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| Titel |
The effect of tides on dense water formation in Arctic shelf seas |
| VerfasserIn |
C. F. Postlethwaite, M. A. Morales Maqueda, V. Fouest, G. R. Tattersall, J. Holt, A. J. Willmott |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1812-0784
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| Digitales Dokument |
URL |
| Erschienen |
In: Ocean Science ; 7, no. 2 ; Nr. 7, no. 2 (2011-03-24), S.203-217 |
| Datensatznummer |
250004535
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| Publikation (Nr.) |
 copernicus.org/os-7-203-2011.pdf |
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| Zusammenfassung |
| Ocean tides are not explicitly included in many ocean general circulation
models, which will therefore omit any interactions between tides and the
cryosphere. We present model simulations of the wind and buoyancy driven
circulation and tides of the Barents and Kara Seas, using a 25 km × 25 km
3-D ocean circulation model coupled to a dynamic and thermodynamic sea ice
model. The modeled tidal amplitudes are compared with tide gauge data and
sea ice extent is compared with satellite data. Including tides in the model
is found to have little impact on overall sea ice extent but is found to
delay freeze up and hasten the onset of melting in tidally active coastal
regions. The impact that including tides in the model has on the salt budget
is investigated and found to be regionally dependent. The vertically
integrated salt budget is dominated by lateral advection. This increases
significantly when tides are included in the model in the Pechora Sea and
around Svalbard where tides are strong. Tides increase the salt flux from
sea ice by 50% in the Pechora and White Seas but have little impact
elsewhere. This study suggests that the interaction between ocean tides and
sea ice should not be neglected when modeling the Arctic. |
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