Evaluating the Effect of Numerical Schemes on Hydrological Simulations: HYMOD as A Case Study
文献类型：期刊论文
| 作者 | Zhang, Shiyan1; Al-Asadi, Khalid2 |
| 刊名 | WATER
 |
| 出版日期 | 2019-02-01 |
| 卷号 | 11期号:2页码:20 |
| 关键词 | numerical scheme hydrological model numerical error HYMOD parameter optimization downhill simplex method |
| ISSN号 | 2073-4441 |
| DOI | 10.3390/w11020329 |
| 通讯作者 | Zhang, Shiyan(zhangshy@igsnrr.ac.cn) |
| 英文摘要 | The importance of numerical schemes in hydrological models has been increasingly recognized in the hydrological community. However, the relationship between model performance and the properties of numerical schemes remains unclear. In this study, we employed two types of numerical schemes (i.e., explicit Runge-Kutta schemes with different orders of accuracy and partially implicit Euler schemes with different implicit factors) in the hydrological model (HYMOD) to simulate the flow hydrograph of the Leaf River basin from 1948 to 1988. Results computed by different numerical schemes were compared and the relationships between model performance and two scheme properties (i.e., the order of accuracy and the implicit factor) were discussed. Results showed that the more explicit schemes generally lead to the overestimation of flow hydrographs, whereas the more implicit schemes lead to underestimation. In addition, the numerical error tended to decrease with increasing orders of accuracy. As a result, the optimal parameter sets found by low-order schemes significantly deviated from those found by the analytical solution. The findings of this study can provide useful implications for designing suitable numerical schemes for hydrological models. |
| WOS关键词 | PART 1 ; MODEL ; WATER ; RUNOFF ; ENERGY |
| 资助项目 | National Key R&D Program of China[2016YFC0402406] ; National Natural Science Foundation of China[51509234] ; National Natural Science Foundation of China[51579230] |
| WOS研究方向 | Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000460899600148 |
| 出版者 | MDPI |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/48703]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Shiyan |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Basrah, Dept Civil Engn, Coll Engn, Basrah 61004, Iraq |
| 推荐引用方式 GB/T 7714 | Zhang, Shiyan,Al-Asadi, Khalid. Evaluating the Effect of Numerical Schemes on Hydrological Simulations: HYMOD as A Case Study[J]. WATER,2019,11(2):20. |
| APA | Zhang, Shiyan,&Al-Asadi, Khalid.(2019).Evaluating the Effect of Numerical Schemes on Hydrological Simulations: HYMOD as A Case Study.WATER,11(2),20. |
| MLA | Zhang, Shiyan,et al."Evaluating the Effect of Numerical Schemes on Hydrological Simulations: HYMOD as A Case Study".WATER 11.2(2019):20. |
入库方式： OAI收割
来源：地理科学与资源研究所
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