Estimating fine particulates less than 2.5 microns in aerodynamic diameter (PM2.5) in Northeastern China: A model approach

  • Xiaoli Wei
  • , Runhe Shi*
  • , Wei Gao
  • , Deying Zhang
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Fine particulates less than 2.5 microns in aerodynamic diameter (PM2.5) has been widely considered to be one of the main pollutant threating human health. Ground-level PM2.5 monitoring can provide accurate point data, but its value is hard to scale up to large scale. In this respects, satellite data with large coverage areas and long term range, could enhance our ability to estimate PM2.5 concentration. In this study, a Multilinear correlation model (MLC) based on MODIS AOD level 2 data was developed to estimate PM2.5 concentration in Northeastern China from 2013-2016, then ground-level PM2.5monitoring data from 15 stations covering study area were used for validation. Results showed that 1) the annual PM2.5 is 63.98μg/m2, AOD values agreed well with estimated PM2.5 concentration, 2) the spatial variations of PM2.5 were not clear, while the temporal dynamic of PM2.5 were observed, the highest values were observed in winter, opposite to what were observed in fall. 3) the MLC model coupled with meteorological data could improve the precision of PM2.5 estimations. Therefore, we suggest that the developed MLC model is useful for the PM2.5 estimations in northeastern China.

Original languageEnglish
Title of host publicationRemote Sensing and Modeling of Ecosystems for Sustainability XIV
EditorsWei Gao, Ni-Bin Chang, Jinnian Wang
PublisherSPIE
ISBN (Electronic)9781510612679
DOIs
StatePublished - 2017
EventRemote Sensing and Modeling of Ecosystems for Sustainability XIV 2017 - San Diego, United States
Duration: 9 Aug 2017 → …

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10405
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceRemote Sensing and Modeling of Ecosystems for Sustainability XIV 2017
Country/TerritoryUnited States
CitySan Diego
Period9/08/17 → …

Keywords

  • Aerosol optical depth
  • MODIS-Aqua
  • Multilinear correlation model
  • Northeastern China
  • PM 2.5 concentration

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