Scheme of anomalies of density, thermal current, upwelling, downwelling and tendency of density in multidecadal oscillation

Figure 3. Scheme of anomalies of density, thermal current, upwelling, downwelling and tendency of density in multidecadal oscillation. The figure is similar to figure 5 in Dijkstra et al (2008) but with anomaly of density rather than temperature. Abstract Data from a 500-year preindustrial control r...

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Main Author: E M Volodin
Format: Still Image
Language:unknown
Published: IOP Publishing 2013
Subjects:
Online Access:https://dx.doi.org/10.6084/m9.figshare.1011847.v1
https://iop.figshare.com/articles/figure/_Scheme_of_anomalies_of_density_thermal_current_upwelling_downwelling_and_tendency_of_density_in_mul/1011847/1
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spelling ftdatacite:10.6084/m9.figshare.1011847.v1 2023-05-15T14:36:56+02:00 Scheme of anomalies of density, thermal current, upwelling, downwelling and tendency of density in multidecadal oscillation E M Volodin 2013 https://dx.doi.org/10.6084/m9.figshare.1011847.v1 https://iop.figshare.com/articles/figure/_Scheme_of_anomalies_of_density_thermal_current_upwelling_downwelling_and_tendency_of_density_in_mul/1011847/1 unknown IOP Publishing https://dx.doi.org/10.6084/m9.figshare.1011847 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Environmental Science Image Figure graphic ImageObject 2013 ftdatacite https://doi.org/10.6084/m9.figshare.1011847.v1 https://doi.org/10.6084/m9.figshare.1011847 2021-11-05T12:55:41Z Figure 3. Scheme of anomalies of density, thermal current, upwelling, downwelling and tendency of density in multidecadal oscillation. The figure is similar to figure 5 in Dijkstra et al (2008) but with anomaly of density rather than temperature. Abstract Data from a 500-year preindustrial control run of climate model INMCM4 show distinct climate variability in the Arctic and North Atlantic with a period of 35–50 years. The variability can be seen as anomalies of upper ocean density that appear in the Arctic and propagate to the North Atlantic. The density gradient in a northeast–southwest direction alternates with the density gradient in a northwest–southeast direction. A positive density anomaly in the Arctic is associated with a positive salinity anomaly, a positive surface temperature anomaly and a reduction of sea ice in the Barents and Kara Seas. The nature of the variability is a vertical advection of density by thermal currents similar to that proposed in Dijkstra et al (2008 Phil. Trans. R. Soc. A 366 ). The cycle of model variability shows that after a negative anomaly of density in the northwest Atlantic, one should expect warming in the Arctic in 5–10 years. The ensemble of decadal predictions with climate model INMCM4 starting from 1995 shows that warming in the western Arctic and especially in the Barents Sea observed in 1996–2010 can be reproduced by eight of ten ensemble members. Arctic climate predictability in this case is associated with a proposed mechanism of a 35–50 year North Atlantic–Arctic oscillation. Still Image Arctic Atlantic Arctic Atlantic-Arctic Barents Sea North Atlantic Northwest Atlantic Sea ice DataCite Metadata Store (German National Library of Science and Technology) Arctic Barents Sea
institution Open Polar
collection DataCite Metadata Store (German National Library of Science and Technology)
op_collection_id ftdatacite
language unknown
topic Environmental Science
spellingShingle Environmental Science
E M Volodin
Scheme of anomalies of density, thermal current, upwelling, downwelling and tendency of density in multidecadal oscillation
topic_facet Environmental Science
description Figure 3. Scheme of anomalies of density, thermal current, upwelling, downwelling and tendency of density in multidecadal oscillation. The figure is similar to figure 5 in Dijkstra et al (2008) but with anomaly of density rather than temperature. Abstract Data from a 500-year preindustrial control run of climate model INMCM4 show distinct climate variability in the Arctic and North Atlantic with a period of 35–50 years. The variability can be seen as anomalies of upper ocean density that appear in the Arctic and propagate to the North Atlantic. The density gradient in a northeast–southwest direction alternates with the density gradient in a northwest–southeast direction. A positive density anomaly in the Arctic is associated with a positive salinity anomaly, a positive surface temperature anomaly and a reduction of sea ice in the Barents and Kara Seas. The nature of the variability is a vertical advection of density by thermal currents similar to that proposed in Dijkstra et al (2008 Phil. Trans. R. Soc. A 366 ). The cycle of model variability shows that after a negative anomaly of density in the northwest Atlantic, one should expect warming in the Arctic in 5–10 years. The ensemble of decadal predictions with climate model INMCM4 starting from 1995 shows that warming in the western Arctic and especially in the Barents Sea observed in 1996–2010 can be reproduced by eight of ten ensemble members. Arctic climate predictability in this case is associated with a proposed mechanism of a 35–50 year North Atlantic–Arctic oscillation.
format Still Image
author E M Volodin
author_facet E M Volodin
author_sort E M Volodin
title Scheme of anomalies of density, thermal current, upwelling, downwelling and tendency of density in multidecadal oscillation
title_short Scheme of anomalies of density, thermal current, upwelling, downwelling and tendency of density in multidecadal oscillation
title_full Scheme of anomalies of density, thermal current, upwelling, downwelling and tendency of density in multidecadal oscillation
title_fullStr Scheme of anomalies of density, thermal current, upwelling, downwelling and tendency of density in multidecadal oscillation
title_full_unstemmed Scheme of anomalies of density, thermal current, upwelling, downwelling and tendency of density in multidecadal oscillation
title_sort scheme of anomalies of density, thermal current, upwelling, downwelling and tendency of density in multidecadal oscillation
publisher IOP Publishing
publishDate 2013
url https://dx.doi.org/10.6084/m9.figshare.1011847.v1
https://iop.figshare.com/articles/figure/_Scheme_of_anomalies_of_density_thermal_current_upwelling_downwelling_and_tendency_of_density_in_mul/1011847/1
geographic Arctic
Barents Sea
geographic_facet Arctic
Barents Sea
genre Arctic
Atlantic Arctic
Atlantic-Arctic
Barents Sea
North Atlantic
Northwest Atlantic
Sea ice
genre_facet Arctic
Atlantic Arctic
Atlantic-Arctic
Barents Sea
North Atlantic
Northwest Atlantic
Sea ice
op_relation https://dx.doi.org/10.6084/m9.figshare.1011847
op_rights Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
cc-by-4.0
op_rightsnorm CC-BY
op_doi https://doi.org/10.6084/m9.figshare.1011847.v1
https://doi.org/10.6084/m9.figshare.1011847
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