Climate dependent contrast in surface mass balance in East Antarctica over the past 216 ka
Documenting past changes in the East Antarctic surface mass balance is important to improve ice core chronologies and to constrain the ice-sheet contribution to global mean sea-level change. Here we reconstruct past changes in the ratio of surface mass balance (SMB ratio) between the EPICA Dome C (E...
Published in: | Journal of Glaciology |
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Cambridge University Press
2016
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ftucambridgeesc:oai:eprints.esc.cam.ac.uk:3908 2023-05-15T13:55:44+02:00 Climate dependent contrast in surface mass balance in East Antarctica over the past 216 ka PARRENIN, F. FUJITA, S. ABE-OUCHI, A. KAWAMURA, K. MASSON-DELMOTTE, V. MOTOYAMA, H. SAITO, F. SEVERI, M. STENNI, B. UEMURA, R. Wolff, E. W. 2016 text http://eprints.esc.cam.ac.uk/3908/ http://eprints.esc.cam.ac.uk/3908/1/climate_dependent_contrast_in_surface_mass_balance_in_east_antarctica_over_the_past_216_ka.pdf https://doi.org/10.1017/jog.2016.85 en eng Cambridge University Press http://eprints.esc.cam.ac.uk/3908/1/climate_dependent_contrast_in_surface_mass_balance_in_east_antarctica_over_the_past_216_ka.pdf PARRENIN, F. and FUJITA, S. and ABE-OUCHI, A. and KAWAMURA, K. and MASSON-DELMOTTE, V. and MOTOYAMA, H. and SAITO, F. and SEVERI, M. and STENNI, B. and UEMURA, R. and Wolff, E. W. (2016) Climate dependent contrast in surface mass balance in East Antarctica over the past 216 ka. Journal of Glaciology, 62 (236). pp. 1037-1048. ISSN 0022-1430 DOI https://doi.org/10.1017/jog.2016.85 <https://doi.org/10.1017/jog.2016.85> 01 - Climate Change and Earth-Ocean Atmosphere Systems Article PeerReviewed 2016 ftucambridgeesc https://doi.org/10.1017/jog.2016.85 2020-08-27T18:09:49Z Documenting past changes in the East Antarctic surface mass balance is important to improve ice core chronologies and to constrain the ice-sheet contribution to global mean sea-level change. Here we reconstruct past changes in the ratio of surface mass balance (SMB ratio) between the EPICA Dome C (EDC) and Dome Fuji (DF) East Antarctica ice core sites, based on a precise volcanic synchronization of the two ice cores and on corrections for the vertical thinning of layers. During the past 216 000 a, this SMB ratio, denoted SMBEDC/SMBDF, varied between 0.7 and 1.1, being small during cold periods and large during warm periods. Our results therefore reveal larger amplitudes of changes in SMB at EDC compared with DF, consistent with previous results showing larger amplitudes of changes in water stable isotopes and estimated surface temperature at EDC compared with DF. Within the last glacial inception (Marine Isotope Stages, MIS-5c and MIS-5d), the SMB ratio deviates by up to 0.2 from what is expected based on differences in water stable isotope records. Moreover, the SMB ratio is constant throughout the late parts of the current and last interglacial periods, despite contrasting isotopic trends. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica EPICA ice core Ice Sheet Journal of Glaciology University of Cambridge, Department of Earth Sciences: ESC Publications Antarctic Dome Fuji ENVELOPE(39.700,39.700,-77.317,-77.317) East Antarctica Journal of Glaciology 62 236 1037 1048 |
institution |
Open Polar |
collection |
University of Cambridge, Department of Earth Sciences: ESC Publications |
op_collection_id |
ftucambridgeesc |
language |
English |
topic |
01 - Climate Change and Earth-Ocean Atmosphere Systems |
spellingShingle |
01 - Climate Change and Earth-Ocean Atmosphere Systems PARRENIN, F. FUJITA, S. ABE-OUCHI, A. KAWAMURA, K. MASSON-DELMOTTE, V. MOTOYAMA, H. SAITO, F. SEVERI, M. STENNI, B. UEMURA, R. Wolff, E. W. Climate dependent contrast in surface mass balance in East Antarctica over the past 216 ka |
topic_facet |
01 - Climate Change and Earth-Ocean Atmosphere Systems |
description |
Documenting past changes in the East Antarctic surface mass balance is important to improve ice core chronologies and to constrain the ice-sheet contribution to global mean sea-level change. Here we reconstruct past changes in the ratio of surface mass balance (SMB ratio) between the EPICA Dome C (EDC) and Dome Fuji (DF) East Antarctica ice core sites, based on a precise volcanic synchronization of the two ice cores and on corrections for the vertical thinning of layers. During the past 216 000 a, this SMB ratio, denoted SMBEDC/SMBDF, varied between 0.7 and 1.1, being small during cold periods and large during warm periods. Our results therefore reveal larger amplitudes of changes in SMB at EDC compared with DF, consistent with previous results showing larger amplitudes of changes in water stable isotopes and estimated surface temperature at EDC compared with DF. Within the last glacial inception (Marine Isotope Stages, MIS-5c and MIS-5d), the SMB ratio deviates by up to 0.2 from what is expected based on differences in water stable isotope records. Moreover, the SMB ratio is constant throughout the late parts of the current and last interglacial periods, despite contrasting isotopic trends. |
format |
Article in Journal/Newspaper |
author |
PARRENIN, F. FUJITA, S. ABE-OUCHI, A. KAWAMURA, K. MASSON-DELMOTTE, V. MOTOYAMA, H. SAITO, F. SEVERI, M. STENNI, B. UEMURA, R. Wolff, E. W. |
author_facet |
PARRENIN, F. FUJITA, S. ABE-OUCHI, A. KAWAMURA, K. MASSON-DELMOTTE, V. MOTOYAMA, H. SAITO, F. SEVERI, M. STENNI, B. UEMURA, R. Wolff, E. W. |
author_sort |
PARRENIN, F. |
title |
Climate dependent contrast in surface mass balance in East Antarctica over the past 216 ka |
title_short |
Climate dependent contrast in surface mass balance in East Antarctica over the past 216 ka |
title_full |
Climate dependent contrast in surface mass balance in East Antarctica over the past 216 ka |
title_fullStr |
Climate dependent contrast in surface mass balance in East Antarctica over the past 216 ka |
title_full_unstemmed |
Climate dependent contrast in surface mass balance in East Antarctica over the past 216 ka |
title_sort |
climate dependent contrast in surface mass balance in east antarctica over the past 216 ka |
publisher |
Cambridge University Press |
publishDate |
2016 |
url |
http://eprints.esc.cam.ac.uk/3908/ http://eprints.esc.cam.ac.uk/3908/1/climate_dependent_contrast_in_surface_mass_balance_in_east_antarctica_over_the_past_216_ka.pdf https://doi.org/10.1017/jog.2016.85 |
long_lat |
ENVELOPE(39.700,39.700,-77.317,-77.317) |
geographic |
Antarctic Dome Fuji East Antarctica |
geographic_facet |
Antarctic Dome Fuji East Antarctica |
genre |
Antarc* Antarctic Antarctica East Antarctica EPICA ice core Ice Sheet Journal of Glaciology |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica EPICA ice core Ice Sheet Journal of Glaciology |
op_relation |
http://eprints.esc.cam.ac.uk/3908/1/climate_dependent_contrast_in_surface_mass_balance_in_east_antarctica_over_the_past_216_ka.pdf PARRENIN, F. and FUJITA, S. and ABE-OUCHI, A. and KAWAMURA, K. and MASSON-DELMOTTE, V. and MOTOYAMA, H. and SAITO, F. and SEVERI, M. and STENNI, B. and UEMURA, R. and Wolff, E. W. (2016) Climate dependent contrast in surface mass balance in East Antarctica over the past 216 ka. Journal of Glaciology, 62 (236). pp. 1037-1048. ISSN 0022-1430 DOI https://doi.org/10.1017/jog.2016.85 <https://doi.org/10.1017/jog.2016.85> |
op_doi |
https://doi.org/10.1017/jog.2016.85 |
container_title |
Journal of Glaciology |
container_volume |
62 |
container_issue |
236 |
container_start_page |
1037 |
op_container_end_page |
1048 |
_version_ |
1766262575611248640 |