Urban Areas: Identification Information

Originator:

National Imagery and Mapping Agency

Date:

unknown

Title:

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

Purpose:

The VMap Level 0 is a general purpose global database designed to support Geographic Information Systems applications.

Abstract:

The Vector Map (VMap) Level 0 database represents the third edition of the Digital Chart of the World. VMap Level 0 is a comprehensive 1:1,000,000 scale vector 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 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.

Access Constraints:

none

Use Constraints:

Cite National Imagery and Mapping Agency

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.

Contact Address:

6001 McArthur Blvd.

City:

Bethesda

State or Province:

MD

Postal Code:

20816-5001

Country:

USA

Online Linkage:

http://164.214.2.59/publications/vmap0.html

Entity and Attribute Information
(table heading explanations)

Shape:

ArcView file type

F_code:

unknown

F_code_des:

"Built-Up Area" is the only descriptor in column

Nam:

Urban area name (not all polygons have names)

short_desc:

same as F_code_des

Area (m^2):

Area within boundary in meters squared

Perimeter (m):

Distance traced around boundary in meters