feature in internal units. Esri Positive real numbers that are automatically generated. Shape_Area Shape_Area Double 8 0 0 Area of feature in internal units squared. Esri Positive real numbers that are automatically generated. Chesapeake Bay Program Howard Weinberg GIS Analyst mailing address

410 Severn Ave, Suite112

Annapolis MD 21403 USA 1-800-968-7229 (1-800-YOUR-BAY) hweinber@chesapeakebay.net Downloadable Data Although this data set has been used by the EPA Chesapeake Bay Program, no warranty expressed or implied is made by the Bay Program as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the Chesapeake Bay Program in the use of this data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. ARCE Polygon coverage zipped 1276 KB Shapefile multiple parts with the same base name, and different extensions. zipped Shapefile named cb_land_shape.zip 1760 KB http://water.usgs.gov/GIS/dsdl/sir2005-5073_land_shape.zip SDTS Zipped SDTS format named cb_land_SDTS.zip 1100 KB http://water.usgs.gov/GIS/dsdl/sir2005-5073_land_sdts.zip none. This dataset is provided by EPA and the Chesapeake Bat Programas a public service 20100524 GIS Analyst mailing and physical address

410 Severn Ave, Suite 112

Annapolis MD 21403 USA 1-800-968-7229 (1-800-YOUR-BAY) hweinber@chesapeakebay.net Howard Weinberg UMCES/Chesapeake Bay Program FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time ESRI ArcCatalog 9.2.5.1450 gis.GISOWNER.P5_RiverSEGS_July10_08 -276779.000217 568397.18745 4882655.999119 3974957.250881 1 -84.636451 -74.145544 44.097085 35.612716 1 1 -84.636451 -74.145544 44.097085 35.612716 ISO 19115 Geographic Information - Metadata DIS_ESRI1.0 dataset 002 withheld Local Area Network 0.000 Feature Class File Geodatabase Feature Class 0.000 NAD_1983_UTM_Zone_18N EPSG 6.18.3(9.3.1.2) 0 20080710 Chesapeake_Bay_Watershed 002 -276778.989969 568397.187450 3974957.250882 4882655.999119 1 0.000 Projected GCS_WGS_1984 Linear Unit: Meter (1.000000) WGS_1984_Web_Mercator_Auxiliary_Sphere <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.3.0'><WKT>PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]</WKT><XOrigin>-20037700</XOrigin><YOrigin>-30241100</YOrigin><XYScale>148923141.92838538</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102100</WKID><LatestWKID>3857</LatestWKID></ProjectedCoordinateSystem> 20240911 14032700 20240911 14032700