Interaction between Topographic and Process Parameters due to the Spatial Resolution of DEMs in Distributed Rainfall-Runoff Modeling
Interaction between Topographic and Process Parameters due to the Spatial Resolution of DEMs in Distributed Rainfall-Runoff Modeling
复制标题
分布式降雨径流建模中 DEM 空间分辨率导致的地形和过程参数之间的相互作用
DOI：
10.1061/(asce)he.1943-5584.0000098
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发表时间：
2009
影响因子：
2.4
通讯作者：
K. Takara
中科院分区：
文献类型：
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作者：
Giha Lee;Y. Tachikawa;K. Takara
选择合适的数字高程模型（DEM）分辨率是分布式降雨径流建模的重要组成部分，因为分辨率会影响参数值，进而导致预测的不确定性。此外，DEM分辨率直接决定了模型仿真所需的计算量。在分布式降雨径流模拟中，由于dem的空间分辨率，本研究进行了多次实验，以阐明地形和过程参数之间的相互作用。首先，采用5种不同的空间分辨率（从50 m到1 km），分析了DEM分辨率对分布式降雨-径流模型（地下和地表径流的运动学波法（KWMSS））地形和过程参数的影响。其次，通过将基于不同分辨率的模型应用于各分辨率下表现最佳的参数组合，测试了模型性能对各DEM最优参数值的敏感性，从而验证了参数兼容性。
Selecting an appropriate digital elevation model (DEM) resolution is an essential part of distributed rainfall-runoff modeling since the resolution affects parameter values and, in turn, leads to predictive uncertainty. Moreover, the DEM resolution directly determines the computational workload required for model simulation. This study conducted several experiments to clarify the interaction between topographic and process parameters due to the spatial resolution of DEMs in distributed rainfall-runoff modeling. First, five different spatial resolutions (from 50 m to 1 km) were used to analyze the effects of DEM resolution on the topographic and process parameters of a distributed rainfall-runoff model [kinematic wave method for subsurface and surface runoff (KWMSS)]. Second, parameter compatibility was tested with regard to the sensitivity of model performance to optimal parameter values for each DEM, by applying the best-performing parameter combinations for each resolution to the models based on differi...
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