TY - JOUR
T1 - Quantifying the Spatial Variations of Hyporheic Water Exchange at Catchment Scale Using the Thermal Method
T2 - A Case Study in the Weihe River, China
AU - Zhang, Junlong
AU - Song, Jinxi
AU - Long, Yongqing
AU - Zhang, Yan
AU - Zhang, Bo
AU - Wang, Yuqi
AU - Wang, Yuanyuan
N1 - Publisher Copyright:
© 2017 Junlong Zhang et al.
PY - 2017
Y1 - 2017
N2 - Understanding the dynamics of hyporheic water exchange (HWE) has been limited by the hydrological heterogeneity at large catchment scale. The thermal method has been widely used to understand water exchange patterns in a hyporheic zone. This study was conducted in the Weihe River catchment in Shaanxi Province, China. A conceptual model was developed to determine water transfer patterns, and a one-dimensional heat diffusion-advection equation was employed to estimate vertical fluxes of ten different segments in the hyporheic zone in various ten segments of the catchment. The amount of water exchange varied from 78.47 mm/d to 23.66 mm/d and a decreasing trend from the upstream to downstream of catchment was observed. The spatial correlation of variability between the water exchange and distance is 0.62. The results indicate that mountain's topography trend is the primary driver influencing the distribution of river tributaries, and the water exchange amount has a decreasing trend from upstream to downstream of the main river channel.
AB - Understanding the dynamics of hyporheic water exchange (HWE) has been limited by the hydrological heterogeneity at large catchment scale. The thermal method has been widely used to understand water exchange patterns in a hyporheic zone. This study was conducted in the Weihe River catchment in Shaanxi Province, China. A conceptual model was developed to determine water transfer patterns, and a one-dimensional heat diffusion-advection equation was employed to estimate vertical fluxes of ten different segments in the hyporheic zone in various ten segments of the catchment. The amount of water exchange varied from 78.47 mm/d to 23.66 mm/d and a decreasing trend from the upstream to downstream of catchment was observed. The spatial correlation of variability between the water exchange and distance is 0.62. The results indicate that mountain's topography trend is the primary driver influencing the distribution of river tributaries, and the water exchange amount has a decreasing trend from upstream to downstream of the main river channel.
UR - http://www.scopus.com/inward/record.url?scp=85017102207&partnerID=8YFLogxK
U2 - 10.1155/2017/6159325
DO - 10.1155/2017/6159325
M3 - Article
SN - 1687-9309
VL - 2017
JO - Advances in Meteorology
JF - Advances in Meteorology
M1 - 6159325
ER -