气候变化领域集成服务门户(CCPortal): Spatiotemporal Characteristics and Propagation of Summer Extreme Precipitation Events Over United States: A Complex Network Analysis

CCPortal

DOI	10.1029/2020GL088185
	Spatiotemporal Characteristics and Propagation of Summer Extreme Precipitation Events Over United States: A Complex Network Analysis
	Mondal S.; Mishra A.K.; Leung L.R.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:15
英文摘要	Complex network (CN) is a graph theory-based depiction of relation shared by various elements of a complex dynamical system such as the atmosphere. Here we apply the concept of CN to understand the directionality and topological structure of summer extreme precipitation events (SEPEs) over the conterminous United States (CONUS). The SEPEs are calculated based on the 95th percentile daily rainfall at 0.5° × 0.5° spatial resolution for CONUS to investigate the multidimensional characteristics of precipitation extremes. The derived CN coefficients (e.g., betweenness centrality, clustering coefficient, orientation, and network divergence) reveal important structural and dynamical information about the topology of the SEPEs and improve understanding of the dominant meteorological patterns. The initiation and propagation of SEPEs from the source zones to the sink zones are identified. The SEPEs are influenced by topography, dominant wind patterns, and moisture sources in terms of their topological structure and spatial dynamics. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Complex networks; Dynamical systems; Graph theory; Topography; Betweenness centrality; Clustering coefficient; Complex dynamical systems; Extreme precipitation events; Initiation and propagation; Meteorological patterns; Precipitation extremes; Spatiotemporal characteristics; Precipitation (meteorology); extreme event; network analysis; precipitation intensity; spatiotemporal analysis; summer; United States
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169986
作者单位	Glenn Department of Civil Engineering, Clemson University, Clemson, SC, United States; Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, United States
推荐引用方式 GB/T 7714	Mondal S.,Mishra A.K.,Leung L.R.. Spatiotemporal Characteristics and Propagation of Summer Extreme Precipitation Events Over United States: A Complex Network Analysis[J],2020,47(15).
APA	Mondal S.,Mishra A.K.,&Leung L.R..(2020).Spatiotemporal Characteristics and Propagation of Summer Extreme Precipitation Events Over United States: A Complex Network Analysis.Geophysical Research Letters,47(15).
MLA	Mondal S.,et al."Spatiotemporal Characteristics and Propagation of Summer Extreme Precipitation Events Over United States: A Complex Network Analysis".Geophysical Research Letters 47.15(2020).