RGIS::7e32c04e-a9af-4516-8165-58f26f193e75::ISO-19115:2003 eng; USA USGS Clearinghouse Manager 703-648-4543 508 National Center Reston VA 20192 USA pointOfContact 2014-06-16 ISO 19115 Geographic Information - Metadata ISO 19115 1 Unknown North American Datum of 1927 revision http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4267 resourceProvider 4267 Clarke 1866 revision http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:ellipsoid:EPSG::7008 resourceProvider 7008 National Geodetic Vertical Datum of 1929 revision http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:datum:EPSG::5102 resourceProvider 5102 Chaco Mesa 1:100000 Quad Hydrography DLGs 2009-02-17T00:00:00 publication Downloadable Data U.S. Geological Survey or another mapping agency in cooperation with USGS. originator U.S. Geological Survey Reston Virginia publisher Digital line graph (DLG) data are digital representations of cartographic information. DLG's of map features are converted to digital form from maps and related sources. Intermediate-scale DLG data are derived from USGS 1:100,000-scale 30- by 60-minute quadrangle maps. If these maps are not available, Bureau of Land Management planimetric maps at a scale of 1: 100,000 are used. Intermediate-scale DLG's are sold in five categories: (1) Public Land Survey System; (2) boundaries (3) transportation; (4) hydrography; and (5) hypsography. All DLG data distributed by the USGS are DLG - Level 3 (DLG-3), which means the data contain a full range of attribute codes, have full topological structuring, and have passed certain quality-control checks. DLG's depict information about geographic features on or near the surface of the Earth, terrain, and political and administrative units. These data were collected as part of the National Mapping Program. USGS Clearinghouse Manager 703-648-4543 508 National Center Reston VA 20192 USA digital line graph DLG hydrography transportation boundaries U.S. Public Land Survey System hypsography None. US NM Chaco Mesa U.S. Department of Commerce, 1977, Countries, dependencies, areas of special sovereignty, and their principal administrative divisions (Federal Information Processing Standard 10-3):Washington, D.C., National Institute of Standards and Technology. FIPS codes for states covered U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of The United States, and associated areas (Federal Information Processing Standard 5-2):Washington ,D. C., National Institute of Standards and Technology. Access Constraints: None. Use Constraints: None. Acknowledgement of the U.S. Geological Survey would be appreciated in products derived from these data. eng; USA inlandWaters Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.2.4.1420 -108.0 -106.998 35.4986 36.0017 publication date 2014-06-16T16:29:10.989-06:00 true Entity and Attribute Information http DLG3 attribute codes are used to describe the physical and cultural characteristics of DLG node, line, and area elements. Attribute codes are used to reduce redundant information, provide enough reference information to support integration with larger data base, and describe the relationships between cartographic elements. Each DLG element has one or more attribute codes composed of a three digit major code and a four-digit minor code. For example, with the 1: 24,000-scale DLG data, the line attribute code 050 0412 has a major code (050), meaning hydrography, with a minor code (0412) meaning stream. U.S.Department of the Interior, U.S. Geological Survey, 1987 Digital Line Graphs from 1:100,000-Scale Maps--Data Users Guide 2; Reston, Virginia A hypertext extract is available at: URL: http://edc.usgs.gov/glis/hyper/guide/usgs_dlg Softcopies in ASCII, WordPerfect, and PostScript format are available at: URL: ftp://mapping.usgs.gov/pub/ti/DLG/ U.S.Department of the Interior, U.S.Geological Survey, 1990, Standards for Digital Line Graphs; Reston, Virginia Softcopies in ASCII, WordPerfect, and PostScript format are available at: URL: ftp://mapping.usgs.gov/pub/ti/DLG/ Earth Data Analysis Center Clearinghouse Manager 505-277-3622 ext. 230 505-277-3614 MSC01 1110 1 University of New Mexico Albuquerque NM 87131-0001 USA clearinghouse@edac.unm.edu 0800 - 1700 MT, M-F -7 hours GMT distributor None. The files are available to download from Resource Geographic Information System (RGIS) (http://rgis.unm.edu). Contact Earth Data Analysis Center at clearinghouse@edac.unm.edu ZIP 1 http://gstore.unm.edu/apps/rgisarchive/datasets/7e32c04e-a9af-4516-8165-58f26f193e75/hchacomesshp.original.zip http://gstore.unm.edu/apps/rgisarchive/datasets/7e32c04e-a9af-4516-8165-58f26f193e75/hchacomesshp.original.zip