Spatial Distribution of Multi-Fractal Scaling Behaviours of Atmospheric XCO 2 Concentration Time Series during 2010–2018 over China
In: Entropy, Vol 24, Iss 817, Jg. 24 (2022), Heft 817, p 817
Online
academicJournal
Zugriff:
Exploring the spatial distribution of the multi-fractal scaling behaviours in atmospheric CO 2 concentration time series is useful for understanding the dynamic mechanisms of carbon emission and absorption. In this work, we utilise a well-established multi-fractal detrended fluctuation analysis to examine the multi-fractal scaling behaviour of a column-averaged dry-air mole fraction of carbon dioxide (XCO 2 ) concentration time series over China, and portray the spatial distribution of the multi-fractal scaling behaviour. As XCO 2 data values from the Greenhouse Gases Observing Satellite (GOSAT) are insufficient, a spatio-temporal thin plate spline interpolation method is applied. The results show that XCO 2 concentration records over almost all of China exhibit a multi-fractal nature. Two types of multi-fractal sources are detected. One is long-range correlations, and the other is both long-range correlations and a broad probability density function; these are mainly distributed in southern and northern China, respectively. The atmospheric temperature and carbon emission/absorption are two possible external factors influencing the multi-fractality of the atmospheric XCO 2 concentration. Highlight : (1) An XCO 2 concentration interpolation is conducted using a spatio-temporal thin plate spline method. (2) The spatial distribution of the multi-fractality of XCO 2 concentration over China is shown. (3) Multi-fractal sources and two external factors affecting multi-fractality are analysed.
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Spatial Distribution of Multi-Fractal Scaling Behaviours of Atmospheric XCO 2 Concentration Time Series during 2010–2018 over China
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Autor/in / Beteiligte Person: | Ma, Yiran ; He, Xinyi ; Wu, Rui ; Shen, Chenhua |
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Zeitschrift: | Entropy, Vol 24, Iss 817, Jg. 24 (2022), Heft 817, p 817 |
Veröffentlichung: | MDPI AG, 2022 |
Medientyp: | academicJournal |
ISSN: | 1099-4300 (print) |
DOI: | 10.3390/e24060817 |
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