Tasmanian Tree Ring Chronology from 892 to 42 BCE

A 934-year tree-ring chronology from Lake Marilyn Low in Tasmania, Australia, covering the period from 892 to -42 calendar years before present. This paleoclimatology dataset was archived by NOAA's National Centers for Environmental Information. The data was last updated in the repository in 1992.

Use Cases

• Reconstruct past temperature or precipitation anomalies in Tasmania using annual tree-ring width measurements.
• Calibrate and validate climate models for the Southern Hemisphere using a multi-century proxy record.
• Analyze the frequency of extreme climatic events, such as droughts, within the 934-year chronology.
• Cross-date and synchronize this chronology (ITRDB AUSL023) with other regional tree-ring records to build a broader climate network.

Strengths

• Covers a 934-year time period (892 to -42 BP), providing a long-term climate proxy.
• Archived and maintained by the authoritative NOAA World Data Service for Paleoclimatology.

Limitations

• Data recency is low, with a last repository update in 1992, potentially missing newer methodological refinements.
• Geographic scope is limited to a single site in Tasmania, which may not represent broader regional climate.

Provenance

Source

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

Collection Method

Tree ring analysis (dendrochronology).

Time Range

892 to -42 calendar years before present (BP).

Freshness

null

Geography

Lake Marilyn Low, Tasmania, Australia.