Improving kinematic wave routing Land Model scheme in Community Land Model
文献类型：SCI/SSCI论文
| 作者 | Ye A. Z. ; Duan Q. Y. ; Zhan C. S. ; Liu Z. F. ; Mao Y. N. |
| 发表日期 | 2013 |
| 关键词 | catchment-based kinematic wave routing China Community Land Model discharge River Transport Model travel-time method river flow model diffusion wave cascade model accuracy criteria climate-change hydrology surface scale calibration |
| 英文摘要 | Version 3.5 of Community Land Model (CLM) has incorporated a river routing module, called the River Transport Model (RTM), to simulate the runoff routing process over a hydrologic basin. RTM treats river routing as a linear reservoir process propagated through a gridded domain. Because the flow velocity at each grid is set as a constant, RTM cannot simulate river routing well. In this paper, we developed a large scale catchment-based kinematic wave routing (KWR) model to be coupled with CLM, which simulates the movement of water through floodplains and river channels. An advantage of KWR over RIM is that the flow velocity is calculated by the Manning equation, which considers the difference in friction slope and hydraulic radius in each sub-basin (or grid) and time step. A second advantage is that the KWR velocity parameterization accounts for spatial temporal variability. Using the daily runoff simulations in continental China over the time period 1995-2004 from CLM3.5 as inputs to both RTM and KWR, we found that the simulated discharge of KWR is closer to observed discharge than that of RTM. Our study has shown that KWR may be a valid alternative to RTM in CLM. |
| 出处 | Hydrology Research |
| 卷 | 44 |
| 期 | 5 |
| 页 | 886-903 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1998-9563 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30091]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Ye A. Z.,Duan Q. Y.,Zhan C. S.,et al. Improving kinematic wave routing Land Model scheme in Community Land Model. 2013. |
入库方式： OAI收割
来源：地理科学与资源研究所
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