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| Titel |
Incorporation of the RAPID 26N and Florida Strait cable observations into the ECCO-GODAE state estimate |
| VerfasserIn |
J. Baehr, P. Heimbach |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250023630
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| Zusammenfassung |
| Daily timeseries of the meridional overturning circulation (MOC) estimated from the UK/US RAPID/MOCHA array at 26.5N in the Atlantic and the ECCO-GODAE state estimate show significant correlations for both the MOC and the Ekman transport with their respective counterpart (at the 95 percent confidence interval). However, the time-mean value of the MOC in ECCO-GODAE is several Sverdrups weaker than the RAPID/MOCHA estimate, while the Ekman transport is similar. Here, we test whether the additional incorporation of the temperature/salinity observations from the RAPID/MOCHA mooring array, as well as the cable estimates of volume transport in the Florida Current into ECCO-GODAE change ECCO-GODAE’s representation of the MOC in the Atlantic. Initially, we use experimental one year integrations, where the incorporation of the data results in an increased MOC of about 1 Sv for the northward branch of the MOC above 1000 m, and an increased MOC of about 1 Sv for the southward branch of the MOC between about 2000 m and 3000 m, at 26N and adjacent latitudes. The meridional heat transport increases by about 0.05 PW between 26N and about 40N. Subsequently, we investigate how both the RAPID/MOCHA and Florida Current observations affect the full 15 year ECCO-GODAE state estimate. |
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