The
vector map product are usually seen as being of three different types: low resolution (level 0), medium resolution (level 1) and high resolution (level 2).
Level Zero (VMAP0) Level 0 provides worldwide coverage of geo-spatial data and is equivalent to a small
scale (1:1,000,000). The data are offered either on CD-ROM or as direct download, as they have been moved to the
public domain. Data are structured following the
Vector Product Format (VPF), compliant with standards MIL-V-89039 and MIL-STD 2407.
Data sets The entire coverage has been divided into four data sets: •
North America (NOAMER) v0noa •
Europe and North
Asia (EURNASIA) v0eur •
South America,
Africa, and
Antarctica (SOAMAFR) v0soa • South
Asia and
Australia (SASAUS) v0sas
Level One (VMAP1) Level 1 data are equivalent to a medium scale resolution (1:250,000). Level 1 tiles follow the
MIL-V-89033 standard. • Horizontal accuracy: 125–500m • Vertical accuracy: 0.5–2 Contour Interval (for example: if contour interval 50 m, accuracy will be 25 to 100m)
Data sets VMAP Level 1 is divided in 234 geographical tiles. Only 57 of them are currently (2006) available for download from
NGA. Among the available datasets, coverage can be found for parts of
Costa Rica,
Libya,
United States,
Mexico,
Iraq,
Russia,
Panama,
Colombia and
Japan.
Level Two (VMAP2) Level 2 data are equivalent to a large scale resolution. Level 2 tiles follow the
MIL-V-89032 standard. • Horizontal accuracy: 50–200m • Vertical accuracy: 0.5–2 Contour Interval (for example: if contour interval 50 m, accuracy will be 25–100m) ==Debate about availability of data==