Antarctic Permeable Reactive Barrier Hydraulic Tracer Test Results

AU_AADC collected hydraulic conductivity and retention time data for a permeable reactive barrier at Casey Station. The dataset contains results from non-reactive sodium chloride tracer tests conducted in January 2013 and January 2014. It includes measurements from multiport sampling points at 700 mm depth, with calculations for fluid age and conductivity distribution.

Use Cases

• Calculate mean fluid age and retention time from conductivity distribution data recorded at multiport sampling points.
• Compare hydraulic conductivity between the trial media sequence installed in 2013 and the pre-existing material using 2013 and 2014 tracer test results.
• Analyze the dispersion of a sodium chloride tracer pulse over time from measurements of electrical conductivity (EC).
• Assess the impact of sampling depth modification (600 mm vs. 700 mm) on data from multiports 6 and 11 in the 2014 assessment.

Strengths

• Tracer tests conducted over two consecutive monitoring seasons (2013, 2014) for comparative analysis.
• Sampling method was consistent, using specified multiports at a standard depth of 700 mm.
• Tracer source parameters are specified: sodium chloride at ~50 mS cm-1 pumped at 0.83 L s-1 for five minutes.

Limitations

• Specific row count, column names, and sample data are unavailable for review.
• Dataset scope is limited to a single barrier at one Antarctic station.
• Minor methodological inconsistency in 2014 where two multiports were sampled at 600 mm instead of 700 mm.

Provenance

Source

AU_AADC (Australian Antarctic Data Centre).

Collection Method

Non-reactive sodium chloride tracer tests with EC measurements from multiport samplers, using a TPS WP-81 meter.

Time Range

Tracer tests conducted on 2013-01-22 and 2014-01-16.

Freshness

Data collection concluded on 2014-01-16.

Geography

Casey Station Main Power House, Antarctica.