Sub-inertial oscillations in the Black Sea generated by the semidiurnal tidal potential     

A. N. Lukyanova  A. V. Bagaev  V. A. Ivanov  V. B. Zalesny 《Izvestiya Atmospheric and Oceanic Physics》2017,53(6):624-631

The Black Sea shelf is a region of intense manifestation of various dynamical processes. Under the influence of different natural forces, eddy-wave phenomena develop here, which influence the general circulation of sea waters, biological productivity, and the condition of the engineering structures. Modern numerical models allow us to simulate and analyze the processes of the joint dynamics of marine circulation and large-scale waves. In this work, we study the spatiotemporal spectral characteristics of the sea level and velocity fluctuations formed due to atmospheric forcing and tidal potential. The hydrophysical fields are calculated using the Institute of Numerical Mathematics, Russian Academy of Sciences (INM RAS), σ model based on primitive equations. We use the CORE data as atmospheric forcing at the sea surface; the tidal potential is described by the semidiurnal lunar constituent M₂. Analyzing the simulation results makes it possible to emphasize that accounting for the semidiurnal tidal potential not only improves the accuracy of the sea-level calculation at coastal stations, but also generates subinertial baroclinic oscillations previously found in the Black Sea from the data of in situ observations.  相似文献   

Integral chemical-ecological assessment of the state of Ussuri Bay (the Sea of Japan)     

O. N. Lukyanova  S. A. Cherkashin  L. V. Nigmatulina  A. P. Chernyaev  E. L. Veideman  S. A. Ireykina  T. S. Pryazhevskaya 《Water Resources》2009,36(5):586-593

The paper presents data on pollutant input into and the state of biota in Ussuri Bay—the largest inner water area of Peter the Great Bay (the Sea of Japan), which is of significance for fishery and recreation. The study revealed negative dynamics in pollutant input over the past 15 years, reversible changes in the structural-functional characteristics of communities and molecular biomarkers in regional indicator species in most parts of the bay. Areas with heaviest pollution and water toxicity for biota are identified.  相似文献   

Niobium in hydrothermal systems related to alkali granites: Thermodynamic description of hydroxo and hydroxofluoride complexes     

E. V. Lukyanova  N. N. Akinfiev  A. V. Zotov  I. T. Rass  N. P. Kotova  V. S. Korzhinskaya 《Geology of Ore Deposits》2017,59(4):305-314

Available experimental data on the solubility of Nb₂O₅ and the stability constants for particles of an aqueous solution in the Nb–O–H–F system were processed. As a result, a set of thermodynamic properties for 25°C and 1 bar was obtained, in addition to the equation parameters for the HKF model (Helgeson–Kirkham–Flowers) for hydroxo and hydroxofluoride niobium complexes. F^– ion is the most important factor governing the concentration of dissolved Nb: neutral hydroxo complex Nb(OH)₅(aq) is formed at a low HF concentration, whereas an increase in HF results in an increase in the first Nb(OH)₄F(aq) and second Nb(OH)₃F₂(aq) fluoride complexes. The Nb(OH)₅F^– oxofluoride anion determines oxide solubility in alkali F-bearing fluids. Neutralization of acidic fluoride solution can be the main factor leading to niobium deposition.  相似文献   

Large accumulative forms of relief on the southeastern coast of the Baltic Sea     

E. N. Badyukova  L. A. Zhindarev  S. A. Lukyanova  G. D. Solovieva 《Oceanology》2017,57(4):580-588

The paper describes the conditions of formation of large accumulative forms on the southeastern coast of the Baltic Sea and presents the results of a comparative analysis of these structures. It has been established that Baltic barrier–lagoon systems have a complex geological and geomorphologic structure. Sandy barriers, which are, in general, marine accumulative formations, often comprise various fragments of different genesis (moraine remnants, glaciolacustrine and deltaic plains, etc.). The formation and development of large accumulative forms in the southeastern Baltic occurred against the background of sea level fluctuations in the Littorina time following a unified scenario for the entire coast.  相似文献   

A Tidal Semidiurnal Harmonic in the Black Sea Dynamics according to Numerical Modeling Results     

V. A. Ivanov  V. B. Zalesny  A. N. Lukyanova  A. V. Bagaev 《Doklady Earth Sciences》2018,480(1):607-610

The parameters of barotropic and baroclinic oscillations in the subinertial range have been obtained by numerical simulations of the Black Sea circulation using a model developed at the Marchuk Institute of Numerical Mathematics, Russian Academy of Sciences. The structures and periods of barotropic and baroclinic seiches are in good agreement with the known theoretical predictions and results of numerical modeling of seiches obtained for the Black Sea subbasins.  相似文献   

Study of the State and Variability of the Northwestern Japan Sea in the Autumn–Winter Period on Cruise 62 of the R/V Akademik Oparin     

Lobanov  V. B.  Sergeev  A. F.  Maryina  E. N.  Prushkovskaya  I. A.  Tishchenko  P. Y.  Kalinchuk  V. V.  Koltunov  A. M.  Makseev  D. S.  Sagalaev  S. G.  Yurikova  D. A.  Akulova  E. A.  Aparina  K. A.  Zagoruyko  O. I.  Zverev  S. A.  Kraynikov  G. A.  Kukla  S. P.  Leusov  A. E.  Lukyanova  N. B.  Ryumina  A. A.  Semkin  P. Y.  Shvetsova  M. G.  Shkirnikova  E. M.  Yurikova  E. A.  Yurtsev  A. Y.  Yakimov  T. S. 《Oceanology》2021,61(5):742-744

Oceanology - The results of research carried out on cruise 62 of the R/V Akademik Oparin from December 14 to 29, 2020 continued monitoring of the interannual variability of the Japan Sea water...  相似文献