气候变化领域集成服务门户(CCPortal): Intensive precipitation observation greatly improves hydrological modelling of the poorly gauged high mountain Mabengnong catchment in the Tibetan Plateau

CCPortal

DOI	10.1016/j.jhydrol.2017.11.039
	Intensive precipitation observation greatly improves hydrological modelling of the poorly gauged high mountain Mabengnong catchment in the Tibetan Plateau
	Wang, Li; Zhang, Fan; Zhang, Hongbo; Scott, Christopher A.; Zeng, Chen; Shi, Xiaonan
通讯作者	Zhang, F (通讯作者)
发表日期	2018
ISSN	0022-1694
EISSN	1879-2707
起始页码	500
结束页码	509
卷号	556
英文摘要	Precipitation is one of the most critical inputs for models used to improve understanding of hydrological processes. In high mountain areas, it is challenging to generate a reliable precipitation data set capturing the spatial and temporal heterogeneity due to the harsh climate, extreme terrain and the lack of observations. This study conducts intensive observation of precipitation in the Mabengnong catchment in the southeast of the Tibetan Plateau during July to August 2013. Because precipitation is greatly influenced by altitude, the observed data are used to characterize the precipitation gradient (PG) and hourly distribution (HD), showing that the average PG is 0.10, 0.28 and 0.26 mm/d/100 m and the average duration is around 0.1, 0.8 and 5.2 h for trace, light and moderate rain, respectively. A distributed biosphere hydrological model based on water and energy budgets with improved physical process for snow (WEB-DHMS) is applied to simulate the hydrological processes with gridded precipitation data derived from a lower altitude meteorological station and the PG and HD characterized for the study area. The observed runoff, MODIS/Terra snow cover area (SCA) data, and MODIS/Terra land surface temperature (LST) data are used for model calibration and validation. Runoff, SCA and LST simulations all show reasonable results. Sensitivity analyses illustrate that runoff is largely underestimated without considering PG, indicating that short-term intensive precipitation observation has the potential to greatly improve hydrological modelling of poorly gauged high mountain catchments. (C) 2017 Elsevier B.V. All rights reserved.
关键词	MODIS SNOW COVER ALTITUDE RELATIONSHIP SUBSURFACE STORMFLOW RAINFALL VARIABILITY SURFACE TEMPERATURE RIVER-BASIN VALIDATION RUNOFF CLIMATE WATER
英文关键词	Tibetan Plateau; Precipitation gradient; Precipitation duration; Runoff modeling; Snow cover modeling
语种	英语
WOS研究方向	Engineering ; Geology ; Water Resources
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:000423641300039
来源期刊	JOURNAL OF HYDROLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259211
推荐引用方式 GB/T 7714	Wang, Li,Zhang, Fan,Zhang, Hongbo,et al. Intensive precipitation observation greatly improves hydrological modelling of the poorly gauged high mountain Mabengnong catchment in the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2018,556.
APA	Wang, Li,Zhang, Fan,Zhang, Hongbo,Scott, Christopher A.,Zeng, Chen,&Shi, Xiaonan.(2018).Intensive precipitation observation greatly improves hydrological modelling of the poorly gauged high mountain Mabengnong catchment in the Tibetan Plateau.JOURNAL OF HYDROLOGY,556.
MLA	Wang, Li,et al."Intensive precipitation observation greatly improves hydrological modelling of the poorly gauged high mountain Mabengnong catchment in the Tibetan Plateau".JOURNAL OF HYDROLOGY 556(2018).