An autonomous, electromagnetic seepage meter to study coastal groundwater/surface-water exchange

2004 ◽  
Author(s):  
Peter W. Swarzenski ◽  
Matt Charette ◽  
Christian David Langevin
Keyword(s):  
Surface Water ◽  
Water Exchange ◽  
Coastal Groundwater ◽  
Seepage Meter

scholarly journals The effect of streambed heterogeneity on groundwater-surface water exchange fluxes inferred from temperature time series

2015 ◽  
Vol 51 (1) ◽  
pp. 198-212 ◽  
Author(s):  
Dylan J. Irvine ◽  
Roger H. Cranswick ◽  
Craig T. Simmons ◽  
Margaret A. Shanafield ◽  
Laura K. Lautz
Keyword(s):  
Time Series ◽  
Surface Water ◽  
Water Exchange ◽  
Temperature Time Series ◽  
Temperature Time ◽  
Streambed Heterogeneity

ALLUVIAL CHARACTERISTICS, GROUNDWATER–SURFACE WATER EXCHANGE AND HYDROLOGICAL RETENTION IN HEADWATER STREAMS

1997 ◽  
Vol 11 (3) ◽  
pp. 253-267 ◽  
Author(s):  
JOHN A. MORRICE ◽  
H. MAURICE VALETT ◽  
CLIFFORD N. DAHM ◽  
MICHAEL E. CAMPANA
Keyword(s):  
Surface Water ◽  
Water Exchange ◽  
Headwater Streams

Groundwater–surface water exchange associated metals at two intertidal transects, Dan’ao Estuary, Daya Bay, China

2018 ◽  
Vol 25 (29) ◽  
pp. 29663-29677 ◽  
Author(s):  
Gang Li ◽  
Hailong Li ◽  
Xuejing Wang ◽  
Wenjing Qu ◽  
Yan Zhang
Keyword(s):  
Surface Water ◽  
Water Exchange ◽  
Daya Bay

scholarly journals Interannual Coral Δ 14 C Records of Surface Water Exchange Across the Luzon Strait

2019 ◽  
Vol 124 (1) ◽  
pp. 491-505 ◽  
Author(s):  
R. D. Ramos ◽  
N. F. Goodkin ◽  
E. R. M. Druffel ◽  
T. Y. Fan ◽  
F. P. Siringan
Keyword(s):  
Surface Water ◽  
Water Exchange ◽  
Luzon Strait

scholarly journals Investigating patterns and controls of groundwater up-welling in a lowland river by combining Fibre-optic Distributed Temperature Sensing with observations of vertical hydraulic gradients

2012 ◽  
Vol 16 (6) ◽  
pp. 1775-1792 ◽  
Author(s):  
S. Krause ◽  
T. Blume ◽  
N. J. Cassidy
Keyword(s):  
Surface Water ◽  
Water Exchange ◽  
Structural Heterogeneity ◽  
Temperature Sensing ◽  
Small Scale ◽  
Lowland River ◽  
Fibre Optic ◽  
Distributed Temperature Sensing ◽  
Hydraulic Gradients ◽  
Cold Spots

Abstract. This paper investigates the patterns and controls of aquifer–river exchange in a fast-flowing lowland river by the conjunctive use of streambed temperature anomalies identified with Fibre-optic Distributed Temperature Sensing (FO-DTS) and observations of vertical hydraulic gradients (VHG). FO-DTS temperature traces along this lowland river reach reveal discrete patterns with "cold spots" indicating groundwater up-welling. In contrast to previous studies using FO-DTS for investigation of groundwater–surface water exchange, the fibre-optic cable in this study was buried in the streambed sediments, ensuring clear signals despite fast flow and high discharges. During the observed summer baseflow period, streambed temperatures in groundwater up-welling locations were found to be up to 1.5 °C lower than ambient streambed temperatures. Due to the high river flows, the cold spots were sharp and distinctly localized without measurable impact on down-stream surface water temperature. VHG patterns along the stream reach were highly variable in space, revealing strong differences even at small scales. VHG patterns alone are indicators of both, structural heterogeneity of the stream bed as well as of the spatial heterogeneity of the groundwater–surface water exchange fluxes and are thus not conclusive in their interpretation. However, in combination with the high spatial resolution FO-DTS data we were able to separate these two influences and clearly identify locations of enhanced exchange, while also obtaining information on the complex small-scale streambed transmissivity patterns responsible for the very discrete exchange patterns. The validation of the combined VHG and FO-DTS approach provides an effective strategy for analysing drivers and controls of groundwater–surface water exchange, with implications for the quantification of biogeochemical cycling and contaminant transport at aquifer–river interfaces.

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