Nepalese Tree Ring Chronology from 391 to -44 BP

NOAA/WDS Paleoclimatology archives a tree-ring chronology from the Langtang region of Nepal. The dataset provides annual-resolution climate proxy data covering 435 years, from 391 to -44 calendar years before present. NOAA National Centers for Environmental Information (NCEI) compiled and published this record, with a last documented update in 1994.

Use Cases

• Reconstruct past temperature or precipitation anomalies by analyzing annual tree-ring width measurements.
• Calibrate climate models for the Himalayan region using the 435-year proxy record as a validation target.
• Study extreme climate events or volcanic impacts by identifying narrow or missing rings within the chronology.
• Assess long-term ecological trends in the Langtang region by examining growth trend data from the tree cores.

Strengths

• Provides a 435-year continuous annual-resolution record (391 to -44 BP).
• Sourced from the authoritative NOAA/NCEI World Data Service for Paleoclimatology.
• Geographically specific to a high-altitude region (Nepal, Southcentral Asia).

Limitations

• Data is temporally stale, with no updates recorded since 1994.
• The exact parameters (e.g., ring-width, density) and sample depth are unspecified in the provided metadata.
• Coverage is limited to a single geographic site, reducing regional representativeness.

Provenance

Source

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

Collection Method

Tree-ring analysis (dendrochronology) of core samples.

Time Range

391 to -44 calendar years before present (BP).

Freshness

null

Geography

Langtang region, Nepal, Southcentral Asia.