Next Article in Journal
Exploring the Spatial-Seasonal Dynamics of Water Quality, Submerged Aquatic Plants and Their Influencing Factors in Different Areas of a Lake
Next Article in Special Issue
Calculation of Steady-State Evaporation for an Arbitrary Matric Potential at Bare Ground Surface
Previous Article in Journal
A Novel Calendar-Based Method for Visualizing Water Quality Change: The Case of the Yangtze River 2006–2015
Previous Article in Special Issue
Laboratory Investigation of the Effect of Slenderness Effect on the Non-Darcy Groundwater Flow Characteristics in Bimsoils
Open AccessArticle

A New Approach to Quantify Shallow Water Hydrologic Exchanges in a Large Regulated River Reach

Pacific Northwest National Laboratory, Richland, WA 99352, USA
CH2M HILL Plateau Remediation Company, Richland, WA 99352, USA
Department of Soil and Water Systems, University of Idaho, Moscow, ID 84844, USA
School of Geography Science, Nanjing Normal University, Nanjing 210023, China
Author to whom correspondence should be addressed.
Water 2017, 9(9), 703;
Received: 10 May 2017 / Revised: 7 September 2017 / Accepted: 11 September 2017 / Published: 15 September 2017
Hydrologic exchange is a crucial component of the water cycle. The strength of the exchange directly affects the biogeochemical and ecological processes that occur in the hyporheic zone and aquifer from micro to reach scales. Hydrologic exchange fluxes (HEFs) can be quantified using many field measurement approaches, however, in a relatively large river (scale > 103 m), these approaches are limited by site accessibility, the difficulty of performing representative sampling, and the complexity of geomorphologic features and subsurface properties. In rivers regulated by hydroelectric dams, quantifying HEF rates becomes more challenging because of frequent hydropeaking events, featuring hourly to daily variations in flow and river stages created by dam operations. In this study, we developed and validated a new approach based on field measurements to estimate shallow water HEF rates across the river bed along the shoreline of the Columbia River, USA. Vertical thermal profiles measured by self-recording thermistors were combined with time series of hydraulic gradients derived from river stages and inland water levels to estimate the HEF rates. The results suggest that the HEF rates had high spatial and temporal heterogeneities over the riverbed, with predicted flux rates varied from +1 × 10−6 m s−1 to −1.5 × 10−6 m s−1 under different flow conditions. View Full-Text
Keywords: hydrologic exchange; SW–GW interaction; field measurements; Columbia River hydrologic exchange; SW–GW interaction; field measurements; Columbia River
Show Figures

Figure 1

MDPI and ACS Style

Zhou, T.; Huang, M.; Bao, J.; Hou, Z.; Arntzen, E.; Mackley, R.; Crump, A.; Goldman, A.E.; Song, X.; Xu, Y.; Zachara, J. A New Approach to Quantify Shallow Water Hydrologic Exchanges in a Large Regulated River Reach. Water 2017, 9, 703.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Search more from Scilit
Back to TopTop