Articles | Volume 14, issue 8
Research article
12 Aug 2020
Research article |  | 12 Aug 2020

The ERA5-Land soil temperature bias in permafrost regions

Bin Cao, Stephan Gruber, Donghai Zheng, and Xin Li


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (23 Jun 2020) by Chris Derksen
AR by Bin Cao on behalf of the Authors (02 Jul 2020)  Author's response    Manuscript
ED: Publish as is (07 Jul 2020) by Chris Derksen
Short summary
This study reports that ERA5-Land (ERA5L) soil temperature bias in permafrost regions correlates with the bias in air temperature and with maximum snow height. While global reanalyses are important drivers for permafrost study, ERA5L soil data are not well suited for directly informing permafrost research decision making due to their warm bias in winter. To address this, future soil temperature products in reanalyses will require permafrost-specific alterations to their land surface models.