Little Ice Age abruptly triggered by intrusion of Atlantic waters into the Nordic Seas
The Little Ice Age (LIA) was one of the coldest periods of the postglacial period in the Northern Hemisphere. Although there is increasing evidence that this time interval was associated with weakening of the subpolar gyre (SPG), the sequence of events that led to its weakened state has yet to be ex...
Published in: | Science Advances |
---|---|
Main Authors: | , |
Format: | Text |
Language: | English |
Published: |
American Association for the Advancement of Science
2021
|
Subjects: | |
Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8673760/ http://www.ncbi.nlm.nih.gov/pubmed/34910526 https://doi.org/10.1126/sciadv.abi8230 |
id |
ftpubmed:oai:pubmedcentral.nih.gov:8673760 |
---|---|
record_format |
openpolar |
spelling |
ftpubmed:oai:pubmedcentral.nih.gov:8673760 2023-05-15T17:24:19+02:00 Little Ice Age abruptly triggered by intrusion of Atlantic waters into the Nordic Seas Lapointe, Francois Bradley, Raymond S. 2021-12-15 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8673760/ http://www.ncbi.nlm.nih.gov/pubmed/34910526 https://doi.org/10.1126/sciadv.abi8230 en eng American Association for the Advancement of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8673760/ http://www.ncbi.nlm.nih.gov/pubmed/34910526 http://dx.doi.org/10.1126/sciadv.abi8230 Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. CC-BY-NC Sci Adv Earth Environmental Ecological and Space Sciences Text 2021 ftpubmed https://doi.org/10.1126/sciadv.abi8230 2022-01-02T01:29:15Z The Little Ice Age (LIA) was one of the coldest periods of the postglacial period in the Northern Hemisphere. Although there is increasing evidence that this time interval was associated with weakening of the subpolar gyre (SPG), the sequence of events that led to its weakened state has yet to be explained. Here, we show that the LIA was preceded by an exceptional intrusion of warm Atlantic water into the Nordic Seas in the late 1300s. The intrusion was a consequence of persistent atmospheric blocking over the North Atlantic, linked to unusually high solar activity. The warmer water led to the breakup of sea ice and calving of tidewater glaciers; weakening of the blocking anomaly in the late 1300s allowed the large volume of ice that had accumulated to be exported into the North Atlantic. This led to a weakening of the SPG, setting the stage for the subsequent LIA. Text Nordic Seas North Atlantic Sea ice PubMed Central (PMC) Science Advances 7 51 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Earth Environmental Ecological and Space Sciences |
spellingShingle |
Earth Environmental Ecological and Space Sciences Lapointe, Francois Bradley, Raymond S. Little Ice Age abruptly triggered by intrusion of Atlantic waters into the Nordic Seas |
topic_facet |
Earth Environmental Ecological and Space Sciences |
description |
The Little Ice Age (LIA) was one of the coldest periods of the postglacial period in the Northern Hemisphere. Although there is increasing evidence that this time interval was associated with weakening of the subpolar gyre (SPG), the sequence of events that led to its weakened state has yet to be explained. Here, we show that the LIA was preceded by an exceptional intrusion of warm Atlantic water into the Nordic Seas in the late 1300s. The intrusion was a consequence of persistent atmospheric blocking over the North Atlantic, linked to unusually high solar activity. The warmer water led to the breakup of sea ice and calving of tidewater glaciers; weakening of the blocking anomaly in the late 1300s allowed the large volume of ice that had accumulated to be exported into the North Atlantic. This led to a weakening of the SPG, setting the stage for the subsequent LIA. |
format |
Text |
author |
Lapointe, Francois Bradley, Raymond S. |
author_facet |
Lapointe, Francois Bradley, Raymond S. |
author_sort |
Lapointe, Francois |
title |
Little Ice Age abruptly triggered by intrusion of Atlantic waters into the Nordic Seas |
title_short |
Little Ice Age abruptly triggered by intrusion of Atlantic waters into the Nordic Seas |
title_full |
Little Ice Age abruptly triggered by intrusion of Atlantic waters into the Nordic Seas |
title_fullStr |
Little Ice Age abruptly triggered by intrusion of Atlantic waters into the Nordic Seas |
title_full_unstemmed |
Little Ice Age abruptly triggered by intrusion of Atlantic waters into the Nordic Seas |
title_sort |
little ice age abruptly triggered by intrusion of atlantic waters into the nordic seas |
publisher |
American Association for the Advancement of Science |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8673760/ http://www.ncbi.nlm.nih.gov/pubmed/34910526 https://doi.org/10.1126/sciadv.abi8230 |
genre |
Nordic Seas North Atlantic Sea ice |
genre_facet |
Nordic Seas North Atlantic Sea ice |
op_source |
Sci Adv |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8673760/ http://www.ncbi.nlm.nih.gov/pubmed/34910526 http://dx.doi.org/10.1126/sciadv.abi8230 |
op_rights |
Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.1126/sciadv.abi8230 |
container_title |
Science Advances |
container_volume |
7 |
container_issue |
51 |
_version_ |
1766115283555057664 |