DOI: 10.1002/2016JD025572
论文题名: Assessment of Noah land surface model with various runoff parameterizations over a Tibetan river
作者: Zheng D. ; Van Der Velde R. ; Su Z. ; Wen J. ; Wang X.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2017
卷: 122, 期: 3 起始页码: 1488
结束页码: 1504
语种: 英语
英文关键词: land surface model
; Noah
; runoff parameterizations
; Tibetan Plateau
Scopus关键词: energy budget
; groundwater flow
; heat transfer
; hydrological modeling
; infiltration
; land surface
; parameterization
; river discharge
; runoff
; surface roughness
; topsoil
; China
; Qinghai-Xizang Plateau
英文摘要: Runoff parameterizations currently adopted by the (i) Noah-MP model, (ii) Community Land Model (CLM), and (iii) CLM with variable infiltration capacity hydrology (CLM-VIC) are incorporated into the structure of Noah land surface model, and the impact of these parameterizations on the runoff simulations is investigated for a Tibetan river. Four numerical experiments are conducted with the default Noah and three aforementioned runoff parameterizations. Each experiment is forced with the same set of atmospheric forcing, vegetation, and soil parameters. In addition, the Community Earth System Model database provides the maximum surface saturated area parameter for the Noah-MP and CLM parameterizations. A single-year recurrent spin-up is adopted for the initialization of each model run to achieve equilibrium states. Comparison with discharge measurements shows that each runoff parameterization produces significant differences in the separation of total runoff into surface and subsurface components and that the soil water storage-based parameterizations (Noah and CLM-VIC) outperform the groundwater table-based parameterizations (Noah-MP and CLM) for the seasonally frozen and high-altitude Tibetan river. A parameter sensitivity experiment illustrates that this underperformance of the groundwater table-based parameterizations cannot be resolved through calibration. Further analyses demonstrate that the simulations of other surface water and energy budget components are insensitive to the selected runoff parameterizations, due to the strong control of the atmosphere on simulated land surface fluxes induced by the diurnal dependence of the roughness length for heat transfer and the large water retention capacity of the highly organic top soils over the plateau. ©2017. The Authors. 资助项目: 41405079
; 41530529
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62694
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Faculty of Geo-Information Science and Earth Observation, University of Twente, Enschede, Netherlands; Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
Recommended Citation:
Zheng D.,Van Der Velde R.,Su Z.,et al. Assessment of Noah land surface model with various runoff parameterizations over a Tibetan river[J]. Journal of Geophysical Research: Atmospheres,2017-01-01,122(3)