The Effect of Geofiltration Heterogeneity of Bottom Sediments on Groundwater Discharge in a Small River Basin under Natural and Disturbed Conditions

The Effect of Geofiltration Heterogeneity of Bottom Sediments on Groundwater Discharge in a Small... A regional model of a small river basin with a catchment area of approximately 1000 km2 is considered. The model was developed to evaluate the possible influence of groundwater intake on river runoff. The model is calibrated to the measured levels of groundwaters and discharges of this river. Geophysical and hydrometric surveys have allowed us to characterize the heterogeneity of the conductivity of the bottom sediments along the riverbed. The reduction in the river discharge considering this heterogeneity is greater by 25% than the reduction in the discharge calculated without taking it into account. Thus, consideration of the heterogeneity of bottom sediments for more reliable estimation of an influence of water intakes on the environment is recommended. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Moscow University Geology Bulletin Springer Journals

The Effect of Geofiltration Heterogeneity of Bottom Sediments on Groundwater Discharge in a Small River Basin under Natural and Disturbed Conditions

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Allerton Press, Inc.
Subject
Earth Sciences; Geology
ISSN
0145-8752
eISSN
1934-8436
D.O.I.
10.3103/S0145875218020096
Publisher site
See Article on Publisher Site

Abstract

A regional model of a small river basin with a catchment area of approximately 1000 km2 is considered. The model was developed to evaluate the possible influence of groundwater intake on river runoff. The model is calibrated to the measured levels of groundwaters and discharges of this river. Geophysical and hydrometric surveys have allowed us to characterize the heterogeneity of the conductivity of the bottom sediments along the riverbed. The reduction in the river discharge considering this heterogeneity is greater by 25% than the reduction in the discharge calculated without taking it into account. Thus, consideration of the heterogeneity of bottom sediments for more reliable estimation of an influence of water intakes on the environment is recommended.

Journal

Moscow University Geology BulletinSpringer Journals

Published: Jun 1, 2018

References

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