Truth or Consequences 1:100000 Quad Hydrography DLGs

Metadata from the RGIS Metadata Repository

Identification Information

Title Truth or Consequences 1:100000 Quad Hydrography DLGs
Date 2009-02-17
Date Type Publication
Cited Responsible Party
Organization Name U.S. Geological Survey or another mapping agency in cooperation with USGS.
Role identify
Presentation Form vector digital data
Abstract 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.
Purpose 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.
Status In work
Point of Contact
Individual Name
Organization Name USGS
Position Name Clearinghouse Manager
Role Point of contact
Voice 703-648-4543
Facsimile
Address
Delivery Point 508 National Center
City Reston
Administrative Area VA
Postal Code 20192
Country USA
Electronic Mail Address
Maintenance and Update Frequency Irregular
Descriptive Keywords digital line graph, DLG, hydrography, transportation, boundaries, U.S. Public Land Survey System, hypsography
Access Constraints None
Use Constraints None. Acknowledgement of the U.S. Geological Survey would be appreciated in products derived from these data.
Language English
Topic Category inlandWaters
Extent
Geographic Bounding Box
West Bound -108.000092
East Bound -105.999947
North Bound 35.000069
South Bound 32.499969
Temporal Extent
Beginning Position 1987-06-19
Ending Position Present
Back to Top

Distribution Information

Distributor
Individual Name
Organization Name Earth Data Analysis Center
Position Name Clearinghouse Manager
Role Point of contact
Voice 505-277-3622 ext. 230
Facsimile 505-277-3614
Address
Delivery Point MSC01 1110
Delivery Point 1 University of New Mexico
City Albuquerque
Administrative Area NM
Postal Code 87131-0001
Country USA
Electronic Mail Address clearinghouse@edac.unm.edu
Transfer Options
Online Resource ZIP
Back to Top

Spatial Reference Information

Spatial References
Spatial Reference North American Datum of 1927
Online Reference EPSG:4267
Spatial Reference Clarke 1866
Online Reference EPSG:7008
Spatial Reference National Geodetic Vertical Datum of 1929
Online Reference EPSG:5102
Indirect Spatial Reference Socorro County (35053)
Geometric Object Type String
Geometric Object Count 1
Back to Top

Data Quality Information

Attribute Accuracy Report
Report Refer to Positional_Accuracy element.
Quantitative Attribute Accuracy Assessment
Attribute Accuracy Value
Attribute Accuracy Explanation
Horizontal Positional Accuracy Report
Report For Digital Revision Status = Not revised:
Quantitative Horizontal Positional Accuracy Assessment
Horizontal Positional Accuracy Value
Horizontal Positional Accuracy Explanation
Vertical Positional Accuracy Report
Report For Hypsography and Hydrography Only: For Digital Revision Status = Not revised:
Quantitative Vertical Positional Accuracy Assessment
Vertical Positional Accuracy Value
Vertical Positional Accuracy Explanation
Logical Consistency Report 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.
Completeness Report For Digital Revision Status = Not revised Data completeness reflects the content of the source quadrangle. Features may have been eliminated or generalized on the source graphic, due to scale and legibility constraints. For Digital Revision Status = Limited Update This file has undergone limited update digital revision. The file contains only (1) those features that are photoidentifiable on monoscopic source, supplemented with limited ancillary source, and (2) those features, present on the original source quadrangle, that can not be reliably photoidentified but that are not considered particularly prone to change. For Digital Revision Status = Standard Update This file has undergone standard update digital revision. The data completeness of this file meets NMD standards for feature content.
Lineage
Source Information
Source Citation
Source Scale Denominator 100000
Type of Source Media stable-base material
Source Time Period of Content
Beginning Position 1987-06-19
Ending Position Present
Source Currentness Reference ground condition
Source Citation Abbreviation MAP1
Source Contribution spatial and attribute information
Process Step
Process Description 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.
Source Used Citation Abbreviation MAP1
Process Date Unknown
Process Time
Process Contact
Back to Top

Metadata Reference Information

File Identifier f4dbbf45-c459-4fa9-b5c3-e566d5030893
Metadata Language English
Hierarchy Level Dataset
Date Stamp 2019-05-26
Metadata Standard Name ISO 19115:2003
Metadata Standard Version 1.0
Metadata Contact
Individual Name
Organization Name Earth Data Analysis Center
Position Name Clearinghouse Manager
Role Point of contact
Voice 505-277-3622 ext. 230
Facsimile 505-277-3614
Address
Delivery Point MSC01 1110
Delivery Point 1 University of New Mexico
City Albuquerque
Administrative Area NM
Postal Code 87131-0001
Country USA
Electronic Mail Address clearinghouse@edac.unm.edu
Back to Top