Reduction of Deepwater Formation in the Greenland Sea During the 1980s: Evidence from Tracer Data
Hydrographic observations and measurements of the concentrations of chlorofluorocarbons (CFCs) have suggested that the formation of Greenland Sea Deep Water (GSDW) slowed down considerably during the 1980s. Such a decrease is related to weakened convection in the Greenland Sea and thus could have si...
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American Association for the Advancement of Science (AAAS)
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Online Access: | http://dx.doi.org/10.1126/science.251.4997.1054 https://www.science.org/doi/pdf/10.1126/science.251.4997.1054 |
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craaas:10.1126/science.251.4997.1054 2024-06-23T07:53:08+00:00 Reduction of Deepwater Formation in the Greenland Sea During the 1980s: Evidence from Tracer Data Schlosser, Peter Bönisch, Gerhard Rhein, Monika Bayer, Reinhold 1991 http://dx.doi.org/10.1126/science.251.4997.1054 https://www.science.org/doi/pdf/10.1126/science.251.4997.1054 en eng American Association for the Advancement of Science (AAAS) Science volume 251, issue 4997, page 1054-1056 ISSN 0036-8075 1095-9203 journal-article 1991 craaas https://doi.org/10.1126/science.251.4997.1054 2024-06-13T04:01:31Z Hydrographic observations and measurements of the concentrations of chlorofluorocarbons (CFCs) have suggested that the formation of Greenland Sea Deep Water (GSDW) slowed down considerably during the 1980s. Such a decrease is related to weakened convection in the Greenland Sea and thus could have significant impact on the properties of the waters flowing over the Scotland-Iceland-Greenland ridge system into the deep Atlantic. Study of the variability of GSDW formation is relevant for understanding the impact of the circulation in the European Polar seas on regional and global deep water characteristics. New long-term multitracer observations from the Greenland Sea show that GSDW formation indeed was greatly reduced during the 1980s. A box model of deepwater formation and exchange in the European Polar seas tuned by the tracer data indicates that the reduction rate of GSDW formation was about 80 percent and that the start date of the reduction was between 1978 and 1982. Article in Journal/Newspaper Greenland Greenland Sea Iceland AAAS Resource Center (American Association for the Advancement of Science) Greenland Science 251 4997 1054 1056 |
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Open Polar |
collection |
AAAS Resource Center (American Association for the Advancement of Science) |
op_collection_id |
craaas |
language |
English |
description |
Hydrographic observations and measurements of the concentrations of chlorofluorocarbons (CFCs) have suggested that the formation of Greenland Sea Deep Water (GSDW) slowed down considerably during the 1980s. Such a decrease is related to weakened convection in the Greenland Sea and thus could have significant impact on the properties of the waters flowing over the Scotland-Iceland-Greenland ridge system into the deep Atlantic. Study of the variability of GSDW formation is relevant for understanding the impact of the circulation in the European Polar seas on regional and global deep water characteristics. New long-term multitracer observations from the Greenland Sea show that GSDW formation indeed was greatly reduced during the 1980s. A box model of deepwater formation and exchange in the European Polar seas tuned by the tracer data indicates that the reduction rate of GSDW formation was about 80 percent and that the start date of the reduction was between 1978 and 1982. |
format |
Article in Journal/Newspaper |
author |
Schlosser, Peter Bönisch, Gerhard Rhein, Monika Bayer, Reinhold |
spellingShingle |
Schlosser, Peter Bönisch, Gerhard Rhein, Monika Bayer, Reinhold Reduction of Deepwater Formation in the Greenland Sea During the 1980s: Evidence from Tracer Data |
author_facet |
Schlosser, Peter Bönisch, Gerhard Rhein, Monika Bayer, Reinhold |
author_sort |
Schlosser, Peter |
title |
Reduction of Deepwater Formation in the Greenland Sea During the 1980s: Evidence from Tracer Data |
title_short |
Reduction of Deepwater Formation in the Greenland Sea During the 1980s: Evidence from Tracer Data |
title_full |
Reduction of Deepwater Formation in the Greenland Sea During the 1980s: Evidence from Tracer Data |
title_fullStr |
Reduction of Deepwater Formation in the Greenland Sea During the 1980s: Evidence from Tracer Data |
title_full_unstemmed |
Reduction of Deepwater Formation in the Greenland Sea During the 1980s: Evidence from Tracer Data |
title_sort |
reduction of deepwater formation in the greenland sea during the 1980s: evidence from tracer data |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
1991 |
url |
http://dx.doi.org/10.1126/science.251.4997.1054 https://www.science.org/doi/pdf/10.1126/science.251.4997.1054 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland Sea Iceland |
genre_facet |
Greenland Greenland Sea Iceland |
op_source |
Science volume 251, issue 4997, page 1054-1056 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.251.4997.1054 |
container_title |
Science |
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251 |
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4997 |
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1054 |
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1056 |
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1802644636162850816 |