Dust Acid Uptake Analysis during Long-Lasting Dust and Pollution Episodes over East Asia Based on Synergetic Observation and Chemical Transport Model
Dust Acid Uptake Analysis during Long-Lasting Dust and Pollution Episodes over East Asia Based on Synergetic Observation and Chemical Transport Model
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DOI：
10.2151/sola.2017-020
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发表时间：
2017
期刊：
影响因子：
1.9
通讯作者：
I. Uno;K. Yumimoto;K. Osada;Zhe Wang;Xiaole Pan;S. Itahashi;Shigekazu Yamamoto
中科院分区：
文献类型：
--
作者：
I. Uno;K. Yumimoto;K. Osada;Zhe Wang;Xiaole Pan;S. Itahashi;Shigekazu Yamamoto
2014年5月24日至26日期间在蒙古和中国内蒙古发生的两次强沙尘暴导致了2014年5月26日至6月2日在日本福冈观察到的长期沙尘天气。在此期间，灰尘和人为污染物同时输送到福冈和韩国，并在那里停留了近8天。我们在福冈成功观测到了细气和粗气溶胶的时间变化（1小时间隔）。 GEOS-Chem化学传输模型包括尘酸吸收过程，成功地再现了气溶胶变化，并解释了亚洲范围内的尘埃污染物传输和转化过程。有和没有尘酸吸收过程的模型敏感性分析表明，尘埃硝酸盐的形成发生在黄海和东海，然后到达日本。模型敏感性分析表明，不到5%的粗粉尘硝酸盐源自日本的NOx排放，大量粉尘硝酸盐源自日本以外。 （引文：Uno, I.、K. Yumimoto、K. Osada、Z. Wang、X. Pan、S. Itahashi 和 S. Yamamoto，2017 年：基于协同观测和化学输运模型的东亚长期粉尘和污染事件期间的粉尘酸吸收分析。SOLA，13 109−113，
Two heavy dust storms that occurred between 24−26 May 2014 in Mongolia and Inner Mongolia, China were responsible for long-lasting dust episodes observed from 26 May to 2 June 2014 in Fukuoka, Japan. During this period, dust and anthropogenic pollutants were transported simultaneously to Fukuoka and Korea and remained there for almost 8 days. We successfully observed fine and coarse aerosol time variations (1-hour intervals) in Fukuoka. 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 and transformation processes. Model sensitivity analyses with and without dust-acid uptake processes showed that the formation of dust-nitrate occurred over the Yellow Sea and East China Sea before arriving in Japan. The model sensitivity analysis showed that less than 5% of the coarse dust-nitrate originated from NOx emissions from Japan, and large amounts of dust-nitrate originated outside of Japan. ( Citation : Uno, I., K. Yumimoto, K. Osada, Z. Wang, X. Pan, S. Itahashi, and S. Yamamoto, 2017: Dust acid uptake analysis during long-lasting dust and pollution episodes over East Asia based on synergetic observation and chemical transport model. SOLA , 13 109−113,