TY  - Data
T1  - A dataset of permafrost roof temperature in the Arctic from 2003 to 2023
A1  - Zhu Wenquan
A1  - Guo Hongxiang
DO  - 10.12072/ncdc.arctic-change.db7142.2026
PY  - 2026
DA  - 2026-05-13
PB  - National Cryosphere Desert Data Center
AB  - Since the end of the "stagnation period" of global warming in 2013, the global near surface temperature has rapidly increased, causing changes in the permafrost state over the years. The lack of temperature data on the permafrost roof before and after the stagnation period for ten years has constrained human understanding of the changes in permafrost status. This study used high-precision soil surface temperature data to drive the TTOP model to produce permafrost roof temperatures for the years 2003-2013 and 2014-2023, and validated the accuracy using station observation data. The results showed that the root mean square errors of permafrost roof temperatures (areas below 0 ℃ are permafrost regions) for the years 2003-2013 and 2014-2023 were 1.52 ℃ and 1.74 ℃, respectively, which were better than the approximate period (2000-2016) permafrost roof temperature data (root mean square error of 1.89 ℃) produced by other parameter data driven TTOP models in existing research. Especially near the permafrost boundary (areas where permafrost roof temperatures are close to 0 ℃), the accuracy was significantly improved. The data can be used to distinguish the range of permafrost in the Arctic region and analyze the trend of temperature changes in the permafrost roof.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/596d4b95-5bbf-457b-b248-3369a502660f
ER  -