Spatial Variation in CO_(2) Concentration Improves the Simulated Surface Air Temperature Increase in the Northern Hemisphere

作     者：Jing PENG Li DAN Xiba TANG Jing PENG;Li DAN;Xiba TANG

作者机构：CAS Key Laboratory of Regional Climate-Environment for Temperate East AsiaInstitute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Laboratory of Cloud-Precipitation Physics and Severe Storms(LACS)Institute of Atmospheric PhysicsBeijing 100029China 

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

年 卷 期：2024年第41卷第8期

页      面：1614-1628,1676-1685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：the National Natural Science Foundation of China (Grant Nos.42175142 42141017 and 41975112) for supporting our study 

主　　题：spatial variations of CO_(2) surface air temperature Earth system model land surface albedo leaf area index 

摘      要：The increasing concentration of atmospheric CO_(2) since the Industrial Revolution has affected surface air ***,the impact of the spatial distribution of atmospheric CO_(2) concentration on surface air temperature biases remains highly *** incorporating the spatial distribution of satellite-derived atmospheric CO_(2) concentration in the Beijing Normal University Earth System Model,this study investigated the increase in surface air temperature since the Industrial Revolution in the Northern Hemisphere(NH) under historical conditions from *** comparison with the increase in surface temperature simulated using a uniform distribution of CO_(2),simulation with a nonuniform distribution of CO_(2)produced better agreement with the Climatic Research Unit(CRU) data in the NH under the historical condition relative to the baseline over the period *** June-July-August(JJA) surface air temperature increased by 1.28℃ ±0.29℃ in simulations with a uniform distribution of CO_(2),by 1.00℃±0.24℃ in simulations with a non-uniform distribution of CO_(2),and by 0.24℃ in the CRU *** decrease in downward shortwave radiation in the non-uniform CO_(2) simulation was primarily attributable to reduced warming in Eurasia,combined with feedbacks resulting from increased leaf area index(LAI) and latent heat *** effects were more pronounced in the non-uniform CO_(2)simulation compared to the uniform CO_(2) *** indicate that consideration of the spatial distribution of CO_(2)concentration can reduce the overestimated increase in surface air temperature simulated by Earth system models.