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| DOI | 10.1002/hyp.6139 |
| Isotopic variations in precipitation at Bangkok and their climatological significance | |
| He, Yuanqing; Pang, Hongxi; Theakstone, W. H.; Zhang, Zhonglin; Lu, Aigang; Gu, Juan | |
| 发表日期 | 2006 |
| ISSN | 0885-6087 |
| EISSN | 1099-1085 |
| 起始页码 | 2873 |
| 结束页码 | 2884 |
| 卷号 | 20期号:13 |
| 英文摘要 | The stable isotopic composition of precipitation from low to mid latitudes contains information about changes of some climatic factors, such as temperature, precipitation and atmospheric circulation patterns. However, the isotopic variations in the area are very complicated because of the combined influences of these factors. Proper interpretation of the patterns of isotopic variations for palaeoclimate reconstructions in this area requires a detailed understanding of these complex stable isotope controls. The isotopic data (delta O-18 and delta D-2) in precipitation at the International Atomic Energy Agency-World Meteorological Organization Bangkok station were collected and analysed because of the relatively long and unbroken isotopic records and the particular geographical location. The isotopic variations at Bangkok have strong seasonal patterns owing to distinct source regions in different seasons. In summer, the remote sources of water there can influence the delta O-18 values significantly, which is verified by the simple Rayleigh model. In winter, the mixing of isotopically distinct air masses with different origins, i.e. the continental and oceanic air masses, accounts for the isotopic variations. In the transition periods of the Asia-Australia monsoon, namely in May and October, the local vapour contribution may play a role in the isotopic ratios. On the interannual time-scale, the influences of El Nino-southern oscillation (ENSO) and the Indian Ocean dipole (IOD) on isotopic composition are examined. The indications are that both the ENSO and IOD indices have a significant correlation with the delta O-18 ratios, and that the delta O-18 ratio in summer rains is significantly more enriched (depleted) during the warm (cold) phase of ENSO/IOD events. All the results suggest that it is useful for us in understanding the water cycling process and may be helpful in palaeoclimate reconstruction in this monsoon region. Copyright (C) 2006 John Wiley & Sons, Ltd. |
| 关键词 | GENERAL-CIRCULATION MODELINDIAN-OCEAN DIPOLENEW-DELHISOUTHERN OSCILLATIONMONSOON RAINFALLSTABLE ISOTOPESWATERVARIABILITYPATTERNSEVENTS |
| 英文关键词 | stable isotopes; precipitation; Bangkok; climatological significance |
| 语种 | 英语 |
| WOS研究方向 | Water Resources |
| WOS类目 | Water Resources |
| WOS记录号 | WOS:000239852400014 |
| 来源期刊 | HYDROLOGICAL PROCESSES
 |
| 来源机构 | 中国科学院青藏高原研究所 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/257417 |
| 推荐引用方式 GB/T 7714 | He, Yuanqing,Pang, Hongxi,Theakstone, W. H.,et al. Isotopic variations in precipitation at Bangkok and their climatological significance[J]. 中国科学院青藏高原研究所,2006,20(13). |
| APA | He, Yuanqing,Pang, Hongxi,Theakstone, W. H.,Zhang, Zhonglin,Lu, Aigang,&Gu, Juan.(2006).Isotopic variations in precipitation at Bangkok and their climatological significance.HYDROLOGICAL PROCESSES,20(13). |
| MLA | He, Yuanqing,et al."Isotopic variations in precipitation at Bangkok and their climatological significance".HYDROLOGICAL PROCESSES 20.13(2006). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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