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  • 1
    Online Resource
    Online Resource
    The Azores Countercurrent
    American Meteorological Society ; 1993
    In:  Journal of Physical Oceanography Vol. 23, No. 8 ( 1993-08), p. 1638-1646
    Details
    In: Journal of Physical Oceanography, American Meteorological Society, Vol. 23, No. 8 ( 1993-08), p. 1638-1646
    Type of Medium: Online Resource
    ISSN: 0022-3670 , 1520-0485
    URL: Article
    DOI: 10.1175/1520-0485(1993)023〈1638:TAC〉2.0.CO;2
    Language: English
    Publisher: American Meteorological Society
    Publication Date: 1993
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  • 2
    Online Resource
    Online Resource
    Seasonal changes in the tropical Atlantic circulation: Observation and simulation of the Guinea Dome
    American Geophysical Union (AGU) ; 1992
    In:  Journal of Geophysical Research: Oceans Vol. 97, No. C1 ( 1992-01-15), p. 703-715
    Details
    In: Journal of Geophysical Research: Oceans, American Geophysical Union (AGU), Vol. 97, No. C1 ( 1992-01-15), p. 703-715
    Abstract: The Guinea Dome is a permanent, quasi‐stationary feature on the eastern side of the thermal ridge extending zonally across the tropical North Atlantic. The dome is a part of the large‐scale near‐surface flow fields associated with the North Equatorial Current, the North Equatorial Countercurrent and the North Equatorial Undercurrent. In the present study, historical and recently obtained hydrographic data are combined to investigate the thermohaline structure and geostrophic flow field in the vicinity of the dome. It is shown that the Guinea Dome exists throughout the year both in subthermocline and thermocline layers, that it has a corresponding cyclonic geostrophic flow, and that seasonal changes occur with respect to its vertical structure, horizontal extent, and position. The observational results are then compared with simulations from a general circulation model of the tropical Atlantic. A seven‐year simulation forced by observed monthly winds is run to compute a monthly climatology. The model adequately simulates the Guinea Dome with respect to its structure, flow field, and seasonal variability.
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/91JC02501
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1992
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    detail.hit.zdb_id: 2016813-5
    detail.hit.zdb_id: 2016810-X
    detail.hit.zdb_id: 2403298-0
    detail.hit.zdb_id: 2016800-7
    detail.hit.zdb_id: 161666-3
    detail.hit.zdb_id: 161667-5
    detail.hit.zdb_id: 2969341-X
    detail.hit.zdb_id: 161665-1
    detail.hit.zdb_id: 3094268-8
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    detail.hit.zdb_id: 2016804-4
    detail.hit.zdb_id: 3094181-7
    detail.hit.zdb_id: 3094219-6
    detail.hit.zdb_id: 3094167-2
    detail.hit.zdb_id: 2220777-6
    detail.hit.zdb_id: 3094197-0
    SSG: 16,13
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  • 3
    Online Resource
    Online Resource
    The Asymmetry of Western Boundary Currents in the Upper Atlantic Ocean
    American Meteorological Society ; 1994
    In:  Journal of Physical Oceanography Vol. 24, No. 5 ( 1994-05), p. 928-948
    Details
    In: Journal of Physical Oceanography, American Meteorological Society, Vol. 24, No. 5 ( 1994-05), p. 928-948
    Type of Medium: Online Resource
    ISSN: 0022-3670 , 1520-0485
    URL: Article
    DOI: 10.1175/1520-0485(1994)024〈0928:TAOWBC〉2.0.CO;2
    Language: English
    Publisher: American Meteorological Society
    Publication Date: 1994
    detail.hit.zdb_id: 2042184-9
    detail.hit.zdb_id: 184162-2
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  • 4
    Online Resource
    Online Resource
    The Spreading of Lower Circumpolar Deep Water in the Atlantic Ocean
    American Meteorological Society ; 1995
    In:  Journal of Physical Oceanography Vol. 25, No. 12 ( 1995-12), p. 3051-3063
    Details
    In: Journal of Physical Oceanography, American Meteorological Society, Vol. 25, No. 12 ( 1995-12), p. 3051-3063
    Type of Medium: Online Resource
    ISSN: 0022-3670 , 1520-0485
    URL: Article
    DOI: 10.1175/1520-0485(1995)025〈3051:TSOLCD〉2.0.CO;2
    Language: English
    Publisher: American Meteorological Society
    Publication Date: 1995
    detail.hit.zdb_id: 2042184-9
    detail.hit.zdb_id: 184162-2
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  • 5
    Online Resource
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    In-Flight Evaluation of CASSY: A System Providing Intelligent On-Board Pilot Assistance