http://gstore.unm.edu/apps/rgisarchive/datasets/7e32c04e-a9af-4516-8165-58f26f193e75/metadata/FGDC-STD-001-1998.xml http://gstore.unm.edu/apps/rgisarchive/datasets/7e32c04e-a9af-4516-8165-58f26f193e75/metadata/FGDC-STD-001-1998.html http://gstore.unm.edu/apps/rgisarchive/datasets/7e32c04e-a9af-4516-8165-58f26f193e75/metadata/ISO-19115:2003.xml http://gstore.unm.edu/apps/rgisarchive/datasets/7e32c04e-a9af-4516-8165-58f26f193e75/metadata/ISO-19115:2003.html Topological requirements include: lines must begin and end at nodes, lines must connect to each other at nodes, lines do not extend through nodes, left and right areas are defined for each line element and are consistent throughout the file, and the lines representing the limits of the file (neatline) are free of gaps. The tests of logical consistency were performed by the USGS PROSYS program. The neatline was generated by connecting the four corners of the digital file, as established during initialization of the digital file. All data outside the enclosed region were ignored and all data crossing these geographically straight lines were clipped at the neatline. Data within a specified tolerance of the neatline were snapped to the neatline. Neatline straightening aligned the digitized edges of the digital data with the generated neatline, that is, with the longitude/latitude lines in geographic coordinates. All internal areas were tested for closure using PROSYS. For Digital Revision Status = Not digitally revised: This Digital Line Graph was digitized from the USGS source quadrangle, by either the National Mapping Division, one of their cooperators, or one of their contractors. The digital data were produced by one of the following methods: - scanning a stable-based copy of the graphic materials. The scanning process captured the digital data at a scanning resolution of at least 0.001 inches; the resulting raster data were vectorized and then attributed on an interactive editing station. - scanning the paper map. The scanning process captured the digital data at a scanning resolution of at least 0.001 inches; the resulting raster data were vectorized and then attributed on an interactive editing station. - scanning a stable-based copy of the graphic materials. The resulting raster data were then manually digitized and attributed on an interactive editing station. The resolution of the digital data is at least 0.001 inches. - scanning the paper map. The resulting raster data were then manually digitized and attributed on an interactive editing station. The resolution of the digital data is at least 0.001 inches. - manually digitizing from a stable-based copy of the graphic material using a digitizing table to capture the digital data at a resolution of at least 0.001 inches; attribution was performed either as the data were digitized, or on an interactive edit station after the digitizing was completed. - manually digitizing from the paper map using a digitizing table to capture the digital data at a resolution of at least 0.001 inches; attribution was performed either as the data were digitized, or on an interactive edit station after the digitizing was completed. The determination of the DLG production method was based on various criteria, including feature density, feature symbology, and availability of production systems. Four control points corresponding to the four corners of the quadrangle were used for registration during data collection. An eight parameter projective transformation was performed on the coordinates used in the data collection and editing systems to register the digital data to the internal coordinates used in PROSYS, and a four parameter linear transformation was performed from the PROSYS internal coordinates to Universal Transverse Mercator (UTM) grid coordinates. The DLG data were checked for position by one or more of the following processes: - comparing plots of the digital data to the graphic source. - comparing the digital data to the digital raster scan. DLG data classification was checked by at least one of the following processes. - comparing plots of the digital data to the graphic source - comparing the digital data to the digital raster scan. MAP1 spatial and attribute information 100000 The Topographic Map Names Data Base designation for the source quadrangle. MAP1 U.S. Geological Survey or another mapping agency in cooperation with USGS. ground condition present Earth Data Analysis Center Clearinghouse Manager 505-277-3622 ext. 230 505-277-3614 MSC01 1110 1 University of New Mexico Albuquerque NM 87131-0001 USA clearinghouse@edac.unm.edu 0800 - 1700 MT, M-F -7 hours GMT custodian