Law Dome Ice Core Beryllium-10 Data with Revised Chronology

Antarctic ice core data from Law Dome contains high-resolution measurements of the cosmogenic isotope Beryllium-10 (10Be) for climate reconstruction. The dataset, produced by NOAA's National Centers for Environmental Information, covers a period from approximately 49 to 59 calendar years before present with a revised dating model. It was archived and last updated in 2009.

Use Cases

• Reconstruct past solar activity by analyzing the 10Be concentration time series as a proxy for cosmic ray flux.
• Calibrate ice core chronologies by comparing the 10Be peak data with known historical solar events.
• Study atmospheric transport and deposition processes in Antarctica using the high-resolution 10Be record.
• Correlate Antarctic climate signals with other paleoclimate archives using the revised dating of the 10Be data.

Strengths

• High-resolution 10Be measurements suitable for detailed temporal analysis.
• Covers a specific 10-year period (approx. 49-59 BP) with a revised, improved dating model.
• Data is curated and archived by the authoritative NOAA World Data Service for Paleoclimatology.

Limitations

• The dataset's temporal coverage is limited to a specific 10-year window, not a long-term record.
• Data is from a single ice core site (Law Dome), limiting spatial representativeness for Antarctica.
• The dataset was last updated in 2009, and newer data or methodological improvements may exist.

Provenance

Source

NOAA National Centers for Environmental Information (NCEI) World Data Service (WDS) for Paleoclimatology.

Collection Method

Data derived from ice core samples drilled at Law Dome, Antarctica, with laboratory analysis for Beryllium-10 isotopes.

Time Range

Approximately 49 to 59 calendar years before present (BP).

Freshness

Last updated 2009-01-01.

Geography

Law Dome, Antarctica.