Temperature-Corrected Levelling Observations at Australia's Antarctic Stations

Australia's three Antarctic stations and Macquarie Island are the focus of this report on levelling observations. The dataset contains corrected results for thermal contraction, comparing measurements from fibreglass or aluminium staffs to invar staffs where possible. Matt King of the University of Tasmania prepared the report in June 2000 and revised it in November 2000.

Use Cases

• Analyzing the impact of thermal contraction on levelling measurements based on the described temperature corrections.
• Comparing the performance of different levelling staff materials (fibreglass, aluminium, invar) in Antarctic conditions.
• Assessing systematic errors in geodetic observations for specific Antarctic station locations like Casey, Davis, and Mawson.
• Validating historical levelling data from the year 2000 for long-term crustal motion studies in the region.

Strengths

• Focuses on a specific, challenging environment: Antarctic conditions at three stations and Macquarie Island.
• Includes corrected results for a key systematic error: thermal contraction of levelling equipment.
• Provides a direct comparison between different measurement instruments (fibreglass/aluminium vs. invar staffs).

Limitations

• Last updated 2000-11-01 23:59:59.999000; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Matt King, University of Tasmania, via AU_AADC and NASA EarthData.

Collection Method

Levelling observations and subsequent analysis and correction, as described in the report.

Time Range

Observations likely circa 2000, with report revisions in June and November 2000.

Freshness

2000-11-01 23:59:59.999000

Geography

Australia's Antarctic stations (Casey, Davis, Mawson) and Macquarie Island.