Estimation of the aerosol optical thickness distribution in the Northeast Asian forest fire episode in May 2003: Possible missing emissions

Hee Jin In, Yong Pyo Kim

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9 Scopus citations


During the study of the enhancement of aerosol optical thickness (AOT) which was derived by Community Multi-scale Air Quality (CMAQ) model for an active forest fire episode in Northeast Asia for May 2003 (In et al., 2009), it was found that CMAQ underestimated and overestimated AOT sporadically compared to the multiple satellite observations. Based on the AERONET surface AOT observation result, the WMO Global Telecommunications System (GTS) SYNOP system smoke/fire reports, and surface aerosol concentration data in Korea, it was found that these errors were resulted from missing of biomass burning emissions and coarse aerosols originating from soil. An inconsistency between surface observed and CMAQ estimate AOT and MODIS hot spot detects was found, which suggests that accuracy of MODIS fire products needs to be assessed in East Russian, China, and Korea in order to utilize them for national scale fire management in the region. The implement of origin and transport process of wind blown dust in current CMAQ is necessary to extend CMAQ capability in Northeast Asia.

Original languageEnglish
Pages (from-to)261-273
Number of pages13
JournalAtmospheric Research
Issue number2-4
StatePublished - Nov 2010

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2010-0008005 and No. 2010-0001898 ). We thank Korean Meteorological Administration and Ministry of Environment, Korea for providing the surface aerosol data, Prof. S.-M. Yi at Seoul National University for providing fine particle chemical composition data, AERONET program investigators and staffs for establishing and maintaining the sites used in this investigation, and the NOAA Air Resources Laboratory (ARL) for the provision of the HYSPLIT transport and dispersion model. NASA and KNMI are acknowledged for providing the satellite data used in this study.


  • Aerosol concentrations
  • CMAQ model
  • Missing emissions
  • Russian forest fire
  • Satellite fire product


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