Halogen-based reconstruction of Russian Arctic sea ice area from the Akademii Nauk ice core (Severnaya Zemlya)
Published: 26 Jan 2016 The role of sea ice in the Earth climate system is still under debate, although it is known to influence albedo, ocean circulation, and atmosphere–ocean heat and gas exchange. Here we present a reconstruction of 1950 to 1998 AD sea ice in the Laptev Sea based on the Akademii N...
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Online Access: | http://hdl.handle.net/2440/99596 https://doi.org/10.5194/tc-10-245-2016 |
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ftunivadelaidedl:oai:digital.library.adelaide.edu.au:2440/99596 2023-12-24T10:07:46+01:00 Halogen-based reconstruction of Russian Arctic sea ice area from the Akademii Nauk ice core (Severnaya Zemlya) Spoloar, A. Opel, T. McConnell, J. Maselli, O. Spreen, G. Varin, C. Kirchgeorg, T. Fritzsche, D. Saiz-Lopez, A. Vallelonga, P. 2016 application/pdf http://hdl.handle.net/2440/99596 https://doi.org/10.5194/tc-10-245-2016 en eng European Geosciences Union (EGU) The Cryosphere, 2016; 10(1):245-256 1994-0424 http://hdl.handle.net/2440/99596 doi:10.5194/tc-10-245-2016 © Author(s) 2016. This work is distributed under the Creative Commons Attribution 3.0 License.e. http://dx.doi.org/10.5194/tc-10-245-2016 Journal article 2016 ftunivadelaidedl https://doi.org/10.5194/tc-10-245-2016 2023-11-27T23:21:45Z Published: 26 Jan 2016 The role of sea ice in the Earth climate system is still under debate, although it is known to influence albedo, ocean circulation, and atmosphere–ocean heat and gas exchange. Here we present a reconstruction of 1950 to 1998 AD sea ice in the Laptev Sea based on the Akademii Nauk ice core (Severnaya Zemlya, Russian Arctic). The chemistry of halogens bromine (Br) and iodine (I) is strongly active and influenced by sea ice dynamics, in terms of physical, chemical and biological process. Bromine reacts on the sea ice surface in autocatalyzing "bromine explosion" events, causing an enrichment of the Br / Na ratio and hence a bromine excess (Brexc) in snow compared to that in seawater. Iodine is suggested to be emitted from algal communities growing under sea ice. The results suggest a connection between Brexc and spring sea ice area, as well as a connection between iodine concentration and summer sea ice area. The correlation coefficients obtained between Brexc and spring sea ice (r = 0.44) as well as between iodine and summer sea ice (r = 0.50) for the Laptev Sea suggest that these two halogens could become good candidates for extended reconstructions of past sea ice changes in the Arctic. A. Spolaor, T. Opel, J. R. McConnell, O. J. Maselli, G. Spreen, C. Varin, T. Kirchgeorg, D. Fritzsche, A. Saiz-Lopez, and P. Vallelonga Article in Journal/Newspaper albedo Arctic ice core laptev Laptev Sea Sea ice Severnaya Zemlya The Cryosphere The University of Adelaide: Digital Library Arctic Laptev Sea Severnaya Zemlya ENVELOPE(98.000,98.000,79.500,79.500) Lopez ENVELOPE(-63.567,-63.567,-64.850,-64.850) The Cryosphere 10 1 245 256 |
institution |
Open Polar |
collection |
The University of Adelaide: Digital Library |
op_collection_id |
ftunivadelaidedl |
language |
English |
description |
Published: 26 Jan 2016 The role of sea ice in the Earth climate system is still under debate, although it is known to influence albedo, ocean circulation, and atmosphere–ocean heat and gas exchange. Here we present a reconstruction of 1950 to 1998 AD sea ice in the Laptev Sea based on the Akademii Nauk ice core (Severnaya Zemlya, Russian Arctic). The chemistry of halogens bromine (Br) and iodine (I) is strongly active and influenced by sea ice dynamics, in terms of physical, chemical and biological process. Bromine reacts on the sea ice surface in autocatalyzing "bromine explosion" events, causing an enrichment of the Br / Na ratio and hence a bromine excess (Brexc) in snow compared to that in seawater. Iodine is suggested to be emitted from algal communities growing under sea ice. The results suggest a connection between Brexc and spring sea ice area, as well as a connection between iodine concentration and summer sea ice area. The correlation coefficients obtained between Brexc and spring sea ice (r = 0.44) as well as between iodine and summer sea ice (r = 0.50) for the Laptev Sea suggest that these two halogens could become good candidates for extended reconstructions of past sea ice changes in the Arctic. A. Spolaor, T. Opel, J. R. McConnell, O. J. Maselli, G. Spreen, C. Varin, T. Kirchgeorg, D. Fritzsche, A. Saiz-Lopez, and P. Vallelonga |
format |
Article in Journal/Newspaper |
author |
Spoloar, A. Opel, T. McConnell, J. Maselli, O. Spreen, G. Varin, C. Kirchgeorg, T. Fritzsche, D. Saiz-Lopez, A. Vallelonga, P. |
spellingShingle |
Spoloar, A. Opel, T. McConnell, J. Maselli, O. Spreen, G. Varin, C. Kirchgeorg, T. Fritzsche, D. Saiz-Lopez, A. Vallelonga, P. Halogen-based reconstruction of Russian Arctic sea ice area from the Akademii Nauk ice core (Severnaya Zemlya) |
author_facet |
Spoloar, A. Opel, T. McConnell, J. Maselli, O. Spreen, G. Varin, C. Kirchgeorg, T. Fritzsche, D. Saiz-Lopez, A. Vallelonga, P. |
author_sort |
Spoloar, A. |
title |
Halogen-based reconstruction of Russian Arctic sea ice area from the Akademii Nauk ice core (Severnaya Zemlya) |
title_short |
Halogen-based reconstruction of Russian Arctic sea ice area from the Akademii Nauk ice core (Severnaya Zemlya) |
title_full |
Halogen-based reconstruction of Russian Arctic sea ice area from the Akademii Nauk ice core (Severnaya Zemlya) |
title_fullStr |
Halogen-based reconstruction of Russian Arctic sea ice area from the Akademii Nauk ice core (Severnaya Zemlya) |
title_full_unstemmed |
Halogen-based reconstruction of Russian Arctic sea ice area from the Akademii Nauk ice core (Severnaya Zemlya) |
title_sort |
halogen-based reconstruction of russian arctic sea ice area from the akademii nauk ice core (severnaya zemlya) |
publisher |
European Geosciences Union (EGU) |
publishDate |
2016 |
url |
http://hdl.handle.net/2440/99596 https://doi.org/10.5194/tc-10-245-2016 |
long_lat |
ENVELOPE(98.000,98.000,79.500,79.500) ENVELOPE(-63.567,-63.567,-64.850,-64.850) |
geographic |
Arctic Laptev Sea Severnaya Zemlya Lopez |
geographic_facet |
Arctic Laptev Sea Severnaya Zemlya Lopez |
genre |
albedo Arctic ice core laptev Laptev Sea Sea ice Severnaya Zemlya The Cryosphere |
genre_facet |
albedo Arctic ice core laptev Laptev Sea Sea ice Severnaya Zemlya The Cryosphere |
op_source |
http://dx.doi.org/10.5194/tc-10-245-2016 |
op_relation |
The Cryosphere, 2016; 10(1):245-256 1994-0424 http://hdl.handle.net/2440/99596 doi:10.5194/tc-10-245-2016 |
op_rights |
© Author(s) 2016. This work is distributed under the Creative Commons Attribution 3.0 License.e. |
op_doi |
https://doi.org/10.5194/tc-10-245-2016 |
container_title |
The Cryosphere |
container_volume |
10 |
container_issue |
1 |
container_start_page |
245 |
op_container_end_page |
256 |
_version_ |
1786154794973396992 |