Parameters of the intense X-ray and gamma-ray radiation from the solar flare of May 20, 2002, as observed from the Coronas-F spacecraft     

A. V. Bogomolov  A. P. Ignat’ev  K. Kudela  S. N. Kuznetsov  Yu. I. Logachev  O. V. Morozov  I. N. Myagkova  S. N. Oparin  A. A. Pertsov  S. I. Svertilov  B. Yu. Yushkov 《Astronomy Letters》2003,29(3):199-204

We consider temporal, spectral, and polarization parameters of the hard X-ray and gamma-ray radiation observed during the solar flare of May 20, 2002, in the course of experiments with the SONG and SPR-N instruments onboard the Coronas-F spacecraft. This flare is one of the most intense gamma-ray events among all of the bursts of solar hard electromagnetic radiation detected since the beginning of the Coronas-F operation (since July 31, 2001) and one of the few gamma-ray events observed during solar cycle 23. A simultaneous analysis of the Coronas-F and GOES data on solar thermal X-ray radiation suggests that, apart from heating due to currents of matter in the the flare region, impulsive heating due to the injection of energetic electrons took place during the near-limb flare S21E65 of May 20, 2002. These electrons produced intense hard X-ray and gamma-ray radiation. The spectrum of this radiation extends up to energies ≥7 MeV. Intense gamma-ray lines are virtually unobservable against the background of the nonthermal continuum. The polarization of the hard X-ray (20–100 keV) radiation was estimated to be ≤15–20%. No significant increase in the flux of energetic protons from the flare under consideration was found. At the same time, according to ACE data, the fluxes of energetic electrons in interplanetary space increased shortly (～25 min) after the flare.  相似文献   

The posthumous tectonics and mechanism of exhumation of granitic plutons: The case of the Transbaikal region and the Tien Shan     

M. G. Leonov  Yu. A. Morozov  A. V. Nikitin 《Geotectonics》2008,42(2):81-104

The study of granitic plutons of the Baikal Highland and the Tien Shan has made it possible to establish new features of their posthumous (after incorporation into the consolidated Earth’s crust) structural reworking and to understand the implications of the cataclastic flow for the exhumation of the crystalline basement in the studied regions. It is shown that granitic plutons undergo appreciable structural transformation at the stages of tectonic reactivation that is significantly separated in time from the moment of formation of plutons as geological bodies. The 3D cataclastic deformation is the main mode of structural reworking of granitic plutons, while the cataclastic flow is the main form of their mobility. Newly recognized slice structures characterize the volumetric deformation of granites.  相似文献   

Transport of antarctic waters in the deep channels of the Atlantic Ocean     

E. G. Morozov  A. N. Demidov  R. Yu. Tarakanov 《Doklady Earth Sciences》2008,423(1):1286-1289

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The Kyrgyz-Ata Synform in the South Tien Shan: Structural and kinematic aspects of its evolution     

Yu. A. Morozov  V. G. Talitskii 《Geotectonics》2006,40(1):37-52

The complexes of metamorphic rocks that take part in the tectonic structure of the South Tien Shan are mostly confined to the cores of large synforms and occupy high structural position therein. Problems of their age, origin, metamorphic conditions, and relationships with the adjacent unmetamorphosed Paleozoic sequences have remained debatable throughout the history of geological investigations. The results of detailed studies of the Kyrgyz-Ata Synform, a typical structure of the Turkestan-Alay Zone in the South Tien Shan, are reported in this paper. The metamorphic rocks of the Kan Group participate in the structure of this synform. On the basis of the study of structural assemblages and the kinematic analysis, it is concluded that the multistage evolution of this tectonic unit proceeded under transpressive conditions of volcanic trough “crushing.” The detailed study of rock alteration in the contact zone between the Kan Group and the Middle Devonian basic volcanic rocks allowed us to suggest that the metamorphic Kan Group is not a self-dependent stratigraphic unit but represents an infrastructure (a metamorphosed analogue of the volcanic sequence and underlying rocks) displaced tectonically over its own suprastructure.  相似文献   

Determination of thermal conductivity and formation temperature from cooling history of friction-heated probes   总被引：1，自引：0，他引：1  

Tien-Chang Lee  A. D. Duchkov  S. G. Morozov 《Geophysical Journal International》2003,152(2):433-442

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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   

Polygon-70: Data Interpretation in the Light of New Concepts about Internal Waves     

Morozov  E. G. 《Izvestiya Atmospheric and Oceanic Physics》2020,56(4):428-434

Izvestiya, Atmospheric and Oceanic Physics - We analyze our concepts about ocean dynamics and, in particular, internal waves. Our concepts have changed over the 50 years after the Polygon-70...  相似文献   

Antarctic Bottom Water Flow through the Eastern Part of the Philip Passage in the Weddell Sea     

Morozov  E. G.  Frey  D. I.  Tarakanov  R. Yu. 《Oceanology》2020,60(5):589-592

Oceanology - Measurements of currents and Antarctic Bottom Water properties overflowing the sill from the Weddell to the Scotia Sea are described. The bottom water overflows the sill of one of the...  相似文献   

The kinetic studies of the cobalt ion removal from aqueous solutions by dolomite-based sorbent     

A. I. Ivanets  I. L. Shashkova  N. V. Kitikova  Y. Morozov 《International Journal of Environmental Science and Technology》2016,13(11):2561-2568

The kinetics of Co(II) ions adsorption on thermally activated dolomite was studied with respect to the calcination temperature of natural dolomite. The sorption of Co(II) onto all samples is reasonably fast: The first 30–35 min accounts for approximately 70–80 % of Co(II) removal from feed solutions. In order to select the main rate-determining step in the overall uptake mechanism, a series of experiments were performed and data obtained were interpreted in terms of film diffusion control, intraparticle diffusion, pseudo-first-order and pseudo-second-order models. From the modeling of kinetic data, it can be concluded that adsorption of Co(II) ions from aqueous solution by heat-treated dolomite is a complex phenomenon and occurs in a mixed diffusion mode—the kinetic data are well described by the pseudo-second-order equation. The possible multistage sorption mechanism involving film diffusion and intraparticle diffusion control steps as well as chemical interaction between Co(II) ions and calcined dolomite is proposed.  相似文献   

The Lomonosov Equatorial Undercurrent according to Data Measured with a Shipborne Profiler, 2014–2017     

Demidova  T. A.  Morozov  E. G.  Neiman  V. G. 《Doklady Earth Sciences》2018,482(1):1229-1233

The velocity and structure of the Lomonosov Equatorial Undercurrent of the Atlantic Ocean are determined based on the data measured with a shipborne acoustic profiler from 2014 to 2017. The seasonal variability of this flow is estimated, and the cases of its outcropping to the surface in the spring of the Northern Hemisphere are revealed.

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