Universität zu Köln

Sun, Yu, Meng, Jun, Yao, Qing, Saberi, Abbas Ali, Chen, Xiaosong ORCID: 0000-0001-9994-2011, Fan, Jingfang and Kurths, Juergen (2021). Percolation analysis of the atmospheric structure. Phys. Rev. E, 104 (6). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2470-0053

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Abstract

The atmosphere is a thermo-hydrodynamical complex system and provides oxygen to most animal life at the Earth's surface. However, the detection of complexity for the atmosphere remains elusive and debated. Here we develop a percolation-based framework to explore its structure by using the global air temperature field. We find that the percolation threshold is much delayed compared with the prototypical percolation model and the giant cluster eventually emerges explosively. A finite-size-scaling analysis reveals that the observed transition in each atmosphere layer is genuine discontinuous. Furthermore, at the percolation threshold, we uncover that the boundary of the giant cluster is self-affine, with fractal dimension d(f), and can be utilized to quantify the atmospheric complexity. Specifically, our results indicate that the complexity of the atmosphere decreases superlinearly with height, i.e., the complexity is higher at the surface than at the top layer and vice versa, due to the atmospheric boundary forcings. The proposed methodology may evaluate and improve our understanding regarding the critical phenomena of the complex Earth system and can be used as a benchmark tool to test the performance of Earth system models.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Sun, Yu UNSPECIFIED UNSPECIFIED UNSPECIFIED Meng, Jun UNSPECIFIED UNSPECIFIED UNSPECIFIED Yao, Qing UNSPECIFIED UNSPECIFIED UNSPECIFIED Saberi, Abbas Ali UNSPECIFIED UNSPECIFIED UNSPECIFIED Chen, Xiaosong UNSPECIFIED orcid.org/0000-0001-9994-2011 UNSPECIFIED Fan, Jingfang UNSPECIFIED UNSPECIFIED UNSPECIFIED Kurths, Juergen UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-593155
DOI:	10.1103/PhysRevE.104.064139
Journal or Publication Title:	Phys. Rev. E
Volume:	104
Number:	6
Date:	2021
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	2470-0053
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language TRANSITION; THRESHOLD; CLUSTER; NETWORK Multiple languages Physics, Fluids & Plasmas; Physics, Mathematical Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/59315