naa a22 4500 510765556 CHVBK 20180411083155.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1134/S0001437013020094 doi (NATIONALLICENCE)springer-10.1134/S0001437013020094 Variability of the Baltic Sea level and floods in the Gulf of Finland [Elektronische Daten] [E. Kulikov, I. Medvedev] The statistical analysis of the long-term data on the variability of the Baltic Sea level has revealed the complicated character of the wave field structure. The wave field formed by the variable winds and the disturbances of the atmospheric pressure in the Baltic Sea is a superposition of standing oscillations with random phases. The cross spectral analysis of the synchronous observation series of the level in the Gulf of Finland has shown that the nodal lines of the standing dilatational waves are clearly traced with frequencies corresponding to the distance from the nodal line to the top of the gulf (a quarter of the wave length). Several areas of the water basin with clearly expressed resonant properties may be distinguished: the Gulfs of Finland, Riga, and Bothnia, Neva Bay, etc. The estimations of the statistical correlation of the sea level oscillations with the variation of the wind and atmospheric pressure indicate the dominant role of the zonal wind component during the formation of the floods in the Gulf of Finland. The probable reason for the extreme floods in St. Petersburg may be the resonance rocking of the eigenmode oscillations corresponding to the basic fundamental seiche mode of the Gulf of Finland with a period of 27 h when the repeated atmospheric disturbances in the Baltic Sea occur with a period of 1-2 days. Pleiades Publishing, Ltd., 2013 Kulikov E. Institute of Oceanology, Russian Academy of Sciences, pr. Nakhimovskii 36, 117997, Moscow, Russia aut Medvedev I. Institute of Oceanology, Russian Academy of Sciences, pr. Nakhimovskii 36, 117997, Moscow, Russia aut Oceanology SP MAIK Nauka/Interperiodica 53/2(2013-03-01), 145-151 0001-4370 53:2<145 2013 53 11491 https://doi.org/10.1134/S0001437013020094 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0001437013020094 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kulikov E. Institute of Oceanology, Russian Academy of Sciences, pr. Nakhimovskii 36, 117997, Moscow, Russia aut NATIONALLICENCE 700 1- Medvedev I. Institute of Oceanology, Russian Academy of Sciences, pr. Nakhimovskii 36, 117997, Moscow, Russia aut NATIONALLICENCE 773 0- Oceanology SP MAIK Nauka/Interperiodica 53/2(2013-03-01), 145-151 0001-4370 53:2<145 2013 53 11491 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer