The Arctic freshwater cycle during a naturally and an anthropogenically induced warm climate
The Arctic freshwater cycle plays an important role in regulating regional and global climate. Current observations suggest that an intensification of the highnorthern latitude hydrological cycle has caused a freshening of the Arctic and sub-Arctic seas, increasing the potential of weakening overtur...
Published in: | Climate Dynamics |
---|---|
Main Authors: | , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Springer-Verlag Germany
2014
|
Subjects: | |
Online Access: | http://hdl.handle.net/2078.1/154425 https://doi.org/10.1007/s00382-013-1849-y |
id |
ftunistlouisbrus:oai:dial.uclouvain.be:boreal:154425 |
---|---|
record_format |
openpolar |
spelling |
ftunistlouisbrus:oai:dial.uclouvain.be:boreal:154425 2024-05-12T07:58:02+00:00 The Arctic freshwater cycle during a naturally and an anthropogenically induced warm climate Davies, Frazer J. Renssen, Hans Goosse, Hugues UCL - SST/ELI/ELIC - Earth & Climate 2014 http://hdl.handle.net/2078.1/154425 https://doi.org/10.1007/s00382-013-1849-y eng eng Springer-Verlag Germany boreal:154425 http://hdl.handle.net/2078.1/154425 doi:10.1007/s00382-013-1849-y urn:ISSN:0930-7575 urn:EISSN:1432-0894 info:eu-repo/semantics/restrictedAccess Climate Dynamics, Vol. 42, no.7-8, p. 2099-2112 (2013) Artic Ocean Freshwater balance Anthropogenic Holocene Thermal maximum CECI: CISM 1443 info:eu-repo/semantics/article 2014 ftunistlouisbrus https://doi.org/10.1007/s00382-013-1849-y 2024-04-18T17:52:56Z The Arctic freshwater cycle plays an important role in regulating regional and global climate. Current observations suggest that an intensification of the highnorthern latitude hydrological cycle has caused a freshening of the Arctic and sub-Arctic seas, increasing the potential of weakening overturning strength in the Nordic seas, and reducing temperatures. It is not known if this freshening is a manifestation of the current anthropogenic warming and if the Arctic freshwater cycle has exhibited similar changes in the past, in particular as a response to naturally induced periods of warming, for example during the mid-Holocene hypsithermal. Thus, we have used an earth model of intermediate complexity, LOVECLIM, to investigate the response of the Arctic freshwater cycle, during two warm periods that evolved under different sets of forcings, the mid-Holocene and the twenty-first century. A combination of proxy reconstructions and modelling studies have shown these two periods to exhibit similar surface temperature anomalies, compared to the preindustrial period, however, it has yet to be determined if the Arctic freshwater cycle and thus, the transport and redistribution of freshwater to the Arctic and the sub-Arctic seas, during these two warm periods, is comparable. Here we provide an overview that shows that the response of the Arctic freshwater cycle during the first half of the twentyfirst century can be interpreted as an ‘extreme’ mid-Holocene hydrological cycle. Whilst for the remainder of the twenty-first century, the Arctic freshwater cycle and the majority of its components will likely transition into what can only be described as truly anthropogenic in nature. Article in Journal/Newspaper Arctic Nordic Seas DIAL@USL-B (Université Saint-Louis, Bruxelles) Arctic Climate Dynamics 42 7-8 2099 2112 |
institution |
Open Polar |
collection |
DIAL@USL-B (Université Saint-Louis, Bruxelles) |
op_collection_id |
ftunistlouisbrus |
language |
English |
topic |
Artic Ocean Freshwater balance Anthropogenic Holocene Thermal maximum CECI: CISM 1443 |
spellingShingle |
Artic Ocean Freshwater balance Anthropogenic Holocene Thermal maximum CECI: CISM 1443 Davies, Frazer J. Renssen, Hans Goosse, Hugues The Arctic freshwater cycle during a naturally and an anthropogenically induced warm climate |
topic_facet |
Artic Ocean Freshwater balance Anthropogenic Holocene Thermal maximum CECI: CISM 1443 |
description |
The Arctic freshwater cycle plays an important role in regulating regional and global climate. Current observations suggest that an intensification of the highnorthern latitude hydrological cycle has caused a freshening of the Arctic and sub-Arctic seas, increasing the potential of weakening overturning strength in the Nordic seas, and reducing temperatures. It is not known if this freshening is a manifestation of the current anthropogenic warming and if the Arctic freshwater cycle has exhibited similar changes in the past, in particular as a response to naturally induced periods of warming, for example during the mid-Holocene hypsithermal. Thus, we have used an earth model of intermediate complexity, LOVECLIM, to investigate the response of the Arctic freshwater cycle, during two warm periods that evolved under different sets of forcings, the mid-Holocene and the twenty-first century. A combination of proxy reconstructions and modelling studies have shown these two periods to exhibit similar surface temperature anomalies, compared to the preindustrial period, however, it has yet to be determined if the Arctic freshwater cycle and thus, the transport and redistribution of freshwater to the Arctic and the sub-Arctic seas, during these two warm periods, is comparable. Here we provide an overview that shows that the response of the Arctic freshwater cycle during the first half of the twentyfirst century can be interpreted as an ‘extreme’ mid-Holocene hydrological cycle. Whilst for the remainder of the twenty-first century, the Arctic freshwater cycle and the majority of its components will likely transition into what can only be described as truly anthropogenic in nature. |
author2 |
UCL - SST/ELI/ELIC - Earth & Climate |
format |
Article in Journal/Newspaper |
author |
Davies, Frazer J. Renssen, Hans Goosse, Hugues |
author_facet |
Davies, Frazer J. Renssen, Hans Goosse, Hugues |
author_sort |
Davies, Frazer J. |
title |
The Arctic freshwater cycle during a naturally and an anthropogenically induced warm climate |
title_short |
The Arctic freshwater cycle during a naturally and an anthropogenically induced warm climate |
title_full |
The Arctic freshwater cycle during a naturally and an anthropogenically induced warm climate |
title_fullStr |
The Arctic freshwater cycle during a naturally and an anthropogenically induced warm climate |
title_full_unstemmed |
The Arctic freshwater cycle during a naturally and an anthropogenically induced warm climate |
title_sort |
arctic freshwater cycle during a naturally and an anthropogenically induced warm climate |
publisher |
Springer-Verlag Germany |
publishDate |
2014 |
url |
http://hdl.handle.net/2078.1/154425 https://doi.org/10.1007/s00382-013-1849-y |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Nordic Seas |
genre_facet |
Arctic Nordic Seas |
op_source |
Climate Dynamics, Vol. 42, no.7-8, p. 2099-2112 (2013) |
op_relation |
boreal:154425 http://hdl.handle.net/2078.1/154425 doi:10.1007/s00382-013-1849-y urn:ISSN:0930-7575 urn:EISSN:1432-0894 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00382-013-1849-y |
container_title |
Climate Dynamics |
container_volume |
42 |
container_issue |
7-8 |
container_start_page |
2099 |
op_container_end_page |
2112 |
_version_ |
1798838387771179008 |