A Simplified Palaeoceanography Archiving System (PARIS) and GUI for Storage and Visualisation of Marine Sediment Core Proxy Data vs Age and Depth
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TL;DR: In this article , a file naming and structuring method was used at LSCE to store data in text file format in a way that is machine-readable, and also human-friendly to persons of all levels of computer proficiency.
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Abstract: Scientific discovery can be aided when data are shared following the principles of findability, accessibility, interoperability, reusability (FAIR) data (Wilkinson et al., 2016). Recent discussions in the palaeoclimate literature have focussed on defining the ideal database format for storing data and associated metadata. Here, we highlight an often overlooked primary process in widespread adoption of FAIR data, namely the systematic creation of machine readable data at source (i.e. at the field and laboratory level). We detail a file naming and structuring method that was used at LSCE to store data in text file format in a way that is machine-readable, and also human-friendly to persons of all levels of computer proficiency, thus encouraging the adoption of a machine-readable ethos at the very start of a project. Thanks to the relative simplicity of downcore palaeoclimate data, we demonstrate the power of this simple but powerful file format to function as a basic database in itself: we provide a Matlab-based GUI tool that allows users to search and visualise isotope data by sediment core location and species type, against either depth or age. We share the database format here so that other laboratories might consider developing a similar approach depending on their own needs and requirements.
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Citations
Atlantic circulation changes across a stadial–interstadial transition
Claire Waelbroeck,Jerry Tjiputra,Chun Li Guo,Kerim H. Nisancioglu,Eystein Jansen,Natalia Vázquez Riveiros,Samuel Toucanne,Frédérique Eynaud,Linda Rossignol,Fabien Dewilde,Elodie Marchès,Susana Martin Lebreiro,Silvia Osorio Nave +12 more
TL;DR: In this article , the authors combine consistently dated benthic carbon isotopic records distributed over the entire Atlantic Ocean with numerical simulations performed by a glacial configuration of the Norwegian Earth System Model with active ocean biogeochemistry in order to interpret the observed Cibicides δ13C changes at the stadial-interstadial transition corresponding to the end of Heinrich Stadial 4 (HS4) in terms of ocean circulation and remineralization changes.
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High-resolution carbon dioxide concentration record 650,000–800,000 years before present
Dieter Lüthi,Martine Le Floch,Bernhard Bereiter,Thomas Blunier,Jean-Marc Barnola,Urs Siegenthaler,Dominique Raynaud,Jean Jouzel,Hubertus Fischer,Kenji Kawamura,Thomas F. Stocker +10 more
TL;DR: It is found that atmospheric carbon dioxide is strongly correlated with Antarctic temperature throughout eight glacial cycles but with significantly lower concentrations between 650,000 and 750,000 yr before present, which extends the pre-industrial range of carbon dioxide concentrations during the late Quaternary by about 10 p.p.m.v.
Radiocarbon Calibration and Analysis of Stratigraphy: The OxCal Program
TL;DR: In this article, the OxCal program informatique OxCal permet d'effectuer de nombreuses analyses sur les dates radiocarbones, de la simple calibration a l'analyse de tous les sites archeologiques en donnant des informations sur la stratigraphie and les autres methodes de datation.
Phase relationships between millennial-scale events 64,000–24,000 years ago
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Changes in East Atlantic Deepwater Circulation over the last 30,000 years: Eight time slice reconstructions
Michael Sarnthein,Kyaw Winn,Simon Jung,Jean-Claude Duplessy,Laurent Labeyrie,Helmut Erlenkeuser,Gerald Ganssen +6 more
TL;DR: Using 95 epibenthic δ13C records, eight time slices were reconstructed to trace the distribution of east Atlantic deepwater and intermediate water masses over the last 30,000 years as discussed by the authors.
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Consistently dated Atlantic sediment cores over the last 40 thousand years
Claire Waelbroeck,Bryan C Lougheed,Natalia Vázquez Riveiros,Natalia Vázquez Riveiros,Lise Missiaen,Joel B Pedro,Trond Dokken,Irka Hajdas,Lukas Wacker,Peter M Abbott,Peter M Abbott,Jean-Pascal Dumoulin,Jean-Pascal Dumoulin,François Thil,Frédérique Eynaud,Linda Rossignol,Wiem Fersi,Ana Luiza Spadano Albuquerque,Helge W Arz,William E. N. Austin,Rosemarie E Came,Anders E. Carlson,James A Collins,Bernard Dennielou,Stéphanie Desprat,Stéphanie Desprat,Alex Dickson,Mary Elliot,Christa Farmer,Jacques Giraudeau,Julia Gottschalk,Jorijntje Henderiks,Konrad A Hughen,Simon Jung,Paul Cornils Knutz,Susana Martin Lebreiro,David C Lund,Jean Lynch-Stieglitz,Bruno Malaizé,Thomas M Marchitto,Gema Martínez-Méndez,Gesine Mollenhauer,Filipa Naughton,Silvia Osorio Nave,Dirk Nürnberg,Delia W Oppo,Victoria L Peck,Frank Peeters,Aurélie Penaud,Rodrigo Costa Portilho-Ramos,Janne Repschläger,Jenny Roberts,Carsten Rühlemann,Emilia Salgueiro,Maria Fernanda Sanchez Goñi,Maria Fernanda Sanchez Goñi,Joachim Schönfeld,Paolo Scussolini,Luke C Skinner,Charlotte Skonieczny,David Thornalley,Samuel Toucanne,David Van Rooij,Laurence Vidal,Antje H L Voelker,Mélanie Wary,Syee Weldeab,Martin Ziegler +67 more
TL;DR: This is the first set of consistently dated marine sediment cores enabling paleoclimate scientists to evaluate leads/lags between circulation and climate changes over vast regions of the Atlantic Ocean.
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