Temporal variations of surface mass balance over the last 5000 years around Dome Fuji, Dronning Maud Land, East Antarctica
We reconstructed surface mass balance (SMB) around Dome Fuji, Antarctica, over the last 5000 years using the data from 15 shallow ice cores and 7 snow pits. The depth-age relationships for the ice cores were determined by synchronizing them with a layer-counted ice core from West Antarctica (WAIS Di...
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ftcopernicus:oai:publications.copernicus.org:cpd106069 2023-05-15T13:38:41+02:00 Temporal variations of surface mass balance over the last 5000 years around Dome Fuji, Dronning Maud Land, East Antarctica Oyabu, Ikumi Kawamura, Kenji Fujita, Shuji Inoue, Ryo Motoyama, Hideaki Fukui, Kotaro Hirabayashi, Motohiro Hoshina, Yu Kurita, Naoyuki Nakazawa, Fumio Ohno, Hiroshi Sugiura, Konosuke Suzuki, Toshitaka Tsutaki, Shun Abe-Ouchi, Ayako Niwano, Masashi Parrenin, Frédéric Saito, Fuyuki Yoshimori, Masakazu 2022-09-02 application/pdf https://doi.org/10.5194/cp-2022-68 https://cp.copernicus.org/preprints/cp-2022-68/ eng eng doi:10.5194/cp-2022-68 https://cp.copernicus.org/preprints/cp-2022-68/ eISSN: 1814-9332 Text 2022 ftcopernicus https://doi.org/10.5194/cp-2022-68 2022-09-05T16:22:54Z We reconstructed surface mass balance (SMB) around Dome Fuji, Antarctica, over the last 5000 years using the data from 15 shallow ice cores and 7 snow pits. The depth-age relationships for the ice cores were determined by synchronizing them with a layer-counted ice core from West Antarctica (WAIS Divide ice core) using volcanic signals. The reconstructed SMB records for the last 4000 years show spatial patterns that may be affected by their locations relative to the ice divides around Dome Fuji, proximity to the ocean, and wind direction. The SMB records from the individual ice cores and snow pits were stacked to reconstruct the SMB history in the Dome Fuji area. The stacked record exhibits a long-term decreasing trend at −0.037±0.005 kg m -2 per century over the last 5000 years in the preindustrial period. The decreasing trend may be the result of long-term surface cooling over East Antarctica and the Southern Ocean, and sea-ice expansion in the water vapor source areas. The multidecadal to centennial variations of the Dome Fuji SMB after detrending the record shows four distinct periods during the last millennium: mostly negative period before 1300 C.E., slightly positive for 1300–1450 C.E., slightly negative for 1450–1850 C.E. with a weak maximum around 1600 C.E., and strong increase after 1850 C.E. These variations are consistent with those of previously reconstructed SMB records in the East Antarctic plateau. The low accumulation rate periods tend to coincide with the combination of strong volcanic forcings and solar minima for the last 1000 years, but the correspondence is not clear for the older periods, possibly because of the lack of coincidence of volcanic and solar forcings, or the deterioration of the SMB record due to smaller number of stacked cores. Text Antarc* Antarctic Antarctica Dronning Maud Land East Antarctica ice core Sea ice Southern Ocean West Antarctica Copernicus Publications: E-Journals Antarctic Dome Fuji ENVELOPE(39.700,39.700,-77.317,-77.317) Dronning Maud Land East Antarctica Southern Ocean West Antarctica |
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Open Polar |
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Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
