Interdecadal variability in Labrador Sea precipitation minus evaporation and salinity
Changes in the air–sea freshwater flux (equivalently Precipitation minus Evaporation, P ? E) over the interior of the Labrador Sea have been examined using the NCEP/NCAR and ERA40 reanalyses. A major increase in the net precipitation, equivalent to 9 cm yr?1, is observed in the mid-1970s, consistent...
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ftsouthampton:oai:eprints.soton.ac.uk:44079 2023-07-30T04:04:43+02:00 Interdecadal variability in Labrador Sea precipitation minus evaporation and salinity Myers, P.G. Josey, S.A. Wheler, B. Kulan, N. 2007 https://eprints.soton.ac.uk/44079/ unknown Myers, P.G., Josey, S.A., Wheler, B. and Kulan, N. (2007) Interdecadal variability in Labrador Sea precipitation minus evaporation and salinity. Progress in Oceanography, 73 (3-4), 341-357. (doi:10.1016/j.pocean.2006.06.003 <http://dx.doi.org/10.1016/j.pocean.2006.06.003>). Article PeerReviewed 2007 ftsouthampton https://doi.org/10.1016/j.pocean.2006.06.003 2023-07-09T20:50:53Z Changes in the air–sea freshwater flux (equivalently Precipitation minus Evaporation, P ? E) over the interior of the Labrador Sea have been examined using the NCEP/NCAR and ERA40 reanalyses. A major increase in the net precipitation, equivalent to 9 cm yr?1, is observed in the mid-1970s, consistent with a recent study that reported a similar change in the eastern sub-polar gyre. The increase in the Labrador Sea is primarily driven by changes in the P component which occur in spring (and to a lesser extent summer). The seasonality of the change is markedly different to that found for the eastern gyre which had a strong winter increase in precipitation. Potential links between the Labrador Sea P ? E increase and the NAO and other leading modes of atmospheric variability have been explored, but it has been found that the increase is not driven by long-term trends in these modes. The magnitudes of the increase in freshwater content for a range of depths (500, 1000, 1500, 2000 m) in the Labrador Sea are then calculated. Finally, it is suggested that the P ? E increase must have played some role in causing the observed freshening of the Labrador Sea and the wider North Atlantic sub-polar gyre region in recent decades, although the exact impact can not be quantified. Article in Journal/Newspaper Labrador Sea North Atlantic University of Southampton: e-Prints Soton Progress in Oceanography 73 3-4 341 357 |
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Open Polar |
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University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
unknown |
description |
Changes in the air–sea freshwater flux (equivalently Precipitation minus Evaporation, P ? E) over the interior of the Labrador Sea have been examined using the NCEP/NCAR and ERA40 reanalyses. A major increase in the net precipitation, equivalent to 9 cm yr?1, is observed in the mid-1970s, consistent with a recent study that reported a similar change in the eastern sub-polar gyre. The increase in the Labrador Sea is primarily driven by changes in the P component which occur in spring (and to a lesser extent summer). The seasonality of the change is markedly different to that found for the eastern gyre which had a strong winter increase in precipitation. Potential links between the Labrador Sea P ? E increase and the NAO and other leading modes of atmospheric variability have been explored, but it has been found that the increase is not driven by long-term trends in these modes. The magnitudes of the increase in freshwater content for a range of depths (500, 1000, 1500, 2000 m) in the Labrador Sea are then calculated. Finally, it is suggested that the P ? E increase must have played some role in causing the observed freshening of the Labrador Sea and the wider North Atlantic sub-polar gyre region in recent decades, although the exact impact can not be quantified. |
format |
Article in Journal/Newspaper |
author |
Myers, P.G. Josey, S.A. Wheler, B. Kulan, N. |
spellingShingle |
Myers, P.G. Josey, S.A. Wheler, B. Kulan, N. Interdecadal variability in Labrador Sea precipitation minus evaporation and salinity |
author_facet |
Myers, P.G. Josey, S.A. Wheler, B. Kulan, N. |
author_sort |
Myers, P.G. |
title |
Interdecadal variability in Labrador Sea precipitation minus evaporation and salinity |
title_short |
Interdecadal variability in Labrador Sea precipitation minus evaporation and salinity |
title_full |
Interdecadal variability in Labrador Sea precipitation minus evaporation and salinity |
title_fullStr |
Interdecadal variability in Labrador Sea precipitation minus evaporation and salinity |
title_full_unstemmed |
Interdecadal variability in Labrador Sea precipitation minus evaporation and salinity |
title_sort |
interdecadal variability in labrador sea precipitation minus evaporation and salinity |
publishDate |
2007 |
url |
https://eprints.soton.ac.uk/44079/ |
genre |
Labrador Sea North Atlantic |
genre_facet |
Labrador Sea North Atlantic |
op_relation |
Myers, P.G., Josey, S.A., Wheler, B. and Kulan, N. (2007) Interdecadal variability in Labrador Sea precipitation minus evaporation and salinity. Progress in Oceanography, 73 (3-4), 341-357. (doi:10.1016/j.pocean.2006.06.003 <http://dx.doi.org/10.1016/j.pocean.2006.06.003>). |
op_doi |
https://doi.org/10.1016/j.pocean.2006.06.003 |
container_title |
Progress in Oceanography |
container_volume |
73 |
container_issue |
3-4 |
container_start_page |
341 |
op_container_end_page |
357 |
_version_ |
1772816283617722368 |