Articles | Volume 14, issue 4
https://doi.org/10.5194/essd-14-1677-2022
https://doi.org/10.5194/essd-14-1677-2022
Data description article
 | 
11 Apr 2022
Data description article |  | 11 Apr 2022

Description of the China global Merged Surface Temperature version 2.0

Wenbin Sun, Yang Yang, Liya Chao, Wenjie Dong, Boyin Huang, Phil Jones, and Qingxiang Li

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Cited articles

Brohan, P., Kennedy, J. J., Harris, I., Tett, S. F. B., and Jones, P. D.: Uncertainty estimates in regional and global observed temperature changes: A new data set from 1850, J. Geophys. Res.-Atmos., 111, D12106, https://doi.org/10.1029/2005JD006548, 2006. 
Cheng, J., Li, Q., Chao, L., Maity, S., Huang, B., and Jones, P.: Development of High Resolution and Homogenized Gridded Land Surface Air Temperature Data: A Case Study Over Pan-East Asia, Front. Environ. Sci., 8, 588570, https://doi.org/10.3389/fenvs.2020.588570, 2020. 
Cowtan, K. and Way, R. G.: Coverage bias in the HadCRUT4 temperature series and its impact on recent temperature trends, Q. J. Roy. Meteor. Soc., 140, 1935–1944, 2014. 
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The new China global Merged Surface Temperature CMST 2.0 is the updated version of CMST-Interim used in the IPCC's AR6. The updated dataset is described in this study, containing three versions: CMST2.0 – Nrec, CMST2.0 – Imax, and CMST2.0 – Imin. The reconstructed datasets significantly improve data coverage, especially in the high latitudes in the Northern Hemisphere, thus increasing the long-term trends at global, hemispheric, and regional scales since 1850.
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