Fresh Water Content Variability in the Arctic Ocean
Arctic Ocean model simulations have revealed that the Arctic Ocean has a basin wide oscillation with cyclonic and anticyclonic circulation anomalies (Arctic Ocean Oscillation; AOO) which has a prominent decadal variability. This study explores how the simulated AOO affects the Arctic Ocean stratific...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20040047277 2023-05-15T14:29:08+02:00 Fresh Water Content Variability in the Arctic Ocean Hakkinen, Sirpa Proshutinsky, Andrey Unclassified, Unlimited, Publicly available [2003] application/pdf http://hdl.handle.net/2060/20040047277 unknown Document ID: 20040047277 http://hdl.handle.net/2060/20040047277 No Copyright CASI Oceanography 2003 ftnasantrs 2018-06-09T23:02:29Z Arctic Ocean model simulations have revealed that the Arctic Ocean has a basin wide oscillation with cyclonic and anticyclonic circulation anomalies (Arctic Ocean Oscillation; AOO) which has a prominent decadal variability. This study explores how the simulated AOO affects the Arctic Ocean stratification and its relationship to the sea ice cover variations. The simulation uses the Princeton Ocean Model coupled to sea ice. The surface forcing is based on NCEP-NCAR Reanalysis and its climatology, of which the latter is used to force the model spin-up phase. Our focus is to investigate the competition between ocean dynamics and ice formation/melt on the Arctic basin-wide fresh water balance. We find that changes in the Atlantic water inflow can explain almost all of the simulated fresh water anomalies in the main Arctic basin. The Atlantic water inflow anomalies are an essential part of AOO, which is the wind driven barotropic response to the Arctic Oscillation (AO). The baroclinic response to AO, such as Ekman pumping in the Beaufort Gyre, and ice meldfreeze anomalies in response to AO are less significant considering the whole Arctic fresh water balance. Other/Unknown Material Arctic Basin Arctic Arctic Ocean Sea ice NASA Technical Reports Server (NTRS) Arctic Arctic Ocean |
institution |
Open Polar |
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NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Oceanography |
spellingShingle |
Oceanography Hakkinen, Sirpa Proshutinsky, Andrey Fresh Water Content Variability in the Arctic Ocean |
topic_facet |
Oceanography |
description |
Arctic Ocean model simulations have revealed that the Arctic Ocean has a basin wide oscillation with cyclonic and anticyclonic circulation anomalies (Arctic Ocean Oscillation; AOO) which has a prominent decadal variability. This study explores how the simulated AOO affects the Arctic Ocean stratification and its relationship to the sea ice cover variations. The simulation uses the Princeton Ocean Model coupled to sea ice. The surface forcing is based on NCEP-NCAR Reanalysis and its climatology, of which the latter is used to force the model spin-up phase. Our focus is to investigate the competition between ocean dynamics and ice formation/melt on the Arctic basin-wide fresh water balance. We find that changes in the Atlantic water inflow can explain almost all of the simulated fresh water anomalies in the main Arctic basin. The Atlantic water inflow anomalies are an essential part of AOO, which is the wind driven barotropic response to the Arctic Oscillation (AO). The baroclinic response to AO, such as Ekman pumping in the Beaufort Gyre, and ice meldfreeze anomalies in response to AO are less significant considering the whole Arctic fresh water balance. |
author |
Hakkinen, Sirpa Proshutinsky, Andrey |
author_facet |
Hakkinen, Sirpa Proshutinsky, Andrey |
author_sort |
Hakkinen, Sirpa |
title |
Fresh Water Content Variability in the Arctic Ocean |
title_short |
Fresh Water Content Variability in the Arctic Ocean |
title_full |
Fresh Water Content Variability in the Arctic Ocean |
title_fullStr |
Fresh Water Content Variability in the Arctic Ocean |
title_full_unstemmed |
Fresh Water Content Variability in the Arctic Ocean |
title_sort |
fresh water content variability in the arctic ocean |
publishDate |
2003 |
url |
http://hdl.handle.net/2060/20040047277 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Basin Arctic Arctic Ocean Sea ice |
genre_facet |
Arctic Basin Arctic Arctic Ocean Sea ice |
op_source |
CASI |
op_relation |
Document ID: 20040047277 http://hdl.handle.net/2060/20040047277 |
op_rights |
No Copyright |
_version_ |
1766303219821051904 |