Measurement of hydrodynamics and pore water chemistry in intertidal groundwater systems

Gibbes, B., Robinson, C., Li, L. and Lockington, D. (2007). Measurement of hydrodynamics and pore water chemistry in intertidal groundwater systems. In: ICS 2007 Proceedings (Gold Coast, Queensland, Australia). 9th International Coastal Symposium, Gold Coast , Australia, (884-894). 16-20 April, 2007.

Author Gibbes, B.
Robinson, C.
Li, L.
Lockington, D.
Title of paper Measurement of hydrodynamics and pore water chemistry in intertidal groundwater systems
Conference name 9th International Coastal Symposium
Conference location Gold Coast , Australia
Conference dates 16-20 April, 2007
Proceedings title ICS 2007 Proceedings (Gold Coast, Queensland, Australia)   Check publisher's open access policy
Journal name Journal of Coastal Research   Check publisher's open access policy
Place of Publication West Palm Beach, FL, United States
Publisher Coastal Education and Research Foundation
Publication Year 2007
Sub-type Fully published paper
ISSN 0749-0208
Volume Special Issue
Issue 50
Start page 884
End page 894
Total pages 11
Language eng
Abstract/Summary Oceanic forcing due to tides and waves results in complex and dynamic pore water flows in intertidal groundwater systems. In the presence of fresh groundwater discharge these flows are further complicated by variable density effects. The recirculation of seawater through these systems significantly influences the fate and fluxes of subsurface terrestrial contaminants discharging to coastal waters. As a result, understanding the dynamics and variability of the flow, transport and reaction processes in intertidal groundwater systems is crucial for accurate predictions of chemical loading to the receiving coastal ecosystem. Measurements of pore water flows and chemistry in the intertidal region are difficult due to the various forces acting on the system, each of which operate over a wide range of spatial and temporal scales. In this paper we provide a review of monitoring techniques that are applicable to sandy intertidal groundwater systems. In particular we focus on relatively inexpensive equipment, based on commercially available pressure transducers and water quality probes, which have been successfully employed to collect simultaneous hydrodynamic and chemical data. Results from two recent field investigations are presented to illustrate the range of measurements which can be obtained.
Subjects 090509 Water Resources Engineering
0905 Civil Engineering
Keyword Subterranean estuary
Coastal aquifer
Groundwater dynamics
Pore water
Measurement techniques
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

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