Characterization of basin-scale aquifer heterogeneity using transient hydraulic tomography with aquifer responses induced by groundwater exploitation reduction
AffiliationUniv Arizona, Dept Hydrol & Atmospher Sci
Basin-scale aquifer heterogeneity
Groundwater exploitation reduction
North China Plain
MetadataShow full item record
CitationLiu, F., Yeh, T. C. J., Wang, Y. L., Hao, Y., Wen, J. C., & Wang, W. (2020). Characterization of basin-scale aquifer heterogeneity using transient hydraulic tomography with aquifer responses induced by groundwater exploitation reduction. Journal of Hydrology, 125137.
JournalJournal of Hydrology
RightsCopyright © 2020 Elsevier B.V. All rights reserved.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at firstname.lastname@example.org.
AbstractThis study exploits aquifer responses to the reduction of pumping rates at different locations in a synthetic groundwater basin as basin-scale hydraulic tomography (HT) surveys to estimate transmissivity (T) and storage coefficient (S) fields. This experiment mimics the situation of groundwater exploitation reduction in a pilot area of groundwater-overexploitation control in the North China Plain. The results of the study show that taking advantage of the groundwater exploitation reduction as HT surveys is a viable approach for basin-scale parameter estimations. Results also suggest that HT analysis should use accurate mean values of T and S for geological zones as initial guesses for the inversion of parameters. Further, we show that the T and S fields estimated from HT yield accurate predictions of the groundwater flow velocities and breakthrough curves (BTCs). However, the BTCs based on kriged and zonal mean fields are inaccurate. The predicted BTCs using homogeneous fields fail to capture the true trend of solute concentration over time. We advocate that utilizing aquifer responses induced by groundwater exploitation reduction could be a new paradigm for basin-scale aquifer characterization.
Note24 month embargo; available online 3 June 2020
VersionFinal accepted manuscript
SponsorsNational Natural Science Foundation of China (Grant No. 41901039) the China Scholarship Council (Grant No. 201808130026) Natural Science Foundation of Hebei Province (Grant No. D2019402045) the Department of Education of Hebei Province (Grant No. QN2018076) the U.S. NSF grant EAR1931756