Articles | Volume 17, issue 3
Clim. Past, 17, 1341–1362, 2021
https://doi.org/10.5194/cp-17-1341-2021
Clim. Past, 17, 1341–1362, 2021
https://doi.org/10.5194/cp-17-1341-2021

Research article 21 Jun 2021

Research article | 21 Jun 2021

Variations in mineralogy of dust in an ice core obtained from northwestern Greenland over the past 100 years

Naoko Nagatsuka et al.

Data sets

Stable isotope, ion concentrations, and mineral dust data from northwestern Greenland ice core (SIGMA-D) Naoko Nagatsuka, Sumito Matoba, Moe Kadota, Koji Fujita, Akane Tsushima, Remi Dallmayr, Motohiro Hirabayashi, Jun Ogata, Yoshimi Ogawa-Tsukagawa, and Kumiko Goto-Azuma https://doi.org/10.17592/001.2021052501

Model code and software

CMIP6.LS3MIP.MIROC.MIROC6.land-hist Yukihiko Onuma and Kim Hyungjun https://doi.org/10.22033/ESGF/CMIP6.5622

CMIP6.LS3MIP.MIROC.MIROC6.land-hist-cruNcep Yukihiko Onuma and Kim Hyungjun https://doi.org/10.22033/ESGF/CMIP6.5627

CMIP6.LS3MIP.MIROC.MIROC6.land-hist-princeton Yukihiko Onuma and Kim Hyungjun https://doi.org/10.22033/ESGF/CMIP6.5628

CMIP6.LS3MIP.MIROC.MIROC6.land-hist-wfdei Yukihiko Onuma and Kim Hyungjun https://doi.org/10.22033/ESGF/CMIP6.5629

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Short summary
Here we present a first high-temporal-resolution record of mineral composition in a Greenland ice core (SIGMA-D) over the past 100 years using SEM–EDS analysis. Our results show that the ice core dust composition varied on multi-decadal scales, which was likely affected by local temperature changes. We suggest that the ice core dust was constantly supplied from distant sources (mainly northern Canada) as well as local ice-free areas in warm periods (1915 to 1949 and 2005 to 2013).