Antarctic Sea Ice Thickness Models Using Electromagnetic Induction

Numerical models simulate the response of an EM31 electromagnetic instrument to sea ice structures. The dataset contains outputs from one- and three-dimensional modelling of factors like ice conductivity and thickness. The project was conducted by the Australian Antarctic Data Centre, with results finalized around 2001.

Use Cases

• Validate EM31 instrument sensitivity to ice conductivity and thickness parameters from the model outputs.
• Assist interpretation of existing sea-ice thickness data from the 1999/2000 Mertz Glacier polynya cruise using the theoretical results.
• Analyze the impact of instrument height and orientation on electromagnetic measurements using the 3D model calculations.

Strengths

• Results are based on theoretical analysis using specialized software (Marco_air v2.3) for 3D modelling.
• Project focuses on improving a specific, established measurement technique (ship-based EM induction).

Limitations

• Dataset size, row count, and specific column structure are unknown.
• Data is temporally stale, with last update recorded in 2001.

Provenance

Source

Australian Antarctic Data Centre (AU_AADC), ASAC Project 1212.

Collection Method

Numerical modelling of electromagnetic instrument response using custom and CSIRO software.

Time Range

Project finalized circa 2001.

Geography

Mertz Glacier polynya region, Antarctica.