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Titel |
Export Rates of North Atlantic Deep Water |
VerfasserIn |
R. Steinfeldt, M. Rhein |
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 |
250025862
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Zusammenfassung |
The concept from Bolin and Rhode (1973) of transit time distributions (TTDs)newline for
reservoirs is applied to North Atlantic Deep Water (NADW) in the subpolar North Atlantic.
The reservoirs are the different density classes of NADW, i.e. Upper Labrador Sea Water
(ULSW), Labrador Sea Water (LSW), Gibbs Fracture Zone Water(GFZW) and Denmark
Strait Overflow Water (DSOW). The TTDs for these reservoirs are computed as volume
integral of pointwise TTDs, which are inferred from CFC data collected between 1997 and
2005. It will be discussed, in how far these TTDs and their temporal derivatives
can be used to infer ventilation and export rates for NADW. These results will be
compared with direct observational data, e.g. the export of NADW from the subpolar
North Atlantic in the deep western boundary current as reported in Schott et al.
(2006).
Bolin, B., and H. Rohde, A note on the concepts of age distribution and transit time in
natural reservoirs, Tellus XXV, 1, 1973.
Schott, F. A., J. Fischer, M. Dengler, and R. Zantopp,Variability of the Deep
Western Boundary Current east of the Grand Banks, Geophys. Res. Lett., 33, L21S07,
doi:10.1029/2006GL026563, 2006. |
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