View Metadata
Global GIS : Aqueducts, canals, flumes, penstocks
- Identification Information
- Data Quality Information
- Spatial Data Organization Information
- Spatial Reference Information
- Entity and Attribute Information
- Distribution Information
- Metadata Reference Information
- Identification Information
- Citation
- Originator
- United States. National Imagery and Mapping Agency
- Publication Date
- 2003
- Title
- Global GIS : Aqueducts, canals, flumes, penstocks
- Geospatial Data Presentation Form
- vector digital data
- Collection Title
- Global GIS : global coverage
- Publication Information
- Publication Place
- [Alexandria, VA]
- Publisher
- American Geological Institute
- Online Linkage
- https://hgl.harvard.edu/catalog/harvard-glb-aqcanl
- Abstract
- This datalayer is a polyline coverage representing major roads worldwide and was published as part of the USGS Global GIS : global coverage database. The datalayer was derived from the National Imagery and Mapping Agency's (NIMA, now the Nation Geospatial-Intelligence Agency (NGA)) Vector Map (VMap) Level 0 database (1997). The USGS Global GIS database contains a wealth of USGS and other public domain data, including global coverages of elevation, landcover, seismicity, and resources of minerals and energy at a nominal scale of 1:1 million. The U.S. Geological Survey (USGS) and The American Geological Institute (AGI) announced a cooperative agreement that will focus on making the USGS Global Geographic Information System (GIS) database readily available to educators and the general public in the form of a DVD based world atlas. The Vector Map (VMap) Level 0 database represents the third edition of the Digital Chart of the World. The second edition was a limited release item published 1995 09. The product is dual named to show its lineage to the original DCW, published in 1992, while positioning the revised product within a broader emerging-family of VMap products. VMap Level 0 is a comprehensive 1:1,000,000 scale vector basemap of the world. It consists of cartographic, attribute, and textual data stored on compact disc read only memory (CD-ROM). The primary source for the database is the National Imagery and Mapping Agency's (NIMA) Operational Navigation Chart (ONC) series. This is the largest scale unclassified map series in existence that provides consistent, continuous global coverage of essential basemap features. The database contains more than 1,900 megabytes of vector data and is organized into 10 thematic layers. The data includes major road and rail networks, major hydrologic drainage systems, major utility networks (cross-country pipelines and communication lines), all major airports, elevation contours (1000 foot(ft), with 500ft and 250ft supplemental contours), coastlines, international boundaries and populated places. The database can be accessed directly from the four optical CD-ROMs that store the database or can be transferred to a magnetic media.
- Purpose
- This data is a general purpose global aqueducts, canals, flumes, and penstocks datalayer designed to support Geographic Information Systems applications. This layer is intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production. This layer will provide a basemap for layers related to socio-economic and political anaylsis, statistical enumeration and analysis, or to support graphical overlays and analysis with other spatial data. More advanced user applications may focus on demographics, urban and rural land use planning and related areas including defining boundaries, managing assets and facilities, integrating attribute databases with geographic features, spatial analysis, and presentation output.
- Supplemental Information
- Portions of this metadata are taken directly from the American Geological Institute, Global GIS, Web pages: http://www.agiweb.org/pubs/globalgis/
- Temporal Extent
- Currentness Reference
- original publication date
- Time Instant
- 199701
- Bounding Box
- West
- -122.004005
- East
- 177.989563
- North
- 58.549473
- South
- -45.661942
- Theme Keyword
- Aqueducts
- Canals
- Hydrology
- Flumes
- Penstocks
- Hydraulic structures
- Theme Keyword Thesaurus
- LCSH
- ISO Topic Category
- inlandWaters
- utilitiesCommunication
- Place Keyword
- Earth
- Northern Hemisphere
- Southern Hemisphere
- Eastern Hemisphere
- Western Hemisphere
- Africa
- Asia
- Australia
- Europe
- North America
- South America
- Polar regions
- Place Keyword Thesaurus
- LCSH
- Temporal Keyword
- Access Restrictions
- None
- Use Restrictions
- For educational, non-commercial use only. Although this data set has been developed by the NGA no warranty expressed or implied is made by them 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 NGA or Harvard University in the use of this data, or related materials.
