Spatiotemporal variation of river temperature as a predictor of groundwater/surface-water interactions in an arid watershed in China (SCI)

CORC > 寒区旱区环境与工程研究所 > 中科院寒区旱区环境与工程研究所（未分类） > 期刊论文

	Spatiotemporal variation of river temperature as a predictor of groundwater/surface-water interactions in an arid watershed in China (SCI)
	Yao Y. Y.; Huang X.; Liu J.; Zheng C. M.; He X. B.; Liu C. K.
刊名	Hydrogeology Journal
	2015
卷号	23 期号:5 页码:999-1007
英文摘要	Interactions between groundwater and surface water in arid regions are complex, and recharge-discharge processes are often influenced by the hydrological regime, climate and geology. Traditional methods such as hydraulic gradient measuring by piezometers, differential discharge gauging and conservative tracer experiments, are often inadequate to capture the spatial and temporal variation of exchange rates. In this study, the distribution and the size of the overall groundwater inflow zone (GIZ) and the hyporheic inflow zone (HIZ) in the middle Heihe River Basin, northwest China, are characterized, and the relative inflow flux is estimated by high-resolution temperature measurements. Distributed temperature sensing (DTS) was used to measure the mixing temperatures of a 5-km reach of streambed with a spatial resolution of 0.5 m. The sampling interval was 0.25 m, and the temporal interval was 15 and 10 min at Pingchuan and Banqiao experimental sites, respectively. Two separate measurement periods in Pingchuan (Ping1, Ping2) captured different meteorological and stream-flow conditions. The results show that the number and the size range of the individual HIZs are greater than those of GIZs. Groundwater upwelling (GIZ) causes a larger decrease in river-water temperature with less inflow flux compared with the HIZ. The distribution pattern of HIZs and GIZs is influenced by the hydrodynamics of the river and the hydraulic permeability of the riverbed. High-resolution temperature variation based on DTS is an effective predictor of distributed inflows from groundwater upwelling and hyporheic exchange in an arid region.
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.casnw.net/handle/362004/27704]
专题	寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文
推荐引用方式 GB/T 7714	Yao Y. Y.,Huang X.,Liu J.,et al. Spatiotemporal variation of river temperature as a predictor of groundwater/surface-water interactions in an arid watershed in China (SCI)[J]. Hydrogeology Journal,2015,23(5):999-1007.
APA	Yao Y. Y.,Huang X.,Liu J.,Zheng C. M.,He X. B.,&Liu C. K..(2015).Spatiotemporal variation of river temperature as a predictor of groundwater/surface-water interactions in an arid watershed in China (SCI).Hydrogeology Journal,23(5),999-1007.
MLA	Yao Y. Y.,et al."Spatiotemporal variation of river temperature as a predictor of groundwater/surface-water interactions in an arid watershed in China (SCI)".Hydrogeology Journal 23.5(2015):999-1007.