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A weighted higher-order network analysis of fine particulate matter (PM2.5) transport in Yangtze River Delta

Yufang Wang, Haiyan Wang and Shuhua Zhang

Physica A: Statistical Mechanics and its Applications, 2018, vol. 496, issue C, 654-662

Abstract: Specification of PM2.5 transmission characteristics is important for pollution control, policymaking and prediction. In this paper, we propose weights for motif instances, thereby to implement a weighted higher-order clustering algorithm for a weighted, directed PM2.5 network in the Yangtze River Delta (YRD) of China. The weighted, directed network we create in this paper includes information on meteorological conditions of wind speed and wind direction, plus data on geographic distance and PM2.5 concentrations. We aim to reveal PM2.5 mobility between cities in the YRD. Major potential PM2.5 contributors and closely interacted clusters are identified in the network of 178 air quality stations in the YRD. To our knowledge, it is the first work to incorporate weight information into the higher-order network analysis to study PM2.5 transport.

Keywords: PM2.5 transport; Weights for motif instances; Weighted higher-order clustering algorithm; Major potential PM2.5 contributors; Closely interacted clusters (search for similar items in EconPapers)
Date: 2018
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