Circumpolar raster grids of permafrost extent and geohazard potential for near-future climate scenarios

Karjalainen, Olli; Aalto, Juha; Luoto, Miska; Westermann, Sebastian; Romanovsky, Vladimir E; Nelson, Frederick E; Etzelmüller, Bernd; Hjort, Jan

One of the consequences of warming climate is rising ground temperatures and degradation of perennially frozen ground, permafrost. Thawing of near-surface permafrost can cause geohazards, such as ground subsidence, thaw settlement and thermokarst, potentially harmful to nature and human activity in the Arctic. This dataset contains high-resolution raster grids of near-future permafrost extent and geohazard potential for the Northern Hemisphere permafrost areas. Ground temperature was predicted with statistical models employing geospatial data on environmental conditions at 30 arc-second resolution (~1 km2). These predictions, together with data on factors affecting permafrost stability, were used to formulate geohazard indices. Using climate-forcing scenarios (Representative Concentration Pathways 2.6, 4.5 and 8.5), permafrost extent and hazard potential were projected for the 2041–2060 and 2061–2080 time periods. The resulting dataset consists of seven permafrost (extent during 2000–2014 and the six future scenarios) and 24 geohazard maps in GeoTIFF format.

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Karjalainen, Olli; Aalto, Juha; Luoto, Miska; Westermann, Sebastian; Romanovsky, Vladimir E; Nelson, Frederick E; Etzelmüller, Bernd; Hjort, Jan (2018): Circumpolar raster grids of permafrost extent and geohazard potential for near-future climate scenarios. PANGAEA, https://doi.org/10.1594/PANGAEA.893881,

Supplement to: Hjort, Jan; Karjalainen, Olli; Aalto, Juha; Westermann, Sebastian; Romanovsky, Vladimir E; Nelson, Frederick E; Etzelmüller, Bernd; Luoto, Miska (2018): Degrading permafrost puts Arctic infrastructure at risk by mid-century. Nature Communications, 9(1), 5147, https://doi.org/10.1038/s41467-018-07557-4

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Kontakt

Karjalainen, Olli

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Daten und Ressourcen

Zusätzliche Informationen

Feld Wert
Identifikator DOI:10.1594/PANGAEA.893881
Projekt(e)
Institut University of Oulu: Oulu, FI
Quelle https://doi.pangaea.de/10.1594/PANGAEA.893881
Publikationsdatum 2018-09-11
Version 1.0
Produkt Permafrost Extent and Geohazard Scenatio Maps
Sensor(en)
Dateien
  1. Dataset Description PDF
  2. Geohazard maps: Analytic hierarchy process based index for different scenarios
  3. Geohazard maps: Consensus of geohazard indices for different scenarios
  4. Geohazard maps: Risk zonation index for different scenarios
  5. Geohazard maps: Settlement index for different scenarios
  6. Permafrost extent maps for different scenarios
Variablen [Einheiten]
  1. gridcode (Hazard potential): 0-3 [0=none, 1=low, 2=moderate, 3=high]
  2. gridcode (Permafrost Extent): 1 [ 1=Permafrost]
Region Circum-Arctic
Räumlicher Bezug EPSG:4326 WGS 84
Räumliche Auflösung 1000 m
Räumliche Abdeckung Latitude 30.00 to 83.63, Longitude -180.00 to 180.00
Zeitliche Abdeckung 2000-2014, 2041-2060, 2061-2080
Zeitliche Auflösung
Format Geotiff
Is Supplement To

Hjort, Jan; Karjalainen, Olli; Aalto, Juha; Westermann, Sebastian; Romanovsky, Vladimir E; Nelson, Frederick E; Etzelmüller, Bernd; Luoto, Miska (2018): Degrading permafrost puts Arctic infrastructure at risk by mid-century. Nature Communications, 9(1), 5147, https://doi.org/10.1038/s41467-018-07557-4
Zusammenhang mit

Karjalainen, Olli; Aalto, Juha; Luoto, Miska; Westermann, Sebastian; Romanovsky, Vladimir E; Nelson, Frederick E; Etzelmüller, Bernd; Hjort, Jan (2019): Circumpolar permafrost maps and geohazard indices for near-future infrastructure risk assessments. Scientific Data, 6, 190037, https://doi.org/10.1038/sdata.2019.37

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