A numerical experiment on the calculation of the tropical Atlantic circulation in 1982–1983, with the real wind considered     

A. I. Androsovich  E. N. Mikhailova  I. M. Semenyuk 《Physical Oceanography》1995,6(1):61-72

This paper discusses the results obtained through numerical modelling of the annual course of circulation and thermohaline field evolution in the tropical Atlantic under the impact of real wind forcing (from March 1982 to March 1983) and compares them with the calculation of seasonal variability induced by the climatic wind. Changes in the pattern of the equatorial currents and related temperature fields induced by the specific peculiarities in the wind field are analysed.Translated by Vladimir A. Puchkin.  相似文献   

Modelling of the ecosystem of the Black-Sea shelf zone near the estuary of the Danube     

V. A. Ivanov  S. P. Lyubartseva  N. Mikhailova  N. B. Shapiro 《Physical Oceanography》2001,11(6):509-524

We analyze the results of numerical calculations performed according to the three-dimensional interdisciplinary model of an ecological system of the Black-Sea shelf zone near the estuary of the Danube. The complete system of equations of hydrothermodynamics is solved together with transport equations of the advection-diffusion-reaction type used to describe the transformation of a substance (nitrogen) between the components of the characteristic vectors of the ecosystem: plankton, detritus, and biogenic elements (nitrates). We describe the distinctive features of the circumcontinental distribution of components obtained as a result of numerical experiments and present arguments for the conclusion that the ecosystem of the Danube estuary water area plays the role of a buffer zone between the press of the Danubian biogenic pollutions and the neighbouring areas of the shelf zone and open sea. Translated by Peter V. Malyshev and Dmitry V. Malyshev  相似文献   

Upwelling in the Black Sea by the results of numerical experiments and satellite data     

V. N. Kosnyrev  E. N. Mikhailova  S. V. Stanichny 《Physical Oceanography》1997,8(5):329-340

The paper analyses results of the numerical simulation of upwelling events in the north-western part of the Black Sea, mostly near the South Crimea. The calculations were performed using a numerical model based on primitive hydrodynamics equations. Emphasis is laid on the case when a salinity front simulating the Black Sea rim current is prescribed in the initial conditions. The interaction of the Black Sea rim current's stream with the coastline and bottom topography leads to the development of an upwelling near the Crimea's coast, even in the absence of wind forcing. The paper discusses the structure of the three-dimensional circulation of waters in the shelf area of the NW Black Sea. Numerical modelling results are matched up with the satellite data obtained by the HRPT receiving station. Translated by Vladimir A. Puchkin.  相似文献   

The effect of boundary conditions and turbulent exchange intensity on the adaptation calculations of the tropical Atlantic hydrothermodynamic fields     

E. N. Mikhailova  N. B. Shapiro 《Physical Oceanography》1993,4(6):443-452

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Simulation of Hydrophysical Processes in Coastal Regions of the Sea     

Ivanov  V. A.  Kubryakov  A. I.  Lyubartseva  S. P.  Mikhailova  É. N.  Shapiro  N. B. 《Physical Oceanography》2004,14(2):67-83

In the present work, we generalize the results of our investigations in the field of simulation of hydrophysical and ecological processes in coastal regions of various seas and some closed basins. The developed and applied mathematical models and the results of numerical experiments are briefly analyzed.  相似文献   

The Hydrological Regime and the Peculiarities of Formation of the Po River Delta     

Mikhailova  M. V. 《Water Resources》2002,29(4):370-380

The peculiarities of the hydrological regime of the delta and near-shore zone of the Po River are discussed. The intrusion of salt seawater into the delta is described. The history of the Po Delta formation has been restored on the basis of the analysis of historical, archeological, and cartographic data. As shown, the peculiarities of hydrological and morphological processes in the Po River mouth are associated with natural and specifically with human-induced variations in sediment runoff of the river, with levee construction along branches, subsidence of deltaic deposits, and eustatic rise of the sea level.  相似文献   

Transformation of the Ebro River Delta under the Impact of Intense Human-Induced Reduction of Sediment Runoff   总被引：1，自引：0，他引：1  

Mikhailova  M. V. 《Water Resources》2003,30(4):370-378

The regularities of the Ebro River delta formation and the impact of hydraulic construction on the river sediment runoff are discussed. As shown, the drastic reduction of the sediment runoff after the construction of two large reservoirs in the lower river reaches in the 1960s slowed down the delta protrusion and intensified the delta coastline washout.  相似文献   

Natural and Human-Induced Variations in Water and Sediment Runoff in the Danube River Mouth     

Levashova  E. A.  Mikhailov  V. N.  Mikhailova  M. V.  Morozov  V. N. 《Water Resources》2004,31(3):235-246

Long-term natural and human-induced variations in water and sediment runoff in the Danube Delta head were studied on the basis of analysis of an extremely long series of observations (1840–2002). A considerable reduction of sediment runoff in the second half of the 20th century related to sediment accumulation in reservoirs was revealed. It was found that human activities had an insignificant impact on the water runoff variations and the period of 1961–2002 turned out to be abnormally water-abundant.  相似文献   

Epifanovite,NaCaCu5(PO4)4[AsO2(OH)2] · 7H2O: a New Mineral from the Kester Deposit,Sakha (Yakutia) Republic,Russia     

Yakovenchuk  V. N.  Pakhomovsky  Ya. A.  Konoplyova  N. G.  Panikorovskii  T. L.  Mikhailova  Yu. A.  Bocharov  V. N.  Krivovichev  S. V.  Ivanyuk  G. Yu. 《Geology of Ore Deposits》2018,60(7):587-593

Geology of Ore Deposits - Epifanovite, NaCaCu5(PO4)4[AsO2(OH)2] · 7H2O, a new natural copper, sodium and calcium arsenate–phosphate, has been found in a quartz–phosphate pocket...  相似文献   

Corundum-group minerals in rocks of the Khibiny alkaline pluton,Kola Peninsula     

Yu. A. Mikhailova  N. G. Konopleva  V. N. Yakovenchuk  G. Yu. Ivanyuk  Yu. P. Men’shikov  Ya. A. Pakhomovsky 《Geology of Ore Deposits》2007,49(7):590-598

Five minerals of the corundum group have been identified in the Khibiny pluton with certainty. Corundum proper and karelianite occur only in hornfels after volcanic and sedimentary rocks. Xenoliths of hornfels mark the ring faults that bound foidalite within the field of foyaite. Hematite occurs in hydrothermally altered nepheline syenite and crosscutting hydrothermal veins related to the ring faults. Minerals of the ilmenite-pyrophanite series are present in all rocks of the pluton, including veins. Accessory ilmenite in foyaite varies from the manganese variety and pyrophanite in the inner and outer parts of the pluton to manganese-free ilmenite in zone of the Main Ring Fault. In xenoliths of volcanic rocks and alkaline ultramafic rocks, ilmenite is enriched in magnesium. The zoning in distribution of the above-mentioned minerals and the character of variation in their compositions from margins of the pluton to its center are consistent with the petrochemical zoning formed as a result of foyaite alteration of near ring faults.  相似文献