Circulation
Circulation is important to distributions of salt, of deep-ocean heat and hence regional climate, of pollutants and of many species carried by the flow during their lifecycle. Currents affect offshore operations and habitats. Five sections from 1957 to 2004 suggest decline of the Atlantic Meridional...
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Department for Environment Food and Rural Affairs
2010
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ftnerc:oai:nora.nerc.ac.uk:10521 2023-05-15T17:24:21+02:00 Circulation Huthnance, John 2010-07-21 text http://nora.nerc.ac.uk/id/eprint/10521/ https://nora.nerc.ac.uk/id/eprint/10521/1/CircNORA.pdf http://chartingprogress.defra.gov.uk/feeder/Section_3.4_Circulation.pdf en eng Department for Environment Food and Rural Affairs https://nora.nerc.ac.uk/id/eprint/10521/1/CircNORA.pdf Huthnance, John orcid:0000-0002-3682-2896 . 2010 Circulation. London, UK, Department for Environment Food and Rural Affairs, 20pp. Marine Sciences Physics Data and Information Publication - Report NonPeerReviewed 2010 ftnerc 2023-02-04T19:26:45Z Circulation is important to distributions of salt, of deep-ocean heat and hence regional climate, of pollutants and of many species carried by the flow during their lifecycle. Currents affect offshore operations and habitats. Five sections from 1957 to 2004 suggest decline of the Atlantic Meridional Overturning Circulatin (AMOC) but this is within the range of large variability on time-scales of weeks to months. An overall trend has not been determined from the continuous measurements begun in 2004. Deep outflows of cold water from the Nordic seas are likewise too variable to infer any overall trend. Strong North Atlantic flow eastwards towards the UK may correlate with positive North Atlantic Oscillation (NAO) Index (i.e. prevailing westerly winds). Enhanced along-slope current around the UK may correlate with a negative NAO Index. Climate models’ consensus makes it very likely that AMOC will decrease over the next century, but not ‘shut down’ completely. Similar spatial and temporal variability (arising from complex topography and variable forcing) is likely in future. Report Nordic Seas North Atlantic North Atlantic oscillation Natural Environment Research Council: NERC Open Research Archive |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
topic |
Marine Sciences Physics Data and Information |
spellingShingle |
Marine Sciences Physics Data and Information Huthnance, John Circulation |
topic_facet |
Marine Sciences Physics Data and Information |
description |
Circulation is important to distributions of salt, of deep-ocean heat and hence regional climate, of pollutants and of many species carried by the flow during their lifecycle. Currents affect offshore operations and habitats. Five sections from 1957 to 2004 suggest decline of the Atlantic Meridional Overturning Circulatin (AMOC) but this is within the range of large variability on time-scales of weeks to months. An overall trend has not been determined from the continuous measurements begun in 2004. Deep outflows of cold water from the Nordic seas are likewise too variable to infer any overall trend. Strong North Atlantic flow eastwards towards the UK may correlate with positive North Atlantic Oscillation (NAO) Index (i.e. prevailing westerly winds). Enhanced along-slope current around the UK may correlate with a negative NAO Index. Climate models’ consensus makes it very likely that AMOC will decrease over the next century, but not ‘shut down’ completely. Similar spatial and temporal variability (arising from complex topography and variable forcing) is likely in future. |
format |
Report |
author |
Huthnance, John |
author_facet |
Huthnance, John |
author_sort |
Huthnance, John |
title |
Circulation |
title_short |
Circulation |
title_full |
Circulation |
title_fullStr |
Circulation |
title_full_unstemmed |
Circulation |
title_sort |
circulation |
publisher |
Department for Environment Food and Rural Affairs |
publishDate |
2010 |
url |
http://nora.nerc.ac.uk/id/eprint/10521/ https://nora.nerc.ac.uk/id/eprint/10521/1/CircNORA.pdf http://chartingprogress.defra.gov.uk/feeder/Section_3.4_Circulation.pdf |
genre |
Nordic Seas North Atlantic North Atlantic oscillation |
genre_facet |
Nordic Seas North Atlantic North Atlantic oscillation |
op_relation |
https://nora.nerc.ac.uk/id/eprint/10521/1/CircNORA.pdf Huthnance, John orcid:0000-0002-3682-2896 . 2010 Circulation. London, UK, Department for Environment Food and Rural Affairs, 20pp. |
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1766115318463201280 |