High-resolution aerosol concentration data from the Greenland NorthGRIP and NEEM deep ice cores
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
High-resolution aerosol concentration data from the Greenland NorthGRIP and NEEM deep ice cores. / Erhardt, Tobias; Bigler, Matthias; Federer, Urs; Gfeller, Gideon; Leuenberger, Daiana; Stowasser, Olivia; Rothlisberger, Regine; Schupbach, Simon; Ruth, Urs; Twarloh, Birthe; Wegner, Anna; Goto-Azuma, Kumiko; Kuramoto, Takayuki; Kjaer, Helle A.; Vallelonga, Paul T.; Siggaard-Andersen, Marie-Louise; Hansson, Margareta E.; Benton, Ailsa K.; Fleet, Louise G.; Mulvaney, Rob; Thomas, Elizabeth R.; Abram, Nerilie; Stocker, Thomas F.; Fischer, Hubertus.
In: Earth System Science Data, Vol. 14, No. 3, 16.03.2022, p. 1215-1231.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - High-resolution aerosol concentration data from the Greenland NorthGRIP and NEEM deep ice cores
AU - Erhardt, Tobias
AU - Bigler, Matthias
AU - Federer, Urs
AU - Gfeller, Gideon
AU - Leuenberger, Daiana
AU - Stowasser, Olivia
AU - Rothlisberger, Regine
AU - Schupbach, Simon
AU - Ruth, Urs
AU - Twarloh, Birthe
AU - Wegner, Anna
AU - Goto-Azuma, Kumiko
AU - Kuramoto, Takayuki
AU - Kjaer, Helle A.
AU - Vallelonga, Paul T.
AU - Siggaard-Andersen, Marie-Louise
AU - Hansson, Margareta E.
AU - Benton, Ailsa K.
AU - Fleet, Louise G.
AU - Mulvaney, Rob
AU - Thomas, Elizabeth R.
AU - Abram, Nerilie
AU - Stocker, Thomas F.
AU - Fischer, Hubertus
PY - 2022/3/16
Y1 - 2022/3/16
N2 - Records of chemical impurities from ice cores enable us to reconstruct the past deposition of aerosols onto polar ice sheets and alpine glaciers. Through this they allow us to gain insight into changes of the source, transport and deposition processes that ultimately determine the deposition flux at the coring location. However, the low concentrations of the aerosol species in the ice and the resulting high risk of contamination pose a formidable analytical challenge, especially if long, continuous and highly resolved records are needed. Continuous flow analysis, CFA, the continuous melting, decontamination and analysis of ice-core samples has mostly overcome this issue and has quickly become the de facto standard to obtain high-resolution aerosol records from ice cores after its inception at the University of Bern in the mid-1990s.Here, we present continuous records of calcium (Ca2+), sodium (Na+), ammonium (NH4+), nitrate (NO3-) and electrolytic conductivity at 1 mm depth resolution from the NGRIP (North Greenland Ice Core Project) and NEEM (North Greenland Eemian Ice Drilling) ice cores produced by the Bern Continuous Flow Analysis group in the years 2000 to 2011 . Both of the records were previously used in a number of studies but were never published in full 1 mm resolution. Alongside the 1 mm datasets we provide decadal averages, a detailed description of the methods, relevant references, an assessment of the quality of the data and its usable resolution. Along the way we will also give some historical context on the development of the Bern CFA system. The data is available in full 1 mm and 10-year-averaged resolution on PANGAEA (https://doi.org/10.1594/PANGAEA.935838, )
AB - Records of chemical impurities from ice cores enable us to reconstruct the past deposition of aerosols onto polar ice sheets and alpine glaciers. Through this they allow us to gain insight into changes of the source, transport and deposition processes that ultimately determine the deposition flux at the coring location. However, the low concentrations of the aerosol species in the ice and the resulting high risk of contamination pose a formidable analytical challenge, especially if long, continuous and highly resolved records are needed. Continuous flow analysis, CFA, the continuous melting, decontamination and analysis of ice-core samples has mostly overcome this issue and has quickly become the de facto standard to obtain high-resolution aerosol records from ice cores after its inception at the University of Bern in the mid-1990s.Here, we present continuous records of calcium (Ca2+), sodium (Na+), ammonium (NH4+), nitrate (NO3-) and electrolytic conductivity at 1 mm depth resolution from the NGRIP (North Greenland Ice Core Project) and NEEM (North Greenland Eemian Ice Drilling) ice cores produced by the Bern Continuous Flow Analysis group in the years 2000 to 2011 . Both of the records were previously used in a number of studies but were never published in full 1 mm resolution. Alongside the 1 mm datasets we provide decadal averages, a detailed description of the methods, relevant references, an assessment of the quality of the data and its usable resolution. Along the way we will also give some historical context on the development of the Bern CFA system. The data is available in full 1 mm and 10-year-averaged resolution on PANGAEA (https://doi.org/10.1594/PANGAEA.935838, )
KW - CONTINUOUS-FLOW ANALYSIS
KW - MINERAL DUST
KW - METHANE MEASUREMENTS
KW - INJECTION ANALYSIS
KW - MILLENNIAL CHANGES
KW - CLIMATE SIGNALS
KW - 1ST CHRONOLOGY
KW - DIFFUSION
KW - HOLOCENE
KW - CALCIUM
U2 - 10.5194/essd-14-1215-2022
DO - 10.5194/essd-14-1215-2022
M3 - Journal article
VL - 14
SP - 1215
EP - 1231
JO - Earth System Science Data
JF - Earth System Science Data
SN - 1866-3508
IS - 3
ER -
ID: 303452289