The link between the Barents Sea and ENSO events simulated by NEMO model

An analysis of observational data in the Barents Sea along a meridian at 33°30' E between 70°30' and 72°30' N has reported a negative correlation between El Niño/La Niña Southern Oscillation (ENSO) events and water temperature in the top 200 m: the temperature drops about 0.5 °C durin...

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Published in:Ocean Science
Main Authors: V. N. Stepanov, H. Zuo, K. Haines
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2012
Subjects:
geo
Online Access:https://doi.org/10.5194/os-8-971-2012
http://www.ocean-sci.net/8/971/2012/os-8-971-2012.pdf
https://doaj.org/article/a2757f1bca9d4c919d763af04f4deea9
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spelling fttriple:oai:gotriple.eu:oai:doaj.org/article:a2757f1bca9d4c919d763af04f4deea9 2023-05-15T15:37:59+02:00 The link between the Barents Sea and ENSO events simulated by NEMO model V. N. Stepanov H. Zuo K. Haines 2012-11-01 https://doi.org/10.5194/os-8-971-2012 http://www.ocean-sci.net/8/971/2012/os-8-971-2012.pdf https://doaj.org/article/a2757f1bca9d4c919d763af04f4deea9 en eng Copernicus Publications doi:10.5194/os-8-971-2012 1812-0784 1812-0792 http://www.ocean-sci.net/8/971/2012/os-8-971-2012.pdf https://doaj.org/article/a2757f1bca9d4c919d763af04f4deea9 undefined Ocean Science, Vol 8, Iss 6, Pp 971-982 (2012) envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2012 fttriple https://doi.org/10.5194/os-8-971-2012 2023-01-22T19:28:50Z An analysis of observational data in the Barents Sea along a meridian at 33°30' E between 70°30' and 72°30' N has reported a negative correlation between El Niño/La Niña Southern Oscillation (ENSO) events and water temperature in the top 200 m: the temperature drops about 0.5 °C during warm ENSO events while during cold ENSO events the top 200 m layer of the Barents Sea is warmer. Results from 1 and 1/4-degree global NEMO models show a similar response for the whole Barents Sea. During the strong warm ENSO event in 1997–1998 an anomalous anticyclonic atmospheric circulation over the Barents Sea enhances heat loses, as well as substantially influencing the Barents Sea inflow from the North Atlantic, via changes in ocean currents. Under normal conditions along the Scandinavian peninsula there is a warm current entering the Barents Sea from the North Atlantic, however after the 1997–1998 event this current is weakened. During 1997–1998 the model annual mean temperature in the Barents Sea is decreased by about 0.8 °C, also resulting in a higher sea ice volume. In contrast during the cold ENSO events in 1999–2000 and 2007–2008, the model shows a lower sea ice volume, and higher annual mean temperatures in the upper layer of the Barents Sea of about 0.7 °C. An analysis of model data shows that the strength of the Atlantic inflow in the Barents Sea is the main cause of heat content variability, and is forced by changing pressure and winds in the North Atlantic. However, surface heat-exchange with the atmosphere provides the means by which the Barents sea heat budget relaxes to normal in the subsequent year after the ENSO events. Article in Journal/Newspaper Barents Sea North Atlantic Sea ice Unknown Barents Sea Ocean Science 8 6 971 982
institution Open Polar
collection Unknown
op_collection_id fttriple
language English
topic envir
geo
spellingShingle envir
geo
V. N. Stepanov
H. Zuo
K. Haines
The link between the Barents Sea and ENSO events simulated by NEMO model
topic_facet envir
geo
description An analysis of observational data in the Barents Sea along a meridian at 33°30' E between 70°30' and 72°30' N has reported a negative correlation between El Niño/La Niña Southern Oscillation (ENSO) events and water temperature in the top 200 m: the temperature drops about 0.5 °C during warm ENSO events while during cold ENSO events the top 200 m layer of the Barents Sea is warmer. Results from 1 and 1/4-degree global NEMO models show a similar response for the whole Barents Sea. During the strong warm ENSO event in 1997–1998 an anomalous anticyclonic atmospheric circulation over the Barents Sea enhances heat loses, as well as substantially influencing the Barents Sea inflow from the North Atlantic, via changes in ocean currents. Under normal conditions along the Scandinavian peninsula there is a warm current entering the Barents Sea from the North Atlantic, however after the 1997–1998 event this current is weakened. During 1997–1998 the model annual mean temperature in the Barents Sea is decreased by about 0.8 °C, also resulting in a higher sea ice volume. In contrast during the cold ENSO events in 1999–2000 and 2007–2008, the model shows a lower sea ice volume, and higher annual mean temperatures in the upper layer of the Barents Sea of about 0.7 °C. An analysis of model data shows that the strength of the Atlantic inflow in the Barents Sea is the main cause of heat content variability, and is forced by changing pressure and winds in the North Atlantic. However, surface heat-exchange with the atmosphere provides the means by which the Barents sea heat budget relaxes to normal in the subsequent year after the ENSO events.
format Article in Journal/Newspaper
author V. N. Stepanov
H. Zuo
K. Haines
author_facet V. N. Stepanov
H. Zuo
K. Haines
author_sort V. N. Stepanov
title The link between the Barents Sea and ENSO events simulated by NEMO model
title_short The link between the Barents Sea and ENSO events simulated by NEMO model
title_full The link between the Barents Sea and ENSO events simulated by NEMO model
title_fullStr The link between the Barents Sea and ENSO events simulated by NEMO model
title_full_unstemmed The link between the Barents Sea and ENSO events simulated by NEMO model
title_sort link between the barents sea and enso events simulated by nemo model
publisher Copernicus Publications
publishDate 2012
url https://doi.org/10.5194/os-8-971-2012
http://www.ocean-sci.net/8/971/2012/os-8-971-2012.pdf
https://doaj.org/article/a2757f1bca9d4c919d763af04f4deea9
geographic Barents Sea
geographic_facet Barents Sea
genre Barents Sea
North Atlantic
Sea ice
genre_facet Barents Sea
North Atlantic
Sea ice
op_source Ocean Science, Vol 8, Iss 6, Pp 971-982 (2012)
op_relation doi:10.5194/os-8-971-2012
1812-0784
1812-0792
http://www.ocean-sci.net/8/971/2012/os-8-971-2012.pdf
https://doaj.org/article/a2757f1bca9d4c919d763af04f4deea9
op_rights undefined
op_doi https://doi.org/10.5194/os-8-971-2012
container_title Ocean Science
container_volume 8
container_issue 6
container_start_page 971
op_container_end_page 982
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