Features of Winter Thunderstorms in Kamchatka     

Smirnov  S. E.  Mikhailov  Yu. M.  Mikhailova  G. A.  Kapustina  O. V. 《Geomagnetism and Aeronomy》2019,59(6):696-703

Geomagnetism and Aeronomy - Winter thunderstorms in Kamchatka are a rare meteorological phenomenon. Temporal variations of the quasi-static electric field and meteorological values at the Paratunka...  相似文献   

Typochemistry of rinkite and products of its alteration in the Khibiny Alkaline pluton,Kola Peninsula     

N. G. Konopleva  G. Yu. Ivanyuk  Ya. A. Pakhomovsky  V. N. Yakovenchuk  Yu. A. Mikhailova  E. A. Selivanova 《Geology of Ore Deposits》2015,57(7):614-625

The occurrence, morphology, and composition of rinkite are considered against the background of zoning in the Khibiny pluton. Accessory rinkite is mostly characteristic of foyaite in the outer part of pluton, occurs somewhat less frequently in foyaite and rischorrite in the central part of pluton, even more sparsely in foidolites and apatite–nepheline rocks, and sporadically in fenitized xenoliths of the Lovozero Formation. The largest, up to economic, accumulations of rinkite are related to the pegmatite and hydrothermal veins, which occur in nepheline syenite on both sides of the Main foidolite ring. The composition of rinkite varies throughout the pluton. The Ca, Na, and F contents in accessory rinkite and amorphous products of its alteration progressively increase from foyaite and fenitized basalt of the Lovozero Formation to foidolite, rischorrite, apatite–nepheline rocks, and pegmatite–hydrothermal veins.  相似文献   

Variability peculiarities of distribution of transparency and suspended matter content in the northwestern part of the Black Sea in spring caused by large-scale processes in the ocean–atmosphere system     

E. N. Voskresenskaya  A. S. Kukushkin  N. V. Mikhailova 《Russian Meteorology and Hydrology》2011,36(1):45-54

The display is considered of global processes in the ocean-atmosphere system in the variability of hydrophysical and hydrobiological fields of the northwestern part of the Black Sea in spring period of 1978–1995. It is demonstrated that the variability of North Atlantic and Southern oscillations in winter-spring period affects the spring hydrometeorological conditions in catchment areas of European rivers of the Black Sea basin causing the variability of runoff volumes of these rivers and the scales of spreading river waters at the northwestern shelf. Hydrological and hydrobiological characteristics of shelf waters varying in the process influence the formation of distribution of suspended matter content and transparency.  相似文献   

Tropical Cyclones and Possible Winter Thunderstorms on Kamchatka     

Mikhailov  Yu. M.  Smirnov  S. E.  Mikhailova  G. A.  Kapustina  O. V. 《Geomagnetism and Aeronomy》2020,60(5):619-635

Geomagnetism and Aeronomy - The influence of tropical cyclones on the thunderstorm activity on the Kamchatka peninsula for winter thunderstorms in the 2008–2018 period is studied. The...  相似文献   

Hydrological-Morphometric Characteristics of Danube Delta Branches in the Backwater Zone     

Mikhailova  M. V.  Isupova  M. V.  Morozov  V. N. 《Water Resources》2020,47(3):366-373

Water Resources - The relationships between various hydrological and morphometric characteristics of branch channels in the backwater zone are analyzed in the case of the Chilia channel system in...  相似文献   

Paleomagnetism of carboniferous formations of the Russian platform: Reinvestigation of old collections     

A. G. Iosifidi  V. A. Mikhailova 《Izvestiya Physics of the Solid Earth》2017,53(3):461-476

The collections of Carboniferous rocks from sections of the Russian Platform (Gzhelian, Moscovian, Bashkirian, and Visean stages) are studied. The new mean paleomagnetic poles are obtained from the Gzhelian, Moscovian, and Visean layers of the Carboniferous of the Russian Platform. In the redbed Gzhelian and Moscovian rocks, the natural remanent magnetization (NRM) components with the inclination shallowing are revealed, which is due to the presence of the large hematite particles or particle aggregates associated with the interaction between the magnetic and clay particles. Based on the obtained determinations and the results contained in the World paleomagnetic database, the trajectory of the apparent polar wander path (APWP) for the East European Platform is constructed in the interval from the Devonian to Early Permian. The Carboniferous kinematics of the East European Platform is estimated.  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   

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