Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-20-5211-2020 |
An observational study of the effects of aerosols on diurnal variation of heavy rainfall and associated clouds over Beijing-Tianjin-Hebei | |
Zhou, Siyuan1,2; Yang, Jing1; Wang, Wei-Chyung2; Zhao, Chuanfeng3; Gong, Daoyi1; Shi, Peijun1 | |
2020-05-05 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2020 |
卷号 | 20期号:9页码:5211-5229 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Our previous study found that the observed rainfall diurnal variation over Beijing-Tianjin-Hebei shows the distinct signature of the effects of pollutants. Here we used the hourly rainfall data together with satellite-based daily information of aerosols and clouds to further investigate changes in heavy rainfall and clouds associated with aerosol changes. Because of the strong coupling effects, we also examined the sensitivity of these changes to moisture (specific humidity) variations. For heavy rainfall, three distinguished characteristics are identified: earlier start time, earlier peak time, and longer duration; and the signals are robust using aerosol indicators based on both aerosol optical depth and cloud droplet number concentration. In-depth analysis reveals that the first two characteristics occur in the presence of (absorbing) black carbon aerosols and that the third is related to more (scattering) sulfate aerosols and is sensitive to moisture abundance. Cloud changes are also evident, showing increases in cloud fraction, cloud top pressure, the liquid/ice cloud optical thickness and cloud water path and a decrease in ice cloud effective radius; and these changes are insensitive to moisture. Finally, the mechanisms for heavy rainfall characteristics are discussed and hypothesized. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000531821300001 |
WOS关键词 | DROPLET NUMBER CONCENTRATION ; CONDENSATION NUCLEI CCN ; DEEP CONVECTIVE CLOUDS ; AIR-POLLUTION ; OPTICAL DEPTH ; ANTHROPOGENIC AEROSOLS ; EFFECTIVE RADIUS ; PRECIPITATION ; SATELLITE ; CIRCULATION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
URL | 查看原文 |
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/248817 |
专题 | 地球科学 |
作者单位 | 1.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Key Lab Environm Change & Nat Disaster, Beijing, Peoples R China; 2.SUNY Albany, Atmospher Sci Res Ctr, Albany, NY 12203 USA; 3.Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Zhou, Siyuan,Yang, Jing,Wang, Wei-Chyung,et al. An observational study of the effects of aerosols on diurnal variation of heavy rainfall and associated clouds over Beijing-Tianjin-Hebei[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(9):5211-5229. |
APA | Zhou, Siyuan,Yang, Jing,Wang, Wei-Chyung,Zhao, Chuanfeng,Gong, Daoyi,&Shi, Peijun.(2020).An observational study of the effects of aerosols on diurnal variation of heavy rainfall and associated clouds over Beijing-Tianjin-Hebei.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(9),5211-5229. |
MLA | Zhou, Siyuan,et al."An observational study of the effects of aerosols on diurnal variation of heavy rainfall and associated clouds over Beijing-Tianjin-Hebei".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.9(2020):5211-5229. |
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