Permafrost active layer thickness for the Northern Hemisphere, v2.0 from MODIS LST, ERA5, 1997-2018

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 first version of their Climate Research Data Package (CRDP v1). It is derived from a thermal model driven and constrained by satellite data. Grid products of CDRP v1 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: It covers the Northern Hemisphere (north of 30°) for the period 2003-2017 based on MODIS Land Surface temperature merged with downscaled ERA5 reanalysis near-surface air temperature data. Case B: It 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 2003-2018 using a pixel-specific statistics for each day of the year.

Data and Resources

Additional Info

Field Value
Identifier DOI:10.5285/29c4af5986ba4b9c8a3cfc33ca8d7c85
Project(s) ESA Permafrost Climate Change Initiative Project (Permafrost_cci)
Institute University of Oslo
Source https://dx.doi.org/10.5285/29c4af5986ba4b9c8a3cfc33ca8d7c85
Publication Date 2020-11-02
Version 2.0
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 - 2018-12-31T23:59:59
Temporal Resolution July-August
Format NetCDF
Is Supplement To

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. (2020): ESA Permafrost Climate Change Initiative (Permafrost_cci): Permafrost Climate Research Data Package v1. Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/1f88068e86304b0fbd34456115b6606f
Related to

Dataset extent