Storage under the 2011 Chao Phraya River flood: An interpretation of watershed-scale storage changes at two neighboring mountainous watersheds in northern Thailand
Storage under the 2011 Chao Phraya River flood: An interpretation of watershed-scale storage changes at two neighboring mountainous watersheds in northern Thailand
复制标题
2011 年湄南河洪水下的蓄水量：对泰国北部两个邻近山区流域的流域规模蓄水量变化的解释
DOI：
10.3178/hrl.8.1
复制
发表时间：
2014
影响因子：
1.1
通讯作者：
Suttisak Soralump
中科院分区：
文献类型：
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作者：
Y. Yokoo;Chaiwut Wattanakarn;Supinda Wattanakarn;Vorapod Semcharoen;K. P. Sakolnakhon;Suttisak Soralump
本研究试图估算泰国北部两个山地流域的流域尺度库容变化，以了解2011年湄南河洪水下的流域尺度库容行为。为此，我们采用了一种方法，将每小时的水文曲线分成几个流量子分量，并形式化了流域尺度的储流量关系。结果表明：(1)该方法适用于亚热带流域；(2)在泰国北部的两个山地流域，有5个不同的流量子分量，对应于优势降雨径流过程的数量；(3)由于季节性较慢的流量子分量较强，预计2011年总库存量峰值出现在10月，而最大总库存量出现在6月；(4) watershed-scale之和最大存储的所有排放子组件上日子和Nan河流域分别估计为135毫米和405毫米,和差异可能解释为活断层的存在运行南北南上游流域,和(5)估计存储111 h的衰退时间常数在雨季的开始可以解释边坡破坏的风险出现在一个分水岭。
The present study attempted estimations of watershedscale storage changes at two mountainous watersheds in northern Thailand to understand the behaviors of watershedscale storage under the 2011 Chao Phraya River flood. For this purpose, we applied a methodology that separates an hourly hydrograph into several discharge sub-components, and formulized watershed-scale storage-discharge relationships. The results showed that (1) this methodology was applicable to sub-tropic watersheds, (2) there were five different discharge sub-components, that correspond to the number of dominant rainfall-runoff processes, in two mountainous watersheds in northern Thailand, (3) the peak total storage in 2011 was estimated to occur in October because of strongly seasonal slower discharge subcomponents, whereas the maximum total discharge was observed in June, (4) the sum of watershed-scale maximum storages of all the discharge sub-components in the upper Yom and Nan River watersheds were respectively estimated to be 135 mm and 405 mm, and the difference might be explained by the existence of the active fault running northsouth in the upper Nan River watershed, and (5) the estimated storage with the recession time constants of 111 h at the beginnings of rainy seasons could explain the risk of slope failure occurrences within a watershed.
影响因子：
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作者：
Wonsik Kim;S. Kanae;Y. Agata;T. Oki
通讯作者：
Wonsik Kim;S. Kanae;Y. Agata;T. Oki