globalchange  > 影响、适应和脆弱性
DOI: 10.1002/jgrd.50696
论文题名:
Modeling the land surface water and energy cycles of a mesoscale watershed in the central Tibetan Plateau during summer with a distributed hydrological model
作者: Xue B.-L.; Wang L.; Yang K.; Tian L.; Qin J.; Chen Y.; Zhao L.; Ma Y.; Koike T.; Hu Z.; Li X.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期:16
起始页码: 8857
结束页码: 8868
语种: 英语
Scopus关键词: Atmospheric temperature ; Climate models ; Mean square error ; Radiometers ; Soil moisture ; Watersheds ; Central Tibetan plateau ; Distributed hydrological model ; Efficiency coefficient ; Land surface temperature ; Model verification ; Root mean square errors ; Soil surface temperatures ; Water and energies ; Surface waters ; accuracy assessment ; calibration ; energy budget ; energy flux ; gauge ; hydrological modeling ; land surface ; mesoscale motion ; model validation ; MODIS ; monsoon ; numerical model ; plateau ; soil surface ; soil temperature ; soil water ; summer ; surface temperature ; surface water ; watershed ; China ; Qinghai-Xizang Plateau
英文摘要: The Tibetan Plateau (TP) is the highest plateau in the world, playing an essential role in Asian monsoon development and concurrent water and energy cycles. In this study, the Water and Energy Budget-based Distributed Hydrological Model (WEB-DHM) was calibrated and used to simulate water and energy cycles in a central TP watershed during the summer season. The model was first calibrated at a point scale (BJ site). The simulation results show that the model can successfully reproduce energy fluxes and soil surface temperature with acceptable accuracies. The model was further calibrated at basin scale, using observed discharges in summer 1998 and the entire year of 1999. The model successfully reproduced discharges near the basin outlet (Nash-Sutcliffe efficiency coefficients 0.60 and 0.62 in 1998 and 1999, respectively). Finally, the model was validated using MODIS land surface temperature (LST) data and measured soil water content (SWC) at 15 points within the watershed in 2010. The simulation results show that the model successfully reproduced the spatial pattern and LST means in both nighttime and daytime. Furthermore, the model can generally reproduce 15-site averaged SWC in four soil layers, with small bias error and root mean square error. Despite the absence of long-term discharge data for model verification, we validated it using MODIS LST and measured SWC data. This showed that the WEB-DHM has the potential for use in poorly gauged or ungauged areas such as the TP. This could improve understanding of water and energy cycles in these areas. © 2013. Her Majesty the Queen in Right of Canada. American Geophysical Union.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63403
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: Key Laboratory of Tibetan Environmental Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Lincui Road, Chaoyang District, Beijing 100101, China; State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China; Department of Civil Engineering, University of Tokyo, Tokyo, Japan; Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China

Recommended Citation:
Xue B.-L.,Wang L.,Yang K.,et al. Modeling the land surface water and energy cycles of a mesoscale watershed in the central Tibetan Plateau during summer with a distributed hydrological model[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(16)
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