When Big Data Meets Big Smog: A Big Spatio-Temporal Data Framework for China Severe Smog Analysis

Jiaoyan Chen, Huajun Chen, Jeff Z. Pan, Ming Wu, Ningyu Zhang, Guozhou Zheng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recently, the appearing disaster of severe smog has been attacking many cities in China such as the capital Beijing. The chief culprit of China smog, namely PM2.5, is affected by various factors including air pollutants, weather, climate, geographical location, urbanization, etc. To analyze the factors, we collect about 35,000,000 air quality records and about 30,000,000 weather records from the sensors in 77 China's cities in 2013. Moreover, two big data sets named Geoname and DBPedia are also combined for the data of climate, geographical location and urbanization. To deal with big spatio-temporal data for big smog analysis, we propose a MapReduce-based framework named BigSmog. It mainly conducts parallel correlation analysis of the factors and scalable training of artificial neural networks for spatio-temporal approximation of the concentration of PM2.5. In the experiments, BigSmog displays high scalability for big smog analysis with big spatio-temporal data. The analysis result shows that the air pollutants influence the short-term concentration of PM2.5 more than the weather and the factors of geographical location and climate rather than urbanization play a major role in determining a city's long-term pollution level of PM2.5. Moreover, the trained ANNs can accurately approximate the concentration of PM2.5.
Original languageEnglish
Title of host publicationProceedings of the 2nd ACM SIGSPATIAL International Workshop on Analytics for Big Geospatial Data
EditorsVarun Chandola, Ranga Raju Vatsavai
Place of PublicationNew York, NY, USA
PublisherAssociation for Computing Machinery, Inc
Pages13–22
Number of pages10
ISBN (Print)9781450325349
DOIs
Publication statusPublished - 4 Nov 2013
Event2nd ACM SIGSPATIAL International Workshop on Analytics for Big Geospatial Data (BigSpatial) 2013 - Orlando, United States
Duration: 4 Nov 20134 Nov 2013
Conference number: 2

Publication series

NameBigSpatial '13
PublisherAssociation for Computing Machinery

Workshop

Workshop2nd ACM SIGSPATIAL International Workshop on Analytics for Big Geospatial Data (BigSpatial) 2013
Abbreviated titleBigSpatial 2013
Country/TerritoryUnited States
CityOrlando
Period4/11/134/11/13

Keywords

  • spatio-temporal
  • correlation analysis
  • MapReduce
  • China smog
  • artificial neural network
  • PM2.5

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