Tilstanden i havet under den unormale vinter 1963
During the winter of 1963, with great negative anomalies in the air temperatures (Tab. 1), and relative low cloudiness, the cooling of the sea by radiation, conduction and partly also by evaporation, has resulted in very low sea temperature in wide areas and severe forming of ice in the Baltic, the...
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Havforskningsinstituttet
1963
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ftimr:oai:imr.brage.unit.no:11250/113775 2023-05-15T15:39:12+02:00 Tilstanden i havet under den unormale vinter 1963 Eggvin, Jens 1963 application/pdf http://hdl.handle.net/11250/113775 nob nob Havforskningsinstituttet Fisken og havet;1963 - Nr. 1 urn:issn:0071-5638 http://hdl.handle.net/11250/113775 8 s. oceanography oseanografi environmental conditions miljøtilstand VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 Journal article 1963 ftimr 2021-09-23T20:15:06Z During the winter of 1963, with great negative anomalies in the air temperatures (Tab. 1), and relative low cloudiness, the cooling of the sea by radiation, conduction and partly also by evaporation, has resulted in very low sea temperature in wide areas and severe forming of ice in the Baltic, the Kattegat and the Skagerack. (Fig. 1). The south-eastern North Sea has in February, temperature from below 0° to 3° and 4° from surface to bottom or 4 1/2° to 2° below normal. Off the coast of England, the temperature is 1°-1 1/2° below normal. The anomaly decrease toward the North to zero and in the Færoe-Shetland Channel the temperature is a little above normal. Along the Norwegian coast the temperature is lower at the Skagerack coast, below -1° with anomalies up to 3 1/2° C. The belt of cold water with a thickness of 20 to 80 meters along the Norwegian coast has presumably hampered the catch of winter herring. The density of the water in the south-eastern part of the north sea is greater than in the other area including the Norwegian Channel. Taking the direction of the current into consideration, it is anticipated that the deep-and bottom-water of the Norwegian Channel will be renewed by this heavy and considerably colder water. Further, it is expected that it will take relatively long time (months) before normal temperature conditions are again established in the deepest parts of the Norwegian Channel. The temperatures in the watermasses off Finnmark and in the Barents Sea are considerably below normal. The Atlantic water in the Faroe Shetland Channel, and in the southgoing warm current penetrating into Skagerack along the western part of the Norwegian Channel (Revet), has from normal temperature to 1° above. This may be seen in relation to the fact that the air temperature in the North Atlantic has been above normal in November-December 1962 and in February 1963. It is expected that the unusual hydrographical conditions will have consequences for the fisheries in the south-eastern part of the North Sea, on Revet and off Finnmark. Article in Journal/Newspaper Barents Sea Finnmark North Atlantic Finnmark Institute for Marine Research: Brage IMR Barents Sea Kattegat ENVELOPE(9.692,9.692,63.563,63.563) Revet ENVELOPE(18.155,18.155,69.677,69.677) |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
Norwegian Bokmål |
topic |
oceanography oseanografi environmental conditions miljøtilstand VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 |
spellingShingle |
oceanography oseanografi environmental conditions miljøtilstand VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 Eggvin, Jens Tilstanden i havet under den unormale vinter 1963 |
topic_facet |
oceanography oseanografi environmental conditions miljøtilstand VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 |
description |
During the winter of 1963, with great negative anomalies in the air temperatures (Tab. 1), and relative low cloudiness, the cooling of the sea by radiation, conduction and partly also by evaporation, has resulted in very low sea temperature in wide areas and severe forming of ice in the Baltic, the Kattegat and the Skagerack. (Fig. 1). The south-eastern North Sea has in February, temperature from below 0° to 3° and 4° from surface to bottom or 4 1/2° to 2° below normal. Off the coast of England, the temperature is 1°-1 1/2° below normal. The anomaly decrease toward the North to zero and in the Færoe-Shetland Channel the temperature is a little above normal. Along the Norwegian coast the temperature is lower at the Skagerack coast, below -1° with anomalies up to 3 1/2° C. The belt of cold water with a thickness of 20 to 80 meters along the Norwegian coast has presumably hampered the catch of winter herring. The density of the water in the south-eastern part of the north sea is greater than in the other area including the Norwegian Channel. Taking the direction of the current into consideration, it is anticipated that the deep-and bottom-water of the Norwegian Channel will be renewed by this heavy and considerably colder water. Further, it is expected that it will take relatively long time (months) before normal temperature conditions are again established in the deepest parts of the Norwegian Channel. The temperatures in the watermasses off Finnmark and in the Barents Sea are considerably below normal. The Atlantic water in the Faroe Shetland Channel, and in the southgoing warm current penetrating into Skagerack along the western part of the Norwegian Channel (Revet), has from normal temperature to 1° above. This may be seen in relation to the fact that the air temperature in the North Atlantic has been above normal in November-December 1962 and in February 1963. It is expected that the unusual hydrographical conditions will have consequences for the fisheries in the south-eastern part of the North Sea, on Revet and off Finnmark. |
format |
Article in Journal/Newspaper |
author |
Eggvin, Jens |
author_facet |
Eggvin, Jens |
author_sort |
Eggvin, Jens |
title |
Tilstanden i havet under den unormale vinter 1963 |
title_short |
Tilstanden i havet under den unormale vinter 1963 |
title_full |
Tilstanden i havet under den unormale vinter 1963 |
title_fullStr |
Tilstanden i havet under den unormale vinter 1963 |
title_full_unstemmed |
Tilstanden i havet under den unormale vinter 1963 |
title_sort |
tilstanden i havet under den unormale vinter 1963 |
publisher |
Havforskningsinstituttet |
publishDate |
1963 |
url |
http://hdl.handle.net/11250/113775 |
long_lat |
ENVELOPE(9.692,9.692,63.563,63.563) ENVELOPE(18.155,18.155,69.677,69.677) |
geographic |
Barents Sea Kattegat Revet |
geographic_facet |
Barents Sea Kattegat Revet |
genre |
Barents Sea Finnmark North Atlantic Finnmark |
genre_facet |
Barents Sea Finnmark North Atlantic Finnmark |
op_source |
8 s. |
op_relation |
Fisken og havet;1963 - Nr. 1 urn:issn:0071-5638 http://hdl.handle.net/11250/113775 |
_version_ |
1766370678777315328 |