Climate of the Past
Climate of the Past
CP
Articles | Volume 17, issue 3
Articles | Volume 17, issue 3
https://doi.org/10.5194/cp-17-1341-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-17-1341-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 3
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, Kumiko Goto-Azuma, Akane Tsushima, Koji Fujita, Sumito Matoba, Yukihiko Onuma, Remi Dallmayr, Moe Kadota, Motohiro Hirabayashi, Jun Ogata, Yoshimi Ogawa-Tsukagawa, Kyotaro Kitamura, Masahiro Minowa, Yuki Komuro, Hideaki Motoyama, and Teruo Aoki

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).
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