TY  - Data
T1  - Long time series kilometer level annual average ground temperature dataset in the Northern Hemisphere (1850-2100)
A1  - Peng Xiaoqing
A1  - jinhaodong
A1  - Zhao guohui
DO  - 10.12072/ncdc.nieer.db4213.2024
PY  - 2024
DA  - 2024-03-01
PB  - National Cryosphere Desert Data Center
AB  - The annual average ground temperature in permafrost regions is another important indicator for studying permafrost changes. In previous studies, there have been many explorations on the changes in annual average ground temperature over historical periods based on field measured data and remote sensing inversion algorithms, but their spatial resolution is relatively low. Based on CMIP6 data, obtain surface temperature in permafrost regions with a resolution of 1km through downscaling methods; Then, this data is used as a high-precision and high-resolution input variable for the future variation of multi-year average ground temperature, further obtaining a 1km resolution annual average ground temperature in the northern hemisphere. By using multiple machine learning methods to obtain multi-mode averages, the accuracy and resolution of the annual average ground temperature dataset are improved. The RMSE of the output result of the ensemble average mode is 1.01 ℃, MAE is 0.69 ℃, and R is 0.89.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/dc58dd10-50c2-4bc6-a8b2-64f5c0c9ce32
ER  -