Global Geographic Information Systems

 

 

VMAP_1V10 - Vector Map Level 0 (Digital Chart of the World)

Table of Contents

Identification Information
Data Quality Information
Spatial Data Organization Information
Spatial Reference Information
Entity and Attribute Information
Distribution Information
Metadata Reference Information


IDENTIFICATION_INFORMATION

Citation: Citation_Information: Originator: National Imagery and Mapping Agency Publication_Date: 19970100 Title: VMAP_1V10 - Vector Map Level 0 (Digital Chart of the World) Edition: 3 Geospatial_Data_Presentation_Form: Map Publication_Information: Publication_Place: Fairfax, VA Publisher: National Imagery and Mapping Agency Other_Citation_Details: Stock Number VMAP0DATA National Stock Number (NSN): 7644014361830, 7644014361831, 7644014361833 Online_Linkage: National Imagery and Mapping Agency Larger_Work_Citation: Citation_Information: Originator: Publication_Date: Title: Publication_Information: Publication_Place: Publisher: Online_Linkage: Terrain Modeling Project Office Description: Abstract: 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: The VMap Level 0 is a general purpose global database designed to support Geographic Information Systems applications. Supplemental_Information: Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 199701 Ending_Date: 199701 Currentness_Reference: Publication date Status: Progress: Complete Maintenance_and_Update_Frequency: Continually Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -180.0000 East_Bounding_Coordinate: 180.0000 North_Bounding_Coordinate: 90.0000 South_Bounding_Coordinate: -90.000000 East_Bounding_Coordinate: -34.8253 North_Bounding_Coordinate: 30.0004 South_Bounding_Coordinate: -53.1384 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Vector Map Theme_Keyword: VMap Theme_Keyword: DCW Theme_Keyword: digital global basemap Theme_Keyword: GIS database Theme_Keyword: Global digital database Theme_Keyword: CD-ROM Theme_Keyword: rivers Theme_Keyword: roads Theme_Keyword: railroads Theme_Keyword: international boundaries Theme_Keyword: cities Theme_Keyword: airports Theme_Keyword: elevations Theme_Keyword: contours Theme_Keyword: coastlines Theme_Keyword: populated places Theme_Keyword: vegetation Place: Place_Keyword_Thesaurus: None Place_Keyword: global coverage Place_Keyword: world coverage Access_Constraints: none Use_Constraints: Cite National Imagery and Mapping Agency Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: National Imagery and Mapping Agency Contact_Person: Contact_Position: ATTN Contact_Address: Address_Type: mailing and physical address Address: 8613 Lee Highway City: Fairfax State_or_Province: VA Postal_Code: 22031 Country: US Contact_Voice_Telephone: (703) 264-3003 Contact_Facsimile_Telephone: Contact_Electronic_Mail_Address: Hours_of_Service: Native_Data_Set_Environment: Arc/Info coverage format d:\data\database\mapbase\g_trans\dcw\rrline Top

DATA_QUALITY_INFORMATION

Attribute_Accuracy: 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. Positional_Accuracy: Horizontal_Positional_Accuracy: 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. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: This figure represents overall accuracy. Source chart-specific accuracies are available as area feature attributes in the V-Map 0 data quality coverage. Vertical Positional Accuracy is expressed in meters. Vertical accuracy figures were developed by comparing elevation contour locations on 1:24,000 scale maps to elevation values at the same location within the digital database. Some manual interpolation was necessary to complete this test. The analysis results are expressed as linear error at a 90% confidence interval. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: National Imagery and Mapping Agency Publication_Date: 1994 Title: Operational Navigational Chart Edition: Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: St. Louis, MO Publisher: National Imagery and Mapping Agency Other_Citation_Details: Online_Linkage: Larger_Work_Citation: Citation_Information: Originator: Publication_Date: Title: Publication_Information: Publication_Place: Publisher: Online_Linkage: Source_Scale_Denominator: 1,000,000 Type_of_Source_Media: stable-base material Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1974 Ending_Date: 1994 Source_Currentness_Reference: Publication dates Source_Citation_Abbreviation: ONC Source_Contribution: All information found on the source with the exception of aeronautical data Process_Step: Process_Description: Source_Used_Citation_Abbreviation: Process_Date: 199404 Source_Produced_Citation_Abbreviation: Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Organization: Geonex Contact_Person: Contact_Position: Contact_Address: Address_Type: mailing and physical address Address: 8950 North 9th Ave. City: St. Petersburg State_or_Province: FL Postal_Code: 33702 Country: USA Contact_Voice_Telephone: 813-578-0100 Contact_Facsimile_Telephone: 813-577-6946 Contact_Electronic_Mail_Address: Hours_of_Service: Top

