The Elbrus (Caucasus, Russia) ice core record – Part 2: history of desert dust deposition
Ice cores are one of the most valuable paleo-archives. Records from ice cores provide information not only about the amount of dust in the atmosphere, but also about dust sources and their changes in the past. In 2009, a 182 m long ice core was recovered from the western plateau of Mt Elbrus (5115 m...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00049543 2023-05-15T16:38:42+02:00 The Elbrus (Caucasus, Russia) ice core record – Part 2: history of desert dust deposition Kutuzov, Stanislav Legrand, Michel Preunkert, Susanne Ginot, Patrick Mikhalenko, Vladimir Shukurov, Karim Poliukhov, Aleksei Toropov, Pavel 2019-11 electronic https://doi.org/10.5194/acp-19-14133-2019 https://noa.gwlb.de/receive/cop_mods_00049543 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00049162/acp-19-14133-2019.pdf https://acp.copernicus.org/articles/19/14133/2019/acp-19-14133-2019.pdf eng eng Copernicus Publications Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-19-14133-2019 https://noa.gwlb.de/receive/cop_mods_00049543 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00049162/acp-19-14133-2019.pdf https://acp.copernicus.org/articles/19/14133/2019/acp-19-14133-2019.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2019 ftnonlinearchiv https://doi.org/10.5194/acp-19-14133-2019 2022-02-08T22:37:16Z Ice cores are one of the most valuable paleo-archives. Records from ice cores provide information not only about the amount of dust in the atmosphere, but also about dust sources and their changes in the past. In 2009, a 182 m long ice core was recovered from the western plateau of Mt Elbrus (5115 m a.s.l.). This record was further extended after a shallow ice core was drilled in 2013. Here we analyse Ca2+ concentrations, a commonly used proxy of dust, recorded in these Elbrus ice records over the time period of 1774–2013 CE. The Ca2+ record reveals quasi-decadal variability with a generally increasing trend. Using multiple regression analysis, we found a statistically significant spatial correlation of the Elbrus Ca2+ summer concentrations with precipitation and soil moisture content in the Levant region (specifically Syria and Iraq). The Ca2+ record also correlates with drought indices in North Africa (r=0.67, p<0.001) and Middle East regions (r=0.71, p<0.001). Dust concentrations prominently increase in the ice core over the past 200 years, confirming that the recent droughts in the Fertile Crescent (1998–2012 CE) present the most severe aridity experienced in at least the past two centuries. For the most recent 33 years recorded (1979–2012 CE), significant correlations exist between Ca2+ and Pacific circulation indices (Pacific Decadal Oscillation, Southern Oscillation Index and Niño 4), which suggests that the increased frequency of extreme El Niño and La Niña events due to a warming climate has extended their influence to the Middle East. Evidence demonstrates that the increase in Ca2+ concentration in the ice core cannot be attributed to human activities, such as coal combustion and cement production. Article in Journal/Newspaper ice core Niedersächsisches Online-Archiv NOA Pacific Atmospheric Chemistry and Physics 19 22 14133 14148 |
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article Verlagsveröffentlichung Kutuzov, Stanislav Legrand, Michel Preunkert, Susanne Ginot, Patrick Mikhalenko, Vladimir Shukurov, Karim Poliukhov, Aleksei Toropov, Pavel The Elbrus (Caucasus, Russia) ice core record – Part 2: history of desert dust deposition |
topic_facet |
article Verlagsveröffentlichung |
description |
Ice cores are one of the most valuable paleo-archives. Records from ice cores provide information not only about the amount of dust in the atmosphere, but also about dust sources and their changes in the past. In 2009, a 182 m long ice core was recovered from the western plateau of Mt Elbrus (5115 m a.s.l.). This record was further extended after a shallow ice core was drilled in 2013. Here we analyse Ca2+ concentrations, a commonly used proxy of dust, recorded in these Elbrus ice records over the time period of 1774–2013 CE. The Ca2+ record reveals quasi-decadal variability with a generally increasing trend. Using multiple regression analysis, we found a statistically significant spatial correlation of the Elbrus Ca2+ summer concentrations with precipitation and soil moisture content in the Levant region (specifically Syria and Iraq). The Ca2+ record also correlates with drought indices in North Africa (r=0.67, p<0.001) and Middle East regions (r=0.71, p<0.001). Dust concentrations prominently increase in the ice core over the past 200 years, confirming that the recent droughts in the Fertile Crescent (1998–2012 CE) present the most severe aridity experienced in at least the past two centuries. For the most recent 33 years recorded (1979–2012 CE), significant correlations exist between Ca2+ and Pacific circulation indices (Pacific Decadal Oscillation, Southern Oscillation Index and Niño 4), which suggests that the increased frequency of extreme El Niño and La Niña events due to a warming climate has extended their influence to the Middle East. Evidence demonstrates that the increase in Ca2+ concentration in the ice core cannot be attributed to human activities, such as coal combustion and cement production. |
format |
Article in Journal/Newspaper |
author |
Kutuzov, Stanislav Legrand, Michel Preunkert, Susanne Ginot, Patrick Mikhalenko, Vladimir Shukurov, Karim Poliukhov, Aleksei Toropov, Pavel |
author_facet |
Kutuzov, Stanislav Legrand, Michel Preunkert, Susanne Ginot, Patrick Mikhalenko, Vladimir Shukurov, Karim Poliukhov, Aleksei Toropov, Pavel |
author_sort |
Kutuzov, Stanislav |
title |
The Elbrus (Caucasus, Russia) ice core record – Part 2: history of desert dust deposition |
title_short |
The Elbrus (Caucasus, Russia) ice core record – Part 2: history of desert dust deposition |
title_full |
The Elbrus (Caucasus, Russia) ice core record – Part 2: history of desert dust deposition |
title_fullStr |
The Elbrus (Caucasus, Russia) ice core record – Part 2: history of desert dust deposition |
title_full_unstemmed |
The Elbrus (Caucasus, Russia) ice core record – Part 2: history of desert dust deposition |
title_sort |
elbrus (caucasus, russia) ice core record – part 2: history of desert dust deposition |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/acp-19-14133-2019 https://noa.gwlb.de/receive/cop_mods_00049543 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00049162/acp-19-14133-2019.pdf https://acp.copernicus.org/articles/19/14133/2019/acp-19-14133-2019.pdf |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
ice core |
genre_facet |
ice core |
op_relation |
Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-19-14133-2019 https://noa.gwlb.de/receive/cop_mods_00049543 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00049162/acp-19-14133-2019.pdf https://acp.copernicus.org/articles/19/14133/2019/acp-19-14133-2019.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/acp-19-14133-2019 |
container_title |
Atmospheric Chemistry and Physics |
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19 |
container_issue |
22 |
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14133 |
op_container_end_page |
14148 |
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1766029027604168704 |