Physical parameters of visual binaries with computed orbits     

Z. T. Kraicheva  E. I. Popova  A. V. Tutukov  L. R. Yungel'son 《Astrophysics》1985,22(1):63-73

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Summertime warming in the European part of Russia and extreme heat in 2010 as manifestation of large-scale atmospheric circulation trends in the late 20th–early 21st centuries     

V. V. Popova 《Russian Meteorology and Hydrology》2014,39(3):159-167

Considered is a relationship between long-term variations of the surface air temperature and of the field of geopotential at the level of 500 hPa in the middle of summer in the European part of Russia and the variations of large-scale atmospheric circulation described by the indices of North Atlantic and North Pacific centers of atmospheric action. The considerable inhomogeneity in the course of average temperature in the European part of Russia in July divides it into two periods, before and after the 1980s. Unlike stationary fluctuations of temperature before the 1980s, the 6–10-year fluctuations are typical of the period of 1981–2010 against a background of its considerable rise by 0.8°C per 10 years with the contribution of 20% to the total variance. During this period, about 80% of temperature variability are caused by the circulation variations, and 55% of them are associated with the North Pacific centers of atmospheric action, in particular, with the WP index in July, May, and April. Revealed regression dependences between circulation indices and the air temperature in the European part of Russia explain rather accurately the linear trend, the fluctuations with the period of 6–10 years, and the extremes in 1988, 2001–2003, and 2010. The analysis of the time series (1950–2012) of WP, PDO, and SOI indices demonstrates that changes in the atmospheric circulation took place in the extratropical zone of the Northern Hemisphere at the turn of the 1980s and this caused the formation of blocking situations and, hence, steady heat and drought in summer in the mid-latitude zone including the European part of Russia. These variations can be interpreted as a change in the regimes of strong (1950–1980) and weak (1981–2012) circulation. The heat in July 2010 was an extreme display of weak circulation, and this is indicated by the unprecedented low values of the WP index in July and May.  相似文献   

Forecast of convective storms evolution based on the analysis of their radar echo and wind hodograph in the troposphere in the moving coordinate system     

S. D. Plyusnin  E. I. Potapov  I. A. Garaba  V. P. Popova 《Russian Meteorology and Hydrology》2013,38(7):465-471

Generalized are the results of the research carried out by the Special Service for Weather Modification of the Republic of Moldova and of the features of formation and evolution of cumulonimbus clouds Cb based on studying their radar echo in the Lagrange (moving) coordinate system. Besides the regularities proceeding from the ideas about the evolution of Cb on the sides of atmospheric mesoscale structures [16], the features of evolution of powerful Cb are revealed at the significant wind shear. The direction and evolution features of Cb can be predicted using the wind hodograph in the troposphere plotted in the moving coordinate system. Results of the research are used in the Special Service for Weather Modification of the Republic of Moldova during the operational activities on hail suppression for predicting the areas of formation of new convective cells and for optimizing the size of the areas for their seeding with the crystallizing reagent.  相似文献   

Current and expected changes in Colorado beetle climatic habitat in Russia and neighboring countries     

E. N. Popova  S. M. Semenov 《Russian Meteorology and Hydrology》2013,38(7):509-514

The climatic habitat of the hazardous agricultural vermin, Colorado beetle, on the territory of Russia and neighboring countries is computed using the model agroclimatic methods. The meteorological dataset of daily resolution available on the website of All-Russian Research Institute of Hydrometeorological Information-World Data Center is used and the requirements of the species to the habitat climate accepted in agroclimatology are taken into account. The computations are carried out for three time periods: 1951–1970, 1991–2010, and 2031–2050. Climatic characteristics (average annual temperature and accumulated effective temperatures) of the third period were estimated by means of linear interpolation proceeding from the first two periods. It is demonstrated that the changes in climatic habitat boundaries of the second period as compared with the first and third periods and of the third period as compared with the second period have a common trend: the broadening of the habitat takes place in the northern and especially eastern directions. The computed data are corroborated by the observational data on the actual distribution of Colorado beetle on the territory of Russia and neighboring countries.  相似文献   

Experimental study of ZrO2(c) solubility in water and aqueous perchloric acid solutions at 150 and 250°C     

N. D. Shikina  O. N. Vasina  E. V. Gurova  E. S. Popova  B. R. Tagirov  Yu. K. Shazzo  I. L. Khodakovskii 《Geochemistry International》2014,52(1):82-87

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Behavior of lanthanides during the origin of mineralized domes: an example of the Spokoininskoe deposit,Transbaikalia     

Yu. A. Popova  S. S. Matveeva  A. Yu. Bychkov  M. E. Ternopol’skaya  Ya. V. Bychkova 《Geochemistry International》2017,55(2):211-217

The paper reports data on concentrations of lanthanides in rocks, fluorite, and wolframite from the Spokoininskoe greisen deposit in eastern Transbaikalia. Lanthanide concentrations in the ore-forming fluid are calculated using mineral/fluid distribution coefficients. The data on REE are consistent under the assumption of a single, but evolving, genetic source. The REE concentrations are similar for rocks variably affected by greisenization and are controlled by the solubility of monazite contained in the granite. The younger quartz–albite–muscovite veins and segregations contain elevated concentrations of LREE, which is explained by an increase in the monazite solubility in alkaline solutions during the late evolution of the fluid.  相似文献   

Oithona davisae: Naturalization in the Black Sea,Interannual and Seasonal Dynamics,and Effect on the Structure of the Planktonic Copepod Community     

Gubanova  A. D.  Garbazey  O. A.  Popova  E. V.  Altukhov  D. A.  Mukhanov  V. S. 《Oceanology》2019,59(6):912-919

Oceanology - Naturalization of the invasive copepod Oithona davisae is examined based on long-term (2003–2014) routine observations of zooplankton in Sevastopol Bay (the Black Sea). The study...  相似文献   

Regional structure of surface-air temperature fluctuations in northern Eurasia in the latter half of the 20th and early 21st centuries     

V. V. Popova  A. B. Shmakin 《Izvestiya Atmospheric and Oceanic Physics》2010,46(2):144-158

The first empirical orthogonal functions (EOF1s) of surface-air temperature fluctuations for Russia and its neighboring states within the period 1950–2005 are analyzed. The spatial distribution of the EOF1, the first principal components (PC1s) of the observed air temperature (averaged over the summer, July, December–March, and individual winter months), and their time variations (including trend parameters, some spectral characteristics, and the quantitative indices of relation to circulation indices (on the basis of multiple step-by-step regression)) are considered. Significant seasonal differences have been revealed: the winter air-temperature fluctuations are characterized by a higher (when compared to summer) spatial coherence, especially in the latitudinal direction. The EOF1 of the winter air temperature (averaged over December–March) describes its fluctuations for almost all of Russia; in this case, no less than 70% of the PC1 variability is due to variations in several circulation indices; the main contribution (60%) is made by both the North Atlantic Oscillation (NAO) and Scandinavian (SCAND) indices. On the whole, over the periods 1951–2005 and 1971–2005, the NAO contribution exceeds the SCAND contribution to the winter temperature variability; the NAO is associated with a more rapid increase in air temperature in 1968–1997 and with the 1971–2005 trend. In 1951–1970 the main contribution to air temperature fluctuations was made by SCAND; the SCAND contribution exceeds the NAO contribution in the periods 1951–2005 and 1971–2005. The 1971–2005 and 1968–1997 temperature trends are completely described by variations in the NAO (70%) and SCAND (30%) indices for January and February.  相似文献