Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle
Iodine has a significant impact on promoting the formation of new ultrafine aerosol particles and accelerating tropospheric ozone loss, thereby affecting radiative forcing and climate. Therefore, understanding the long-term natural evolution of iodine, and its coupling with climate variability, is k...
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ftawi:oai:epic.awi.de:55832 2024-09-15T17:51:28+00:00 Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle Corella, Juan Pablo Maffezzoli, Niccolo Spolaor, Andrea Vallelonga, Paul Cuevas, Carlos A. Scoto, Federico Müller, Juliane Vinther, Bo Kjær, Helle A. Cozzi, Giulio Edwards, Ross Barbante, Carlo Saiz-Lopez, Alfonso 2022 https://epic.awi.de/id/eprint/55832/ https://doi.org/10.1038/s41467-021-27642-5 https://hdl.handle.net/10013/epic.a5cc0371-acca-478a-a0cc-ae462878d28d unknown Corella, J. P. , Maffezzoli, N. , Spolaor, A. , Vallelonga, P. , Cuevas, C. A. , Scoto, F. , Müller, J. orcid:0000-0003-0724-4131 , Vinther, B. , Kjær, H. A. , Cozzi, G. , Edwards, R. , Barbante, C. and Saiz-Lopez, A. (2022) Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle , Nature Communications, 13 (1) . doi:10.1038/s41467-021-27642-5 <https://doi.org/10.1038/s41467-021-27642-5> , hdl:10013/epic.a5cc0371-acca-478a-a0cc-ae462878d28d EPIC3Nature Communications, 13(1), ISSN: 2041-1723 Article isiRev info:eu-repo/semantics/article 2022 ftawi https://doi.org/10.1038/s41467-021-27642-5 2024-06-24T04:28:46Z Iodine has a significant impact on promoting the formation of new ultrafine aerosol particles and accelerating tropospheric ozone loss, thereby affecting radiative forcing and climate. Therefore, understanding the long-term natural evolution of iodine, and its coupling with climate variability, is key to adequately assess its effect on climate on centennial to millennial timescales. Here, using two Greenland ice cores (NEEM and RECAP), we report the Arctic iodine variability during the last 127,000 years. We find the highest and lowest iodine levels recorded during interglacial and glacial periods, respectively, modulated by ocean bioproductivity and sea ice dynamics. Our sub-decadal resolution measurements reveal that high frequency iodine emission variability occurred in pace with Dansgaard/Oeschger events, highlighting the rapid Arctic ocean-ice-atmosphere iodine exchange response to abrupt climate changes. Finally, we discuss if iodine levels during past warmer-than-present climate phases can serve as analogues of future scenarios under an expected ice-free Arctic Ocean. We argue that the combination of natural biogenic ocean iodine release (boosted by ongoing Arctic warming and sea ice retreat) and anthropogenic ozone-induced iodine emissions may lead to a near future scenario with the highest iodine levels of the last 127,000 years. Article in Journal/Newspaper Arctic Arctic Ocean Dansgaard-Oeschger events Greenland Greenland ice cores Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Nature Communications 13 1 |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
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unknown |
description |
Iodine has a significant impact on promoting the formation of new ultrafine aerosol particles and accelerating tropospheric ozone loss, thereby affecting radiative forcing and climate. Therefore, understanding the long-term natural evolution of iodine, and its coupling with climate variability, is key to adequately assess its effect on climate on centennial to millennial timescales. Here, using two Greenland ice cores (NEEM and RECAP), we report the Arctic iodine variability during the last 127,000 years. We find the highest and lowest iodine levels recorded during interglacial and glacial periods, respectively, modulated by ocean bioproductivity and sea ice dynamics. Our sub-decadal resolution measurements reveal that high frequency iodine emission variability occurred in pace with Dansgaard/Oeschger events, highlighting the rapid Arctic ocean-ice-atmosphere iodine exchange response to abrupt climate changes. Finally, we discuss if iodine levels during past warmer-than-present climate phases can serve as analogues of future scenarios under an expected ice-free Arctic Ocean. We argue that the combination of natural biogenic ocean iodine release (boosted by ongoing Arctic warming and sea ice retreat) and anthropogenic ozone-induced iodine emissions may lead to a near future scenario with the highest iodine levels of the last 127,000 years. |
format |
Article in Journal/Newspaper |
author |
Corella, Juan Pablo Maffezzoli, Niccolo Spolaor, Andrea Vallelonga, Paul Cuevas, Carlos A. Scoto, Federico Müller, Juliane Vinther, Bo Kjær, Helle A. Cozzi, Giulio Edwards, Ross Barbante, Carlo Saiz-Lopez, Alfonso |
spellingShingle |
Corella, Juan Pablo Maffezzoli, Niccolo Spolaor, Andrea Vallelonga, Paul Cuevas, Carlos A. Scoto, Federico Müller, Juliane Vinther, Bo Kjær, Helle A. Cozzi, Giulio Edwards, Ross Barbante, Carlo Saiz-Lopez, Alfonso Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle |
author_facet |
Corella, Juan Pablo Maffezzoli, Niccolo Spolaor, Andrea Vallelonga, Paul Cuevas, Carlos A. Scoto, Federico Müller, Juliane Vinther, Bo Kjær, Helle A. Cozzi, Giulio Edwards, Ross Barbante, Carlo Saiz-Lopez, Alfonso |
author_sort |
Corella, Juan Pablo |
title |
Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle |
title_short |
Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle |
title_full |
Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle |
title_fullStr |
Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle |
title_full_unstemmed |
Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle |
title_sort |
climate changes modulated the history of arctic iodine during the last glacial cycle |
publishDate |
2022 |
url |
https://epic.awi.de/id/eprint/55832/ https://doi.org/10.1038/s41467-021-27642-5 https://hdl.handle.net/10013/epic.a5cc0371-acca-478a-a0cc-ae462878d28d |
genre |
Arctic Arctic Ocean Dansgaard-Oeschger events Greenland Greenland ice cores Sea ice |
genre_facet |
Arctic Arctic Ocean Dansgaard-Oeschger events Greenland Greenland ice cores Sea ice |
op_source |
EPIC3Nature Communications, 13(1), ISSN: 2041-1723 |
op_relation |
Corella, J. P. , Maffezzoli, N. , Spolaor, A. , Vallelonga, P. , Cuevas, C. A. , Scoto, F. , Müller, J. orcid:0000-0003-0724-4131 , Vinther, B. , Kjær, H. A. , Cozzi, G. , Edwards, R. , Barbante, C. and Saiz-Lopez, A. (2022) Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle , Nature Communications, 13 (1) . doi:10.1038/s41467-021-27642-5 <https://doi.org/10.1038/s41467-021-27642-5> , hdl:10013/epic.a5cc0371-acca-478a-a0cc-ae462878d28d |
op_doi |
https://doi.org/10.1038/s41467-021-27642-5 |
container_title |
Nature Communications |
container_volume |
13 |
container_issue |
1 |
_version_ |
1810293379727097856 |