Distributed hydrological model transferability across basins with different hydro‐climatic characteristics

Distributed hydrological model transferability across basins with different hydro‐climatic characteristics
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不同水文气候特征流域间分布式水文模型的可迁移性

DOI:
10.1002/hyp.8294
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发表时间:
2012
影响因子:
3.2
通讯作者:
M. Shiiba
M. Shiiba
中科院分区:
地球科学3区
文献类型:
--
作者:
P. B. Hunukumbura;Y. Tachikawa;M. Shiiba

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在本文中,我们研究了分布式水文模型的可移植性,以更好地实现洪水预报在无资料流域不同的水文气候特征。首先,分布式水文模型的参数在流域出口校准,以使一致的预测在无资料的内部子流域的洪水范围内具有不同的初始条件的可转移性进行了研究。研究发现,转换后的模型参数可用于在湿初始条件下对未测量的内部子流域洪水事件进行合理预测。相比之下,在内部子流域的预测精度被认为是低的洪水,最初干燥的条件。通过将空间异质性的参数,根据地形,我们能够更好地预测洪水与最初的干燥条件。
In this paper, we investigated the transferability of a distributed hydrological model to better realize flood predictions at ungauged basins with different hydro‐climatic characteristics. First, the transferability of a distributed hydrological model's parameters calibrated at the basin outlet in order to make consistent predictions at ungauged internal sub‐basins for a range of floods with different initial conditions is investigated. It is found that the transferred model parameters can be used to make reasonable predictions at ungauged internal sub‐basins for flood events with wet initial conditions. In contrast, the prediction accuracy at internal sub‐basins is found to be low for floods that have initially dry conditions. By incorporating the spatial heterogeneity of the parameters, depending on the topography, we are better able to predict floods with initially dry conditions.
DOI: 10.1016/j.jhydrol.2007.09.016
发表时间: 2007-12-15
影响因子: 6.4
作者:
Shrestha, S.;Bastola, S.;Takeuchi, K.
通讯作者: Takeuchi, K.
结合饱和-非饱和流动机制的阶段-流量关系方程的发展
DOI: --
发表时间: 2004
期刊: Annual Journal of Hydraulic Engineering (JSCE) Vol.48
影响因子: --
作者:
Yasuto Tachikawa;Gen Nagatani;Kaoru Takara
通讯作者: Kaoru Takara
DOI: --
发表时间: 2008
期刊: 水工学論文集 52
影响因子: --
作者:
Hunukumbura P. B;Yasuto TACHIKAWA and Kaoru TAKARA
通讯作者: Yasuto TACHIKAWA and Kaoru TAKARA