Modeling meso- and sub-mesoscale circulation along the eastern Crimean coast using numerical calculations

A numerical experiment has been carried out using a hydrodynamical model with nonlinear equations of motion and heat and salt advection to reconstruct the fields of hydrophysical parameters taking into account the real atmospheric forcing for the autumn season along the southern coast of the Crimean Peninsula. The studied part of the coast is situated at 44.25°N 33.95°E/44.72°N 34.55°E. High spatial resolution is used for modeling: 350 m in the horizontal plane with 38 layers in the vertical; the bottom topography is described in detail with ~500 m resolution. Detected and studied meso- and sub-mesoscale structures in the current field agree well with the observational data, which is impossible or hard to identify in numerical experiments with coarser resolution. Their kinematic characteristics and the lifetime are defined and some mechanisms of their origin are suggested.     

Dynamics of land use (2007–2014) and future prospects for development of Russkii Island (Gulf of Peter the Great)

The dynamics of land use in Russkii Island is considered for the period from 2007 to 2014, and some issues of its future development are analyzed. The areas of lands of different categories and the maps of land use on the Sapernyi Peninsula are provided for different time spans. It is established that the implementation of the program of the preparation of Vladivostok for APEC Summit 2012 led to a substantial change in the land use pattern in Russkii Island: the area not involved in the economic turnover decreased by 5.09%, the zone of production, engineering and transport infrastructure increased by a factor of 21.5, and the share of lands for recreational purposes increased more than twice. It is shown that recreational activities implying a decrease in the share of lands not drawn into the economic turnover by more than a factor of 5 must become the dominant kind of land use (according to the program of development of Vladivostok). Attention is focused on the issue related to the creation of the territory of priority socioeconomic development in Russkii Island through the use of private-state partnership mechanisms. It is pointed out that the implementation of the development plans for the island is delayed, in spite of the legislative and financial support from federal and regional authorities. Emphasis is placed on the need to develop the program of comprehensive substantiation, modeling and forecasting of the development of Russkii Island in the interests of the sustainable functioning of the natural-economic system.     

The Nature and Age of Plagioclasites in the Ultrabasic Rai-Iz Massif (Polar Urals)

Corundum-containing and corundum-free plagioclasites localized in chromite-bearing ultramafites of the Rai-Iz Massif were explored for the composition and age. The composition of rock-forming minerals was studied, and the geochemical characteristics of the rocks were ascertained. The isotope age of plagioclasites determined by zircons using the U–Pb mode with a SHRIMP II device was equal to 398 ± 3 Ma. The age found conformed to the boundary on most of the Rai-Iz Massif took place against the background of a starting powerful collision, which caused the formation of the chromium mineralization of a high-chromic type, as well as the separation of a series of essentially plagioclase rocks of ruby mineralization at the discharge zones of the vein series.     

Depositional Environments and Paleogeographic Evolution during the Formation of Upper Paleozoic Terrigenous Rocks in Taimyr

Lithology and Mineral Resources - Upper Paleozoic sections in Taimyr comprise genetic rock complexes of different zones: deep-water shelf; offshore transition zone; shoals, deltas, and beaches of...     

Tectonic Position of the South Anyui Suture

Geotectonics - The South Anyui Fold System was formed at the end of the Early Cretaceous at the site of a closed oceanic basin as a result of the collision of the Chukotka microcontinent with the...     

Confusion Noise Sources in the Infrared Wavelength Range

Astronomy Reports - Within the framework of the model of the extragalactic background created earlier by the authors, the factors influencing the statistical properties of the confusion noise have...