A 1997 study contains oxygen isotope analyses from ice cores drilled at the Big Dome Summit and other sites on the Collins Ice Cap, King George Island, Antarctica. The dataset includes 87 samples from a 0-13.96m depth interval and 30 additional samples from deeper intervals and other firn sites. Data collection was conducted by research groups at the University of New Hampshire and Nanjing University.
Use Cases
- Analyze oxygen isotope ratios to reconstruct past temperature and precipitation records for King George Island.
- Compare isotopic signatures from different sampling depths (e.g., 0-13.96m vs. 27.78-30.52m) to study climate variability over time.
- Investigate spatial climate patterns by comparing data from the Big Dome Summit with samples from sites like Small Dome Top (SDT).
- Calibrate ice core dating models using the known sampling intervals (15-20cm, 30-130cm) and sample counts from specific depth ranges.
Strengths
- Includes 117 total oxygen isotope samples from multiple Antarctic sites.
- Specifies precise sampling intervals ranging from 10cm to 130cm for different core sections.
- Documents strict sample handling protocols to minimize contamination and melting.
Limitations
- Small sample size of 117 measurements limits statistical power for detailed trend analysis.
- Data is from a single preliminary study in 1997 and may not reflect current conditions.
- Limited metadata; specific column names, measurement units, and raw data values are unknown.
Provenance
- Source
- SCIOPS, with analyses performed by the University of New Hampshire and Nanjing University.
- Collection Method
- Ice cores drilled using a BZXJ-model drill, with samples cut, scraped, and analyzed for oxygen isotopes in laboratory settings.
- Time Range
- null
- Freshness
- null
- Geography
- Collins Ice Cap, Big Dome Summit, and other sites (BDA, BDB, BDC, Small Dome Top) on King George Island, Antarctica.