Sean M. Quigley 2003 vector digital data Water-Resources Investigations Report USGS WRIR 03-4164 Columbus, Ohio U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?streamclp This vector coverage of hydrography centerlines was derived from the National Hydrography Dataset (NHD), and encompasses all of Ohio and portions of Indiana, Michigan, Kentucky, West Virginia, Pennsylvania, and New York. This coverage is comprised of 105 Catalog Units (CUs) obtained from http://nhd.usgs.gov/. Each CU approximately represents a single 8-digit Hydrologic Unit Code (HUC). This coverage was used to determine parameters required to use regression equations presented by Koltun (2003). This dataset can be used to determine the location and extent of hydrography based solely on the centerlines of hydrographic features in Ohio and portions of Indiana, Michigan, Kentucky, West Virginia, Pennsylvania, and New York. Area and boundary features of lakes, ponds, etc., cannot be determined from this dataset. This dataset was created to derive data related to drainage density and main-channel length for selected basins inside and outside of Ohio. The scale of the dataset is 1:100,000 and should not be used with data at scales greater than this. Koltun, G.F., 2003, Techniques for Estimating Flood-Peak Discharges of Rural, Unregulated Streams in Ohio: U.S. Geological Survey Water-Resources Investigations Report 03-4164 The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that comprise the nations surface water drainage system. More information is available at http://nhd.usgs.gov/. 20010107 unknown ground condition Complete As required -85.45514928 -79.44478482 42.30393709 37.7339405 NONE Hydrography Centerlines NHD Streams Vector Drainage inlandWaters NONE Ohio Indiana Michigan Kentucky West Virginia Pennsylvania New York NONE This coverage is intended for use with regression equations given in Koltun (2003). Suitability for other uses has not been determined. Sean M. Quigley United States Geological Survey, WRD Computer Information Specialist physical address

6480 Doubletree Avenue

Columbus OH 43229 USA 1-888-275-8747 614-430-7700 squigley@usgs.gov Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 3; ESRI ArcCatalog 8.3.0.800 The accuracy of the attributes of the Digital Line Graph data is estimated to be 98.5 percent. One or more of the following methods were used to test attribute accuracy: - manual comparison of the source with hardcopy plots. - symbolized display of the digital line graph on an interactive computer graphic system. - Selected attributes that could not be visually verified on plots or on screen were interactively queried and verified on screen. In addition, software validated feature types and characteristics against a master set of types and characteristics, checked that combinations of types and characteristics were valid, and that types and characteristics were valid for the delineation of the feature. Feature types, characteristics, and other attributes conform to the Standards for National Hydrography Dataset (USGS, 1999) as of the date they were loaded into the database. All names on reaches were validated against a March 1999 extract from the Geographic Names Information System. 98.5 The accuracy of the attributes of the DLG data is estimated to be 98.5 percent. Arc-Node topology is present. Points, nodes, lines, and areas conform to topological rules. This dataset was derived from the ROUTE.RCH coverage created from the Append_nhd AML. No other information or coverages from the NHD workspaces were used. The accuracy of the attributes of the Digital Line Graph data is estimated to be 98.5 percent. Not Applicable Identified and downloaded 104 CUs from the National Hydrography Dataset web server at: http://edcw2ks56.cr.usgs.gov/Website/nhdserver/viewer.htm. 20020304 Sean M. Quigley United States Geological Survey, WRD Computer Information Specialist physical address

6480 Doubletree Avenue

Columbus OH 43229 USA 1-888-275-8747 (614) 430-7700 squigley@usgs.gov All 104 CU workspaces were appended into a single Arc Info workspace using the Append_nhd211 AML obtained from http://nhd.usgs.gov/tools.html. 20020306 Sean M. Quigley United States Geological Survey, WRD Computer Information Specialist physical address

6480 Doubletree Avenue

Columbus OH 43229 USA 1-888-275-8747 (614) 430-7700 squigley@usgs.gov Single coverage of 104 CUs was opened in Arc View for verification, and to derive centerline data with correct attribute information. The Route.rch coverage containing centerlines and appropriate attribute information was converted to a shapefile named STREAMS. Shapefile STREAMS was then converted back to an Arc Info coverage named STREAMS using the SHAPEARC command. 20020306 Sean M. Quigley United States Geological Survey, WRD Computer Information Specialist physical address

