Testing the timing of radiocarbon-dated events between proxy archives

M. Blaauw, J. A. Christen, Dmitri Mauquoy, J. van Der Plicht, K. D. Bennett

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

For interpreting past changes on a regional or global scale, the timings of proxy-inferred events are usually aligned with data from other locations. However, too often chronological uncertainties are ignored in proxy diagrams and multisite comparisons, making it possible for researchers to fall into the trap of sucking separate events into one illusionary event (or vice versa). Here we largely solve this ‘suck in and smear syndrome’ for radiocarbon (14C) dated sequences. In a Bayesian framework, millions of plausible age-models are constructed to quantify the chronological uncertainties within and between proxy archives. We test the technique on replicated high-resolution 14C-dated peat cores deposited during the ‘Little Ice Age’ (c. AD 1400-1900), a period characterized by abrupt climate changes and severe 14C calibration problems. Owing to internal variability in proxy data and uncertainties in age-models, these (and possibly many more) archives are not consistent in recording decadal climate change. Through explicit statistical tests of palaeoenvironmental hypotheses, we can move forward to systematic interpretations of proxy data. However, chronological uncertainties of non-annually resolved palaeoclimate records are too large for answering decadal timescale questions.
Original languageEnglish
Pages (from-to)283-288
Number of pages6
JournalThe Holocene
Volume17
Issue number2
DOIs
Publication statusPublished - Feb 2007

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climate change
Little Ice Age
paleoclimate
peat
diagram
calibration
timescale
Radiocarbon
Testing
Uncertainty
test
Climate Change
comparison
Statistical Tests
Diagrams
Palaeoclimate
Calibration
Syndrome
Trap
Peat

Cite this

Blaauw, M., Christen, J. A., Mauquoy, D., van Der Plicht, J., & Bennett, K. D. (2007). Testing the timing of radiocarbon-dated events between proxy archives. The Holocene, 17(2), 283-288. https://doi.org/10.1177/0959683607075857

Testing the timing of radiocarbon-dated events between proxy archives. / Blaauw, M.; Christen, J. A.; Mauquoy, Dmitri; van Der Plicht, J.; Bennett, K. D.

In: The Holocene, Vol. 17, No. 2, 02.2007, p. 283-288.

Research output: Contribution to journalArticle

Blaauw, M, Christen, JA, Mauquoy, D, van Der Plicht, J & Bennett, KD 2007, 'Testing the timing of radiocarbon-dated events between proxy archives', The Holocene, vol. 17, no. 2, pp. 283-288. https://doi.org/10.1177/0959683607075857
Blaauw, M. ; Christen, J. A. ; Mauquoy, Dmitri ; van Der Plicht, J. ; Bennett, K. D. / Testing the timing of radiocarbon-dated events between proxy archives. In: The Holocene. 2007 ; Vol. 17, No. 2. pp. 283-288.
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