We reconstructed surface mass balance (SMB) around Dome Fuji, Antarctica, over the last 5000 years using the data from 15 shallow ice cores and 7 snow pits. The depth-age relationships for the ice cores were determined by synchronizing them with a layer-counted ice core from West Antarctica (WAIS Divide ice core) using volcanic signals. The reconstructed SMB records for the last 4000 years show spatial patterns that may be affected by their locations relative to the ice divides around Dome Fuji, proximity to the ocean, and wind direction. The SMB records from the individual ice cores and snow pits were stacked to reconstruct the SMB history in the Dome Fuji area. The stacked record exhibits a long-term decreasing trend at −0.037±0.005 kg m -2 per century over the last 5000 years in the preindustrial period. The decreasing trend may be the result of long-term surface cooling over East Antarctica and the Southern Ocean, and sea-ice expansion in the water vapor source areas. The multidecadal to centennial variations of the Dome Fuji SMB after detrending the record shows four distinct periods during the last millennium: mostly negative period before 1300 C.E., slightly positive for 1300–1450 C.E., slightly negative for 1450–1850 C.E. with a weak maximum around 1600 C.E., and strong increase after 1850 C.E. These variations are consistent with those of previously reconstructed SMB records in the East Antarctic plateau. The low accumulation rate periods tend to coincide with the combination of strong volcanic forcings and solar minima for the last 1000 years, but the correspondence is not clear for the older periods, possibly because of the lack of coincidence of volcanic and solar forcings, or the deterioration of the SMB record due to smaller number of stacked cores. |
format |
Text |
author |
Oyabu, Ikumi Kawamura, Kenji Fujita, Shuji Inoue, Ryo Motoyama, Hideaki Fukui, Kotaro Hirabayashi, Motohiro Hoshina, Yu Kurita, Naoyuki Nakazawa, Fumio Ohno, Hiroshi Sugiura, Konosuke Suzuki, Toshitaka Tsutaki, Shun Abe-Ouchi, Ayako Niwano, Masashi Parrenin, Frédéric Saito, Fuyuki Yoshimori, Masakazu |
spellingShingle |
Oyabu, Ikumi Kawamura, Kenji Fujita, Shuji Inoue, Ryo Motoyama, Hideaki Fukui, Kotaro Hirabayashi, Motohiro Hoshina, Yu Kurita, Naoyuki Nakazawa, Fumio Ohno, Hiroshi Sugiura, Konosuke Suzuki, Toshitaka Tsutaki, Shun Abe-Ouchi, Ayako Niwano, Masashi Parrenin, Frédéric Saito, Fuyuki Yoshimori, Masakazu Temporal variations of surface mass balance over the last 5000 years around Dome Fuji, Dronning Maud Land, East Antarctica |
author_facet |
Oyabu, Ikumi Kawamura, Kenji Fujita, Shuji Inoue, Ryo Motoyama, Hideaki Fukui, Kotaro Hirabayashi, Motohiro Hoshina, Yu Kurita, Naoyuki Nakazawa, Fumio Ohno, Hiroshi Sugiura, Konosuke Suzuki, Toshitaka Tsutaki, Shun Abe-Ouchi, Ayako Niwano, Masashi Parrenin, Frédéric Saito, Fuyuki Yoshimori, Masakazu |
author_sort |
Oyabu, Ikumi |
title |
Temporal variations of surface mass balance over the last 5000 years around Dome Fuji, Dronning Maud Land, East Antarctica |
title_short |
Temporal variations of surface mass balance over the last 5000 years around Dome Fuji, Dronning Maud Land, East Antarctica |
title_full |
Temporal variations of surface mass balance over the last 5000 years around Dome Fuji, Dronning Maud Land, East Antarctica |
title_fullStr |
Temporal variations of surface mass balance over the last 5000 years around Dome Fuji, Dronning Maud Land, East Antarctica |
title_full_unstemmed |
Temporal variations of surface mass balance over the last 5000 years around Dome Fuji, Dronning Maud Land, East Antarctica |
title_sort |
temporal variations of surface mass balance over the last 5000 years around dome fuji, dronning maud land, east antarctica |
publishDate |
2022 |
url |
https://doi.org/10.5194/cp-2022-68 https://cp.copernicus.org/preprints/cp-2022-68/ |
long_lat |
ENVELOPE(39.700,39.700,-77.317,-77.317) |
geographic |
Antarctic Dome Fuji Dronning Maud Land East Antarctica Southern Ocean West Antarctica |
geographic_facet |
Antarctic Dome Fuji Dronning Maud Land East Antarctica Southern Ocean West Antarctica |
genre |
Antarc* Antarctic Antarctica Dronning Maud Land East Antarctica ice core Sea ice Southern Ocean West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica Dronning Maud Land East Antarctica ice core Sea ice Southern Ocean West Antarctica |
op_source |
eISSN: 1814-9332 |
op_relation |
doi:10.5194/cp-2022-68 https://cp.copernicus.org/preprints/cp-2022-68/ |
op_doi |
https://doi.org/10.5194/cp-2022-68 |
_version_ |
1766109512339554304 |