Next Article in Journal
Source Apportionment of PM2.5 in Guangzhou Based on an Approach of Combining Positive Matrix Factorization with the Bayesian Mixing Model and Radiocarbon
Previous Article in Journal
Air Quality in Brno City Parks
Open AccessArticle

Model Performance Differences in Fine-Mode Nitrate Aerosol during Wintertime over Japan in the J-STREAM Model Inter-Comparison Study

1
Central Research Institute of Electric Power Industry, Abiko, Chiba 270-1194, Japan
2
Graduate School of Maritime Sciences, Kobe University, Kobe, Hyogo 658-0022, Japan
3
National Institute for Environmental Studies, Tsukuba, Ibaraki 305-8506, Japan
4
Faculty of Agriculture, Ehime University, Matsuyama, Ehime 790-8566, Japan
5
Japan Agency for Marine–Earth Science and Technology, Yokohama, Kanagawa 236-0001, Japan
6
Japan Automobile Research Institute, Tsukuba, Ibaraki 305-0822, Japan
7
Japan Meteorological Corporation, Osaka, Osaka 556-0021, Japan
8
Japan Weather Association, Toshima, Tokyo 170-6055, Japan
9
Kanagawa Environmental Research Center, Hiratsuka, Kanagawa 254-0014, Japan
10
School of Science and Engineering, Meisei University, Hino, Tokyo 191-8506, Japan
11
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
12
Suuri–Keikaku, Chiyoda, Tokyo 101-0003, Japan
13
Global Center for Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555, Japan
*
Author to whom correspondence should be addressed.
Atmosphere 2020, 11(5), 511; https://doi.org/10.3390/atmos11050511
Received: 8 April 2020 / Revised: 6 May 2020 / Accepted: 13 May 2020 / Published: 15 May 2020
(This article belongs to the Special Issue Regional Air Quality Modeling)
In this study, the results for nitrate (NO3) aerosol during winter from the first-phase model inter-comparison study of Japan’s Study for Reference Air Quality Modeling (J-STREAM) were analyzed. To investigate the models’ external and internal settings, the results were limited to Community Multiscale Air Quality (CMAQ) models. All submitted models generally underestimated NO3 over the urban areas in Japan (e.g., Osaka, Nagoya, and Tokyo); however, some model settings showed distinct behavior. The differences due to the model external settings were larger than the model internal settings. Emissions were an important factor, and emissions configured with lower NOx emissions and higher NH3 emissions led to a higher NO3 concentration as the NH3 was consumed under NH3-rich conditions. The model internal settings of the chemical mechanisms caused differences over China, and this could affect western Japan; however, the difference over Tokyo was lower. To obtain a higher NO3 concentration over the urban areas in Japan, the selection of the HONO option for the heterogenous reaction and the inline calculation of photolysis was desired. For future studies, the external settings of the boundary condition and the meteorological field require further investigation. View Full-Text
Keywords: model inter-comparison study; Japan; CMAQ; NO3; HONO heterogenous reaction; inline photolysis calculation model inter-comparison study; Japan; CMAQ; NO3; HONO heterogenous reaction; inline photolysis calculation
Show Figures

Figure 1

MDPI and ACS Style

Itahashi, S.; Yamaji, K.; Chatani, S.; Kitayama, K.; Morino, Y.; Nagashima, T.; Saito, M.; Takigawa, M.; Morikawa, T.; Kanda, I.; Miya, Y.; Komatsu, H.; Sakurai, T.; Shimadera, H.; Uranishi, K.; Fujiwara, Y.; Hashimoto, T.; Hayami, H. Model Performance Differences in Fine-Mode Nitrate Aerosol during Wintertime over Japan in the J-STREAM Model Inter-Comparison Study. Atmosphere 2020, 11, 511.

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
Search more from Scilit
 
Search
Back to TopTop