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Summer precipitation for the England and Wales region, 1201–2000 ce, from stable oxygen isotopes in oak tree rings / Neil Loader, Giles Young, Danny McCarroll, Darren Davies, Daniel Miles, Christopher Bronk Ramsey
Journal of Quaternary Science, Volume: 35, Issue: 6, Pages: 731 - 736
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Oxygen isotope ratios from oak tree rings are used to extend May to August precipitation totals of the England and Wales precipitation series back to 1201CE. The agreement between instrumental and reconstructed values is unusually strong, with more than half of the variance explained and standard ve...
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Oxygen isotope ratios from oak tree rings are used to extend May to August precipitation totals of the England and Wales precipitation series back to 1201CE. The agreement between instrumental and reconstructed values is unusually strong, with more than half of the variance explained and standard verification tests passed. The stability of this relationship is confirmed using split-period calibration and verification. This allows the reconstruction to be variance-scaled to the full length of the instrumental series back to 1766. Direct comparison with historical reports of very wet and dry summers show good agreement. Near-constant replication, with a minimum of ten timbers sourced from historic buildings across central southern England ensures signal strength does not change over time. Summers during the late 20th century appear anomalously dry and those of the 21st century very close to the pre-20th century average with no evidence in the record of prolonged ‘megadroughts’ across England and Wales.
dendrochronology, Holocene, hydroclimate, palaeoclimate, Quercus
College of Science
Natural Environment Research Council (NE/P011527/1), the Leverhulme Trust (RPG-2014-327), Landmark Trust Futures Initiative. / Wiley TA deal (Library).