Ice core and snow pit samples from Dome C, Antarctica, were used to measure the cosmogenic radionuclide 32Si. The data likely contains measurements of 32Si concentration over time, enabling analysis of depositional variation and precise determination of its half-life. The dataset was collected by SCIOPS and sourced from the NASA EarthData platform.
Use Cases
- Calibrating radiometric dating methods based on the measured half-life of 32Si.
- Analyzing temporal patterns of cosmogenic radionuclide deposition over the last century based on snow pit samples.
- Assessing human influences on climate by dating mountain glacier ice in the 100-1000 year range.
- Determining past climate forcing and response based on proxies stored in ice cores.
Strengths
- Samples provide high age resolution for the last 100 years from a 6-meter deep snow pit.
- Ice cores from Dome C cover long time periods due to its low snow accumulation rate of 2cm water equivalent per year.
- The dataset addresses a previously unmet need for dating mountain glacier ice in the 100-1000 year range.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data may reflect geographic bias inherent to the single Antarctic site, Dome C.
Provenance
- Source
- SCIOPS
- Collection Method
- Samples collected from a 6m deep snow pit and two ice cores drilled at Dome C.
- Time Range
- Likely covers the last 100 years, with ice cores potentially covering longer periods.
- Geography
- Dome C, Antarctica.