Halogen-based reconstruction of Russian Arctic sea ice area from the Akademii Nauk ice core (Severnaya Zemlya)
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...
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ftdoajarticles:oai:doaj.org/article:14423270251a40e0986fb13e95c1e70d 2023-05-15T13:11:21+02:00 Halogen-based reconstruction of Russian Arctic sea ice area from the Akademii Nauk ice core (Severnaya Zemlya) A. Spolaor T. Opel J. R. McConnell O. J. Maselli G. Spreen C. Varin T. Kirchgeorg D. Fritzsche A. Saiz-Lopez P. Vallelonga 2016-01-01T00:00:00Z https://doi.org/10.5194/tc-10-245-2016 https://doaj.org/article/14423270251a40e0986fb13e95c1e70d EN eng Copernicus Publications http://www.the-cryosphere.net/10/245/2016/tc-10-245-2016.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 1994-0416 1994-0424 doi:10.5194/tc-10-245-2016 https://doaj.org/article/14423270251a40e0986fb13e95c1e70d The Cryosphere, Vol 10, Iss 1, Pp 245-256 (2016) Environmental sciences GE1-350 Geology QE1-996.5 article 2016 ftdoajarticles https://doi.org/10.5194/tc-10-245-2016 2022-12-30T23:44:55Z 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 (Br exc ) 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 Br exc and spring sea ice area, as well as a connection between iodine concentration and summer sea ice area. The correlation coefficients obtained between Br exc 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. Article in Journal/Newspaper albedo Arctic ice core laptev Laptev Sea Sea ice Severnaya Zemlya The Cryosphere Directory of Open Access Journals: DOAJ Articles Arctic Laptev Sea Severnaya Zemlya ENVELOPE(98.000,98.000,79.500,79.500) The Cryosphere 10 1 245 256 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 A. Spolaor T. Opel J. R. McConnell O. J. Maselli G. Spreen C. Varin T. Kirchgeorg D. Fritzsche A. Saiz-Lopez P. Vallelonga Halogen-based reconstruction of Russian Arctic sea ice area from the Akademii Nauk ice core (Severnaya Zemlya) |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
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 (Br exc ) 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 Br exc and spring sea ice area, as well as a connection between iodine concentration and summer sea ice area. The correlation coefficients obtained between Br exc 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. |
format |
Article in Journal/Newspaper |
author |
A. Spolaor T. Opel J. R. McConnell O. J. Maselli G. Spreen C. Varin T. Kirchgeorg D. Fritzsche A. Saiz-Lopez P. Vallelonga |
author_facet |
A. Spolaor T. Opel J. R. McConnell O. J. Maselli G. Spreen C. Varin T. Kirchgeorg D. Fritzsche A. Saiz-Lopez P. Vallelonga |
author_sort |
A. Spolaor |
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 |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/tc-10-245-2016 https://doaj.org/article/14423270251a40e0986fb13e95c1e70d |
long_lat |
ENVELOPE(98.000,98.000,79.500,79.500) |
geographic |
Arctic Laptev Sea Severnaya Zemlya |
geographic_facet |
Arctic Laptev Sea Severnaya Zemlya |
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 |
The Cryosphere, Vol 10, Iss 1, Pp 245-256 (2016) |
op_relation |
http://www.the-cryosphere.net/10/245/2016/tc-10-245-2016.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 1994-0416 1994-0424 doi:10.5194/tc-10-245-2016 https://doaj.org/article/14423270251a40e0986fb13e95c1e70d |
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 |
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1766247064708055040 |