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Raimund Muscheler

Raimund Muscheler


Raimund Muscheler

Development of the Intcal Database


  • Christopher Bronk Ramsey
  • Florian Adolphi
  • William Austin
  • Edouard Bard
  • Alex Bayliss
  • Maarten Blaauw
  • Hai Cheng
  • R. Lawrence Edwards
  • Michael Friedrich
  • Timothy Heaton
  • Alan Hogg
  • Quan Hua
  • Konrad Hughen
  • Bernd Kromer
  • Sturt Manning
  • Raimund Muscheler
  • Jonathan Palmer
  • Charlotte Pearson
  • Paula Reimer
  • Ron Reimer
  • David Richards
  • Marian Scott
  • John Southon
  • Chris Turney
  • Lukas Wacker

Summary, in English

The IntCal family of radiocarbon (14C) calibration curves is based on research spanning more than three decades. The IntCal group have collated the 14C and calendar age data (mostly derived from primary publications with other types of data and meta-data) and, since 2010, made them available for other sorts of analysis through an open-access database. This has ensured transparency in terms of the data used in the construction of the ratified calibration curves. As the IntCal database expands, work is underway to facilitate best practice for new data submissions, make more of the associated metadata available in a structured form, and help those wishing to process the data with programming languages such as R, Python, and MATLAB. The data and metadata are complex because of the range of different types of archives. A restructured interface, based on the "IntChron"open-access data model, includes tools which allow the data to be plotted and compared without the need for export. The intention is to include complementary information which can be used alongside the main 14C series to provide new insights into the global carbon cycle, as well as facilitating access to the data for other research applications. Overall, this work aims to streamline the generation of new calibration curves.


  • Quaternary Sciences
  • MERGE: ModElling the Regional and Global Earth system
  • BECC: Biodiversity and Ecosystem services in a Changing Climate

Publishing year






Document type

Journal article


Arizona Board of Regents (University of Arizona)


  • Other Computer and Information Science


  • calibration
  • database
  • dating
  • dendrochronology
  • radiocarbon




  • ISSN: 0033-8222