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Article

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
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National Institute for Environmental Studies, Tsukuba, Ibaraki 305-8506, Japan
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Faculty of Agriculture, Ehime University, Matsuyama, Ehime 790-8566, Japan
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Japan Agency for Marine–Earth Science and Technology, Yokohama, Kanagawa 236-0001, Japan
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Japan Automobile Research Institute, Tsukuba, Ibaraki 305-0822, Japan
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Japan Meteorological Corporation, Osaka, Osaka 556-0021, Japan
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Japan Weather Association, Toshima, Tokyo 170-6055, Japan
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Kanagawa Environmental Research Center, Hiratsuka, Kanagawa 254-0014, Japan
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School of Science and Engineering, Meisei University, Hino, Tokyo 191-8506, Japan
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Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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Suuri–Keikaku, Chiyoda, Tokyo 101-0003, Japan
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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
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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. https://doi.org/10.3390/atmos11050511

AMA 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(5):511. https://doi.org/10.3390/atmos11050511

Chicago/Turabian Style

Itahashi, Syuichi, Kazuyo Yamaji, Satoru Chatani, Kyo Kitayama, Yu Morino, Tatsuya Nagashima, Masahiko Saito, Masayuki Takigawa, Tazuko Morikawa, Isao Kanda, Yukako Miya, Hiroaki Komatsu, Tatsuya Sakurai, Hikari Shimadera, Katsushige Uranishi, Yuzuru Fujiwara, Tomoaki Hashimoto, and Hiroshi Hayami. 2020. "Model Performance Differences in Fine-Mode Nitrate Aerosol during Wintertime over Japan in the J-STREAM Model Inter-Comparison Study" Atmosphere 11, no. 5: 511. https://doi.org/10.3390/atmos11050511

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