Research Papers

Suspended particulate matter sampling at an urban AERONET site in Japan, part 2: relationship between column aerosol optical thickness and PM2.5 concentration

[+] Author Affiliations
Itaru Sano

Kinki University, Faculty of Science and Technology, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502 Japan

Makiko Mukai

University of Tokyo, Center for Climate System Research, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8568 Japan

Nobukazu Iguchi, Sonoyo Mukai

Kinki University, Faculty of Science and Technology, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502 Japan

J. Appl. Remote Sens. 4(1), 043504 (February 1, 2010). doi:10.1117/1.3327930
History: Received October 7, 2007; Revised December 3, 2009; Accepted January 26, 2010; February 1, 2010; February 22, 2010; Online February 01, 2010
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Abstract

The concentration of suspended particulate matter smaller than 2.5 μm (PM2.5) was linearly correlated with the column aerosol optical thickness (AOT) based on simultaneous measurements at a NASA/AERONET station at Kinki University Campus, Higashi-Osaka, Japan, between March 2004 and June 2006. The correlation coefficient differed with the aerosol type, being maximal when PM2.5 values were measured 120 minutes after AOT data for a dust episode, but almost independent of the time difference between measurements for anthropogenic aerosols. The obtained results were validated using data obtained at the Higashi-Osaka and Noto sites. Our results suggest that the PM2.5 mass concentration can be estimated from the AOT, and vice versa, and hence a distribution map of PM2.5 can be produced from the satellite-derived AOT map determined from the Aqua/MODIS sensor.

© 2010 Society of Photo-Optical Instrumentation Engineers

Topics

Aerosols

Citation

Itaru Sano ; Makiko Mukai ; Nobukazu Iguchi and Sonoyo Mukai
"Suspended particulate matter sampling at an urban AERONET site in Japan, part 2: relationship between column aerosol optical thickness and PM2.5 concentration", J. Appl. Remote Sens. 4(1), 043504 (February 1, 2010). ; http://dx.doi.org/10.1117/1.3327930


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