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Orthophotos of the July 2021 floods (Vesdre, Meuse, Demer)

This dataset contains the orthophoto mosaics that were created following the floods of July 2021 in the valleys of the Vesdre, the Meuse and the Demer.



Orthophotos are aerial photographs that have been geometrically corrected (orthorectified) to eliminate distortions caused by terrain relief, lens distortion, and camera tilt. Unlike raw aerial imagery, orthophotos have a uniform scale and accurate geometry, making them suitable for cartography, measurements, and visual analysis.



This specific dataset includes orthophotos based on aerial photographs acquired in July 2021 by Hansa Luftbild, commissioned by the National Geographic Institute (NGI), following the floods in the zones of the Vesdre, a part of the Meuse downstream of Liège and the Demer. The resulting orthophoto mosaics are georeferenced in the Lambert 2008 coordinate system.



All orthophotos are in colour (RGB). The ground resolution (GSD) is 6.5 cm (4 cm above the Hoëgne). The spatial coverage of this dataset is limited to the affected zones.



The data can be visualized via the corresponding web service (WMS). The data is available on request via https://ngi.be/aanbod/kaarten-en-fotos/luchtfotos-orthofotos/.

Simple

Date (Creation)
2021-10-29
Date (Revision)
2021-10-29
Citation identifier
BE.NGI-IGN / 3c7e259e-51ea-11ec-a1ee-7478273ff935
Status
Completed
Point of contact
Organisation name Individual name Electronic mail address Role

National Geographic Institute

Anke Bracke

products@ngi.be

Custodian
Maintenance and update frequency
Not planned
Data.gov.be themes
  • Science and technology
GEMET - INSPIRE themes, version 1.0
  • Orthoimagery
  • Natural risk zones
Belgian Federal Thesaurus
  • Aerial photographs and orthophotographs
INSPIRE feature concept dictionary
  • Abstract Observed Event
  • Aggregated Mosaic Element
GEMET - Concept themes, version 4.01
  • disaster
  • flood
  • federal government
Spatial scope
  • National
Keywords
  • floods

Use constraints
Other restrictions
Other constraints

•The custodian of the resource holds the rights of property (including the rights of intellectual property) to the geographic files

•The custodian grants the user the right to use the data for his internal use.

•Commercial use of the data under any form is strictly forbidden

•Custodian’s name must be mentioned each time the data are being used publically.

Access constraints
Other restrictions
Other constraints
No limitations on public access
Use limitation

•The custodian of the resource holds the rights of property (including the rights of intellectual property) to the geographic files

•The custodian grants the user the right to use the data for his internal use.

•Commercial use of the data under any form is strictly forbidden

•Custodian’s name must be mentioned each time the data are being used publically.

Spatial representation type
Grid
Distance
0.25  m
Language
Français
Character set
8859 Part 15
Description

Belgium

N
S
E
W
thumbnail




Unique resource identifier
EPSG:3812
Distribution format
Name Version
TIFF
Esri Geodatabase

Digital transfer options

OnLine resource
Protocol Linkage Name

WWW:LINK-1.0-http--link

https://www.ngi.be/website/aanbod/kaarten-en-fotos/luchtfotos-orthofotos/

https://www.ngi.be/website/aanbod/kaarten-en-fotos/luchtfotos-orthofotos/

Hierarchy level
Dataset

Domain consistency

Name of measure

INSPIRE Conformity

Conformance result

Title
COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
Date (Publication)
2010-12-08
Explanation

The dataset’s compliance with the technical requirements as defined by the Commission Regulation (EU) No 1089/2010 of 23 November 2010 has not been checked

Statement

The orthophotos were created from digital aerial photographs. The resolution of the aerial photographs (8 bits) is 25 cm, but they come from the original orthos with a resolution of 6.25 cm (4 cm above the Hoëgne) obtained by processing the aerial photographs taken by Hansa Luftbild on 18, 20 and 21 July at the request of the NGI over the valleys of the Meuse, the Vesdre and the Demer. The orthophotos are georeferenced in the “Lambert 2008” co-ordinate system.

Metadata

File identifier
3c7e259e-51ea-11ec-a1ee-7478273ff935 XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2026-07-08T11:12:02
Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0

Metadata author
Organisation name Individual name Electronic mail address Role

National Geographic Institute

Floor Van Damme

metadata@ngi.be

Point of contact
Other language
Language Character encoding
French
Dutch; Flemish
German
English UTF8
 
 

Overviews

overview

Spatial extent

N
S
E
W
thumbnail




Keywords

floods
Belgian Federal Thesaurus

Aerial photographs and orthophotographs
Data.gov.be themes

Science and technology
GEMET - Concept themes, version 4.01

disaster federal government flood
GEMET - INSPIRE themes, version 1.0

Natural risk zones Orthoimagery
INSPIRE feature concept dictionary

Abstract Observed Event Aggregated Mosaic Element
Spatial scope

National


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