- Status
- Complete
- Maintenance and Update Frequency
- Unknown
- Point of Contact
- Contact Organization
- United States. National Geospatial-Intelligence Agency
- Delivery Point
- Office of Corporate Relations
- Delivery Point
- Public Affairs Division, MS D-54
- Delivery Point
- 4600 Sangamore Road
- City
- Bethesda
- State
- MD
- Postal Code
- 20816-5003
- Country
- USA
- Contact Telephone
- 800-455-0899
- Contact Electronic Mail Address
- chdesk@nga.mil
- Credit
- Cite National Imagery and Mapping Agency (now known as National Geospatial-Intelligence Agency).
- Native Data Set Environment
- Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.1.0.722
- Collection
- Originator
- American Geological Institute
- Originator
- Geological Survey (U.S)
- Originator
- Environmental Systems Research Institute (Redlands, Calif.)
- Originator
- Hearn, Paul P.
- Publication Date
- 2003
- Title
- Global GIS : global coverage
- Geospatial Data Presentation Form
- digital data
- Series Information
- Series Name
- U.S. Geological Survey digital data series
- Issue Identification
- DDS-62A-H
- Publication Information
- Publication Place
- [Alexandria, VA]
- Publisher
- American Geological Institute
- Other Citation Details
- 1 DVD-ROM; Developed by the U.S. Geological Survey; Published by the American Geological Institute; by P. Hearn ... [et al.].
- Data Quality Information
- Attribute Accuracy Report
- 100 percent of attribute codes were reviewed against the source manuscripts. No formal effort was undertaken to develop a quantitative attribute accuracy statement.
- Logical Consistency Report
- All data were found to be topologically correct. No duplicate features are present. All areas are completely described as depicted on the source manuscripts. No undershoots or overshoots are present. All data were consistently captured using the rules described in the narrative associated with the Data Quality Table and in the various feature table narrative files present at the coverage level within the library.
- Completeness Report
- 100 percent of features depicted on the ONC source materials have been captured. 100 percent of the features have valid attribute codes assigned to them.
- Horizontal Positional Accuracy Report
- The Horizontal Positional Accuracy Value represents overall accuracy. Source chart-specific accuracies are available as area feature attributes in the VMap-0 data quality coverage. The primary accuracy analysis was performed on one chart only in the prototyping phase of the DCW project. Horizontal Positional Accuracy is expressed in meters. Detailed horzontal accuracy figures were developed by comparing the positions of well-defined points in the roads, railroads, utility lines, and drainage coverages against sources of higher accuracy, measuring the offsets, and expressing differences as a Circular Map Accuracy figure at a 90% confidence interval. This figure was independently verified by adding known production errors to source chart accuracies in a root sum square calculation.
- Lineage
- Source
- Originator
- United States. National Imagery and Mapping Agency
- Publication Date
- 199701
- Title
- VMAP_1V10 - Vector Map Level 0 (Digital Chart of the World)
- Edition
- 3
- Geospatial Data Presentation Form
- vector digital data
- Publication Information
- Publication Place
- Fairfax, VA
- Publisher
- National Imagery and Mapping Agency
- Other Citation Details
- aquecanl layer
- Source Scale Denominator
- 1000000
- Type of Source Media
- CD-ROM
- Source Temporal Extent
- Time Period Information
- Single Date/Time
- Calendar Date
- 199701
- Source Currentness Reference
- publication date
- Contribution
- Originally published data set
- Source
- Originator
- United States. National Imagery and Mapping Agency
- Publication Date
- 1994
- Title
- Operational navigational chart
- Geospatial Data Presentation Form
- map
- Publication Information
- Publication Place
- St. Louis, MO
- Publisher
- National Imagery and Mapping Agency
- Source Scale Denominator
- 1000000
- Type of Source Media
- stable-base material
- Source Temporal Extent
- Time Period Information
- Range of Dates/Times
- Beginning Date
- 1974
- Ending Date
- 1994
- Source Currentness Reference
- publication dates
- Contribution
- All information found on the source with the exception of aeronautical data
- Spatial Data Organization Information
- Direct Spatial Reference Method
- Vector
- Point and Vector Object Information
- SDTS Terms Description
- SDTS Point and Vector Object Type
- String
- Point and Vector Object Count
- 3059
- Spatial Reference Information
- Horizontal Coordinate System Definition
- Geographic
- Latitude Resolution
- 0.000001
- Longitude Resolution
- 0.000001
- Geographic Coordinate Units
- Decimal degrees
- Geodetic Model
- Horizontal Datum Name
- North American Datum of 1927
- Ellipsoid Name
- Clarke 1866
- Semi-major Axis
- 6378206.400000
- Denominator of Flattening Ratio
- 294.978698
- Vertical Coordinate System Definition
- Altitude System Definition
- Altitude Datum Name
- Unknown
- Altitude Resolution
- 1.000000
- Altitude Distance Units
- Unknown
- Altitude Encoding Method
- Explicit elevation coordinate included with horizontal coordinates
- Entity and Attribute Information
- Entity Type
- Entity Type Label
- Global GIS aqueducts, canals, flumes, penstocks
- Entity Type Definition
- Various man-made water features.
