The Assessment of Global Surface Temperature Change from 1850s:The C-LSAT2.0 Ensemble and the CMST-Interim Datasets

作     者：Wenbin SUN Qingxiang LI Boyin HUANG Jiayi CHENG Zhaoyang SONG Haiyan LI Wenjie DONG Panmao ZHAI Phil JONES Wenbin SUN;Qingxiang LI;Boyin HUANG;Jiayi CHENG;Zhaoyang SONG;Haiyan LI;Wenjie DONG;Panmao ZHAI;Phil JONES

作者机构：School of Atmospheric Sciences and Key Laboratory of Tropical Atmosphere−Ocean SystemMinistry of EducationZhuhai 519082China National Centers for Environmental InformationNOAAAshevilleNC 28801USA Chinese Academy of Meteorological SciencesCMABeijing 100081China Climatic Research UnitUniversity of East AngliaNorwich NR47TJUK Southern Laboratory of Ocean Science and Engineering(Guangdong Zhuhai)Zhuhai 519082China 

出 版 物：《Advances in Atmospheric Sciences》 (大气科学进展（英文版）)

年 卷 期：2021年第38卷第5期

页      面：875-888页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：国家自然科学基金 the National Key R&D Program of China 

主　　题：C-LSAT2.0 ensemble datasets CMST-Interim EOTs high-and low-frequency components reconstruction 

摘      要：Based on C-LSAT2.0,using high-and low-frequency components reconstruction methods,combined with observation constraint masking,a reconstructed C-LSAT2.0 with 756 ensemble members from the 1850s to 2018 has been *** ensemble versions have been merged with the ERSSTv5 ensemble dataset,and an upgraded version of the CMSTInterim dataset with 5°×5°resolution has been *** CMST-Interim dataset has significantly improved the coverage rate of global surface temperature *** reconstruction,the data coverage before 1950 increased from 78%−81%of the original CMST to 81%−89%.The total coverage after 1955 reached about 93%,including more than 98%in the Northern Hemisphere and 81%−89%in the Southern *** the reconstruction ensemble experiments with different parameters,a good basis is provided for more systematic uncertainty assessment of C-LSAT2.0 and *** comparison with the original CMST,the global mean surface temperatures are estimated to be cooler in the second half of 19th century and warmer during the 21st century,which shows that the global warming trend is further *** global warming trends are updated from 0.085±0.004℃(10 yr)^(–1)and 0.128±0.006℃(10 yr)^(–1)to 0.089±0.004℃(10 yr)^(–1)and 0.137±0.007℃(10 yr)^(–1),respectively,since the start and the second half of 20th century.