Retrieval of aerosol optical depth over the Yangtze River Delta with HJ-1 data

  • Lu Zhang
  • , Runhe Shi*
  • , Yongming Xu
  • , Long Li
  • , Wei Gao
  • *Corresponding author for this work

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

Abstract

Aerosol optical depth (AOD) is a key indicator of atmospheric environment. Aerosol remote sensing is the most efficient way to obtain the temporal and spatial distributions of AOD. In this paper, the data from Environment Satellite (HJ-1) CCD camera were employed to retrieve AOD by using deep blue algorithm over the Yangtze River Delta. The third band (in blue) was firstly extracted from the MODIS land surface reflectance product (MOD09) and then converted to the first band of CCD/HJ-1. According to the characteristics of the study area and CCD data, a multi-dimension look up table was then built by the Second Simulation of the Satellite Signal in the Solar Spectrum (6S). AOD over the Yangtze River Delta were finally retrieved from the radiance of the first band of CCD/HJ-1. After the retrieved AOD were validated by the MODIS AOD product (MOD04), the correlation coefficient (R) is 0.64 by regression of all cloud screened pixels (1147). The retrieved AOD has a higher spatial resolution than the MODIS AOD and thus can provide more detailed information. Compared with the AERONET ground observation data, the retrieved AOD is closer to the ground-based data than the MODIS AOD.

Original languageEnglish
Title of host publicationRemote Sensing and Modeling of Ecosystems for Sustainability XI
EditorsJinnian Wang, Ni-Bin Chang, Wei Gao
PublisherSPIE
ISBN (Electronic)9781628412482
DOIs
StatePublished - 2014
EventRemote Sensing and Modeling of Ecosystems for Sustainability XI - San Diego, United States
Duration: 18 Aug 201420 Aug 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9221
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceRemote Sensing and Modeling of Ecosystems for Sustainability XI
Country/TerritoryUnited States
CitySan Diego
Period18/08/1420/08/14

Keywords

  • Aerosol optical depth
  • HJ-1 satellite
  • Surface reflectance
  • Yangtze river delta

Fingerprint

Dive into the research topics of 'Retrieval of aerosol optical depth over the Yangtze River Delta with HJ-1 data'. Together they form a unique fingerprint.

Cite this