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IntCal13 AND Marine13 radiocarbon age calibration curves 0–50,000 years cal BP

Research output: Contribution to journalArticle

  • Paula J Reimer
  • Edouard Bard
  • Alex Bayliss
  • J Warren Beck
  • Paul G Blackwell
  • Christopher Bronk Ramsey
  • Caitlin E Buck
  • Hai Cheng
  • R Lawrence Edwards
  • Michael Friedrich
  • Pieter M Grootes
  • Thomas P Guilderson
  • Haflidi Haflidison
  • Irka Hajdas
  • Christine Hatté
  • Timothy J Heaton
  • Dirk L Hoffmann
  • Alan G Hogg
  • Konrad A Hughen
  • K Felix Kaiser
  • Bernd Kromer
  • Sturt W Manning
  • Mu Niu
  • Ron W Reimer
  • David A Richards
  • E Marion Scott
  • John R Southon
  • Richard A Staff
  • Christian SM Turney
  • Johannes van der Plicht
Original languageEnglish
Pages (from-to)1869-1887
Issue number4
DatePublished - 2013


The IntCal09 and Marine09 radiocarbon calibration curves have been revised utilizing newly available and updated data sets from 14C measurements on tree rings, plant macrofossils, speleothems, corals, and foraminifera. The calibration
curves were derived from the data using the random walk model (RWM) used to generate IntCal09 and Marine09, which has been revised to account for additional uncertainties and error structures. The new curves were ratified at the 21st International Radiocarbon conference in July 2012 and are available as Supplemental Material at The database can be accessed at


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