气候变化领域集成服务门户(CCPortal): Using Seismic Noise Levels to Monitor Social Isolation: An Example From Rio de Janeiro; Brazil

CCPortal

DOI	10.1029/2020GL088748
	Using Seismic Noise Levels to Monitor Social Isolation: An Example From Rio de Janeiro; Brazil
	Dias F.L.; Assumpção M.; Peixoto P.S.; Bianchi M.B.; Collaço B.; Calhau J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:16
英文摘要	Decrease of seismic noise level, after reduction of traffic due to the COVID-19 pandemic, has been observed worldwide. The possibility of using seismic noise as another proxy to estimate social isolation was tested with a station within Rio de Janeiro city. We used the isolation index measured from smartphone movement to calibrate the seismic noise levels and estimated an Isolation Seismic Index, ISI (% of the population at home), using the seismic noise energy. Noise levels best correlate with isolation measures in the frequency range 4–8 Hz. Small differences between the smartphone and the ISI indexes are interpreted as differences in social activities and noise sources. All mobility indexes are proxies to the actual isolation. Although ISI does not measure the number of people outside, it measures the number of noise sources (vehicles, trains, factories, etc.) and can be used as additional information to interpret anomalies in other proxies. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Smartphones; Frequency ranges; Isolation indices; Noise levels; Noise source; Number of peoples; Seismic noise; Social activities; Social isolation; Seismology; data interpretation; epidemic; estimation method; frequency analysis; proxy climate record; seismic data; seismic noise; viral disease; Brazil; Rio de Janeiro [Brazil]
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/169909
作者单位	National Observatory, Rio de Janeiro, Brazil; Seismology Center, University of São Paulo, São Paulo, Brazil; Institute of Mathematics and Statistics, Department of Applied Mathematics, University of São Paulo, São Paulo, Brazil
推荐引用方式 GB/T 7714	Dias F.L.,Assumpção M.,Peixoto P.S.,et al. Using Seismic Noise Levels to Monitor Social Isolation: An Example From Rio de Janeiro; Brazil[J],2020,47(16).
APA	Dias F.L.,Assumpção M.,Peixoto P.S.,Bianchi M.B.,Collaço B.,&Calhau J..(2020).Using Seismic Noise Levels to Monitor Social Isolation: An Example From Rio de Janeiro; Brazil.Geophysical Research Letters,47(16).
MLA	Dias F.L.,et al."Using Seismic Noise Levels to Monitor Social Isolation: An Example From Rio de Janeiro; Brazil".Geophysical Research Letters 47.16(2020).