    American Institute of Aeronautics and Astronautics (AIAA) ; 1995
    In:  Air Traffic Control Quarterly Vol. 3, No. 3 ( 1995-07), p. 183-204
    Details
    In: Air Traffic Control Quarterly, American Institute of Aeronautics and Astronautics (AIAA), Vol. 3, No. 3 ( 1995-07), p. 183-204
    Type of Medium: Online Resource
    ISSN: 1064-3818 , 2472-5757
    URL: Article
    DOI: 10.2514/atcq.3.3.183
    Language: English
    Publisher: American Institute of Aeronautics and Astronautics (AIAA)
    Publication Date: 1995
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  • 6
    Online Resource
    Online Resource
    Indirect determination of the heat budget of tidal flats
    Elsevier BV ; 2007
    In:  Continental Shelf Research Vol. 27, No. 12 ( 2007-7), p. 1656-1676
    Details
    In: Continental Shelf Research, Elsevier BV, Vol. 27, No. 12 ( 2007-7), p. 1656-1676
    Type of Medium: Online Resource
    ISSN: 0278-4343
    URL: Article
    DOI: 10.1016/j.csr.2007.01.029
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2007
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    detail.hit.zdb_id: 780256-0
    SSG: 13
    SSG: 14
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  • 7
    Online Resource
    Online Resource
    Mediterranean physical oceanography and biogeochemical cycles: General circulation and climate variability
    Elsevier BV ; 2005
    In:  Progress in Oceanography Vol. 66, No. 2-4 ( 2005-8), p. 87-88
    Details
    In: Progress in Oceanography, Elsevier BV, Vol. 66, No. 2-4 ( 2005-8), p. 87-88
    Type of Medium: Online Resource
    ISSN: 0079-6611
    URL: Article
    DOI: 10.1016/j.pocean.2005.05.001
    RVK:
    RB 10402
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2005
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    SSG: 21,3
    SSG: 14
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  • 8
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    Hydrography and circulation west of Sardinia in June 2014
    Copernicus GmbH ; 2017
    In:  Ocean Science Vol. 13, No. 6 ( 2017-11-13), p. 889-904
    Details
    In: Ocean Science, Copernicus GmbH, Vol. 13, No. 6 ( 2017-11-13), p. 889-904
    Abstract: Abstract. In the frame of the REP14-MED sea trial in June 2014, the hydrography and circulation west of Sardinia, observed by means of gliders, shipborne CTD (conductivity, temperature, depth) instruments, towed devices, and vessel-mounted ADCPs (acoustic doppler current profilers), are presented and compared with previous knowledge. So far, the circulation is not well-known in this area, and the hydrography is subject to long-term changes. Potential temperature, salinity, and potential density ranges as well as core values of the observed water masses were determined. Modified Atlantic Water (MAW), with potential density anomalies below 28.72 kg m−3, showed a salinity minimum of 37.93 at 50 dbar. Levantine Intermediate Water (LIW), with a salinity maximum of about 38.70 at 400 dbar, was observed within a range of 28.72〈σΘ/(kg m−3) 〈 29.10. MAW and LIW showed slightly higher salinities than previous investigations. During the trial, LIW covered the whole area from the Sardinian shelf to 7°15′ E. Only north of 40° N was it tied to the continental slope. Within the MAW, a cold and saline anticyclonic eddy was observed in the southern trial area. The strongest variability in temperature and salinity appeared around this eddy, and in the southwestern part of the domain, where unusually low saline surface water entered the area towards the end of the experiment. An anticyclonic eddy of Winter Intermediate Water was recorded moving northward at 0.014 m s−1. Geostrophic currents and water mass transports calculated across zonal and meridional transects showed a good agreement with vessel-mounted ADCP measurements. Within the MAW, northward currents were observed over the shelf and offshore, while a southward transport of about 1.5 Sv occurred over the slope. A net northward transport of 0.38 Sv across the southern transect decreased to zero in the north. Within the LIW, northward transports of 0.6 Sv across the southern transects were mainly observed offshore, and decreased to 0.3 Sv in the north where they were primarily located over the slope. This presentation of the REP14-MED observations helps to further understand the long-term evolution of hydrography and circulation in the Western Mediterranean, where considerable changes occurred after the Eastern Mediterranean Transient and the Western Mediterranean Transition.
