Ice core measurements of atmospheric methane concentrations from the Law Dome site in Antarctica. The data coverage spans from 942 to -42 calendar years before present. This archived paleoclimatology study is provided by the NOAA National Centers for Environmental Information.
Use Cases
- Analyze trends in methane concentration over a ~1000-year period to study natural pre-industrial variability.
- Correlate methane time-series data with other ice core parameters like carbon dioxide or isotopic ratios to investigate climate feedbacks.
- Use the calendar years before present (BP) timeline to align this methane record with other paleoclimate archives for synchronized analysis.
Strengths
- Time period coverage spans approximately 984 calendar years (from 942 to -42 BP).
- Data originates from a curated NOAA/NCEI World Data Service archive, ensuring formal stewardship.
Limitations
- The dataset's last known update was in 1992, making it temporally stale relative to modern ice core research.
- Specific sample count, measurement resolution, and uncertainty metrics for the methane parameter are unknown.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI) World Data Service (WDS) for Paleoclimatology.
- Collection Method
- Data derived from ice core samples extracted from the Law Dome site.
- Time Range
- 942 to -42 calendar years before present (BP).
- Freshness
- null
- Geography
- Antarctica (specific Law Dome location).