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Dobretsov N. L. Zhmodik S. M. Lazareva E. V. Bryanskaya A. V. Ponomarchuk V. A. Saryg-ool B. Yu. Kirichenko I. S. Tolstov A. V. Karmanov N. S. 《Doklady Earth Sciences》2021,496(2):135-138
Doklady Earth Sciences - Data indicating the important role of microorganisms in the redistribution of REEs in the weathering crust and the decisive role in the concentration of REEs during the... 相似文献
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E. G. Lunev V. A. Ivanov A. G. Kirichenko E. M. Lemeshko S. V. Motyzhev 《Physical Oceanography》2011,20(5):366-378
The autonomous drifting buoys equipped with satellite link turn into one of the most important components of the global system
of operative observations of the ocean and the surface layer of the atmosphere. However, on the regional level, the problem
of analysis of the surface circulation of waters in the coastal zone and sea straits remains quite urgent because the available
drifters cannot be used in this case due to their sizes and long intervals between measurements. We present the results of
development and testing of a new drifter system aimed at measuring currents. The system is based on the use of buoys operating
at depths less than 1 m. To improve the space-and-time resolution of measurements, the buoys are equipped with receivers of
the global positioning system (GPS) and GSM modems for the data transfer via cellular communication networks. The drifter system guarantees the possibility of determination
of the coordinates of buoys with a resolution of 3 min in time and 14 m in space. We describe the specific features of the
design of the proposed information-and-measuring drifter system and present the first results of application of new buoys
called “minidrifters” for the pilot monitoring of currents in the Kerch Strait. 相似文献
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Solar Physics - We develop an approach of the Grad–Shafranov (GS) reconstruction for toroidal structures in space plasmas, based on in situ spacecraft measurements. The underlying theory is... 相似文献
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Anton Reva Artem Ulyanov Alexey Kirichenko Sergey Bogachev Sergey Kuzin 《Solar physics》2018,293(10):140
Nanoflare-heating theory predicts steady hot-plasma emission in non-flaring active regions. It is hard to find this emission with conventional non-monochromatic imagers (such as the Atmospheric Imaging Assembly or the X-Ray Telescope), because their images contain a cool-temperature background. In this work, we search for hot plasma in non-flaring active regions using the Mg?xii spectroheliograph onboard the Complex Orbital Observations Near-Earth of Activity on the Sun (CORONAS)-F/SPectroheliographIc X-ray Imaging Telescope (SPIRIT). This instrument acquired monochromatic images of the solar corona in the Mg?xii 8.42 Å line, which emits only at temperatures higher than 4 MK. The Mg?xii images only contain the signal from hot plasma, without any low-temperature background. We studied the hot plasma in active regions using SPIRIT data from 18?–?28 February 2002. During this period, the Mg?xii spectroheliograph worked with a 105-second cadence almost without data gaps. Hot plasma was observed only in the flaring active regions. We did not observe any hot plasma in non-flaring active regions. The hot-plasma column emission measure in the non-flaring active region is not expected to exceed \(3 \times10^{24}\) cm?5. The hot differential emission measure is lower than 0.01% of the DEM of the main temperature component. The absence of Mg?xii emission in the non-flaring active regions can be explained by weak and frequent nanoflares (with a delay of less than 500 seconds) or by very short and intense nanoflares that lead to non-equilibrium ionization. 相似文献
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V. I. Belokon O. I. Dyachenko P. V. Kirichenko 《Izvestiya Physics of the Solid Earth》2018,54(1):121-127
In this paper, we analyze the self-reversal of magnetization in titanomagnetites as a function of the Ti content and the distribution of Fe3+ to Fe2+ ion transitions in sublattices (which is associated with the law of charge conservation). The dependence of the Curie point on the Ti concentration and the temperature dependence of the mean magnetic moment per iron atom at different Ti concentrations and different cation distributions in sublattices are calculated. 相似文献
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G.?A.?Zherebtsov V.?A.?KovalenkoEmail author K.?E.?Kirichenko 《Geomagnetism and Aeronomy》2017,57(6):637-644
The possible contribution of solar and geomagnetic activity to changes in the characteristics of the main components of the climatic system—the ocean and the atmosphere—is considered and discussed. The mechanisms and models of the solar activity impact on thermobaric and climatic characteristics of the troposphere are presented. Based on a complex analysis of hydrometeorological data, it has been shown that changes in the temperature of the troposphere and the World Ocean reflect a response both to individual helio-geophysical perturbations and to long-term changes (1854–2015) of solar and geomagnetic activity. It is established that the climatic response to the influence of solar and geomagnetic activity is characterized by considerable spatio-temporal heterogeneity, is of a regional nature, and depends on the general circulation of the atmosphere. The largest contribution of solar activity to the global climate changes was observed in the period 1910–1943. 相似文献
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