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    Wyświetlanie 1-5 z 5
    Tytuł:
    Variability of currents over the southern slope of the Gulf of Finland
    Autorzy:
    Suhhova, I.
    Pavelson, J.
    Lagemaa, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/48946.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    stratification
    upwelling
    downwelling
    Finland Gulf
    coastal sea water
    seasonal thermocline
    current velocity
    Źródło:
    Oceanologia; 2015, 57, 2
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Large halocline variations in the Northern Baltic Proper and associated meso- and basin-scale processes
    Autorzy:
    Elken, J.
    Malkki, P.
    Alenius, P.
    Stipa, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/47628.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    Sopot
    current
    splitting area
    Finland Gulf
    saline water
    conference
    Baltic Sea
    halocline
    Opis:
    The Northern Baltic Proper is a splitting area of the Baltic Sea saline water route towards the two terminal basins – the Gulf of Finland and the Western Gotland Basin. Large halocline variations (vertical isopycnal displacements of more than 20 m, intra-halocline current speeds above 20 cm s−1) appear during and following SW wind events, which rapidly increase the water storage in the Gulf of Finland and reverse the standard estuarine transport, causing an outflow in the lower layers. In the channel of variable topography, basin-scale barotropic flow pulses are converted into baroclinic mesoscale motions such as jet currents, sub-surface eddies and lowfrequency waves. The associated dynamics is analysed by the results from a special mesoscale experiment, routine observations and numerical modelling.
    Źródło:
    Oceanologia; 2006, 48, S
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of landfast ice on the hydrography and circulation of the Baltic Sea coastal zone
    Autorzy:
    Merkouriadi, I.
    Lepparanta, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/49047.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    Finland Gulf
    hydrography
    landfast ice
    circulation
    Baltic Sea
    coastal zone
    water temperature
    salinity
    current
    Źródło:
    Oceanologia; 2013, 55, 1
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Periodic variability of currents induced by topographically trapped waves in the coastal zone in the Gulf of Finland
    Autorzy:
    Talpsepp, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/48759.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    trapped wave
    Sopot
    current
    water exchange
    Finland Gulf
    topographical wave
    Pakri Bay
    conference
    Baltic Sea
    Estonia
    Opis:
    The aim of this paper is to examine the water exchange regime between the bays of northern Estonia (Pakri Bay, Ihasalu Bay and Muuga Bay) and the open part of the Gulf of Finland. To this end, the current measurements and CTD-castings performed at the border of the bays and the open part of the Gulf of Finland in summer 1994, 1995–96 and 1997 are analysed. All the current measurements displayed one feature in common: the existence of periodic variability with a current amplitude of between 5 and 25 cm s−1 and a variability period of 3–4 days (68 hours in Pakri Bay, 72 hours in Muuga Bay and 78 hours in Ihasalu Bay). The amplitudes of this variability differed during different time periods of the experiment and in different parts of the southern Gulf of Finland. The hypothesis was propounded that this variability is the result of bottom-trapped waves, as had been found in many other regions of the Baltic Sea (Aitsam & Talpsepp 1982, Talpsepp 1983). To interpret the results of the measurements, a model of bottom-trapped waves for this region was used. This was the short-wave version of Huthnance’s (1978) numerical model of coastal-trapped waves, according to which the wave parameters for the experimental regions were calculated. Comparison of the model and the measurements implies that coastal-trapped waves do exist off the southern coast of the Gulf of Finland.
    Źródło:
    Oceanologia; 2006, 48, S
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Waves, currents and sea level variations along the Letipea - Sillamäe coastal section of the Southern Gulf of Finland
    Autorzy:
    Suursaar, U.
    Powiązania:
    https://bibliotekanauki.pl/articles/48913.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    wave
    variation
    hydrodynamic condition
    measurement
    Doppler current prolifer
    calibration
    semi-empirical hindcast
    water parameter
    upwelling
    coastal jet
    climate change
    Baltic Sea
    Letipea-Sillamae coastal section
    Finland Gulf
    Opis:
    Variations in the hydrodynamic conditions were studied on the basis of 336 days of measurements with a Doppler current profiler. With wave data as a calibration reference, a semi-empirical hindcast of wave parameters is presented in the fetch- limited near-shore area for the period 1966–2008. A resultant 4–6 cm s−1 westward current dominated along the coast. Occasional fast sub-surface westward currents under modest wind forcing, as well as asymmetrical vertical profiles for westward and eastward currents indicated the influence of upwelling-related baroclinic coastal jets. The average frequency of upwelling was estimated at 17%; some of the events were identified in near-homothermic winter conditions on the basis of salinity and multi-layer flow records. While the mean sea level trend at Narva-Jõesuu roughly approximated the global estimates for 1899–2009, the annual maximum sea level increase was 5–8 mm yr−1. Both mean and maximum wave heights declined as a result of decreasing winds from the north.
    Źródło:
    Oceanologia; 2010, 52, 3; 391-416
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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