High-resolution aerosol data from the top 3.8 kyr of the East Greenland Ice coring Project (EGRIP) ice core

• Published in: Earth System Science Data
• Main Authors: Erhardt, Tobias, Jensen, Camilla Marie, Adolphi, Florian, Kjær, Helle Astrid, Dallmayr, Remi, Twarloh, Birthe, Behrens, Melanie, Hirabayashi, Motohiro, Fukuda, Kaori, Ogata, Jun, Burgay, François, Scoto, Federico, Crotti, Ilaria, Spagnesi, Azzurra, Maffezzoli, Niccoló, Segato, Delia, Paleari, Chiara, Mekhaldi, Florian, Muscheler, Raimund, Darfeuil, Sophie, Fischer, Hubertus
• Other Authors: Universität Bern = University of Bern = Université de Berne (UNIBE), Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI), Helmholtz-Gemeinschaft = Helmholtz Association, University of Copenhagen = Københavns Universitet (UCPH), National Institute of Polar Research Tokyo (NiPR), University of Ca’ Foscari Venice, Italy, Paul Scherrer Institute (PSI), National Research Council of Italy, Lund University, Institut des Géosciences de l’Environnement (IGE), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI).
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2023
• Subjects: Greenland Ice; [SDE]Environmental Sciences; East Greenland; Greenland; Greenland ice core; ice core
• Online Access: https://hal.inrae.fr/hal-04531971; https://hal.inrae.fr/hal-04531971/document; https://hal.inrae.fr/hal-04531971/file/2023_Erhardt_ESSD.pdf; https://doi.org/10.5194/essd-15-5079-2023

International audience Here we present the high-resolution continuous flow analysis (CFA) data from the top 479 m of the East Greenland Ice coring Project (EGRIP) ice core covering the past 3.8 kyr. The data consist of 1 mm depth-resolution profiles of calcium, sodium, ammonium, nitrate, and electrolytic conductivity as well as decadal averages of these profiles. The nominally 1 mm data represent an oversampling of the record as the true resolution is limited by the analytical setup to approximately 1 cm. Alongside the data we provide a description of the measurement setup, procedures, the relevant references for the specific methods as well as an assessment of the precision of the measurements, the sample-to-depth assignment, and the depth and temporal resolution of the data set. The error in absolute depth assignment of the data may be on the order of 2 cm; however, relative depth offsets between the records of the individual species are only on the order of 1 mm. The presented data have sub-annual resolution over the entire depth range and have already formed part of the data for an annually layer-counted timescale for the EGRIP ice core used to improve and revise the multi-core Greenland ice-core chronology (GICC05) to a new version, GICC21 (Sinnl et al., 2022). The data are available in full 1 mm resolution and decadal averages on PANGAEA (https://doi.org/10.1594/PANGAEA.945293, Erhardt et al., 2022b).