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  • 1
    Online-Ressource
    Online-Ressource
    Geostrophic transport of the South Equatorial Current in the Atlantic
    Journal of Marine Research/Yale ; 1991
    In:  Journal of Marine Research Vol. 49, No. 2 ( 1991-05-01), p. 281-294
    Details
    In: Journal of Marine Research, Journal of Marine Research/Yale, Vol. 49, No. 2 ( 1991-05-01), p. 281-294
    Materialart: Online-Ressource
    ISSN: 0022-2402 , 1543-9542
    URL: Article
    DOI: 10.1357/002224091784995864
    Sprache: Englisch
    Verlag: Journal of Marine Research/Yale
    Publikationsdatum: 1991
    ZDB Id: 410655-6
    ZDB Id: 2066603-2
    SSG: 12
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  • 2
    Online-Ressource
    Online-Ressource
    Meridional temperature fluxes in the subtropical eastern North Atlantic
    Elsevier BV ; 1986
    In:  Deep Sea Research Part A. Oceanographic Research Papers Vol. 33, No. 2 ( 1986-2), p. 209-223
    Details
    In: Deep Sea Research Part A. Oceanographic Research Papers, Elsevier BV, Vol. 33, No. 2 ( 1986-2), p. 209-223
    Materialart: Online-Ressource
    ISSN: 0198-0149
    URL: Article
    DOI: 10.1016/0198-0149(86)90119-6
    Sprache: Englisch
    Verlag: Elsevier BV
    Publikationsdatum: 1986
    ZDB Id: 2280519-9
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  • 3
    Online-Ressource
    Online-Ressource
    Variability in the Deep Western Boundary Current in the equatorial Atlantic at 44°W
    American Geophysical Union (AGU) ; 2001
    In:  Geophysical Research Letters Vol. 28, No. 8 ( 2001-04-15), p. 1623-1626
    Details
    In: Geophysical Research Letters, American Geophysical Union (AGU), Vol. 28, No. 8 ( 2001-04-15), p. 1623-1626
    Kurzfassung: The variability of the North Atlantic Deep Water (NADW) was studied by ten hydrographic repeat sections taken along 44°W off Brazil between September 1989 and March 1994. This data set allowed for the first time to describe the seasonal signal in the Deep Western Boundary Current at the equator from hydrographic data. Annual and semiannual layer thickness modulations were observed similar to such signals in transport time series, however with a time lag of 2 months. A comparison of the interannual variability of the Labrador Sea Water component of the NADW at 44°W at the equator with the formation region indicated a time lag of 13 to 17 years. The effective spreading velocities in the Labrador Sea Water are in the range 2 to 5 cms −1 for the tropical Atlantic Ocean.
    Materialart: Online-Ressource
    ISSN: 0094-8276 , 1944-8007
    URL: Article
    DOI: 10.1029/2000GL011777
    Sprache: Englisch
    Verlag: American Geophysical Union (AGU)
    Publikationsdatum: 2001
    ZDB Id: 2021599-X
    ZDB Id: 7403-2
    SSG: 16,13
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  • 4
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    Introduction to special section: World Ocean Circulation Experiment: South Atlantic Results
    American Geophysical Union (AGU) ; 1999
    In:  Journal of Geophysical Research: Oceans Vol. 104, No. C9 ( 1999-09-15), p. 20859-20861
    Details
    In: Journal of Geophysical Research: Oceans, American Geophysical Union (AGU), Vol. 104, No. C9 ( 1999-09-15), p. 20859-20861
    Materialart: Online-Ressource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/1999JC900186
    Sprache: Englisch
    Verlag: American Geophysical Union (AGU)
    Publikationsdatum: 1999
    ZDB Id: 2033040-6
    ZDB Id: 3094104-0
    ZDB Id: 2130824-X
    ZDB Id: 2016813-5
    ZDB Id: 2016810-X
    ZDB Id: 2403298-0
    ZDB Id: 2016800-7
    ZDB Id: 161666-3
    ZDB Id: 161667-5
    ZDB Id: 2969341-X
    ZDB Id: 161665-1
    ZDB Id: 3094268-8
    ZDB Id: 710256-2
    ZDB Id: 2016804-4
    ZDB Id: 3094181-7
    ZDB Id: 3094219-6
    ZDB Id: 3094167-2
    ZDB Id: 2220777-6
    ZDB Id: 3094197-0
    SSG: 16,13
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  • 5
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    Temporal evolution of the tracer signal in the Deep Western Boundary Current, tropical Atlantic
    American Geophysical Union (AGU) ; 1998
    In:  Journal of Geophysical Research: Oceans Vol. 103, No. C8 ( 1998-07-15), p. 15869-15883
    Details
    In: Journal of Geophysical Research: Oceans, American Geophysical Union (AGU), Vol. 103, No. C8 ( 1998-07-15), p. 15869-15883
    Kurzfassung: Four World Ocean Circulation Experiment (WOCE) repeat cruises (October 1990 to March 1994) in the tropical Atlantic off Brazil are used to study the spatial and temporal evolution of the chlorofluorocarbon (CFC) (components CFC‐11 and CFC‐12) and tritium signal in the upper North Atlantic Deep Water (NADW). Its shallowest part, located in the tropical Atlantic around 1600‐m depth, is the shallow upper North Atlantic Deep Water (SUNADW). It is characterized by a distinct tracer maximum, which is presumably received through winter time convection in the subpolar North Atlantic. Here we discuss the tracer fields and the temporal evolution of the tracer signal of the SUNADW in the tropical Atlantic along two meridional sections at 44° and 35°W and two zonal sections at 5° and 10°S off Brazil. The spatial and temporal development of the tracer field in the tropical Atlantic as well as the correlation with hydrographic parameters show that the temporal tracer change being due to the arrival of “younger” water is disturbed by other processes. In particular, the impact of variable mixing and spreading pathways on the observed tracer variability in the SUNADW is evident in the observations.
