Guidelines for reporting and archiving 210Pb sediment chronologies to improve fidelity and extend data lifecycle

Mustaphi, Colin J. Courtney; Brahney, Janice; Aquino‐López, Marco A.; Goring, Simon; Orton, Kiersten; Noronha, Alexandra; Czaplewski, John; Asena, Quinn; Paton, Sarah; Brushworth, Johnny Panga

doi:10.1016/j.quageo.2019.04.003

Cited by 15 publications

(7 citation statements)

References 70 publications

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“…As metadata are required to extend the data life cycle and promote knowledge integration by the community, a minimum reporting guideline has been recently suggested for short-lived radionuclides (Bruel and Sabatier, 2020;Courtney Mustaphi et al, 2019). Among them, the sampling year is one of the most important, and it was reported in 92 % of publications.…”

Section: Metadata and Core Collectionmentioning

confidence: 99%

A worldwide meta-analysis (1977–2020) of sediment core dating using fallout radionuclides including 137Cs and 210Pbxs

Foucher

Chaboche

Sabatier

et al. 2021

Earth Syst. Sci. Data

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Abstract. Dating recent sediment archives (< 150 years) constitutes a prerequisite for environmental and climatic reconstructions. Radiocaesium (137Cs) emitted during thermonuclear bomb testing (∼ 1950–1980) and nuclear accidents and the decrease in excess lead-210 (210Pbxs) with depth are often combined to establish sediment core chronology. Although these methods have been widely used during the last several decades, there is a lack of structured and comprehensive worldwide synthesis of fallout radionuclide analyses used for dating sediment cores in environmental and Earth sciences. The current literature overview was based on the compilation of 573 articles published between 1977 and 2020, reporting the collection of 1351 individual dating sediment cores (the dataset can be accessed at https://doi.org/10.1594/PANGAEA.931493; Foucher et al., 2021). This review was conducted in order to map the locations where 137Cs fallout events were detected. These included the thermonuclear bomb testing peak in 1963, the Chernobyl accident in 1986, the Fukushima accident in 2011, and 24 additional events identified at 112 sites that led to local or regional radioactive releases (e.g., Sellafield accidents, Chinese nuclear tests). When 210Pbxs records were used along with 137Cs data, detailed information on the 210Pbxs age–depth models were also synthesized. With the current growing number of studies analyzing sediment cores and the increasing interest in the deployment of sediment fingerprinting techniques including radionuclides as potential discriminant properties, this spatialized synthesis provides a unique worldwide compilation for characterizing fallout radionuclide sources and levels at the global scale. This synthesis provides in particular a reference of 137Cs peak attribution for improving the sediment core dating, and it outlines the main questions that deserve attention in future research as well as the regions where additional 137Cs fallout investigations should be conducted in priority.

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Section: Metadata and Core Collectionmentioning

confidence: 99%

A worldwide meta-analysis (1977–2020) of sediment core dating using fallout radionuclides including 137Cs and 210Pbxs

Foucher

Chaboche

Sabatier

et al. 2021

Earth Syst. Sci. Data

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“…In accordance with best practices for reporting reproducible excess 210 Pb-derived accumulation rates (Mustaphi et al, 2019), all relevant data are maintained by the Smithsonian Environmental Research Center's Coastal Carbon Research Coordination Network and available at doi.org/10.25573/serc.11317820.…”

Section: Radionuclide Analysismentioning

confidence: 99%

Controls on Sediment Accretion and Blue Carbon Burial in Tidal Saline Wetlands: Insights From the Oregon Coast, USA

2020

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Oregon estuaries provide important opportunities to assess controls on tidal saline wetland carbon burial and sediment accretion as both rates of relative sea level rise (RSLR; −1.4 ± 0.9 to 2.8 ± 0.8 mm yr−1) and fluvial suspended sediment load relative to estuary area (0.23 to 17 × 103 t km−2 yr−1) vary along the coast. We hypothesized that vertical accretion, measured using excess 210Pb in least‐disturbed wetlands within seven Oregon estuaries, would vary with either RSLR or sediment load relative to estuary area, and carbon burial would correlate strongly to sediment accretion. Mean rates of high marsh accretion (0.8 ± 0.2 to 4.1 ± 0.2 mm yr−1) indicate that Oregon tidal wetlands have mainly kept pace with twentieth‐century RSLR with the exception that the accretionary balance in the central coast is negative, suggesting drowning. Experiencing the fastest rates of RSLR, central‐coast estuaries may foreshadow the fates of other Oregon estuaries under future accelerated sea level rise. Comparison of mass accumulation rates with sediment loads, however, indicates low trapping efficiency and therefore no fluvial sediment limitation. Thus, nonlinear feedback between RSLR and sediment accretion may enhance wetland resistance to drowning. Among wetlands keeping pace with or exceeding RSLR, sediment accretion displays no significant relationship with elevation but rather appears controlled by both the rate of RSLR and relative sediment load, highlighting the importance of incorporating both factors into future studies of tidal saline wetlands. Carbon burial rates, controlled by sediment accretion, will likely increase with future accelerated sea level rise.

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“…PaCTS v1.0 is also missing several proxy systems, including loess and continental records, faunal and floral counts in lake sediments, and does not incorporate recent standards such as the one developed by Courtney Mustaphi et al () for 210 Pb dating. Finally, although cross pollination was encouraged, common properties were not adequately identified across WGs, resulting in duplicates.…”

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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Guidelines for reporting and archiving 210Pb sediment chronologies to improve fidelity and extend data lifecycle

Cited by 15 publications

References 70 publications

A worldwide meta-analysis (1977–2020) of sediment core dating using fallout radionuclides including <sup>137</sup>Cs and <sup>210</sup>Pb<sub>xs</sub>

A worldwide meta-analysis (1977–2020) of sediment core dating using fallout radionuclides including <sup>137</sup>Cs and <sup>210</sup>Pb<sub>xs</sub>

Controls on Sediment Accretion and Blue Carbon Burial in Tidal Saline Wetlands: Insights From the Oregon Coast, USA

PaCTS 1.0: A Crowdsourced Reporting Standard for Paleoclimate Data

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Guidelines for reporting and archiving 210Pb sediment chronologies to improve fidelity and extend data lifecycle

Cited by 15 publications

References 70 publications

A worldwide meta-analysis (1977–2020) of sediment core dating using fallout radionuclides including &lt;sup&gt;137&lt;/sup&gt;Cs and &lt;sup&gt;210&lt;/sup&gt;Pb&lt;sub&gt;xs&lt;/sub&gt;

A worldwide meta-analysis (1977–2020) of sediment core dating using fallout radionuclides including &lt;sup&gt;137&lt;/sup&gt;Cs and &lt;sup&gt;210&lt;/sup&gt;Pb&lt;sub&gt;xs&lt;/sub&gt;

Controls on Sediment Accretion and Blue Carbon Burial in Tidal Saline Wetlands: Insights From the Oregon Coast, USA

PaCTS 1.0: A Crowdsourced Reporting Standard for Paleoclimate Data

Contact Info

Product

Resources

About

A worldwide meta-analysis (1977–2020) of sediment core dating using fallout radionuclides including <sup>137</sup>Cs and <sup>210</sup>Pb<sub>xs</sub>

A worldwide meta-analysis (1977–2020) of sediment core dating using fallout radionuclides including <sup>137</sup>Cs and <sup>210</sup>Pb<sub>xs</sub>