Relation between stable isotope in monsoon precipitation in southern Tibetan Plateau and moisture transport history

被引:14
作者
田立德
姚檀栋
A.Numaguti
段克勤
机构
关键词
: stable isotope; moisture transport processes; south of the Tibetan Plateau;
D O I
暂无
中图分类号
P597 [同位素地质学与地质年代学];
学科分类号
070902 ;
摘要
The moisture transport history to the south of the Tibetan Plateau was modeled using the meteorological data provided by NCEP in this paper, and the modeled results were compared with the measured δ18O in the south of the Tibetan Plateau. The relation between δ18O in precipitation in the south of the Tibetan Plateau and moisture trajectories was discussed. The results show that the extremely low δ18O in precipitation in the south of the Tibetan Plateau is always related to the moisture from the low-level sea surface evaporation. The long-distance transport of moisture also contributes to low δ18O in precipitation probably due to the rainout process during moisture transport. It is also found that lowδ18O in precipitation is also related with deep layer transport of moisture, and with intensive condensation in the upper layers of the atmosphere, resulting in low δ18O because of depletion of heavy isotopes in deep condensation. However, high δ18O in precipitation whether in monsoon period or not is
引用
收藏
页码:267 / 274
页数:8
相关论文
共 8 条
[1]   青藏高原中部降水稳定同位素变化与季风活动 [J].
田立德 ;
姚檀栋 ;
孙维贞 ;
Numagyti Atusi ;
Koike Toshio .
地球化学, 2001, (03) :217-222
[2]  
Water vapor image of snow storm process over southern Tibet[J]. ZHU Fukang, ZHENG Xinjiang, LUO Jingbao and LI Zengzhong Chinese Academy of Meteorological Sciences, Beijing 100081, China;China National Satellite Meteorological Center, Beijing 100081, China.Chinese Science Bulletin. 1999(04)
[3]   拉萨夏季降水中氧稳定同位素变化特征 [J].
田立德 ;
姚檀栋 ;
蒲健辰 ;
杨志红 .
冰川冻土, 1997, (04) :7-13
[4]   夏季青藏高原水汽输送特征 [J].
郑新江 ;
许健民 ;
李献洲 .
高原气象, 1997, (03) :51-58
[5]   Variational features of precipitation δ18O in Northeast Qinghai-Tibet Plateau [J].
章新平 ;
施雅风 ;
姚檀栋 .
Science in China(Series B), 1995, (07) :854-864
[6]   影响青藏高原的天气系统与降水中氧同位素的关系 [J].
章新平,姚檀栋 .
冰川冻土, 1995, (02) :125-131
[7]   论季风气候对我国雨水同位素组成的影响 [J].
卫克勤,林瑞芬 .
地球化学, 1994, (01) :33-41
[8]   雅鲁藏布江水汽通道对降水的影响 [J].
高登义 ;
邹捍 ;
王维 .
山地研究, 1985, (04) :239-249