Formation and propagation of great salinity anomalies
North Atlantic/Arctic ocean and sea ice variability for the period 1948–2001 is studied using a global Ocean General Circulation Model coupled to a dynamic/thermodynamic sea ice model forced by daily NCEP/NCAR reanalysis data [Kalnay et al., 1996]. Variability of Arctic sea ice properties is analyse...
Published in: | Geophysical Research Letters |
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Language: | English |
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AGU (American Geophysical Union)
2003
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Online Access: | https://oceanrep.geomar.de/id/eprint/6469/ https://oceanrep.geomar.de/id/eprint/6469/1/2003GL017065.pdf https://doi.org/10.1029/2003GL017065 |
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ftoceanrep:oai:oceanrep.geomar.de:6469 2023-05-15T14:49:35+02:00 Formation and propagation of great salinity anomalies Haak, H. Jungclaus, J. Mikolajewicz, U. Latif, Mojib 2003 text https://oceanrep.geomar.de/id/eprint/6469/ https://oceanrep.geomar.de/id/eprint/6469/1/2003GL017065.pdf https://doi.org/10.1029/2003GL017065 en eng AGU (American Geophysical Union) https://oceanrep.geomar.de/id/eprint/6469/1/2003GL017065.pdf Haak, H., Jungclaus, J., Mikolajewicz, U. and Latif, M. (2003) Formation and propagation of great salinity anomalies. Open Access Geophysical Research Letters, 30 (9). pp. 1473-1476. DOI 10.1029/2003GL017065 <https://doi.org/10.1029/2003GL017065>. doi:10.1029/2003GL017065 info:eu-repo/semantics/openAccess Article PeerReviewed 2003 ftoceanrep https://doi.org/10.1029/2003GL017065 2023-04-07T14:53:01Z North Atlantic/Arctic ocean and sea ice variability for the period 1948–2001 is studied using a global Ocean General Circulation Model coupled to a dynamic/thermodynamic sea ice model forced by daily NCEP/NCAR reanalysis data [Kalnay et al., 1996]. Variability of Arctic sea ice properties is analysed, in particular the formation and propagation of sea ice thickness anomalies that are communicated via Fram Strait into the North Atlantic. These export events led to the Great Salinity Anomalies (GSA) of the 1970s, 1980s and 1990s in the Labrador Sea (LS). All GSAs were found to be remotely excited in the Arctic, rather than by local atmospheric forcing over the LS. Sea ice and fresh water exports through the Canadian Archipelago (CAA) are found to be only of minor importance, except for the 1990s GSA. Part of the anomalies are tracked to the Newfoundland Basin, where they enter the North Atlantic Current. The experiments indicate only a minor impact of a single GSA event on the strength of the North Atlantic Thermohaline Circulation (THC). Article in Journal/Newspaper Arctic Arctic Ocean Atlantic Arctic Atlantic-Arctic Canadian Archipelago Fram Strait Labrador Sea Newfoundland north atlantic current North Atlantic North atlantic Thermohaline circulation Sea ice OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Arctic Ocean Newfoundland Geophysical Research Letters 30 9 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
North Atlantic/Arctic ocean and sea ice variability for the period 1948–2001 is studied using a global Ocean General Circulation Model coupled to a dynamic/thermodynamic sea ice model forced by daily NCEP/NCAR reanalysis data [Kalnay et al., 1996]. Variability of Arctic sea ice properties is analysed, in particular the formation and propagation of sea ice thickness anomalies that are communicated via Fram Strait into the North Atlantic. These export events led to the Great Salinity Anomalies (GSA) of the 1970s, 1980s and 1990s in the Labrador Sea (LS). All GSAs were found to be remotely excited in the Arctic, rather than by local atmospheric forcing over the LS. Sea ice and fresh water exports through the Canadian Archipelago (CAA) are found to be only of minor importance, except for the 1990s GSA. Part of the anomalies are tracked to the Newfoundland Basin, where they enter the North Atlantic Current. The experiments indicate only a minor impact of a single GSA event on the strength of the North Atlantic Thermohaline Circulation (THC). |
format |
Article in Journal/Newspaper |
author |
Haak, H. Jungclaus, J. Mikolajewicz, U. Latif, Mojib |
spellingShingle |
Haak, H. Jungclaus, J. Mikolajewicz, U. Latif, Mojib Formation and propagation of great salinity anomalies |
author_facet |
Haak, H. Jungclaus, J. Mikolajewicz, U. Latif, Mojib |
author_sort |
Haak, H. |
title |
Formation and propagation of great salinity anomalies |
title_short |
Formation and propagation of great salinity anomalies |
title_full |
Formation and propagation of great salinity anomalies |
title_fullStr |
Formation and propagation of great salinity anomalies |
title_full_unstemmed |
Formation and propagation of great salinity anomalies |
title_sort |
formation and propagation of great salinity anomalies |
publisher |
AGU (American Geophysical Union) |
publishDate |
2003 |
url |
https://oceanrep.geomar.de/id/eprint/6469/ https://oceanrep.geomar.de/id/eprint/6469/1/2003GL017065.pdf https://doi.org/10.1029/2003GL017065 |
geographic |
Arctic Arctic Ocean Newfoundland |
geographic_facet |
Arctic Arctic Ocean Newfoundland |
genre |
Arctic Arctic Ocean Atlantic Arctic Atlantic-Arctic Canadian Archipelago Fram Strait Labrador Sea Newfoundland north atlantic current North Atlantic North atlantic Thermohaline circulation Sea ice |
genre_facet |
Arctic Arctic Ocean Atlantic Arctic Atlantic-Arctic Canadian Archipelago Fram Strait Labrador Sea Newfoundland north atlantic current North Atlantic North atlantic Thermohaline circulation Sea ice |
op_relation |
https://oceanrep.geomar.de/id/eprint/6469/1/2003GL017065.pdf Haak, H., Jungclaus, J., Mikolajewicz, U. and Latif, M. (2003) Formation and propagation of great salinity anomalies. Open Access Geophysical Research Letters, 30 (9). pp. 1473-1476. DOI 10.1029/2003GL017065 <https://doi.org/10.1029/2003GL017065>. doi:10.1029/2003GL017065 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2003GL017065 |
container_title |
Geophysical Research Letters |
container_volume |
30 |
container_issue |
9 |
_version_ |
1766320671522029568 |