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These datasets include mean annual ground temperature (MAGT) at the depth of zero annual amplitude (approximately 3 m to 25 m), active layer thickness (ALT), the probability of the permafrost occurrence, and the new permafrost zonation based on hydrothermal condition for the period of 2000-2016 in the Northern Hemisphere with an 1-km resolution by integrate unprecedentedly large amounts of field data (1,002 boreholes for MAGT and 452 sites for ALT) and multisource geospatial data, especially remote sensing data, using statistical learning modelling with an ensemble strategy, and thus more accurate than previous circumpolar maps.

File naming and required software

MAGT.tif; ALT.tif; Probability.tif; NIEER_PER_HydroThermal_ZONES_2000_2016_NH.shp

Data Citations Data citation guideline What's data citation?

Ran, Y., Li, X., Cheng, G., Che, J., Juha, A., Olli, K., Jan, H., Miska, L., Jin, H., Jaroslav, O., Masahiro, H., Yu, Q., Chang, X. (2021). High-resolution datasets of permafrost thermal state and hydrothermal zonation in the Northern Hemisphere. A Big Earth Data Platform for Three Poles, DOI: 10.11888/Geocry.tpdc.271190. CSTR: 18406.11.Geocry.tpdc.271190. (Download the reference： RIS | Bibtex )

1. Ran, Y., Li, X., Cheng, G., Che, J., Aalto, J., Karjalainen, O., Hjort, J., Luoto, M., Jin, H., Obu, J., Hori, M., Yu, Q., & Chang, X. (2022). New high-resolution estimates of the permafrost thermal state and hydrothermal conditions over the Northern Hemisphere. Earth System Science Data, 14, 865–884. DOI: 10.5194/essd-14-865-2022.( View Details | Bibtex)

Using this data, the data citation is required to be referenced and the related literatures are suggested to be cited.

Support Program

CASEarth:Big Earth Data for Three Poles（grant No. XDA19070000） (No:XDA19000000)

o Strategic Priority ResearchProgram of the Chinese Academy of Sciences: Grant No. XDA19070204 (No:XDA19070204) [XDA19070204]

Copyright & License

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License： This work is licensed under an Attribution 4.0 International (CC BY 4.0)

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