Next Article in Journal
The Role of Continental Mesoscale Convective Systems in Forecast Busts within Global Weather Prediction Systems
Previous Article in Journal
Parallel Comparison of Major Sudden Stratospheric Warming Events in CESM1-WACCM and CESM2-WACCM
Previous Article in Special Issue
Inverting the East Asian Dust Emission Fluxes Using the Ensemble Kalman Smoother and Himawari-8 AODs: A Case Study with WRF-Chem v3.5.1
Open AccessArticle

Dust Heterogeneous Reactions during Long-Range Transport of a Severe Dust Storm in May 2017 over East Asia

1
Research Institute for Applied Mechanics (RIAM), Kyushu University, Fukuoka 816-8580, Japan
2
State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics (IAP), Chinese Academy of Sciences (CAS), Beijing 100029, China
3
National Institute for Environmental Studies (NIES), Tsukuba, Ibaraki 305-8506, Japan
*
Author to whom correspondence should be addressed.
Atmosphere 2019, 10(11), 680; https://doi.org/10.3390/atmos10110680
Received: 14 September 2019 / Revised: 18 October 2019 / Accepted: 1 November 2019 / Published: 6 November 2019
(This article belongs to the Special Issue Soil/Mineral Dust Aerosols in the Earth System)
Dust aerosol has important climate and environmental effects, which could be changed by internally mixing with anthropogenic aerosol as a result of heterogeneous reactions; however, the importance of these reactions is not fully understood yet. In this study, synergetic observations and an air quality model were used to analyze the transport of a severe dust storm and its impacts on nitrate and sulfate levels over East Asia between 3 and 11 May 2017. The model successfully reproduced the occurrence and transport of the dust storm compared to dust RGB imageries of the Himawari-8 satellite and dust extinction coefficients observed by LIDAR. The model also reasonably simulated the variations of observed nitrate and sulfate concentrations, and the results indicated that the dust heterogeneous reactions were dominant pathways for nitrate formation, but they had limited contribution for sulfate in both fine and coarse mode in Fukuoka, Japan. Dust nitrate formed rapidly after leaving China, and the highest period-averaged concentration of dust nitrate (>5 μg m−3) was shown over the Yellow Sea. Based on model results; we found that the mass ratio of dust nitrate to dust aerosol could reach 10% over the Pacific Ocean. Our results confirmed the importance of heterogeneous reactions on compositions of dust particles. View Full-Text
Keywords: mineral dust; heterogeneous reaction; acid uptake; Himawari-8; LIDAR; NAQPMS mineral dust; heterogeneous reaction; acid uptake; Himawari-8; LIDAR; NAQPMS
Show Figures

Figure 1

MDPI and ACS Style

Wang, Z.; Uno, I.; Yumimoto, K.; Pan, X.; Chen, X.; Li, J.; Wang, Z.; Shimizu, A.; Sugimoto, N. Dust Heterogeneous Reactions during Long-Range Transport of a Severe Dust Storm in May 2017 over East Asia. Atmosphere 2019, 10, 680.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop