Increasing dust emission from ice free terrain in southeastern Greenland since 2000
Mineral dust plays a key role in both local and global climates. At high latitudes, atmospheric dust can affect icenuclei formation, and surface dust can reduce the albedo as well as increase subsequent ice melting. As a proxy for past climate, mineral dust is preserved in ice cores, but few studies...
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/88138 2023-05-15T16:24:43+02:00 Increasing dust emission from ice free terrain in southeastern Greenland since 2000 Amino, Tomomi Iizuka, Yoshinori Matoba, Sumito Shimada, Rigen Oshima, Naga Suzuki, Toshitaka Ando, Takuto Aoki, Teruo Fujita, Koji http://hdl.handle.net/2115/88138 https://doi.org/10.1016/j.polar.2020.100599 eng eng Elsevier [Dataset]SE-Dome dust aerosols(Amino2020)_2020 http://hdl.handle.net/2115/79417 http://hdl.handle.net/2115/88138 Polar Science, 27: 100599 http://dx.doi.org/10.1016/j.polar.2020.100599 © 2021, Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ http://creativecommons.org/licenses/by-nc-nd/4.0/ CC-BY-NC-ND Greenland Dust Ice core Annual flux Seasonal flux 450 article (author version) fthokunivhus https://doi.org/10.1016/j.polar.2020.100599 2023-03-03T01:03:33Z Mineral dust plays a key role in both local and global climates. At high latitudes, atmospheric dust can affect icenuclei formation, and surface dust can reduce the albedo as well as increase subsequent ice melting. As a proxy for past climate, mineral dust is preserved in ice cores, but few studies have examined deposited dust in ice cores during the Anthropocene, especially after 2000. We measured dust concentrations in an ice core at the southeastern dome in Greenland (SE-Dome), and reconstructed the annual and seasonal dust fluxes during 1960-2014. We find the annual average flux during 1960-2014 to be 34.8 ± 13.5 mg m- 2 yr-1, a value about twice that of ice cores further inland. The more recent part of that period, 2000-2014, has the higher annual flux of 46.6 ± 16.2 mg m- 2 yr-1. The annual and autumn dust fluxes highly correlate with air temperature in Tasiilaq (r = 0.61 and 0.50, respectively), a coastal location in southeastern Greenland. Our results suggest that the local dust emissions at the coastal region are increasing due to a decreasing seasonal snow-cover area arising from coastal Greenland warming after 2000. Article in Journal/Newspaper Greenland ice core Polar Science Polar Science Tasiilaq Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Greenland Tasiilaq ENVELOPE(-37.637,-37.637,65.615,65.615) Polar Science 27 100599 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
Greenland Dust Ice core Annual flux Seasonal flux 450 |
spellingShingle |
Greenland Dust Ice core Annual flux Seasonal flux 450 Amino, Tomomi Iizuka, Yoshinori Matoba, Sumito Shimada, Rigen Oshima, Naga Suzuki, Toshitaka Ando, Takuto Aoki, Teruo Fujita, Koji Increasing dust emission from ice free terrain in southeastern Greenland since 2000 |
topic_facet |
Greenland Dust Ice core Annual flux Seasonal flux 450 |
description |
Mineral dust plays a key role in both local and global climates. At high latitudes, atmospheric dust can affect icenuclei formation, and surface dust can reduce the albedo as well as increase subsequent ice melting. As a proxy for past climate, mineral dust is preserved in ice cores, but few studies have examined deposited dust in ice cores during the Anthropocene, especially after 2000. We measured dust concentrations in an ice core at the southeastern dome in Greenland (SE-Dome), and reconstructed the annual and seasonal dust fluxes during 1960-2014. We find the annual average flux during 1960-2014 to be 34.8 ± 13.5 mg m- 2 yr-1, a value about twice that of ice cores further inland. The more recent part of that period, 2000-2014, has the higher annual flux of 46.6 ± 16.2 mg m- 2 yr-1. The annual and autumn dust fluxes highly correlate with air temperature in Tasiilaq (r = 0.61 and 0.50, respectively), a coastal location in southeastern Greenland. Our results suggest that the local dust emissions at the coastal region are increasing due to a decreasing seasonal snow-cover area arising from coastal Greenland warming after 2000. |
format |
Article in Journal/Newspaper |
author |
Amino, Tomomi Iizuka, Yoshinori Matoba, Sumito Shimada, Rigen Oshima, Naga Suzuki, Toshitaka Ando, Takuto Aoki, Teruo Fujita, Koji |
author_facet |
Amino, Tomomi Iizuka, Yoshinori Matoba, Sumito Shimada, Rigen Oshima, Naga Suzuki, Toshitaka Ando, Takuto Aoki, Teruo Fujita, Koji |
author_sort |
Amino, Tomomi |
title |
Increasing dust emission from ice free terrain in southeastern Greenland since 2000 |
title_short |
Increasing dust emission from ice free terrain in southeastern Greenland since 2000 |
title_full |
Increasing dust emission from ice free terrain in southeastern Greenland since 2000 |
title_fullStr |
Increasing dust emission from ice free terrain in southeastern Greenland since 2000 |
title_full_unstemmed |
Increasing dust emission from ice free terrain in southeastern Greenland since 2000 |
title_sort |
increasing dust emission from ice free terrain in southeastern greenland since 2000 |
publisher |
Elsevier |
url |
http://hdl.handle.net/2115/88138 https://doi.org/10.1016/j.polar.2020.100599 |
long_lat |
ENVELOPE(-37.637,-37.637,65.615,65.615) |
geographic |
Greenland Tasiilaq |
geographic_facet |
Greenland Tasiilaq |
genre |
Greenland ice core Polar Science Polar Science Tasiilaq |
genre_facet |
Greenland ice core Polar Science Polar Science Tasiilaq |
op_relation |
[Dataset]SE-Dome dust aerosols(Amino2020)_2020 http://hdl.handle.net/2115/79417 http://hdl.handle.net/2115/88138 Polar Science, 27: 100599 http://dx.doi.org/10.1016/j.polar.2020.100599 |
op_rights |
© 2021, Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1016/j.polar.2020.100599 |
container_title |
Polar Science |
container_volume |
27 |
container_start_page |
100599 |
_version_ |
1766013276936732672 |