1834 annual mean water isotope (d18O) measurements span from 174 A.D. to 2007 A.D. The record was produced by the Australian Antarctic Data Centre (AU_AADC) for projects AAS 757 and AAS 4061, with the dataset last updated in December 2007.
Use Cases
- Analyze d18O trends over 1834 years to reconstruct past temperature variations.
- Calibrate climate models by comparing the d18O time-series against other proxy records.
- Study decadal to centennial-scale climate events within the record's temporal range.
Strengths
- Record provides 1834 years of continuous annual data.
- Measurements are derived from Isotope Ratio Mass Spectrometers, a standard analytical method.
Limitations
- Data is temporally stale, with the last update in 2007 and no recent measurements.
- The record is geographically specific to the Law Dome, Antarctica site, limiting global representativeness.
Provenance
- Source
- Australian Antarctic Data Centre (AU_AADC) via NASA Earthdata.
- Collection Method
- d18O measurements from the DSS ice core and extensions, dated by comparing multiple chemical species and water isotopes.
- Time Range
- 174 A.D. to 2007 A.D.
- Freshness
- null
- Geography
- Law Dome, Antarctica (Dome Summit South site).