SOLA
Online ISSN : 1349-6476
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Simultaneous Dust and Pollutant Transport over East Asia: The Tripartite Environment Ministers Meeting March 2014 Case Study
Itsushi UnoKeiya YumimotoXiaole PanZhe WangKazuo OsadaSyuichi ItahashiShigekazu Yamamoto
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Volume 13 (2017) Pages 47-52

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Abstract

Heavy dust storms that occurred between 13 and 23 March 2014 were selected for analysis as a case study of dust and sand storm events by the Tripartite Environment Ministers Meeting. During this period, two dust and anthropogenic aerosol events were observed and analyzed. The GEOS-Chem chemical transport model, which includes dust-acid uptake processes, successfully reproduced the aerosol variations and explained the Asian-scale dust-pollutant transport processes. Our results confirmed the importance of coarse-mode dust-nitrate as evidence of ‘polluted dust’ pollution. The model analysis showed that the formation of dust-nitrate occurred over the Yellow Sea and East China Sea before arriving in Japan. We showed that more than 40% of nitrate exists in dust-nitrate when air mass arrived in Japan.

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© 2017 by the Meteorological Society of Japan
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