Antarctic Ionospheric Sounding and Cosmic Noise Absorption Data

Vertical incidence ionosoundings and continuous 30 MHz cosmic noise absorption measurements were recorded at the Belgrano and San Martin stations in Antarctica. Data collection began at Belgrano I Base in 1969, continued at Belgrano II from 1980, and at San Martin Base from 1991, with ongoing operations. The dataset is provided by the organization SCIOPS via NASA's Earthdata platform.

Use Cases

• Analyze time-series trends in ionospheric critical frequency (foF2) from vertical incidence soundings.
• Model cosmic noise absorption levels at 30 MHz to study polar cap absorption events.
• Correlate ionospheric parameters from Belgrano and San Martin stations for comparative regional analysis.
• Investigate long-term ionospheric variability and space weather impacts using multi-decadal records.

Strengths

• Multi-decadal temporal coverage starting from 1969.
• Continuous data collection from two distinct Antarctic stations.
• Includes two complementary measurement types: ionosoundings and cosmic noise absorption.

Limitations

• Specific row count, column names, and data volume are unknown.
• Data from the initial Belgrano I station covers only a 10-year period (1969-1979).
• Potential for data gaps or inconsistencies across different base locations and time periods.

Provenance

Source

SCIOPS, via NASA Earthdata (nasa_earthdata).

Collection Method

Vertical incidence ionosoundings and continuous recording of ionospheric cosmic noise absorption at 30 MHz.

Time Range

From 1969 (Belgrano I) to present, with station-specific start dates.

Freshness

Data collection is described as continuing, but the last update date is unknown.

Geography

Belgrano and San Martin research stations, Antarctica.