    Materialart: Online-Ressource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/98JC00143
    Sprache: Englisch
    Verlag: American Geophysical Union (AGU)
    Publikationsdatum: 1998
    ZDB Id: 2033040-6
    ZDB Id: 3094104-0
    ZDB Id: 2130824-X
    ZDB Id: 2016813-5
    ZDB Id: 2016810-X
    ZDB Id: 2403298-0
    ZDB Id: 2016800-7
    ZDB Id: 161666-3
    ZDB Id: 161667-5
    ZDB Id: 2969341-X
    ZDB Id: 161665-1
    ZDB Id: 3094268-8
    ZDB Id: 710256-2
    ZDB Id: 2016804-4
    ZDB Id: 3094181-7
    ZDB Id: 3094219-6
    ZDB Id: 3094167-2
    ZDB Id: 2220777-6
    ZDB Id: 3094197-0
    SSG: 16,13
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  • 6
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    Processing and analysis of large volumes of satellite‐derived thermal infrared data
    American Geophysical Union (AGU) ; 1987
    In:  Journal of Geophysical Research: Oceans Vol. 92, No. C12 ( 1987-11-15), p. 12993-13002
    Details
    In: Journal of Geophysical Research: Oceans, American Geophysical Union (AGU), Vol. 92, No. C12 ( 1987-11-15), p. 12993-13002
    Kurzfassung: Reducing the large volume of TIROS‐N series advanced very high resolution radiometer‐derived data to a practical size for application to regional physcial oceanographic studies is a formidable task. Such data exist on a global basis for January 1979 to the present at approximately 4‐km resolution (global area coverage data, ≈2 passes per day) and in selected areas at high resolution (local area coverage and high‐resolution picture transmission data, at ≈1‐km resolution) for the same period. An approach that has been successful for a number of studies off the east coast of the United States divided the processing into two procedures: preprocessing and data reduction. The preprocessing procedure can reduce the data volume per satellite pass by over 98% for full‐resolution data or by ≈84% for the lower‐resolution data while the number of passes remains unchanged. The output of the preprocessing procedure for the examples presented is a set of sea surface temperature (SST) fields of 512 × 1024 pixels covering a region of approximately 2000 × 4000 km. In the data reduction procedure the number of SST fields (beginning with one per satellite pass) is generally reduced to a number manageable from the analyst's perspective (of the order of one SST field per day). This is done in most of the applications presented by compositing the data into 1‐ or 2‐day groups. The phenomena readily addressed by such procedures are the mean position of the Gulf Stream, the envelope of Gulf Stream meandering, cold core Gulf Stream ring trajectories, statistics on diurnal warming, and the region and period of 18°C water formation. The flexibility of this approach to regional oceanographic problems will certainly extend the list of applications quickly.
    Materialart: Online-Ressource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/JC092iC12p12993
    Sprache: Englisch
    Verlag: American Geophysical Union (AGU)
    Publikationsdatum: 1987
    ZDB Id: 2033040-6
    ZDB Id: 3094104-0
    ZDB Id: 2130824-X
    ZDB Id: 2016813-5
    ZDB Id: 2016810-X
    ZDB Id: 2403298-0
    ZDB Id: 2016800-7
    ZDB Id: 161666-3
    ZDB Id: 161667-5
    ZDB Id: 2969341-X
    ZDB Id: 161665-1
    ZDB Id: 3094268-8
    ZDB Id: 710256-2
    ZDB Id: 2016804-4
    ZDB Id: 3094181-7
    ZDB Id: 3094219-6
    ZDB Id: 3094167-2
    ZDB Id: 2220777-6
    ZDB Id: 3094197-0
    SSG: 16,13
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
    Online-Ressource
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    Seasonal changes in the North Atlantic subtropical gyre
    American Geophysical Union (AGU) ; 1988
    In:  Journal of Geophysical Research: Oceans Vol. 93, No. C7 ( 1988-07-15), p. 8111-8118
    Details
    In: Journal of Geophysical Research: Oceans, American Geophysical Union (AGU), Vol. 93, No. C7 ( 1988-07-15), p. 8111-8118
    Kurzfassung: The eastern part of the North Atlantic subtropical gyre is found in the region between the Azores and the Cape Verde Islands. A study of the gyre structure in the area east of 35°W between 8°N and 41°N is presented. The geostrophic flow field determined from historical temperature‐salinity data sets by objective analysis indicates seasonal variations in shape but no significant changes in the magnitude of volume transports. The eastern part of the gyre has a larger east‐west and smaller north‐south extension in summer compared with the winter season. The center shifts by about 2° latitude to the south from winter to summer. Long‐term temperature time series (6.5 years) from a mooring near the Azores are consistent with these results, showing always a consistent temperature increase at the beginning of the year which is apparently due to the displacement of the northeastern part of the gyre. A comparison between the mean flow fields and fields obtained from individual zonal sections indicates large deviations north and south of the gyre but small deviations within the gyre.
