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B. V. Arkhipov V. N. Koterov V. V. Solbakov D. A. Shapochkin Yu. S. Yurezanskaya 《Russian Meteorology and Hydrology》2007,32(6):377-387
We consider features of the application of a discrete particle statistical method to solve the transport and diffusion equation in the case of the time-dependent (contaminant transport by turbulent flow) or nonlinear (thin slick spreading on the water surface) diffusion rate. For the problem of contaminant dispersion by turbulent flow, an algorithm is developed for discrete particle technique application in the case of the diffusion rate change governed by “4/3 law,” and a good agreement of numerical and analytical results is demonstrated. For the problem of oil slick spreading, as described by the quasi-linear transport-diffusion equation, an algorithm of the particle random walk is developed, in which the walk step dispersion depends on the unknown function. The solution using a discrete particle technique for both volley and continuous discharge is in good agreement with analytical and/or numerical solutions using the grid method (the latter is practically equivalent to the analytical solution due to small time and space steps for a one-dimensional axisymmetric case). 相似文献
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The Influence of Climate Change on the Intensity of Ice Gouging of the Bottom by Hummocky Formations
Ogorodov S. A. Arkhipov V. V. Baranskaya A. V. Kokin O. V. Romanov A. O. 《Doklady Earth Sciences》2018,478(2):228-231
Doklady Earth Sciences - In the present work, several results of repeated sounding of bottom ice gouging microrelief within the area of the underwater pipeline crossing of the Baydaratskaya Bay,... 相似文献
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Doklady Earth Sciences - 相似文献
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A. N. Didenko V. S. Zakharov G. Z. Gil’manova T. V. Merkulova M. V. Arkhipov 《Russian Journal of Pacific Geology》2017,11(2):123-133
The fractal dimension of the epicentral field of earthquakes (D = 1.6) is determined for the Sikote Alin orogen and adjacent areas. According to this parameter, the region occupies the position between the Kamchatka Peninsula, Kuril Islands (1.61 and 1.69), the East China area, and the Lake Baikal region (1.55 and 1.40). Differentiation of the studied area based on the fractal dimension of the number of earthquakes and on the released energy calculated per unit square shows that the most active crustal areas are associated with the Kharpi–Kur–Priamur’e zone of the northeastern orientation, which is the northern segment of the Tan-Lu transregional fault system. Analysis of the time series of seismic events (MLH ≥ 2.4) in the Sikhote Alin and adjacent areas in the period from 1960 to 2013 shows that the “harmonic” with a 10.5-year period is most clearly displayed. This period (11–13 years) was previously distinguished by B.V. Levin and coauthors from the study of the largest number of earthquakes with M ≥ 4.4 for the period of 1971–2003. 相似文献
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Arkhipov B. V. Koterov V. N. Kochetova A. S. Solbakov V. V. Khublaryan G. M. 《Water Resources》2003,30(6):653-658
A technique for numerical modeling of hydrodynamic fields at a hydraulic structure on the shelf of a marginal or closed sea is described. Examples of calculations for a specific facility in the shelf zone of the Northern Caspian Sea are given. 相似文献
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A. N. Didenko S. Otoh V. V. Golozubov M. V. Arkhipov A. V. Kudymov A. Yu. Peskov M. Nagata K. Yamamoto 《Doklady Earth Sciences》2018,481(2):1000-1003
New results of dating of detrital zircons from the Kema and Silasa Formations (Albian, Sikhote–Alin Orogenic Belt) permit determination of the provenance sources and geodynamic settings of sediment deposition. The Silasa Formation was deposited in outer island arc settings, separated by a forearc basin from the inner island arc, where the Kema Formation sediments were accumulated. The significant depth and width of the forearc basin hindered input of continent-derived debris to the area of sedimentation of the Silasa Formation. 相似文献
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A. N. Didenko A. Yu. Peskov A. V. Kudymov I. P. Voinova A. I. Tikhomirova M. V. Arkhipov 《Izvestiya Physics of the Solid Earth》2017,53(5):733-749
The results of the paleomagnetic investigation of the sediments pertaining to the Silasinskaya Formation of the Kiselevka–Manoma terrane within the Sikhote Alin orogenic belt are presented. The ancient prefolding magnetization component is revealed: Decs = 271.7°, Incs = 52.2°, Ks = 13.5, and a 95s = 5.1° (positive fold and reversal tests); and the coordinates of the corresponding paleomagnetic pole for ~103 ± 10 Ma are calculated: Plat = 26.3°, Plong = 70.5°, dp = 4.8°, and dm = 7.0°. As a result of this study, the geodynamical settings and paleolatitudes of the formation of three objects in the northern part of Sikhote Alin orogen are established: (a) the Kiselevskaya Formation of the Kiselevka–Manoma terrane was formed 133 Ma ago at 19° N under the seamount condition on the Izanagi Plate; (b) the Silasinskaya Formation of the Kiselevka–Manoma terrane was formed 103 Ma ago at 35° N under the oceanic island arc conditions; and (c) the Utitskaya Formation of the Zhuravlevsk–Amur terrane was formed 95 Ma ago at 54° N in the active continental margin conditions. It is found that the transform continental margin of Eurasia developed in the time interval from 105 to 65 Ma ago in the regime of a left-lateral submeridional shear from 30° to 60° N. The complete attachment of the studied rocks of the Kiselevka–Manoma terrane to the Eurasia’s margin (to the Zhuravlevsk–Amur terrane) occurred at the boundary of 60–70 Ma. Simultaneously, the sense of the displacement in the submeridional shears changed from left-lateral to right-lateral with the formation of pullapart type basins (Lake Udyl’). 相似文献
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A.V. Arkhipov 《Astrophysics and Space Science》1997,252(1-2):67-71
It is shown that the Earth is a natural collector of extraterrestrial nonsterile artefacts that could impact our planet. Artefacts from 1.2 × 106 nearby stars could have reached the Earth over its history, and could be agents for spontaneous interstellar panspermia, even if alien civilizations pollute space only at the current terrestrial rate. 相似文献
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