Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2017.04.029 |
Geochemical and stable isotope characteristics of urban heavy rain in the downtown of Tokyo, Japan | |
Uchiyama, Ryunosuke; Okochi, Hiroshi; Ogata, Hiroko; Katsumi, Naoya; Asai, Daisuke; Nakano, Takanori | |
2017-09-15 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2017 |
卷号 | 194 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | In order to make clear the impact of air pollution on the formation of sudden and locally-distributed heavy rain in urban area (hereafter Urban Heavy Rain: UHR), we analyzed inorganic ion concentration and stable isotope ratio of water (delta D and delta O-18) in rainwater. Rainwater samples were collected in Shinjuku, which is a representative downtown of Tokyo, Japan, during four years from October 2012 to December 2015. The concentration and wet deposition fluxes of acidic components (H+, NH4+, NO3-, and nss-SO42-) in UHR were especially higher than those in other types of rain events, i.e. normal rain, typhoon heavy rain, and frontal heavy rain. UHR had distinctly lower stable isotope ratios than those in other urban rains with same rainfall amount and summer precipitation systems. There was a high negative correlation between delta O-18 and the distances from the sampling point to the formation area of UHR within 10 km, while there were high positive correlations between delta O-18 and the concentration of acidic components in UHR. These findings indicate that UHR could effectively scavenge acidic substances within cloud and suggest the use of stable isotope ratios as tracers of an urban heavy rain's water and in-cloud scavenging process. |
英文关键词 | Heavy rain Stable isotopes Urban heat island Air pollutants Acidic substances, anthropogenic |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405043700009 |
WOS关键词 | PRECIPITATION ; SUMMER ; AEROSOLS ; IMPACTS |
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/38213 |
专题 | 地球科学 |
作者单位 | Waseda Univ, Grad Sch Creat Sci & Engn, Shinjuku Ku, Okubo 3-4-1, Tokyo 1698555, Japan |
推荐引用方式 GB/T 7714 | Uchiyama, Ryunosuke,Okochi, Hiroshi,Ogata, Hiroko,et al. Geochemical and stable isotope characteristics of urban heavy rain in the downtown of Tokyo, Japan[J]. ATMOSPHERIC RESEARCH,2017,194. |
APA | Uchiyama, Ryunosuke,Okochi, Hiroshi,Ogata, Hiroko,Katsumi, Naoya,Asai, Daisuke,&Nakano, Takanori.(2017).Geochemical and stable isotope characteristics of urban heavy rain in the downtown of Tokyo, Japan.ATMOSPHERIC RESEARCH,194. |
MLA | Uchiyama, Ryunosuke,et al."Geochemical and stable isotope characteristics of urban heavy rain in the downtown of Tokyo, Japan".ATMOSPHERIC RESEARCH 194(2017). |
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