Effects of Topographic Heterogeneity on Coarse Resolution Grid-Based Runoff Simulation—Assessment for Three River Basins in Peninsular Malaysia
Effects of Topographic Heterogeneity on Coarse Resolution Grid-Based Runoff Simulation—Assessment for Three River Basins in Peninsular Malaysia
复制标题
地形异质性对粗分辨率网格径流模拟的影响——马来西亚半岛三河流域评估
DOI：
--
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
S. Uhlenbrook
中科院分区：
文献类型：
--
作者：
C. Wong;Z. Yusop;R. Venneker;S. Uhlenbrook
本文研究了地形异质性对马来西亚半岛彭亨、吉兰丹和慕达河流域（分别为 25,600、11,900 和 4010 平方公里）的 0.05 度（约 5.5 公里）空间分辨率分布式水文模型模拟径流响应的影响。根据 1999-2004 年期间观测到的水流进行了每日模拟和评估。通过亚网格地形坡度来表征地形结构，以指导模型网格上水文参数的分解。结果表明，与不考虑子网格地形变化的传统径流生产参数化方案相比，所有三个流域的模拟技能得到了提高。然而，在未来的工作中应考虑与形态异质性和物理地形条件变化相关的其他因素，以表征水文异质性。本方法可能具有进一步开发大规模、粗分辨率基于网格的水文模型的潜力，而不会增加结构模型的复杂性，也不影响参数简约性。
This paper investigates the effects of topographic heterogeneity on the runoff response simulated by a 0.05 degree (approximately 5.5 km) spatial resolution distributed hydrological model for the Pahang, Kelantan, and Muda river basins (25,600, 11,900, and 4010 km2, respectively) in Peninsular Malaysia. Daily simulations were carried out and assessed against observed streamflow for the period 1999–2004. Topographic structure was characterized by means of subgrid terrain slope to guide the decomposition of hydrological parameters over the model grid. The results show improved simulation skill for all three basins compared to a traditional runoff production parameterization scheme that does not take into account the subgrid topographic variability. However, other factors related to morphological heterogeneity and variability in physical terrain conditions should be considered in future work in order to characterize the hydrological heterogeneity. The present methodology may be of potential for further development of large-scale, coarse resolution grid-based hydrological models without adding structural model complexity and without affecting parameter parsimony.
影响因子：
6.4
作者：
Bell, V. A.;Kay, A. L.;Reynard, N. S.
通讯作者：
Reynard, N. S.
对潮湿热带环境的 JULES 陆地表面模型水文学的严格评估
DOI：
10.5194/hessd-9-12523-2012
发表时间：
2012
期刊：
--
影响因子：
--
作者：
Zulkafli Z
通讯作者：
Zulkafli Z