دورية أكاديمية
A two-way coupled regional urban–street network air quality model system for Beijing, China
| العنوان: | A two-way coupled regional urban–street network air quality model system for Beijing, China |
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| المؤلفون: | Wang, Tao, Liu, Hang, Li, Jie, Wang, Shuai, Kim, Youngseob, Sun, Yele, Yang, Wenyi, Du, Huiyun, Wang, Zhe, Wang, Zifa |
| بيانات النشر: | Copernicus Publications |
| سنة النشر: | 2023 |
| المجموعة: | Niedersächsisches Online-Archiv NOA (Gottfried Wilhelm Leibniz Bibliothek Hannover) |
| مصطلحات موضوعية: | article, Verlagsveröffentlichung |
| الوصف: | Owing to the substantial traffic emissions in urban areas, especially near road areas, the concentrations of pollutants, such as ozone (O3) and its precursors, have a large difference compared to regional averages, and their distributions cannot be captured accurately by traditional single-scale air quality models. In this study, a new version of a regional urban–street network model (an Integrated Air Quality Modeling System coupling regional urban–street: IAQMS-street v2.0) is presented. An upscaling module is implemented in IAQMS-street v2.0 to calculate the impact of mass transfer to regional scale from street network. The influence of pollutants in the street network is considered in the concentration calculation on the regional scale, which is not considered in a previous version (IAQMS-street v1.0). In this study, the simulated results in Beijing during August 2021, using IAQMS-street v2.0, IAQMS-street v1.0, and the regional model (Nested Air Quality Prediction Modeling System, NAQPMS), are compared. On-road traffic emissions in Beijing, as the key model input data, were established using intelligent image-recognition technology and real-time traffic big data from navigation applications. The simulated results showed that the O3 and nitrogen oxide (NOx) concentrations in Beijing were reproduced by using IAQMS-street v2.0 on both the regional scale and street scale. The prediction fractions within a factor of 2 (FAC2s) between simulations and observations of NO and NO2 increased from 0.11 and 0.34 in NAQPMS to 0.78 and 1.00 in IAQMS-street v2.0, respectively. The normalized mean biases (NMBs) of NO and NO2 decreased from 2.67 and 1.33 to −0.25 and 0.08. In the coupled model, the concentration of NOx at the street scale is higher than that at the regional scale, and the simulated distribution of pollutants on a regional scale was improved in IAQMS-street v2.0 when compared with that in IAQMS-street v1.0. We further used IAQMS-street v2.0 to quantify the contribution of local on-road traffic emissions to ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | electronic |
| اللغة: | English |
| العلاقة: | Geoscientific Model Development -- http://www.bibliothek.uni-regensburg.de/ezeit/?2456725Test -- http://www.geosci-model-dev.netTest/ -- 1991-9603; https://doi.org/10.5194/gmd-16-5585-2023Test; https://noa.gwlb.de/receive/cop_mods_00069213Test; https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00067606/gmd-16-5585-2023.pdfTest; https://gmd.copernicus.org/articles/16/5585/2023/gmd-16-5585-2023.pdfTest |
| DOI: | 10.5194/gmd-16-5585-2023 |
| الإتاحة: | https://doi.org/10.5194/gmd-16-5585-2023Test https://noa.gwlb.de/receive/cop_mods_00069213Test https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00067606/gmd-16-5585-2023.pdfTest https://gmd.copernicus.org/articles/16/5585/2023/gmd-16-5585-2023.pdfTest |
| حقوق: | https://creativecommons.org/licenses/by/4.0Test/ ; uneingeschränkt ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.5E4F3616 |
| قاعدة البيانات: | BASE |
| DOI: | 10.5194/gmd-16-5585-2023 |
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