Snow-lingering areas of Upper LaplandYlä-Lapin lumenviipymät
Ylä-Lapin lumenviipymätSnow-lingering areas of Upper Lapland
This dataset identifies areas in Upper Lapland (Ylä-Lappi) where snow persisted longer than in the surrounding terrain, derived from Sentinel-2 satellite imagery. Snow patches were detected using Google Earth Engine's Sentinel-2 image archive covering the years 2018–2021, with images compared at two-week intervals across different areas. A pixel was classified as a snow-lingering area based on its snow cover pattern across the observed years. The dataset is published via Finland's open data portal (avoindata.fi) and can support environmental and glaciological monitoring of snow persistence in northern Finland.Alueita, joilla lumi viipyi muuta ympäristöä pidempään tunnistettiin Sentinel 2 -satelliittikuvilta käyttäen Google Earth Engine Sentinel 2 satelliittikuva-arkistoa vuosilta 2018-2021. Kuvia verrattiin vaiheittain kahden viikon välein eri alueilta. Pikseli on tulkittu lumenviipymäksi, jos vuosien...
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Data schema (2 fields)
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| Field | Type | Description |
|---|---|---|
| Value | int | Classification code indicating whether the pixel is identified as a snow patch.Classification code indicating whether the pixel is identified as a snow patch. |
| Count | number | Number of pixels associated with the given classification value.Number of pixels associated with the given classification value. |
Schema captured from ckan 29 days ago.
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Sample data (2 records)
| Value | Count |
|---|---|
| 0 | 523211274 |
| 1 | 813669 |
Live sample captured at profiling time — values may have changed upstream.
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Using the API
Query examples
curl -s 'https://www.avoindata.fi/data/api/3/action/package_show?id=yla-lapin-lumenviipymat' -H 'Accept: application/json'Full CKAN dataset record: resources, licence, organization, freshness.
Dataset
Volume & freshness
License
No license declared upstream.
Distributions (3)
SYKEn Avoin tieto -palvelu: Ylä-Lapin lumenviipymät
https://wwwd3.ymparisto.fi/d3/gis_data/spesific/yla_lappi_lumenviipymat.zipYlä-Lapin luontotyypit -katselupalvelu
https://paikkatiedot.ymparisto.fi/geoserver/ylalapin_luontoaineistot/wmstYlä-Lapin luontotyypit -latauspalvelu
https://paikkatiedot.ymparisto.fi/geoserver/ylalapin_luontoaineistot/wcs?service=WCS&version=2.0.1&request=GetCapabilitiesSource: ckan · Open original page
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