2015
DOI: 10.1016/j.jhydrol.2015.09.046
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Automated image analysis for experimental investigations of salt water intrusion in coastal aquifers

Abstract: General rights Copyright for the publications made accessible via the Queen's University Belfast Research Portal is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal requirements associated with these rights. Abstract 10A novel methodology has been developed to quantify important saltwater intrusion parameters in a 11 sandbox experiment using image analysis. Existing methods found in the literature are ba… Show more

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Cited by 41 publications
(58 citation statements)
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References 24 publications
(5 reference statements)
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“…The sandbox and instrumentation used in the experiment are described in Robinson et al (2015). The tank consisted of a central viewing chamber of dimensions (Length x Height x Depth) 0.38 m x 0.15 m x 0.01 m made from clear Perspex, and flanked by two large chambers at either side to provide the hydrostatic pressure boundary conditions.…”
Section: Experimental Setup and Test Casesmentioning
confidence: 99%
See 1 more Smart Citation
“…The sandbox and instrumentation used in the experiment are described in Robinson et al (2015). The tank consisted of a central viewing chamber of dimensions (Length x Height x Depth) 0.38 m x 0.15 m x 0.01 m made from clear Perspex, and flanked by two large chambers at either side to provide the hydrostatic pressure boundary conditions.…”
Section: Experimental Setup and Test Casesmentioning
confidence: 99%
“…Ten images were taken each time the camera was triggered (every 30 seconds) and the average of these images was used in the analysis. The light intensity-concentration conversion is determined through a calibration procedure, which is discussed in detail in Robinson et al (2015).…”
Section: Experimental Setup and Test Casesmentioning
confidence: 99%
“…Recently, Robinson et al (2015) proposed an automated image analysis approach based on a pixel-wise regression method, which provided low errors in converting light intensity to concentration, and allowed for the analysis of density variations across the saltwaterfreshwater interface. The main disadvantage of the pixel-wise regression method is that the calibration is entirely specific to the test domain.…”
Section: Introductionmentioning
confidence: 99%
“…A new calibration was required for each test case, even for homogeneous cases of the same bead diameter. In the case of Robinson et al (2015) the calibration process took at least 4 h to complete, and contributed significantly to the 7-12 h required for preparing each domain for testing. For larger scale experiments the calibration process could be considerably longer.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation