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...
Published in: | The Cryosphere |
---|---|
Main Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
European Geosciences Union (EGU) | Copernicus
2016
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/39531/ http://www.the-cryosphere.net/10/245/2016/ https://hdl.handle.net/10013/epic.46684 |
id |
ftawi:oai:epic.awi.de:39531 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:39531 2023-05-15T13:11:21+02:00 Halogen-based reconstruction of Russian Arctic sea ice area from the Akademii Nauk ice core (Severnaya Zemlya) Spolaor, A. Opel, Thomas McConnel, J. R. Maselli, O. J. Spreen, G. Varin, C. Kirchgeorg, T. Fritzsche, Diedrich Saiz-Lopez, Alfonso Vallelonga, P. 2016-01-26 https://epic.awi.de/id/eprint/39531/ http://www.the-cryosphere.net/10/245/2016/ https://hdl.handle.net/10013/epic.46684 unknown European Geosciences Union (EGU) | Copernicus Spolaor, A. , Opel, T. orcid:0000-0003-1315-8256 , McConnel, J. R. , Maselli, O. J. , Spreen, G. , Varin, C. , Kirchgeorg, T. , Fritzsche, D. orcid:0000-0002-0018-8993 , Saiz-Lopez, A. and Vallelonga, P. (2016) Halogen-based reconstruction of Russian Arctic sea ice area from the Akademii Nauk ice core (Severnaya Zemlya) , The Cryosphere, 10 , pp. 245-256 . doi:10.5194/tc-10-245-2016 <https://doi.org/10.5194/tc-10-245-2016> , hdl:10013/epic.46684 EPIC3The Cryosphere, European Geosciences Union (EGU) | Copernicus, 10, pp. 245-256, ISSN: 1994-0416 Article NonPeerReviewed 2016 ftawi https://doi.org/10.5194/tc-10-245-2016 2022-08-14T23:12:30Z 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. Article in Journal/Newspaper albedo Arctic Arctic ice core laptev Laptev Sea Sea ice Severnaya Zemlya The Cryosphere Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Laptev Sea Severnaya Zemlya ENVELOPE(98.000,98.000,79.500,79.500) The Cryosphere 10 1 245 256 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
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 (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. |
format |
Article in Journal/Newspaper |
author |
Spolaor, A. Opel, Thomas McConnel, J. R. Maselli, O. J. Spreen, G. Varin, C. Kirchgeorg, T. Fritzsche, Diedrich Saiz-Lopez, Alfonso Vallelonga, P. |
spellingShingle |
Spolaor, A. Opel, Thomas McConnel, J. R. Maselli, O. J. Spreen, G. Varin, C. Kirchgeorg, T. Fritzsche, Diedrich Saiz-Lopez, Alfonso Vallelonga, P. Halogen-based reconstruction of Russian Arctic sea ice area from the Akademii Nauk ice core (Severnaya Zemlya) |
author_facet |
Spolaor, A. Opel, Thomas McConnel, J. R. Maselli, O. J. Spreen, G. Varin, C. Kirchgeorg, T. Fritzsche, Diedrich Saiz-Lopez, Alfonso Vallelonga, P. |
author_sort |
Spolaor, 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) | Copernicus |
publishDate |
2016 |
url |
https://epic.awi.de/id/eprint/39531/ http://www.the-cryosphere.net/10/245/2016/ https://hdl.handle.net/10013/epic.46684 |
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 Arctic ice core laptev Laptev Sea Sea ice Severnaya Zemlya The Cryosphere |
genre_facet |
albedo Arctic Arctic ice core laptev Laptev Sea Sea ice Severnaya Zemlya The Cryosphere |
op_source |
EPIC3The Cryosphere, European Geosciences Union (EGU) | Copernicus, 10, pp. 245-256, ISSN: 1994-0416 |
op_relation |
Spolaor, A. , Opel, T. orcid:0000-0003-1315-8256 , McConnel, J. R. , Maselli, O. J. , Spreen, G. , Varin, C. , Kirchgeorg, T. , Fritzsche, D. orcid:0000-0002-0018-8993 , Saiz-Lopez, A. and Vallelonga, P. (2016) Halogen-based reconstruction of Russian Arctic sea ice area from the Akademii Nauk ice core (Severnaya Zemlya) , The Cryosphere, 10 , pp. 245-256 . doi:10.5194/tc-10-245-2016 <https://doi.org/10.5194/tc-10-245-2016> , hdl:10013/epic.46684 |
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_ |
1766247042577858560 |