R/S analysis based study on long memory about CODMn in Poyang Lake Inlet and Outlet

International Conference on Energy Engineering and Environmental Protection 2017

能源学;生态环境科学

Wang, Lili^1,2

Jiangxi Province Key Laboratory for Water Information Cooperative Sensing and Intelligent Processing, Nanchang Institute of Technology, Nanchang Jiangxi

330099, China^1

School of Science, Nanchang Institute of Technology, Nanchang Jiangxi

330099, China^2

关键词: Behavior analysis;    Boundary points;    Lake water quality;    Po-yang lakes;    Rescaled range analysis;    Scale invariance;    Self-organized criticality;    Two-power laws;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/121/2/022040/pdf
DOI  :  10.1088/1755-1315/121/2/022040

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Rescaled range analysis (R/S) is applied to the long memory behavior analysis of water CODMn series in Poyang Lake Inlet and Outlet in China. The results show that these CODMn series are characterized by long memory, and the characteristics have obvious differences between the Lake Inlet and Outlet. Our findings suggest that there was an obvious scale invariance, namely CODMn series in Lake Inlet for 13 weeks and CODMn in Lake Outlet for 17 weeks. Both displayed a two-power-law distribution and a similar high long memory. We made a preliminary explanation for the existence of the boundary point tc, using self-organized criticality. This work can be helpful to improvement of modelling of lake water quality.