Technical note: Open-paleo-data implementation pilot – the PAGES 2k special issue

Kaufman, Darrell S.

doi:10.5194/cp-14-593-2018

Cited by 10 publications

(19 citation statements)

References 19 publications

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“…For example, cross-checking on nomenclature used to assign dated years as astronomical dates (including a "year 0" BC) or as AD/BC with no zero year, and making sure there is a clear statement of this associated with the submitted data, metadata, dissected samples and remnant material (retained at the tree ring host institution). As for all IntCal data the aim is to move towards improved data stewardship and public archiving or open access in line with recent standards (Kaufman et al 2018). By standardizing the criteria required for the preparation of tree-ring samples for annual 14 C analysis and the submission of these data and metadata to IntCal the aim is to ensure the very best compliance in open-data standards.…”

Section: Future Directionsmentioning

confidence: 99%

The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (0–55 cal kBP)

et al. 2020

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Radiocarbon (14C) ages cannot provide absolutely dated chronologies for archaeological or paleoenvironmental studies directly but must be converted to calendar age equivalents using a calibration curve compensating for fluctuations in atmospheric 14C concentration. Although calibration curves are constructed from independently dated archives, they invariably require revision as new data become available and our understanding of the Earth system improves. In this volume the international 14C calibration curves for both the Northern and Southern Hemispheres, as well as for the ocean surface layer, have been updated to include a wealth of new data and extended to 55,000 cal BP. Based on tree rings, IntCal20 now extends as a fully atmospheric record to ca. 13,900 cal BP. For the older part of the timescale, IntCal20 comprises statistically integrated evidence from floating tree-ring chronologies, lacustrine and marine sediments, speleothems, and corals. We utilized improved evaluation of the timescales and location variable 14C offsets from the atmosphere (reservoir age, dead carbon fraction) for each dataset. New statistical methods have refined the structure of the calibration curves while maintaining a robust treatment of uncertainties in the 14C ages, the calendar ages and other corrections. The inclusion of modeled marine reservoir ages derived from a three-dimensional ocean circulation model has allowed us to apply more appropriate reservoir corrections to the marine 14C data rather than the previous use of constant regional offsets from the atmosphere. Here we provide an overview of the new and revised datasets and the associated methods used for the construction of the IntCal20 curve and explore potential regional offsets for tree-ring data. We discuss the main differences with respect to the previous calibration curve, IntCal13, and some of the implications for archaeology and geosciences ranging from the recent past to the time of the extinction of the Neanderthals.

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Section: Future Directionsmentioning

confidence: 99%

The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (0–55 cal kBP)

et al. 2020

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“…Affiliated journals could use their leverage to promote more stringent reporting standards. As an example, the recent PAGES 2k special issue of the journal Climate of the Past piloted the implementation of open‐data practices, which included some reporting standards, and reported the challenges faced when requiring such practices (Kaufman et al, ). Another avenue for promoting best practices, including adoption of reporting standards, is through professional paleoscience organizations such as PAGES and INQUA.…”

Section: Discussionmentioning

confidence: 99%

PaCTS 1.0: A Crowdsourced Reporting Standard for Paleoclimate Data

Khider

Emile‐Geay

McKay

et al. 2019

Paleoceanog and Paleoclimatol

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The progress of science is tied to the standardization of measurements, instruments, and data. This is especially true in the Big Data age, where analyzing large data volumes critically hinges on the data being standardized. Accordingly, the lack of community‐sanctioned data standards in paleoclimatology has largely precluded the benefits of Big Data advances in the field. Building upon recent efforts to standardize the format and terminology of paleoclimate data, this article describes the Paleoclimate Community reporTing Standard (PaCTS), a crowdsourced reporting standard for such data. PaCTS captures which information should be included when reporting paleoclimate data, with the goal of maximizing the reuse value of paleoclimate data sets, particularly for synthesis work and comparison to climate model simulations. Initiated by the LinkedEarth project, the process to elicit a reporting standard involved an international workshop in 2016, various forms of digital community engagement over the next few years, and grassroots working groups. Participants in this process identified important properties across paleoclimate archives, in addition to the reporting of uncertainties and chronologies; they also identified archive‐specific properties and distinguished reporting standards for new versus legacy data sets. This work shows that at least 135 respondents overwhelmingly support a drastic increase in the amount of metadata accompanying paleoclimate data sets. Since such goals are at odds with present practices, we discuss a transparent path toward implementing or revising these recommendations in the near future, using both bottom‐up and top‐down approaches.

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“…A major product of Phase 2 was a special issue of Climate of the Past titled "Climate of the past 2000 years: regional and trans-regional syntheses". This special issue also focused on putting into practice open-access data stewardship principles (Kaufman et al 2018).…”

Section: Evolution Of the 2k Networkmentioning

confidence: 99%

Global climate goes regional, and vice versa: Reflecting on 14 years of the PAGES 2k Network

2021

PAGES Mag

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Technical note: Open-paleo-data implementation pilot – the PAGES 2k special issue

Cited by 10 publications

References 19 publications

The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (0–55 cal kBP)

The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (0–55 cal kBP)

PaCTS 1.0: A Crowdsourced Reporting Standard for Paleoclimate Data

Global climate goes regional, and vice versa: Reflecting on 14 years of the PAGES 2k Network

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