Cyclic variations of gas components in tree-ring chronologies as response to climatic cycles

International Conference and Early Career Scientists School on Environmental Observations, Modeling and Information Systems: ENVIROMIS-2018

生态环境科学;计算机科学

Sapozhnikova, V.A.^1 ; Ageev, B.G.^1 ; Gruzdev, A.N.^2 ; Ponomarev, Yu N^1

Federal State Budget Institution of Science, V.E. Zuev Institute of Atmospheric Optics, Siberian Branch of the Russian Academy of Sciences, Academician Zuev sq.1, Tomsk

634055, Russia^1

Federal State Budget Institution of Science, A.M. Obukhov Institute of Atmospheric Physics of the Russian Academy of Sciences, Pyzhevskii Lane 3, Moscow

119017, Russia^2

关键词: Climatic conditions;    Climatic cycles;    Conifer species;    Cross-spectral analysis;    Cyclic variations;    Gas component;    Solar activity;    Tree-ring chronologies;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/211/1/012039/pdf
DOI  :  10.1088/1755-1315/211/1/012039

来源: IOP

【 摘 要 】

Vacuum-extracted gas samples from tree-ring wood of stems and large roots of some conifer species (of Tomsk oblast) are studied using a photoacoustic laser gas analysis. The retrieved CO2, (CO2+H2O) chronologies are analyzed by spectral and cross-spectral analysis methods. A quasi-cyclic character of variations of the chronologies has been revealed, which is probably due to changes in climatic conditions and solar activity.