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| 论文题目: |
Water vapor and precipitation isotope ratios in Beijing, China |
| 英文论文题目: |
Water vapor and precipitation isotope ratios in Beijing, China |
| 第一作者: |
温学发,张世春,孙晓敏 |
| 英文第一作者: |
Xue-Fa Wen,Shi-Chun Zhang,Xiao-Min Sun etc. |
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| 发表年度: |
2010 |
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| 英文摘要: |
The objective of this study is to investigate the characteristics of dD, d18O, and deuterium excess (d) of precipitation and water vapor in surface air in Beijing, China. The dD, d18O, and d of atmospheric water vapor in surface air were measured continuously with an in situ technique. Much less day-to-day and diurnal variations in the vapor isotopic contents were observed in the summer monsoon season (June–August) than in the rest of the year. Outside the monsoon season, the vapor dD and d18O showed a log linear dependence on the vapor mixing ratio, and d showed a negative correlation with the local relative humidity (RH). Both relationships were statistically significant. The vapor mixing ratio and RH were poor predictors of the vapor isotopic temporal variability during the peak summer monsoon activities. In addition, an analysis was presented of the interaction of the isotopic exchange between the vapor and the condensed phase. The dD and d18O departure from the equilibrium state was positively correlated with RH, and the d departure from the equilibrium state was negatively correlated with RH. |
| 刊物名称: |
Journal of Geophysical Research |
| 英文刊物名称: |
Journal of Geophysical Research |
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| 影响因子: |
3.147 |
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| 论文类别: |
SCI |
| 英文论文类别: |
SCI |
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| 论文下载: |
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