气候变化领域集成服务门户(CCPortal): Influence of river channel geometry in stream flow modelling and guidelines for field investigation

CCPortal

DOI	10.1002/hyp.9837
	Influence of river channel geometry in stream flow modelling and guidelines for field investigation
	Zhang, Hongbo; Zhang, Fan; Shi, Xiaonan; Zeng, Chen; Shih, Dong-Sin; Yeh, Gour-Tsyh; Joswiak, Daniel R.
通讯作者	Zhang, F (通讯作者)
发表日期	2014
ISSN	0885-6087
EISSN	1099-1085
起始页码	2630
结束页码	2638
卷号	28 期号:4
英文摘要	Fully physics-based, process-level, distributed fluid flow and reactive transport hydrological models are rarely used in practice until recent years. These models are useful tools to help understand the fundamental physical, chemical, and biological processes that take place in nature. In this study, sensitivity analyses based on a mountain area river basin modelling study are performed to investigate the effect of river channel geometric characteristics on downstream water flow. Numerical experiments show that reduction in the river channel geometric measurement interval may not significantly affect the downstream water stage simulation as long as measurement accuracy at special nodes is guaranteed. The special upstream nodes include but are not limited to 1) nodes located close to the observation station, 2) nodes near the borders of different land covers with considerable riverbed roughness changes, 3) nodes at entering points of tributaries causing discharge jump and 4) nodes with a narrow cross-section width that may control the flow conditions. This information provides guidelines for field investigation to efficiently obtain necessary geometric data for physics-based hydrological modelling. It is especially useful in alpine areas such as the Tibetan Plateau where field investigation capability is limited under severe topography and climate condition. Copyright (c) 2013 John Wiley & Sons, Ltd.
关键词	SPATIAL-RESOLUTION IMAGERY RECENT GLACIAL RETREAT WATER-RESOURCE IMPACT SENSITIVITY NETWORKS OVERLAND CHINA SCALE
英文关键词	distributed hydrological model; sensitivity analyses; river channel geometry; Tibetan Plateau
语种	英语
WOS研究方向	Water Resources
WOS类目	Water Resources
WOS记录号	WOS:000330743000085
来源期刊	HYDROLOGICAL PROCESSES
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/258321
推荐引用方式 GB/T 7714	Zhang, Hongbo,Zhang, Fan,Shi, Xiaonan,et al. Influence of river channel geometry in stream flow modelling and guidelines for field investigation[J]. 中国科学院青藏高原研究所,2014,28(4).
APA	Zhang, Hongbo.,Zhang, Fan.,Shi, Xiaonan.,Zeng, Chen.,Shih, Dong-Sin.,...&Joswiak, Daniel R..(2014).Influence of river channel geometry in stream flow modelling and guidelines for field investigation.HYDROLOGICAL PROCESSES,28(4).
MLA	Zhang, Hongbo,et al."Influence of river channel geometry in stream flow modelling and guidelines for field investigation".HYDROLOGICAL PROCESSES 28.4(2014).