Time lag between changes in global temperature and atmospheric CO2 content under anthropogenic emissions of CO2 and CH4 into the atmosphere

Turbulence, Atmosphere and Climate Dynamics

生态环境科学

Muryshev, K.E.^1 ; Eliseev, A.V.^1^2^3 ; Denisov, S.N.^1 ; Mokhov, I.I.^1^2^4 ; Arzhanov, M.M.^1 ; Timazhev, A.V.^1

A.M. Obukhov Institute of Atmospheric Physics RAS, Moscow, Russia^1

M.V. Lomonosov Moscow State University, Moscow, Russia^2

Kazan Federal University, Kazan, Russia^3

Moscow Institute of Physics and Technology, State University, Dolgoprudny, Russia^4

关键词: Anthropogenic emissions;    Cause-and-effect relationships;    Earth systems;    Global temperatures;    Radiative forcings;    Time lag;    Time-scales;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/231/1/012039/pdf
DOI  :  10.1088/1755-1315/231/1/012039

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Previously, it was shown that the time lag between changes in global temperature T and atmospheric CO2 content q CO2 generally does not characterize cause-and-effect relationships in the Earth system. In particular, in the case of non-greenhouse radiative forcing the sign of this lag depends on the time scale of the forcing. In this paper, the time lag between changes in T and q CO2 under the external emissions of CO2 and CH4 into the atmosphere is studied. It was found that if the time scale of external emissions is large enough changes in q CO2 are lagging the corresponding changes in T, though the former is the main cause of the latter.