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  • 1
    Online Resource
    Online Resource
    Dynamics of medium-intensity dense water plumes in the Arkona Basin, Western Baltic Sea
    Springer Science and Business Media LLC ; 2005
    In:  Ocean Dynamics Vol. 55, No. 5-6 ( 2005-12), p. 391-402
    Details
    In: Ocean Dynamics, Springer Science and Business Media LLC, Vol. 55, No. 5-6 ( 2005-12), p. 391-402
    Type of Medium: Online Resource
    ISSN: 1616-7341 , 1616-7228
    URL: Article
    DOI: 10.1007/s10236-005-0025-2
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2005
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    SSG: 14
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  • 2
    Online Resource
    Online Resource
    Direct observations of a medium-intensity inflow into the Baltic Sea
    Elsevier BV ; 2006
    In:  Continental Shelf Research Vol. 26, No. 19 ( 2006-12), p. 2393-2414
    Details
    In: Continental Shelf Research, Elsevier BV, Vol. 26, No. 19 ( 2006-12), p. 2393-2414
    Type of Medium: Online Resource
    ISSN: 0278-4343
    URL: Article
    DOI: 10.1016/j.csr.2006.07.004
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2006
    detail.hit.zdb_id: 2025704-1
    detail.hit.zdb_id: 780256-0
    SSG: 13
    SSG: 14
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  • 3
    Online Resource
    Online Resource
    Evidence for the Influence of Atlantic–Ionian Stream Fluctuations on the Tidally Induced Internal Dynamics in the Strait of Messina
    American Meteorological Society ; 1999
    In:  Journal of Physical Oceanography Vol. 29, No. 5 ( 1999-05), p. 1071-1080
    Details
    In: Journal of Physical Oceanography, American Meteorological Society, Vol. 29, No. 5 ( 1999-05), p. 1071-1080
    Type of Medium: Online Resource
    ISSN: 0022-3670 , 1520-0485
    URL: Article
    DOI: 10.1175/1520-0485(1999)029〈1071:EFTIOA〉2.0.CO;2
    Language: English
    Publisher: American Meteorological Society
    Publication Date: 1999
    detail.hit.zdb_id: 2042184-9
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  • 4
    Online Resource
    Online Resource
    A view of the Canary Basin thermocline circulation in winter
    American Geophysical Union (AGU) ; 1992
    In:  Journal of Geophysical Research: Oceans Vol. 97, No. C8 ( 1992-08-15), p. 12495-12510
    Details
    In: Journal of Geophysical Research: Oceans, American Geophysical Union (AGU), Vol. 97, No. C8 ( 1992-08-15), p. 12495-12510
    Abstract: During January and February 1989 the recirculation of the subtropical gyre in the eastern North Atlantic was surveyed with a three‐ship experiment. The analysis of hydrographic measurements and velocity data from a shipboard acoustic Doppler current profiler reveals the synoptic‐scale circulation patterns and water mass distributions in the Canary Basin. The geostrophic transport stream function estimated with a horizontally varying reference level of no motion highlights the major currents in three layers representing the vertical structure of the horizontal circulation. The classical circulation scheme is shown by the stream function in the upper 200 m: the Azores, Canary, and North Equatorial currents. Unlike the deep‐penetrating Azores Current, the Canary Current and the North Equatorial Current are restricted to the upper 200 m. Both carry North Atlantic Central Water along the water mass boundary with South Atlantic Central Water. South Atlantic Central Water flows through the passage between the Cape Verde archipelago and Africa via narrow currents into the area north of 14.5°N. At the southern edge of the subtropical gyre we identify an eastward flow of Antarctic Intermediate Water between 700 and 1200 m.
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/92JC01095
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1992
    detail.hit.zdb_id: 2033040-6
    detail.hit.zdb_id: 3094104-0
    detail.hit.zdb_id: 2130824-X
    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
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    detail.hit.zdb_id: 3094268-8
    detail.hit.zdb_id: 710256-2
    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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  • 5
    Online Resource
    Online Resource
    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
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  • 6
    Online Resource
    Online Resource
    Gravity Current Dynamics and Entrainment—A Process Study Based on Observations in the Arkona Basin
    American Meteorological Society ; 2007
    In:  Journal of Physical Oceanography Vol. 37, No. 8 ( 2007-08-01), p. 2094-2113
    Details
    In: Journal of Physical Oceanography, American Meteorological Society, Vol. 37, No. 8 ( 2007-08-01), p. 2094-2113
    Abstract: A 19-h time series of dissipation, stratification, and horizontal velocities has been obtained for a dense gravity current flowing into the Arkona Basin in the western Baltic Sea. The observations are compared with one-dimensional, quasi-steady theory, in which the gravity component in the flow direction is balanced by bottom friction, while that in the cross-flow direction is balanced by the Coriolis force. The observations deviate from the theory in that the bottom shear stress is more than 2 times as large as that required to balance the gravity. Several reasons for this discrepancy are discussed. A 1D turbulence model is also compared with the observations. Profiles of velocity, stratification, and dissipation rates generally show similar variations with depth as the observations, although the observed dissipation rates are somewhat larger than the modeled and the modeled transverse velocities are much larger than the observed. Subsequently, the model is used to investigate the variation of the entrainment parameter for a large range of Ekman and Froude numbers. Within the modeled parameter space, the entrainment parameter can be collapsed onto a curve that is an increasing function of both the Froude and the Ekman numbers. There is one puzzling result of the observations that differs from the model results and earlier observations: the observed entrainment rate increases dramatically during the observation period, where the Froude number decreases slightly. Some reasons for this increase are discussed.
    Type of Medium: Online Resource
    ISSN: 1520-0485 , 0022-3670
    URL: Article
    DOI: 10.1175/JPO3110.1
    Language: English
    Publisher: American Meteorological Society
    Publication Date: 2007
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    detail.hit.zdb_id: 184162-2
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  • 7
    Online Resource
    Online Resource
    High-resolution observations in the western Mediterranean Sea: the REP14-MED experiment
    Copernicus GmbH ; 2018
    In:  Ocean Science Vol. 14, No. 2 ( 2018-04-26), p. 321-335
    Details
    In: Ocean Science, Copernicus GmbH, Vol. 14, No. 2 ( 2018-04-26), p. 321-335
    Abstract: Abstract. The observational part of the REP14-MED experiment was conducted in June 2014 in the Sardo-Balearic Basin west of Sardinia (western Mediterranean Sea). Two research vessels collected high-resolution oceanographic data by means of hydrographic casts, towed systems, and underway measurements. In addition, a vast amount of data was provided by a fleet of 11 ocean gliders, time series were available from moored instruments, and information on Lagrangian flow patterns was obtained from surface drifters and one profiling float. The spatial resolution of the observations encompasses a spectrum over 4 orders of magnitude from 𝒪(101 m) to 𝒪(105 m), and the time series from the moored instruments cover a spectral range of 5 orders from 𝒪(101 s) to 𝒪(106 s). The objective of this article is to provide an overview of the huge data set which has been utilised by various studies, focusing on (i) water masses and circulation, (ii) operational forecasting, (iii) data assimilation, (iv) variability of the ocean, and (v) new payloads for gliders.
    Type of Medium: Online Resource
    ISSN: 1812-0792
    URL: Article
    DOI: 10.5194/os-14-321-2018
    Language: English
    Publisher: Copernicus GmbH
    Publication Date: 2018
    detail.hit.zdb_id: 2183769-7
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