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首页> 外文期刊>SOLA: Scientific Online Letters on the Atmosphere >Validation of Changing Water Origins over Indochina during the Withdrawal of the Asian Monsoon using Stable Isotopes
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Validation of Changing Water Origins over Indochina during the Withdrawal of the Asian Monsoon using Stable Isotopes

机译：利用稳定同位素验证亚洲季风撤出期间印度支那水源的变化

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References(14) Cited-By(10) Supplementary materials(1) Daily rainfall and δ18O were observed from August to November 2001 at three stations in Thailand. Water origins were estimated using a tagged-water transport model. The temporal and spatial distributions of water origins showed a clear transition from the Indian Ocean to the Pacific Ocean as the Asian monsoon retreated from Indochina. A new definition of the withdrawal date of the Asian monsoon over Indochina is proposed that considers the transition of the origin of water vapor. The daily variability of precipitation isotopes at three stations in Thailand was reproduced at statistically significant levels using a Rayleigh-type isotope circulation model. Therefore, the atmospheric water balance in the model can be validated reliably with these precipitation isotopes. Nevertheless, the simulated δ18O values were obviously underestimated, perhaps because of uncertainties in the evaporating isotope ratios and the lack of isotope physics at small scales.
机译：参考文献（14）被引用的文献（10）补充材料（1）2001年8月至11月，在泰国的三个观测站观测到每日降雨和δ18O。使用标记水运输模型估算水的来源。随着亚洲季风从印度支那撤退，水源的时空分布显示出从印度洋到太平洋的明显过渡。提出了有关印度支那亚洲季风撤出日期的新定义，其中考虑了水蒸气起源的转变。使用瑞利型同位素循环模型，以统计显着性水平重现了泰国三个站点的降水同位素的日变化。因此，利用这些沉淀同位素可以可靠地验证模型中的大气水平衡。然而，可能是由于蒸发同位素比的不确定性以及小规模缺乏同位素物理学的缘故，模拟的δ18O值明显被低估了。

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