Permafrost extent for the Northern Hemisphere, v3.0 from MODIS LST, ERA5, 1997-2019

Obu, Jaroslav; Westermann, Sebastian; Barboux, Chloé; Bartsch, Annett; Delaloye, Reynald; Grosse, Guido; Heim, Birgit; Hugelius, Gustaf; Irrgang, Anna; Kääb, Andreas Max; Kroisleitner, Christine; Matthes, Heidrun; Nitze, Ingmar; Pellet, Cécile; Seifert, Frank Martin; Strozzi, Tazio; Wegmüller, Urs; Wieczorek, Mareike.; Wiesmann, Andreas

This dataset contains permafrost extent data produced as part of the European Space Agency's (ESA) Climate Change Initiative (CCI) Permafrost project. It forms part of the second version of their Climate Research Data Package (CRDP v2). It is derived from a thermal model driven and constrained by satellite data. Grid products of CDRP v2 are released in annual files, covering the start to the end of the Julian year. This corresponds to average annual ground temperatures (at 2 m depth) which forms the basis for the retrieval of yearly fraction of permafrost-underlain and permafrost-free area within a pixel. A classification according to the IPA (International Permafrost Association) zonation delivers the well-known permafrost zones, distinguishing isolated (0-10%) sporadic (10-50%), discontinuous (50-90%) and continuous permafrost (90-100%).

Case A: This covers the Northern Hemisphere (north of 30°) for the period 2003-2019 based on MODIS Land Surface temperature merged with downscaled ERA5 reanalysis near-surface air temperature data. Case B: This covers the Northern Hemisphere (north of 30°) for the period 1997-2002 based on downscaled ERA5 reanalysis near-surface air temperature data which are bias-corrected with the Case A product for the overlap period 2003-2019 using a pixel-specific statistics for each day of the year.

Citation

In order to use these data, you must cite this data set with the following citation:

Obu, J.; Westermann, S.; Barboux, C.; Bartsch, A.; Delaloye, R.; Grosse, G.; Heim, B.; Hugelius, G.; Irrgang, A.; Kääb, A.M.; Kroisleitner, C.; Matthes, H.; Nitze, I.; Pellet, C.; Seifert, F.M.; Strozzi, T.; Wegmüller, U.; Wieczorek, M.; Wiesmann, A. (2021): ESA Permafrost Climate Change Initiative (Permafrost_cci): Permafrost extent for the Northern Hemisphere, v3.0. NERC EDS Centre for Environmental Data Analysis, 28 June 2021. doi:10.5285/6e2091cb0c8b4106921b63cd5357c97c. https://dx.doi.org/10.5285/6e2091cb0c8b4106921b63cd5357c97c

Contact

Obu, Jaroslav

Metadata Access

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APGC Dataset Metadata in JSON-Format

Data and Resources

Additional Info

Field Value
Identifier DOI:10.5285/6e2091cb0c8b4106921b63cd5357c97c
Project(s) ESA Permafrost Climate Change Initiative Project (Permafrost_cci)
Institute University of Oslo
Source https://dx.doi.org/10.5285/6e2091cb0c8b4106921b63cd5357c97c
Publication Date 2021-06-25
Version 3.0
Product Permafrost Extent
Sensor MODIS, MERIS, ASAR, AVHRR/3, SPOT, SAR-X
Files
  1. Permafrost extent per year
Variables [Units]
  1. PFR: permafrost_area_fraction [percent]
Region Circum-Arctic
Spatial Reference EPSG:3995 WGS 84 / Arctic Polar Stereographic
Spatial Resolution 1000 m
Spatial Coverage Latitude 30.00 to 90.00, Longitude -180.00 to 180.00
Temporal Coverage 1997-01-01T00:00:00 - 2019-12-31T23:59:59
Temporal Resolution July-August
Format NetCDF
Is Supplement To

[ PROVISIONAL ] Obu, J.; Westermann, S.; Barboux, C.; Bartsch, A.; Delaloye, R.; Grosse, G.; Heim, B.; Hugelius, G.; Irrgang, A.; Kääb, A.M.; Kroisleitner, C.; Matthes, H.; Nitze, I.; Pellet, C.; Seifert, F.M.; Strozzi, T.; Wegmüller, U.; Wieczorek, M.; Wiesmann, A. (9999): ESA Permafrost Climate Change Initiative (Permafrost_cci): Permafrost version 3 data products. Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/8239d5f6263f4551bf2bd100d3ecbead
Related to

Obu, Jaroslav; Westermann, Sebastian; Kääb, Andreas; Bartsch, Annett (2018): Ground Temperature Map, 2000-2016, Northern Hemisphere Permafrost. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.888600

Dataset extent