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A global database of Holocene paleotemperature records
Darrell Kaufman1, Nicholas McKay2, Cody Routson2
1Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, 86011, USA. darrell.kaufman@nau.edu.
Scientists created a global database of Holocene paleoclimate records spanning 12,000 years. This resource aids understanding of recent warming within natural climate variability using temperature-sensitive proxy data.
Area of Science:
- Paleoclimatology
- Climate Science
- Earth System Science
Background:
- Understanding long-term climate variability is crucial for contextualizing current warming trends.
- A comprehensive, global database of paleoclimate records is essential for robust analysis.
Purpose of the Study:
- To present a quality-controlled, global compilation of temperature-sensitive paleoclimate proxy records covering the Holocene epoch (12,000 years).
- To provide a publicly accessible database for reconstructing Holocene temperature evolution at various scales.
Main Methods:
- Compiled published, temperature-sensitive proxy records from 679 sites globally.
- Included data from diverse archives (lake/marine sediment, peat, ice) with sub-millennial resolution and defined age control.
- Ensured data quality and accessibility in Linked Paleo Data (LiPD) format.
Main Results:
- The database contains 1319 paleotemperature time series extending back 12,000 years.
- Records are derived from multiple natural archives, with a significant portion from lake and marine sediments.
- Includes 157 records from the Southern Hemisphere, enhancing global coverage.
Conclusions:
- The compiled database offers an unprecedented resource for studying Holocene climate dynamics and natural variability.
- Facilitates research into the spatiotemporal patterns of temperature change over the last 12,000 years.
- Public availability in LiPD format promotes widespread use in climate research.
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