6480 Doubletree Avenue

Columbus OH 43229 USA 1-888-275-8747 (614) 430-7700 squigley@usgs.gov Coverage STREAMS was clipped against a polygon coverage representing the study area. The resulting coverage was named STREAMS2. The resulting coverage was then projected to the desired projection using the following procedure: Project: input Project: projection geographic Project: units dd Project: datum nad83 Project: parameters Project: output Project: projection utm Project: units meters Project: zone 17 Project: datum nad83 Project: parameters Project: end The resulting coverage was named STREAMCLP 20020306 Sean M. Quigley United States Geological Survey, WRD Computer Information Specialist physical address

6480 Doubletree Avenue

Columbus OH 43229 USA 1-888-275-8747 (614) 430-7700 squigley@usgs.gov Identified a CU (02050201) that was required but was not originally one of the 104 obtained from the NHD web server. This missing CU was downloaded and all of the above process steps were re-executed for al 105 CUs. 20020901 Sean M. Quigley United States Geological Survey, WRD Computer Information Specialist physical address

6480 Doubletree Avenue

Columbus OH 43229 USA 1-888-275-8747 (614) 430-7700 squigley@usgs.gov Metadata imported. C:\DOCUME~1\squigley\LOCALS~1\Temp\xml6.tmp 20030507 Appended CU 05030104 that was originally missing from the dataset. This was done using the same process described above. Clipped the resulting coverage with a redefined study area boundary. 20030507 Vector String 65008 GT-polygon composed of chains 1119 Universal Transverse Mercator 17 0.999600 -81.000000 0.000000 500000.000000 0.000000 coordinate pair 0.000239 0.000239 meters North American Datum of 1983 GRS1980 6378137.0 298.257 streamclp.aat Arc Attribute Table ESRI ARC/INFO 8.0.2 FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. 98.5 The accuracy of the attributes of the DLG is estimated to be 98.5 percent Unknown Shape Feature geometry. ESRI Coordinates defining the features. 98.5 The accuracy of the attributes of the DLG is estimated to be 98.5 percent Unknown LENGTH Length of feature in internal units. ESRI Positive real numbers that are automatically generated. 98.5 The accuracy of the attributes of the DLG is estimated to be 98.5 percent Unknown STREAMCLP# Internal feature number. ESRI variable Sequential unique whole numbers that are automatically generated. 98.5 The accuracy of the attributes of the DLG is estimated to be 98.5 percent Unknown STREAMCLP-ID User-defined feature number. ESRI variable LEVEL Numeric code that identifies each main path of water flow through a drainage network. The National Hydrography Dataset: Concepts and Contents. Feb. 2000 1 Drainage terminates in the ocean or a Great Lake The National Hydrography Dataset: Concepts and Contents. Feb. 2002 2 Drainage terminates in a level 1 water body The National Hydrography Dataset: Concepts and Contents. Feb. 2002 3 Drainage terminates in a level 2 water body The National Hydrography Dataset: Concepts and Contents. Feb. 2002 4 Drainage terminates in a level 3 water body The National Hydrography Dataset: Concepts and Contents. Feb. 2002 5 Drainage terminates in a level 4 water body The National Hydrography Dataset: Concepts and Contents. Feb. 2002 6 Drainage terminates in a level 5 water body The National Hydrography Dataset: Concepts and Contents. Feb. 2002 7 Drainage terminates in a level 6 water body The National Hydrography Dataset: Concepts and Contents. Feb. 2002 98.5 The accuracy of the attributes of the DLG is estimated to be 98.5 percent NAME The GNIS name for a given reach. U.S. Department of the Interior. U.S. Geological Survey. Standards for National Hydrography Dataset. Jul. 1999 variable The stream level is a numeric code that identifies each main path of water flow through a drainage network. It is the only attribute (besides arc length and presence of nodes) pertinent to the purpose of this dataset. The lowest value for stream level is assigned to a transport reach at the end of a flow and to upstream transport reaches that trace the main path of flow back to the head. The stream level value is incremented by one and is assigned to all transport reaches that terminate at this path. U.S. Department of the Interior. U.S. Geological Survey. The National Hydrography Dataset: Concepts and Contents. February 2000 U.S. Geological Survey Ask USGS - Water Webserver Team mailing

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Reston VA 20192 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+streamclp Although this data set has been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey 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 U.S. Geological Survey 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. Export Full coverage zipped 1 http://water.usgs.gov/GIS/dsdl/streamclp.e00.gz SDTS Full coverage zipped 1 http://water.usgs.gov/GIS/dsdl/streamclp.sdts.tar.gz None. This dataset is provided by USGS as a public service. 20041108 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing

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Reston VA 20192 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+streamclp FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998