Dataset extent

Tarkkan vertailuaikasarjat (satelliittihavainnot) / Reference timeseries in Tarkka (satellite observations)

[FI] Vertailuaikasarjoissa esitetyt satelliittihavainnot (EO) perustuvat asemaa ympäröivän, halkaisijaltaan enintään 930 metrin suuruisen pyöreän vertailualueen sisältä kerättyihin havaintoihin. Vertailualueesta on poistettu maa-alueet, joten vertailualueen koko ja muoto vaihtelevat asemittain etenkin pienillä järvillä ja lähellä rantaviivaa.

Kutakin vertailuasemaa vastaavalle vertailualueelle on laskettu EO-havainnoista statistiikat, joista Tarkkan vertailuaikasarjassa visualisoidaan mediaani ja 25/75-persentiilit. EO-havainnoista lasketut statistiikat taltioidaan STATUS-järjestelmän tietokantaan eikä niitä ole saatavilla rajapintapalveluna.

[EN] The satellite observations (EO) presented in reference timeseries are based on observations within a circular reference region centered at the nominal station location. The reference region is at most 930 meters by diameter. Areas covered by land are removed from the reference regions, hence the actual size and shape of the region varies by station, especially in small lakes and stations close to shoreline.

For each reference station, EO-statistics are computed within the corresponding reference region. The median and P25/P75-percentiles are visualized as a reference time series in Tarkka. The computed statistics values are stored in the STATUS-database and are not available via API-services.

Data and Resources

Additional Info

Field	Value
File Identifier	{732E454F-252E-4C29-BA06-253245E75A27}
Metadata Language	fin
Organisation responsible for metadata	Suomen ympäristökeskus / Finnish Enviroment Institute (Syke)
Contact information of the organisation responsible for metadata	eotuki@syke.fi
The role of the organisation responsible for metadata	pointOfContact
Metadata revision date	2024-06-17
EPSG Code of the Reference System, see https://epsg.io/	EPSG:3067
Resource Date	2018-03-22
Resource Date Type	publication
Unique Resource identifier
Organisation Responsible for Resource	Suomen ympäristökeskus / Finnish Enviroment Institute (Syke)
Contact information of the organisation responsible for Resource	eotuki@syke.fi
The role of the organisation responsible for Resource	pointOfContact
Thumbnail image
INSPIRE Data Theme	Sea regions
GEMET Concepts Keyword	remote sensing
GEMET Concepts Keyword	earth observation
GEMET Concepts Keyword	satellite image
GEMET Concepts Keyword	coastal water
GEMET Concepts Keyword	sea water
GEMET Concepts Keyword	surface water
GEMET Concepts Keyword	water body
GEMET Concepts Keyword	Water Framework Directive
GEMET Concepts Keyword	water quality
GEMET Concepts Keyword	freshwater
GEMET Concepts Keyword	inland water
GEMET Concepts Keyword	ecological assessment
GEMET Concepts Keyword	ecological status
GEMET Concepts Keyword	eutrophication
GEMET Concepts Keyword	monitoring
GEMET Concepts Keyword	turbidity
GEMET Concepts Keyword	temperature
GEMET Concepts Keyword	chlorophyll
Resource Classification	Satelliittihavaintotieto
Other keywords	Ei-Inspire
Other keywords: Thesaurus name
Other keywords	TARKKA
Other keywords: Thesaurus name
Other keywords	status assessment
Other keywords: Thesaurus name
Other keywords	brownification
Other keywords: Thesaurus name
Other keywords	secchi depth
Other keywords: Thesaurus name
Use constraints and source	Creative Commons Nimeä 4.0 Kansainvälinen Lisätietoja More info
Access Constraints	no limitations
Representation Type	textTable
Resource Language	eng
Resource Topic Category	environment
Resource Topic Category	inlandWaters
Resource Topic Category	oceans
Service Type
Begin Date of Temporal Extent	None
End Date of Temporal Extent	None
Lineage Information	[FI] Asemia on täydennetty 2019 ja 2021. [EN] More stations have been added in 2019 and 2021.