TY - JOUR
T1 - Spatial Structure and Propagation of the Neva Flood Waves
AU - Захарчук, Евгений Александрович
AU - Тихонова, Наталья Александровна
AU - Сухачев, Владимир Николаевич
PY - 2020/5/21
Y1 - 2020/5/21
N2 - Abstract: The analysis of the results of numericalhydrodynamic modeling of water level and current fluctuations of theBaltic Sea in the periods of floods in the Finland and Riga gulfs iscarried out. It is shown that due to the considerable isolation of thesea a great influence on the dynamics of flood waves have the processesthey reflect, resulting in a generated progressive-standing waves.During a especially dangerous sea level rise on January 9, 2005, theflood wave had a period of about 40–42 hours. This period turned out tobe close to the 41-hour period of the Baltic Sea, distinguished on thebasis of an analysis of the results of numerical hydrodynamic modelingof free Baltic Sea level oscillations. The spatial structure of thelevel field for eigenoscillations with a period of 41 hours allows themto be identified as multinodal progressive-standing waves, characterizedby a large number of amphidromic systems and antinodes. One of the mostpronounced antinodes of eigenoscillations with a period of 41 hours isin the Neva Bay of the Gulf of Finland.
AB - Abstract: The analysis of the results of numericalhydrodynamic modeling of water level and current fluctuations of theBaltic Sea in the periods of floods in the Finland and Riga gulfs iscarried out. It is shown that due to the considerable isolation of thesea a great influence on the dynamics of flood waves have the processesthey reflect, resulting in a generated progressive-standing waves.During a especially dangerous sea level rise on January 9, 2005, theflood wave had a period of about 40–42 hours. This period turned out tobe close to the 41-hour period of the Baltic Sea, distinguished on thebasis of an analysis of the results of numerical hydrodynamic modelingof free Baltic Sea level oscillations. The spatial structure of thelevel field for eigenoscillations with a period of 41 hours allows themto be identified as multinodal progressive-standing waves, characterizedby a large number of amphidromic systems and antinodes. One of the mostpronounced antinodes of eigenoscillations with a period of 41 hours isin the Neva Bay of the Gulf of Finland.
KW - Dangerous sea level rise
KW - Fourier analysis
KW - Neva River floods
KW - Numerical hydrodynamic modeling
KW - Progressive-standing waves
UR - https://www.mendeley.com/catalogue/2fd8f7ad-0ee4-34bc-b259-91033d4f4d66/
U2 - 10.3103/S1068373920040044
DO - 10.3103/S1068373920040044
M3 - Article
VL - 45
SP - 245
EP - 253
JO - Meteorologiya i Gidrologiya
JF - Meteorologiya i Gidrologiya
SN - 0130-2906
ER -