    Type of Medium: Online Resource
    ISSN: 1812-0792
    URL: Article
    DOI: 10.5194/os-13-889-2017
    Language: English
    Publisher: Copernicus GmbH
    Publication Date: 2017
    detail.hit.zdb_id: 2183769-7
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  • 9
    Online Resource
    Online Resource
    Forecast skill score assessment of a relocatable ocean prediction system, using a simplified objective analysis method
    Copernicus GmbH ; 2017
    In:  Ocean Science Vol. 13, No. 6 ( 2017-11-20), p. 925-945
    Details
    In: Ocean Science, Copernicus GmbH, Vol. 13, No. 6 ( 2017-11-20), p. 925-945
    Abstract: Abstract. A relocatable ocean prediction system (ROPS) was employed to an observational data set which was collected in June 2014 in the waters to the west of Sardinia (western Mediterranean) in the framework of the REP14-MED experiment. The observational data, comprising more than 6000 temperature and salinity profiles from a fleet of underwater gliders and shipborne probes, were assimilated in the Regional Ocean Modeling System (ROMS), which is the heart of ROPS, and verified against independent observations from ScanFish tows by means of the forecast skill score as defined by Murphy(1993). A simplified objective analysis (OA) method was utilised for assimilation, taking account of only those profiles which were located within a predetermined time window W. As a result of a sensitivity study, the highest skill score was obtained for a correlation length scale C = 12.5 km, W = 24 h, and r = 1, where r is the ratio between the error of the observations and the background error, both for temperature and salinity. Additional ROPS runs showed that (i) the skill score of assimilation runs was mostly higher than the score of a control run without assimilation, (i) the skill score increased with increasing forecast range, and (iii) the skill score for temperature was higher than the score for salinity in the majority of cases. Further on, it is demonstrated that the vast number of observations can be managed by the applied OA method without data reduction, enabling timely operational forecasts even on a commercially available personal computer or a laptop.
    Type of Medium: Online Resource
    ISSN: 1812-0792
    URL: Article
    DOI: 10.5194/os-13-925-2017
    Language: English
    Publisher: Copernicus GmbH
    Publication Date: 2017
    detail.hit.zdb_id: 2183769-7
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  • 10
    Online Resource
    Online Resource
    Data-driven simulations of synoptic circulation and transports in the Tunisia-Sardinia-Sicily region
    American Geophysical Union (AGU) ; 2003
    In:  Journal of Geophysical Research Vol. 108, No. C9 ( 2003)
    Details
    In: Journal of Geophysical Research, American Geophysical Union (AGU), Vol. 108, No. C9 ( 2003)
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/2002JC001348
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 2003
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    detail.hit.zdb_id: 3094167-2
    detail.hit.zdb_id: 2220777-6
    detail.hit.zdb_id: 3094197-0
    SSG: 16,13
    Location Call Number Limitation Availability
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