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- Title
西安地区降水稳定同位素变化特征及影响因素.
- Authors
王兴; 李王成; 董亚萍; 刘学智; 赵妍; 李晨; 王双涛
- Abstract
Based on the data of hydrogen and oxygen isotopes of meteoric water at GNIP site in Xi'an at the global atmospheric observation network, and combined with the actual meteorological data in the area, the composition of stable isotopes in precipitation in Xi'an area had been studied and analyzed, and the atmospheric water lowering equation in Xi'an area had been set up as δD=7.488δ18O+6.126. The difference of the distribution characteristics of the atmospheric falling water lines and the different effects of temperature, precipitation and vapor pressure on the stable isotopes of atmospheric precipitation were revealed. The results show that the stable isotopes of atmospheric precipitation in Xi'an area have a positive correlation with the temperature in the annual scale, and there is a negative correlation with the precipitation, and the δD is negatively correlated with water vapor pressure, while δ18O is positively correlated with water vapor pressure.
- Publication
Yellow River, 2020, Vol 42, Issue 1, p83
- ISSN
1000-1379
- Publication type
Article
- DOI
10.3969/j.issn.1000-1379.2020.01.016