DEVELOPMENT AND VERIFICATION OF A VERTICAL INTEGRATED TWO DIMENSIONAL WATER ISOTOPE CIRCULATION MODEL
DEVELOPMENT AND VERIFICATION OF A VERTICAL INTEGRATED TWO DIMENSIONAL WATER ISOTOPE CIRCULATION MODEL
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垂直一体化二维水同位素环流模型的建立与验证
DOI：
10.2208/prohe.47.109
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
M. Koike
中科院分区：
文献类型：
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作者：
K. Yoshimura;T. Oki;N. Ohte;M. Koike
降水中的水稳定同位素D和18 O具有很大的时空波动性，是全球水文循环中广泛使用的示踪剂。然而，波动的主要因素还没有被定量描述的先前的研究。因此，本研究开发了一个新的同位素环流模式（ICM），它具有更高的时空分辨率（1.25·<$·~1.25·<$·）和日时间尺度。注意，ICM只有一个垂直层，这意味着同位素行为在每个网格中垂直积分。ICM模拟了清迈降水量的日变化，相关系数为0.76，模拟了清迈降水量的月变化
The water stable isotopes (D and 18O) in precipitation, which are widely used as tracers in the global hydrological cycle, have large spatial and temporal fluctuations. However, a primary factor of the fluctuations has not been quantitatively described by previous studies. Thus, this study has developed a new isotope circulation model (ICM), which has higher spatial and temporal resolution such as 1 .25•‹•~1.25•‹ and daily time-scale than former isotope model studies . Notice that ICM has only one vertical layer, which means the isotopic behavior are vertically integrated in each grid . ICM has reproduced the daily variation of precipitation ƒÂ18O in Chiangmai with good correlation (0.76), as well as the monthly ƒÂ18O in the whole