SPATIAL_DATA_ORGANIZATION_INFORMATION

Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Complete Chain Point_and_Vector_Object_Count: 7085 Top

SPATIAL_REFERENCE_INFORMATION

Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: .000001 Longitude_Resolution: .000001 Geographic_Coordinate_Units: Decimal Degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.257223563 Top

ENTITY_AND_ATTRIBUTE_INFORMATION

Overview_Description: Entity_and_Attribute_Overview: The DCW used a product-specific attribute coding system that is composed of TYPE and STATUS designators for area, line, and point features; and LEVEL and SYMBOL designators for text features. The TYPE attribute specifies what the feature is, while the STATUS attribute spedcifies the current condition of the feature. Some features require both a TYPE and STATUS code to uniquely identify their characteristics. In order to uniquely identify each geographic attribute in the DCW, the TYPE and STATUS attribute code names are preceded by the two letter coverage abbreviation and a two letter abbreviation for the type of graphic primitive present. VMap-0 data is attribute coded in accordanced with Feature and Attribute Coding Catalog (FACC). The DCW Type/Status codes were mapped into the FACC coding scheme. A full description of FACC may be found in Digital Geographic Information Exchange Standard Edition 1.2, January 1994. Entity_and_Attribute_Detail_Citation: 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. Top

DISTRIBUTION_INFORMATION

Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: NIMA Contact_Person: Contact_Position: ATTN Contact_Address: Address_Type: mailing and physical address Address: 6001 MacArthur Blvd. City: Bethesda State_or_Province: MD Postal_Code: 20816-5001 Country: USA Contact_Voice_Telephone: 301-227-2495 Contact_Facsimile_Telephone: 301-227-24908 Contact_Electronic_Mail_Address: Hours_of_Service: Resource_Description: (Stock Number) VMAP0DATA National Stock Number (NSN): 7644014361830, 7644014361831, 7644014361833 Distribution_Liability: none Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name:VPF Digital_Transfer_Option: Offline_Option: Offline_Media: CD-ROM Recording_Format: ISO 9660 Compatibility_Information: Fees: Ordering_Instructions: For armed forces, Department of Defense, and federal/state government customers only. Must have customer account number. To provide a general idea of content, a sample data set is available from the TMPO Home Page. Custom_Order_Process: # Begin MEL choice specification # PROLOGUE section SITE_ID: nima REQUEST = GET COMPRESS = NONE TAR = YES # End PROLOGUE section DELIV_FMT = TAR Database: FILE_PRODUCT File: vmap0-data/$FILENAME$ # End LOCAL section CHOICE_TYPE = MULTIPLE VALUES = \ vmaplv0.tar.Z => Tar: VMAP0 - Norfolk VA, \ vmaplv0.zip => Zip: VMAP0 - Norfolk VA DEFAULTS = vmaplv0.tar.Z # End ACTION section # End DATASET section # End MEL Choice specification Top

METADATA_REFERENCE_INFORMATION

Metadata_Date: 19970110 Metadata_Review_Date: Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: National Imagery and Mapping Agency Contact_Person: Contact_Position: ATTN Contact_Address: Address_Type: Mailing and physical address Address: 8613 Lee Highway City: Fairfax State_or_Province: VA Postal_Code: 22031 Country: USA Contact_Voice_Telephone: 703-264-3003 Contact_Facsimile_Telephone: Contact_Electronic_Mail_Address: Hours_of_Service: Metadata_Standard_Name: Federal Geographic Data Committee Content Standard for Metadata_Standard_Version: 19940608 Top