The evaluation of the applicability of MODIS AOD product in the lower and middle reaches of Yangtze River

Yunzhu Chen, Runhe Shi, Chaoshun Liu, Yuanyuan Chen, Wei Gao

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

1 Scopus citations

Abstract

As an index to estimate regional air quality, aerosol plays an important role in air pollution. MODIS has a fast access to a wide range of aerosol data, however, there is no guarantee for the accuracy of its AOD product in China. This paper attempts to evaluate the applicability of MODIS AOD product in the lower and middle reaches of Yangtze River supported by AERONET data from Lin'an, Taihu and Hefei sites. The author matched AERONET AOD within ±30 min of MODIS overpass times with MODIS AOD over one pixel-size centered on the AERONET site, then analyzed and evaluated the fitting results. The results indicated that MODIS AOD is well correlated with AERONET AOD from 2007 to 2008, except R 2 is about 0.55 in 0.66μm band at Taihu site. MODIS AOD is underestimated at Lin'an site, while overestimated at the others. Similarity exists in the quality of MODIS AOD between Terra and Aqua, and the estimation of AOD by Terra was higher than that by Aqua. MODIS AOD in 0.47μm band has an advantage over that in 0.66μm as far as product accuracy is concerned. All the year, MODIS AOD is the best in quality in spring at Taihu site.

Original languageEnglish
Title of host publicationRemote Sensing and Modeling of Ecosystems for Sustainability VIII
DOIs
StatePublished - 2011
EventRemote Sensing and Modeling of Ecosystems for Sustainability VIII - San Diego, CA, United States
Duration: 22 Aug 201123 Aug 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8156
ISSN (Print)0277-786X

Conference

ConferenceRemote Sensing and Modeling of Ecosystems for Sustainability VIII
Country/TerritoryUnited States
CitySan Diego, CA
Period22/08/1123/08/11

Keywords

  • AERONET
  • AOD
  • Evaluation of applicability
  • MODIS
  • The lower and middle reaches of Yangtze River

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