Major Ion Chemistry of Ten Antarctic Saline Lakes

Antarctica's Vestfold Hills region provides 41 water samples from 10 saline lakes. The dataset contains measured and calculated parameters for major ions, density, and salinity. It was published by the Australian Antarctic Data Centre in 1989.

Use Cases

• Model brine density at 20°C using chlorinity or absolute salinity values.
• Analyze ion balance error to assess the internal consistency of major anion and cation measurements.
• Calculate empirical composition-chlorinity relations for Vestfold Hills brines using the provided ion concentration data.
• Compare the accuracy of M(II) concentration derived from potentiometric titration versus photometric titration data.

Strengths

• Contains 41 distinct water samples from 10 different lakes, providing a comparative view.
• Includes multiple calculated parameters like ion balance error and absolute salinity for direct analysis.
• Reports key ion concentrations in both mol/kg and g/kg units for flexibility.

Limitations

• Small sample size of 41 records limits statistical power for broad generalizations.
• Data is from a single collection period in 1989, offering no temporal trend analysis.
• Geographic scope is restricted to 10 lakes in the Vestfold Hills, Antarctica.

Provenance

Source

Australian Antarctic Data Centre (AU_AADC) via NASA Earthdata.

Collection Method

Field sampling and laboratory analysis including potentiometric titration, gravimetry, photometric titration, flame-AAS, and flame-AES.

Time Range

1989

Geography

Vestfold Hills, Antarctica.