QUICK REFERENCE
VMAP: SPRINGS, WELLS, & DAMS
Springs, Wells, & Dams: 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 MacArthur 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: Feature code
F_code_des: Description
of “F_code”:
BH120=Rapids
BI020=Dam/Weir
BH180=Waterfall
BH170=Spring/Waterhole
short_desc: Same
as “F_code_des”