A 2000-year annual record of snow accumulation rates for Law Dome in East Antarctica. The record is constructed from the DSS ice core and extensions from overlapping cores, dated by comparing multiple chemical species. The dataset was produced by the Australian Antarctic Data Centre and last updated in 2015.
Use Cases
- Analyze long-term trends in annual snow accumulation rates over two millennia.
- Calibrate climate models by comparing simulated precipitation with the annual accumulation record.
- Reconstruct past atmospheric circulation patterns by correlating the accumulation time-series with other proxy records.
- Study the frequency and magnitude of extreme accumulation events within the 2000-year series.
Strengths
- Covers a 2000-year temporal span.
- Integrates data from multiple overlapping ice cores for a continuous record.
- Uses multiple chemical species for dating to improve chronology.
Limitations
- Data is spatially limited to the Law Dome site in East Antarctica.
- The record ended in 2015 and may not reflect recent climate conditions.
- Uncertainty in annual layer counting may increase with depth/age.
Provenance
- Source
- Australian Antarctic Data Centre (AU_AADC).
- Collection Method
- Derived from ice core analysis (DSS core and extensions), with dating via comparison of multiple chemical species.
- Time Range
- Approximately 2000 years.
- Freshness
- Last updated in 2015.
- Geography
- Law Dome, East Antarctica.