Permafrost active layer thickness 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 active layer thickness 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. The maximum depth of seasonal thaw is provided, which corresponds to the active layer thickness.

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 active layer thickness for the Northern Hemisphere, v3.0. NERC EDS Centre for Environmental Data Analysis, 28 June 2021. doi:10.5285/67a3f8c8dc914ef99f7f08eb0d997e23. https://dx.doi.org/10.5285/67a3f8c8dc914ef99f7f08eb0d997e23

Contact

Obu, Jaroslav

Metadata Access

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Data and Resources

Additional Info

Field Value
Identifier DOI:10.5285/67a3f8c8dc914ef99f7f08eb0d997e23
Project(s) ESA Permafrost Climate Change Initiative Project (Permafrost_cci)
Institute University of Oslo
Source https://dx.doi.org/10.5285/67a3f8c8dc914ef99f7f08eb0d997e23
Publication Date 2021-06-25
Version 3.0
Product Permafrost Active Layer Thickness
Sensor MODIS, MERIS, ASAR, AVHRR/3, SPOT, SAR-X
Files
  1. Active Layer Thickness per year
Variables [Units]
  1. ALT: permafrost_active_layer_thickness [m]
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

Dataset extent

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