Aeromagnetic Survey Data of the Southern Ross Sea and North Victoria Land

Approximately 17,000 km of aeromagnetic data were collected over the Southern Ross Sea and North Victoria Land in Antarctica during the 1990/1991 GANOVEX VI project. The data were sampled every 10 seconds, corresponding to a 500-meter spatial interval, using a PPM Geometics G 811 instrument. The survey was conducted by the organization SCIOPS to study the break-up of Gondwana and the region's geological evolution.

Use Cases

• Mapping the ocean-continent boundary using magnetic anomaly data collected along flight lines.
• Modeling the break-up of Gondwana by analyzing spatial patterns in the aeromagnetic time-series data.
• Studying the structural features of the Transantarctic Mountains through magnetic field measurements.
• Investigating the geological evolution of the Ross Sea region since the Gondwana break-up using the 500-meter interval survey data.

Strengths

• Approximately 17,000 km of flight line data provides significant spatial coverage.
• Data was sampled at a high temporal resolution of every 10 seconds, corresponding to a 500-meter spatial interval.

Limitations

• The dataset is from a single campaign in 1990/1991, making it temporally limited and potentially outdated for studying recent changes.
• Specific data formats, column structures, and total row counts are unknown, complicating direct analysis.
• Access requires a special arrangement, as data are available only on request, which may hinder immediate use.

Provenance

Source

SCIOPS organization, via the NASA Earthdata platform.

Collection Method

Aeromagnetic survey conducted using a PPM Geometics G 811 instrument aboard an aircraft.

Time Range

1990 to 1991 (specifically the 1990/1991 Antarctic season).

Freshness

Data collection concluded on March 30, 1991; no update frequency is indicated.

Geography

Southern Ross Sea and North Victoria Land, Antarctica.