Ionospheric absorption data derived from cosmic noise measurements at 30 MHz and 38.2 MHz by riometers. The dataset originates from the Italian Antarctic Base at Terra Nova Bay, with installations beginning in the austral summer of 1993-94 and automatic data acquisition starting in February 1995. It was provided by the organization SCIOPS and last updated in early 2001.
Use Cases
- Analyze temporal patterns of ionospheric absorption using the 30 MHz and 38.2 MHz frequency time-series.
- Compare absorption characteristics between austral summer (human-controlled acquisition) and austral winter (automatic acquisition) periods.
- Model lower ionosphere dynamics by correlating cosmic noise absorption data from the Terra Nova Bay and Eskimo Point stations.
- Study long-term ionospheric changes by examining the data time range starting from the 1993.94 installation.
Strengths
- Provides dual-frequency measurements at 30 MHz and 38.2 MHz for comparative analysis.
- Includes data from multiple locations: Terra Nova Bay and Eskimo Point.
- Covers a multi-year time range with operations beginning in 1993-94.
Limitations
- Data recency is limited, with the last update recorded in 2001.
- Specific sample size, row count, and data completeness metrics are unknown.
- The frequency sampling rate is variable and depends on the acquisition period.
Provenance
- Source
- SCIOPS via NASA Earthdata (nasa_earthdata).
- Collection Method
- Measurements from solid-state riometers with dual dipole antennas.
- Time Range
- From austral summer 1993-94 onward, with noted activity through at least 2001.
- Freshness
- null
- Geography
- Primary location: Terra Nova Bay, Italian Antarctic Base. Secondary location: Eskimo Point.