Curtis V. Price Naomi Nakagaki Kerie J. Hitt Rick M. Clawges 20070401 1.0 vector digital data USGS Digital Data Series 240 Reston, VA U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?ds240_landuse_src_poly Curtis V. Price Naomi Nakagaki Kerie J. Hitt Rick M. Clawges 20070401 1.0 map U.S. Geological Survey Data Series 240 Reston, VA U.S. Geological Survey USGS form reference: Price, C.V., Nakagaki, N., Hitt, K.J., and Clawges, R.C., 2006, Enhanced Historical Land-Use and Land-Cover Data Sets of the U.S. Geological Survey, U.S. Geological Survey Digital Data Series 240. [digital data set] http://pubs.usgs.gov/ds/2006/240 http://pubs.usgs.gov/ds/2006/240/ This polygon data set provides ancillary information to supplement a release of enhanced U.S. Geological Survey (USGS) historical land-use and land-cover data. The data set presents some of the original file-header documentation, as well as some details describing how the data files were used in the data release, in a geographic context. This data set presents information about USGS historical land-luse and land-cover data in its geographic context, as polygon features covering the areas of the land-use and land-cover data set which they document. This data set is released as part of an enhanced version of previously published USGS land-use and land-cover data, edited to perform attribute and geographic corrections, recast to the North American Horizontal Datum of 1983, and reformatted to commonly used geospatial data file formats. The use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in ArcInfo format, this metadata file may include some ArcInfo-specific terminology. Although these data have 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. 20050102 publication date Complete None planned -157.330542 -65.999375 61.999559 18.872230 None land landuse landcover GIRAS LULC digital geographic inlandWaters None United States USA none none U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

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Reston VA 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+ds240_landuse_src_poly http://water.usgs.gov/GIS/browse/ds240_landuse_src_poly.png Illustration of the data set. PNG None Unclassified None Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535 James R. Anderson Ernest E. Hardy John T. Roach Richard E. Witmer 1976 Reston, Virginia U.S. Geological Survey http://landcover.usgs.gov U.S. Geological Survey 1990 Reston, Virginia U.S. Geological Survey http://landcover.usgs.gov U.S. Environmental Protection Agency 1994 vector digital data Washington, DC, USA U.S. Environmental Protection Agency http://www.epa.gov/waterscience/BASINS/metadata/giras.htm Polygon consistency checked in ArcInfo. (No overlaps or seams present.) Visually checked against land use and land cover data sets. U.S. Geological Survey 1990 vector digital data Reston, Virginia U.S. Geological Survey http://landcover.usgs.gov ftp://edcftp.cr.usgs.gov/pub/data/LULC 250000 digital data 1990 publication date giras Land use and land cover data file metadata from GIRAS header records Downloaded GIRAS files from EDC website, extracted header information from files using ArcInfo AML programs 20050315 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

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Reston VA 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+ds240_landuse_src_poly Vector G-polygon 493 Label point 493 GT-polygon composed of chains 493 Point 10 0.000001 0.000001 Decimal degrees North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 src_poly polygon attribute table USGS land use and land cover data files (GIRAS format) FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. 100 100% accurate (internally verified by software) As needed Shape Feature geometry. ESRI Coordinates defining the features. 100 100% accurate (internally verified by software) As needed SRCEFILE Source GIRAS file name USGS EROS Data Center FTP site ftp://edcftp.cr.usgs.gov The USGS GIRAS files were posted on the website using a pathname of the form /pub/data/LULC/250K/<quadname>/land_use.gz, or in a few cases where the data was tiled in two pieces, land_use1.gz and land_use2.gz. The SRCEFILE value is the name of the directory, for example <quadname> or <quadname>1 and <quadname>2. 20050101 20050101 100 percent verified against ftp site 20050315 As needed SRCSCALE Source scale of land use data USGS land use and land cover data file in GIRAS format 100000 1:100,000 scale map sheet source USGS 250000 1:250,000 scale map sheet source USGS 20050101 20050101 100 percent verified against source data None planned FILEDATE USGS digital file date USGS land use and land cover data file in GIRAS format Date in form YYYYMMDD USGS land use and land cover data file in GIRAS format 100 percent verified against source data None planned TITLE Map title USGS land use and land cover data file in GIRAS format Map sheet title, extracted from data file 20050101 20050101 100 percent verified against source data None planned SRCEYEAR Date of source materials (air photographs) USGS land use and land cover data file in GIRAS format 1970 1985 Year 1 100 percent verified against source data None planned LATMIN minimum latitude Calculated from GIRAS file header (registration points), in decimal degrees, NAD27 18.875 61 Degrees .000001 LATMAX maximum latitude Calculated from GIRAS file header (registration points), in decimal degrees, NAD27 19.5 62 Degrees .000001 LONMIN minimum longitude Calculated from GIRAS file header (registration points), in decimal degrees, NAD27 -157.333328 -68.0000 Degrees .000001 LONMAX maximum longitude Calculated from GIRAS file header (registration points), in decimal degrees, NAD27 -156.699997 -66 Degrees .000001 RMS Root-Mean-Square error Calculated from GIRAS file header (registration points) by regression of internal GIRAS tic locations to corresponding UTM locations, using the ArcInfo TRANFORM command. 2.8 60.0 Meters 0.1 20050101 20050101 URL URL to access original GIRAS files USGS ftp site ftp://edcftp.usgs.gov, accessed March 11, 2005 Universal Resource Locator path 20050101 20050101 TILE Tile code This is the foreign key to the tilepoly data set. If several files were used to create a single land use data tile, this key is duplicated. GAABBB AA represents the tile SE corner north latitude; BB represents the tile SE corner west longitude. NOTE Free text These are notes describing the processing of USGS land use and land cover files in GIRAS format free text U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

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Reston VA 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://water.usgs.gov/user_feedback_form.html Downloadable Data 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. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, this metadata file may include some vendor-specific terminology. ESRI Shapefile Polygon features stored as a collection of binary files. ZIP-format archive 10 KB http://water.usgs.gov/GIS/dsdl/ds240/polygon/src_poly.zip None. This dataset is provided by USGS as a public service. 20070401 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

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Reston VA 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+ds240_landuse_src_poly FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998