Date (Revision)

2024-06-07

Date (Creation)

2016-01-01

Identifier

BE.NGI-IGN / 446f2332-099d-4b4d-987a-fb7cb57eb07e

Purpose

Top10Vector is a vector data set containing the NGI's geometrically most accurate and semantically most detailed topo-geographic vector data. The data originate from the topo-geographic inventory of the Belgian territory which was build and is maintained by the National Geographic Institute. The dataset contains feature classes, which are grouped in eight themes: road network, railroad network, hydrography, high-tension network, constructions, land cover and vegetation, local relief and particular zones. The geometry of the data of all these themes is described by x, y, z-coordinates. Top10Vector is available for the entire Belgian territory and can be supplied in the form of an ESRI File Geodatabase, shapefiles or gml-files.

Status

Completed

Maintenance and update frequency

Irregular

Maintenance note

The data update cycle frequency the NGI aims for is six years.

Name

ESRI file geodatabase

Version

10.2

Belgian Federal Thesaurus

• Geology and physical relief

Spatial scope

• National

GEMET - INSPIRE themes, version 1.0

• Land cover

GEMET - Concept themes, version 4.01

• relief (land)
• federal government
• excavation side
• dyke

Use limitation

https://creativecommons.org/licenses/by/4.0/

Access constraints

Other restrictions

Other constraints

No limitations on public access

Use constraints

Other restrictions

Other constraints

https://creativecommons.org/licenses/by/4.0/

Spatial representation type

Vector

Denominator

10000

Metadata language

Nederlands; Vlaams

Character set

8859 Part 15

Topic category

• Imagery base maps earth cover

Description

Belgium

Unique resource identifier

EPSG:3812

Codespace

EPSG

Distribution format

• ESRI file geodatabase ( 10.2 )

OnLine resource

View service ( OGC:WMS )

View service

OnLine resource

Direct access to the webshop ( WWW:LINK-1.0-http--link )

Direct access to the webshop

OnLine resource

https://ac.ngi.be/remoteclient-open/GeoBePartners-open/NGI-IGN/Top10Vector/Top10Vector_ProductSpecification_EN.pdf ( WWW:LINK-1.0-http--link )

technical specifications of the product

Hierarchy level

Dataset

Dataset

Top10Vector-Local Relief

Statement

For this data set, the NGI aims at an update cycle of 1 year for the road network, 3 years for the constructions and 6 years for all the other themes, The update processes vary according to the theme. The road network and the constructions are updated by means of photogrammetric restitution and field surveys. The geometry of these data is updated in stereoscopy (3D), using recent aerial color photographs. Moreover, some topological rules which apply to this dataset are checked. Next, these data are passed on to the field survey service which will update the attribute data. The update of all the other themes is done by interpretation on orthophotographs and field surveys.First, the geometry and the attribute data are updated in monoscopy (2D), using recent orthophotographs. Next, these data are checked on the field and completed. The NGI collaborates with other organizations for the update of certain themes (re-use of existing data). In order to respect the update cycles whenever it is possible, we sometimes work with subcontractors.

File identifier

b9b31789-ac81-4b3e-8d38-21b1fbe5aa69 XML

Metadata language

English

Character set

UTF8

Parent identifier

Top10Vector e0fdc885-8851-482e-80c9-6a0ba3709761

Hierarchy level

Dataset

Hierarchy level name

Top10Vector

Date stamp

2024-08-02T12:35:14

Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0