| 新德里季风降水中过量氘与季风水汽来源 |
| |
| 引用本文： | 庞洪喜,何元庆,张忠林.新德里季风降水中过量氘与季风水汽来源[J].冰川冻土,2005,27(6):876-880. |
| |
| 作者姓名： | 庞洪喜 何元庆 张忠林 |
| |
| 作者单位： | 1. 中国科学院, 寒区旱区环境与工程研究所冰冻圈与环境联合重点实验室, 甘肃, 兰州, 730000;2. 中国科学院, 青藏高原研究所, 北京, 100029 |
| |
| 基金项目： | 中国科学院资助项目
,
冰川冻土特殊学科人才培养项目
,
国家自然科学基金 |
| |
| 摘 要： | 收集和分析了新德里降水中同位素资料(δ18O和δD),利用季风水线方程对个别年份缺测的δD资料进行估计,建立了新德里36 a夏季过量氘序列.基于降水中过量氘和水汽源区相对湿度关系考虑,利用NCEP/NCAR再分析资料,研究了新德里夏季过量氘序列和水汽源区相对湿度的关系.研究发现,西阿拉伯海相对湿度变化和新德里季风降水中过量氘变化较为一致.结合西阿拉伯海风速和印度西北地区季风降水量资料分析结果,认为西阿拉伯海是新德里季风水汽的主要来源.
|
| 关 键 词： | 过量氘 相对湿度 水汽来源 |
| 文章编号： | 1000-0240(2005)06-0876-05 |
| 收稿时间： | 2005-06-08 |
| 修稿时间： | 2005年6月8日 |
Correlation between Deuterium Excess in Monsoon Precipitation of New Delhi and the Origin of Precipitation |
| |
| PANG Hong-xi,HE Yuan-qing,ZHANG Zhong-lin.Correlation between Deuterium Excess in Monsoon Precipitation of New Delhi and the Origin of Precipitation[J].Journal of Glaciology and Geocryology,2005,27(6):876-880. |
| |
| Authors: | PANG Hong-xi HE Yuan-qing ZHANG Zhong-lin |
| |
| Institution: | 1. Key Laboratory of Cryosphere and Environment, CAREERI, CAS, Lanzhou Gansu 730000, China;2. Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100029, China |
| |
| Abstract: | The isotopic data (δ18O and δD) in precipitation at New Delhi,the IAEA/WMO station in southwest monsoon region,were collected and analyzed.A few absent δD records were predicated based on the monsoonal water meteoric line,and finally the 36-year deuterium excess series was constructed by the isotopic data.The NCEP/NCAR Reanalysis Data,the relative humidity and zonal wind speed at 1000 hPa level over the western Arabian Sea,as well as the monsoon rainfall data in the northwest of India,have been used in order to explore the origin of monsoon precipitation by deuterium excess.It is indicated that the variation of deuterium excess is accordant with that of the relative humidity over the western Arabian Sea,which suggests that the vapor for monsoon precipitation in New Delhi originates mainly from the western Arabian Sea. |
| |
| Keywords: | deuterium excess relative humidity origin of precipitation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《冰川冻土》浏览原始摘要信息 |
| 点击此处可从《冰川冻土》下载免费的PDF全文 |
|
