Date (Revision)

2010-04-01

Code

http://paikkatiedot.fi/so/1000244

Purpose

Orthophotos are utilized for mapping and also for planning and monitoring the environment. Colour or black-and-white orthophotos are suitable for planning or as background material for various map presentations. False colour orthopohotos and forest orthos are best suitable for, e.g. forest inventory.

Point of contact

Organisation name	Individual name	Electronic mail address	Role
National Land Survey of Finland		customerservice@nls.fi	Owner

Maintenance and update frequency

As needed

Maintenance note

New colour and false colour images are taken every three years, except for North Lapland, which is photographed approximately every 12 years. Aerial photography plans can be seen on the status map https://tilannekartta.maanmittauslaitos.fi/ilmakuva

In addition, product called Ortophoto (forest ortho) is available. The product is similar to Ortophoto (false colour), but colours have been adjusted in order to perceive coniferous and deciduous forests better.

Other product versions are not updated.

The index map of old aerial photos can be seen in Paikkatietoikkuna https://paikkatietoikkuna.fi/historiallisetilmakuvat

The most up-to-date data is available in the interface and viewing services (see Distribution and further information).

The updating status varies by feature depending on the progress of updating.

Metadata author

Organisation name	Individual name	Electronic mail address	Role
National Land Survey of Finland		customerservice@nls.fi	Owner

Paikkatietohakemiston asiasanasto

• Environment

• Built environment

• Terrain and land cover

• Waterbodies

• avoindata.fi

• Orthophotos

• Aerial photos

GEMET - INSPIRE themes, version 1.0

• Orthoimagery

Alueellinen laajuus

• National

EU legislation

• High-value datasets
• INSPIRE

High-value dataset categories

• Earth observation and environment

Access constraints

Other restrictions

Other constraints

no limitations to public access

Use constraints

Other restrictions

Other constraints

Attribution 4.0 International (CC BY 4.0)

Other constraints

Mention the name of the Licensor (the National Land Survey of Finland), the name of the dataset(s) and the time when the National Land Survey has delivered the dataset(s) (e.g.: contains data from the National Land Survey of Finland Topographic Database 06/2014).

Spatial representation type

Grid

Distance

0.5  m

Language

Finnish

Topic category

• Imagery base maps earth cover
• Location
• Inland waters
• Environment

Supplemental Information

The metadata of the orthophotos is provided by request.

Reference system identifier

EPSG / ETRS89 / TM35FIN(E,N) (EPSG:3067) / 8.6

Distribution format

Name	Version
Tiff (tfw)	1.0
JPEG2000	1.0

Transfer size

4000000

OnLine resource

Protocol	Linkage	Name
	https://asiointi.maanmittauslaitos.fi/karttapaikka/tiedostopalvelu/ortoilmakuva	MapSite Download geospatial data section
WWW:LINK-1.0-http--link	https://www.maanmittauslaitos.fi/karttakuvapalvelu	Karttakuvapalvelu (WMS)
WWW:LINK-1.0-http--link	https://www.maanmittauslaitos.fi/karttakuvapalvelu	Karttakuvapalvelu (WMTS)
http://www.opengis.net/def/serviceType/ogc/wcs	https://avoin-karttakuva.maanmittauslaitos.fi/ortokuvat-ja-korkeusmallit/wcs/v2?service=WCS&request=GetCapabilities	Ortokuvien ja korkeusmallien kyselypalvelu (WCS)
WWW:LINK-1.0-http--link	https://ws.nls.fi/rasteriaineistot/capabilities.xml?service=WMS&request=GetCapabilities&version=1.3.0&updatesequence=0&language=fin	Maanmittauslaitoksen karttakuvapalvelu (WMS)
WWW:LINK-1.0-http--link	https://www.paikkatietohakemisto.fi/geonetwork/srv/api/records/174c57fd-deaa-4af4-aa9d-eafdd469382e	Ortokuvien ja korkeusmallien kyselypalvelu (WCS)

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--link	https://www.maanmittauslaitos.fi/paikkatiedon-tiedostopalvelu	Paikkatiedon tiedostopalvelu (OGC API Processes)

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--link	https://www.maanmittauslaitos.fi/asioi-verkossa/karttapaikka/liittyvat-palvelut	Hakemistokäyttöliittymä

Hierarchy level

Dataset

Statement

NLS Orthophotos is the only set of aerial photographs that covers the whole of Finland.

Starting from 2009, orthophotos are also available in colour and false colour format. The coordinate reference system used in the photo shoots until 2007 was KKJ, i.e. the national grid coordinate system (zones of the coordinate reference system). As of 2008, the coordinate reference system used in aerial photos has been ETRS89/TM35FIN.

The accuracy of an orthophoto depends on the sensor used in aerial photography, the photographing altitude and the elevation model used in producing the orthophoto. The elevation model has the biggest influence on the geometrical accuracy of the photo. The positional accuracy of an orthophoto is 0.5–2 metres.

The product can be printed out on scale ranging from 1:1 000.

Included with dataset

No

Date (Revision)

2020-09-18

Other citation details

Film, black-and-white

Pixel size 0.5 metres.

Normal size 10,000 x 10,000 pixels (general map-sheet division, KKJ).

Normal size 12,000 x 12,000 pixels (TM35 map-sheet division, ETRS-TM35FIN) consists of a maximum of 256 different greyscale values (8 bit).

Film, false colour

Pixel size 0.5 m.

Normal size 10,000 x 10,000 pixels (general map-sheet division, KKJ).

Normal size 12,000 x 12,000 pixels (TM35 map-sheet division, ETRS-TM35FIN) consists of three colour channels (near-IR, red, green).

Each colour channel contains a maximum of 256 different shade values (8 bit).

Digital, colour

Pixel size 0.5 m.

Normal size 12,000 x 12,000 pixels (TM35 map-sheet division, ETRS-TM35FIN) consists of three colour channels (red, green, blue).

Each colour channel contains a maximum of 256 different shade values (8 bit).

Digital, false colour

Pixel size 0.5 m.

Normal size 12,000 x 12,000 pixels (TM35 map-sheet division, ETRS-TM35FIN) consists of three colour channels (near-IR, red, green).

Each colour channel contains a maximum of 256 different shade values (8 bit).

Metadata

File identifier

8bc5dfd6-752a-40bc-9620-d67e43ab07ae XML

Metadata language

Finnish

Character set

8859 Part 10

Hierarchy level

Dataset

Hierarchy level name

Aineisto

Date stamp

2024-06-06T12:28:54

Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0

Metadata author

Organisation name	Individual name	Electronic mail address	Role
National Land Survey of Finland		customerservice@nls.fi	Point of contact

Other language

Language	Character encoding
Swedish	UTF-8
English	UTF-8
Finnish	UTF8