Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD030641 |
The Impact of the Direct Effect of Aerosols on Meteorology and Air Quality Using Aerosol Optical Depth Assimilation During the KORUS-AQ Campaign | |
Jung, Jia1; Souri, Amir H.2; Wong, David C.3; Lee, Sojin1; Jeon, Wonbae4; Kim, Jhoon5; Choi, Yunsoo1 | |
2019-07-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:14页码:8303-8319 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; South Korea |
英文摘要 | To quantify the impact of the direct aerosol effect accurately, this study incorporated the Geostationary Ocean Color Imager (GOCI) aerosol optical depth (AOD) into a coupled meteorology-chemistry model. We designed three model simulations to observe the impact of AOD assimilation and aerosol feedback during the KORUS-AQ campaign (May-June 2016). By assimilating the GOCI AOD with high temporal and spatial resolutions, we improve the statistics from the comparison AOD and AERONET data (root-mean-square error: 0.12, R:0.77, index of agreement: 0.69, mean-absolute error: 0.08). The inclusion of the direct effect of aerosols produces the best model performance (root-mean-square error: 0.10, R:0.86, index of agreement: 0.72, mean-absolute error: 0.07). AOD values increased as much as 0.15, which is associated with an average reduction in solar radiation of -31.39 W/m(2), a planetary boundary layer height (-104.70 m), an air temperature (-0.58 degrees C), and a surface wind speed (-0.07 m/s) over land. In addition, concentrations of major gaseous and particulate pollutants at the surface (SO2, NO2, NH3, SO42-, NO3-, NH4+, and PM2.5) increase by 7.87-34%, while OH concentration decreases by -4.58%. Changes in meteorology and air quality appear to be more significant in high-aerosol loading areas. The integrated process rate analysis shows decelerated vertical transport, resulting in an accumulation of air pollutants near the surface and the amount of nitrate, which is higher than that of sulfate because of its response to reduced temperature. We conclude that constraining aerosol concentrations using geostationary satellite data is a prerequisite for quantifying the impact of aerosols on meteorology and air quality. |
英文关键词 | aerosol direct effect AOD GOCI data assimilation KORUS-AQ |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000481444200047 |
WOS关键词 | ATMOSPHERIC BOUNDARY-LAYER ; NONLOCAL CLOSURE-MODEL ; LAND-SURFACE MODEL ; EAST-ASIA ; OPTIMAL INTERPOLATION ; TROPOSPHERIC OZONE ; EMISSION INVENTORY ; PART II ; PM2.5 ; GOCI |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/185261 |
专题 | 气候变化 |
作者单位 | 1.Univ Houston, Dept Earth & Atmospher Sci, Houston, TX 77004 USA; 2.Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA; 3.US EPA, Res Triangle Pk, NC 27711 USA; 4.Pusan Natl Univ, Inst Environm Studies, Busan, South Korea; 5.Yonsei Univ, Dept Atmospher Sci, Seoul, South Korea |
推荐引用方式 GB/T 7714 | Jung, Jia,Souri, Amir H.,Wong, David C.,et al. The Impact of the Direct Effect of Aerosols on Meteorology and Air Quality Using Aerosol Optical Depth Assimilation During the KORUS-AQ Campaign[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(14):8303-8319. |
APA | Jung, Jia.,Souri, Amir H..,Wong, David C..,Lee, Sojin.,Jeon, Wonbae.,...&Choi, Yunsoo.(2019).The Impact of the Direct Effect of Aerosols on Meteorology and Air Quality Using Aerosol Optical Depth Assimilation During the KORUS-AQ Campaign.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(14),8303-8319. |
MLA | Jung, Jia,et al."The Impact of the Direct Effect of Aerosols on Meteorology and Air Quality Using Aerosol Optical Depth Assimilation During the KORUS-AQ Campaign".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.14(2019):8303-8319. |
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