The use of high-resolution bathymetry for circulation modelling in the Gulf of Finland

2010 ◽  
Vol 16 (3) ◽  
pp. 187 ◽  
Author(s):  
O Andrejev ◽  
A Sokolov ◽  
T Soomere ◽  
R Värv ◽  
B Viikmäe
Keyword(s):  
High Resolution ◽  
Gulf Of Finland ◽  
High Resolution Bathymetry ◽  
The Gulf Of Finland

High-resolution dynamics of the spring bloom in the Gulf of Finland of the Baltic Sea

2014 ◽  
Vol 129 ◽  
pp. 135-149 ◽  
Author(s):  
Inga Lips ◽  
Nelli Rünk ◽  
Villu Kikas ◽  
Aet Meerits ◽  
Urmas Lips
Keyword(s):  
High Resolution ◽  
Baltic Sea ◽  
Spring Bloom ◽  
Gulf Of Finland ◽  
The Baltic Sea ◽  
The Baltic ◽  
The Gulf Of Finland

scholarly journals Multi-sensor in situ observations to resolve the sub-mesoscale features in the stratified Gulf of Finland, Baltic Sea

Ocean Science ◽  
2016 ◽  
Vol 12 (3) ◽  
pp. 715-732 ◽  
Author(s):  
Urmas Lips ◽  
Villu Kikas ◽  
Taavi Liblik ◽  
Inga Lips
Keyword(s):  
High Resolution ◽  
Coastal Upwelling ◽  
Spatiotemporal Variability ◽  
Gulf Of Finland ◽  
High Resolution Data ◽  
Temperature Variance ◽  
Seasonal Thermocline ◽  
Mesoscale Processes ◽  
The Gulf Of Finland

Abstract. High-resolution numerical modeling, remote sensing, and in situ data have revealed significant role of sub-mesoscale features in shaping the distribution pattern of tracers in the ocean's upper layer. However, in situ measurements are difficult to conduct with the required resolution and coverage in time and space to resolve the sub-mesoscale, especially in such relatively shallow basins as the Gulf of Finland, where the typical baroclinic Rossby radius is 2–5 km. To map the multi-scale spatiotemporal variability in the gulf, we initiated continuous measurements with autonomous devices, including a moored profiler and Ferrybox system, which were complemented by dedicated research-vessel-based surveys. The analysis of collected high-resolution data in the summers of 2009–2012 revealed pronounced variability at the sub-mesoscale in the presence of mesoscale upwelling/downwelling, fronts, and eddies. The horizontal wavenumber spectra of temperature variance in the surface layer had slopes close to −2 between the lateral scales from 10 to 0.5 km. Similar tendency towards the −2 slopes of horizontal wavenumber spectra of temperature variance was found in the seasonal thermocline between the lateral scales from 10 to 1 km. It suggests that the ageostrophic sub-mesoscale processes could contribute considerably to the energy cascade in such a stratified sea basin. We showed that the intrusions of water with different salinity, which indicate the occurrence of a layered flow structure, could appear in the process of upwelling/downwelling development and relaxation in response to variable wind forcing. We suggest that the sub-mesoscale processes play a major role in feeding surface blooms in the conditions of coupled coastal upwelling and downwelling events in the Gulf of Finland.

scholarly journals Multi-sensor in situ observations to resolve the sub-mesoscale in the stratified Gulf of Finland, Baltic Sea

2016 ◽  
Author(s):  
U. Lips ◽  
V. Kikas ◽  
T. Liblik ◽  
I. Lips
Keyword(s):  
High Resolution ◽  
Coastal Upwelling ◽  
Spatiotemporal Variability ◽  
Gulf Of Finland ◽  
High Resolution Data ◽  
Temperature Variance ◽  
Ocean Upper Layer ◽  
Mesoscale Processes ◽  
The Gulf Of Finland

Abstract. High-resolution numerical modelling, remote sensing and in situ data have revealed significant role of submesoscale features in shaping the distribution pattern of tracers in the ocean upper layer. However, in situ measurements are difficult to conduct with the required resolution and coverage in time and space to resolve the sub-mesoscale, especially in such relatively shallow basins as the Gulf of Finland where the typical baroclinic Rossby radius is 2–5 km. In order to map the multi-scale spatiotemporal variability in the gulf, we initiated continuous measurements with autonomous devices, including a moored profiler and ferrybox system, which were complemented by dedicated research vessel based surveys. The analysis of collected high-resolution data in summers 2009–2012 revealed pronounced variability at the sub-mesoscale in the presence of mesoscale upwelling/downwelling, fronts and eddies. The horizontal wavenumber spectra of temperature variance in the surface layer had slopes close to −2 between the lateral scales from 10 to 0.5 km. Similar tendency towards the −2 slopes of horizontal wavenumber spectra of temperature variance was found in the seasonal thermocline between the lateral scales from 10 to 1 km. It suggests that the ageostrophic sub-mesoscale processes could contribute considerably to the energy cascade in such stratified sea basin. We showed that the intrusions of waters with different salinity, which indicate the occurrence of layered flow structure, could appear in the process of upwelling/downwelling development and relaxation in response to variable wind forcing. We suggest that the sub-mesoscale processes play a major role in feeding surface blooms in the conditions of coupled coastal upwelling and downwelling events in the Gulf of Finland.

Zooplankton of Koporskaya Bay of the Gulf of Finland in the Zone of the Influence of the Leningrad NPS

2014 ◽  
Vol 50 (4) ◽  
pp. 3-14
Author(s):  
M. Ye. Makushenko ◽  
D. V. Kulakov ◽  
Ye. A. Vereshchagina
Keyword(s):  
Gulf Of Finland ◽  
The Gulf Of Finland

Characteristics and Structure of the Cumulonimbus Cloud with Waterspout over the Gulf of Finland

2020 ◽  
Vol 45 (9) ◽  
pp. 607-614
Author(s):  
V. B. Popov ◽  
A. A. Sin’kevich ◽  
J. Yang ◽  
Yu. P. Mikhailovskii ◽  
M. L. Toropova ◽  
...  
Keyword(s):  
Gulf Of Finland ◽  
The Gulf Of Finland ◽  
Cumulonimbus Cloud

To the question of the validity of the species Chromadorita arctica Gagarin, 1999 (Nematoda, Chromadorida)

2019 ◽  
Vol 28 (1) ◽  
pp. 194-196
Author(s):  
S.Ya. Tsalolikhin
Keyword(s):  
Gulf Of Finland ◽  
Novaya Zemlya ◽  
The Gulf Of Finland

The synonymization of species Chromadorita arctica Gagarin, 1999, syn. nov. from Novaya Zemlya and Ch. fennica Jensen, 1979 from the Gulf of Finland is proposed.

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