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- Title
High-resolution aerosol data from the top 3.8 kyr of the East Greenland Ice coring Project (EGRIP) ice core.
- 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
- Abstract
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. The data are available in full 1 mm resolution and decadal averages on PANGAEA (10.1594/PANGAEA.945293,).
- Subjects
GREENLAND; ICE cores; GREENLAND ice; PANGAEA (Supercontinent); AEROSOLS
- Publication
Earth System Science Data, 2023, Vol 15, Issue 11, p5079
- ISSN
1866-3508
- Publication type
Article
- DOI
10.5194/essd-15-5079-2023