    Materialart: Online-Ressource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/JC093iC07p08111
    Sprache: Englisch
    Verlag: American Geophysical Union (AGU)
    Publikationsdatum: 1988
    ZDB Id: 2033040-6
    ZDB Id: 3094104-0
    ZDB Id: 2130824-X
    ZDB Id: 2016813-5
    ZDB Id: 2016810-X
    ZDB Id: 2403298-0
    ZDB Id: 2016800-7
    ZDB Id: 161666-3
    ZDB Id: 161667-5
    ZDB Id: 2969341-X
    ZDB Id: 161665-1
    ZDB Id: 3094268-8
    ZDB Id: 710256-2
    ZDB Id: 2016804-4
    ZDB Id: 3094181-7
    ZDB Id: 3094219-6
    ZDB Id: 3094167-2
    ZDB Id: 2220777-6
    ZDB Id: 3094197-0
    SSG: 16,13
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 8
    Online-Ressource
    Online-Ressource
    Pacific Subtropical Cell variability in the SODA 2.0.2/3 assimilation
    American Geophysical Union (AGU) ; 2008
    In:  Geophysical Research Letters Vol. 35, No. 10 ( 2008-05)
    Details
    In: Geophysical Research Letters, American Geophysical Union (AGU), Vol. 35, No. 10 ( 2008-05)
    Kurzfassung: A new version of SODA, which covers the time period 1958–2005, is used to analyze decadal variability of the Pacific Subtropical Cell (STC) circulation. The analysis is based on transport time series across 9°S and 9°N. At the interannual time scale, STC convergence anomalies decrease during El Niños and increase during La Niñas through Sverdrup transport convergence changes. At decadal time scales, the assimilation shows a reduction of interior STC convergence of about 8 Sv from the 1960s to the 1990s and a subsequent rebound into the early 2000s by a similar amount, in agreement with the STC tendencies reported earlier from geostrophic section analysis, and associated with the occurrence and intensity of ENSO events among the decades analyzed. The results are compared with, and differ significantly from, those obtained by the German ECCO (GECCO) assimilation.
    Materialart: Online-Ressource
    ISSN: 0094-8276 , 1944-8007
    URL: Article
    DOI: 10.1029/2008GL033757
    Sprache: Englisch
    Verlag: American Geophysical Union (AGU)
    Publikationsdatum: 2008
    ZDB Id: 2021599-X
    ZDB Id: 7403-2
    SSG: 16,13
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  • 9
    Online-Ressource
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    Annual Rossby waves in the Arabian Sea from TOPEX/POSEIDON altimeter and in situ data
    Elsevier BV ; 2002
    In:  Deep Sea Research Part II: Topical Studies in Oceanography Vol. 49, No. 7-8 ( 2002-1), p. 1197-1210
    Details
    In: Deep Sea Research Part II: Topical Studies in Oceanography, Elsevier BV, Vol. 49, No. 7-8 ( 2002-1), p. 1197-1210
    Materialart: Online-Ressource
    ISSN: 0967-0645
    URL: Article
    DOI: 10.1016/S0967-0645(01)00166-7
    Sprache: Englisch
    Verlag: Elsevier BV
    Publikationsdatum: 2002
    ZDB Id: 1141627-0
    ZDB Id: 1500312-7
    SSG: 14
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  • 10
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    Winter and summer monsoon water mass, heat and freshwater transport changes in the Arabian Sea near 8°N
    Elsevier BV ; 2002
    In:  Deep Sea Research Part II: Topical Studies in Oceanography Vol. 49, No. 7-8 ( 2002-1), p. 1173-1195
    Details
    In: Deep Sea Research Part II: Topical Studies in Oceanography, Elsevier BV, Vol. 49, No. 7-8 ( 2002-1), p. 1173-1195
    Materialart: Online-Ressource
    ISSN: 0967-0645
    URL: Article
    DOI: 10.1016/S0967-0645(01)00169-2
    Sprache: Englisch
    Verlag: Elsevier BV
    Publikationsdatum: 2002
    ZDB Id: 1141627-0
    ZDB Id: 1500312-7
    SSG: 14
    Standort Signatur Einschränkungen Verfügbarkeit
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