- Entity Type Definition Source
- Global Mapping International
- Attributes
- F_CODE
- Feature and Attribute Coding (FACC) feature code
- BH000
- Inland water. Any known inland waterway body, such as: lake/pond, reservoir, river/stream, etc. requiring separation into individual features due to status/type grouping that is currently indeterminable.
- Definition Source
- Digital Geographic Information Exchange Standard (DIGEST) ed. 2.1 (2000)
- EXS_DESCRI
- Existence description. Textual description of the state or condition of the feature.
- Abandoned/Disused
- Abandoned/Disused
- Under Construction
- Under Construction
- Definite
- Definite
- Definition Source
- Digital Geographic Information Exchange Standard (DIGEST) ed. 2.1 (2000).
- LOC_DESCRI
- Location category textual description. Status of feature relative to surrounding area or water.
- Below Surface/Submerged/Underground
- Below Surface/Submerged/Underground
- On Ground Surface
- On Ground Surface
- Suspended/Elevated Above Ground or Water Surface
- Suspended/Elevated Above Ground or Water Surface
- Unknown
- Unknown
- Definition Source
- Digital Geographic Information Exchange Standard (DIGEST) ed. 2.1 (2000).
- SHAPE
- Feature geometry. (Coordinates defining the features.)
- Definition Source
- ESRI
- SHAPE.LEN
- Feature length in map units (Positive real numbers that are automatically generated.)
- Definition Source
- ESRI
- SHAPE.FID
- Internal feature number. (Sequential unique whole numbers that are automatically generated.)
- Definition Source
- ESRI
- Entity and Attribute Overview
- Entities (features) and Attributes for DCW are fully described in: Department of Defense, 1992, Military Specification Digital Chart of the World (MIL-D-89009): Philadelphia, Department of Defense, Defense Printing Service Detachment Office. VMap-0 is described in: Department of Defense, Military Specification, Vector Map (VMap) Level 0 (MIL-V-89039), 9 Feb 1995.
- Distribution Information
- Format Name
- Shapefile
- Distributor
- Harvard Geospatial Library
- Online Access
- http://hgl.harvard.edu/
- Name
- Metadata Reference Information
- Metadata Date
- 20060207
- Metadata Contact
- Contact Information
- Contact Organization Primary
- Contact Organization
- Harvard Geospatial Library
- Contact Position
- Geospatial Resources Cataloger
- Contact Address
- Address
- Harvard University Library
- Address
- Office For Information Systems
- Address
- 1280 Massachusetts Avenue
- City
- Cambridge
- State or Province
- MA
- Postal Code
- 02138
- Country
- USA
- Contact Voice Telephone
- 617-495-2417
- Contact Facsimile Telephone
- 617-496-0440
- Contact Electronic Mail Address
- hgl_ref@hulmail.harvard.edu
- Hours of Service
- Monday - Friday, 9:00 am - 4:00 pm EST-USA
- Metadata Standard Name
- FGDC Content Standards for Digital Geospatial Metadata
- Metadata Standard Version
- FGDC-STD-001-1998
- Metadata Extensions
- Online Linkage
- http://www.esri.com/metadata/esriprof80.html
- Profile Name
- ESRI Metadata Profile