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Sample records for zlatka trifonova jordanka

  1. Simulation of extreme ground water flow in the fractal crack structure of Earth's crust - impact on catastrophic floods

    NASA Astrophysics Data System (ADS)

    Bukharov, Dmitriy; Aleksey, Kucherik; Tatyana, Trifonova

    2014-05-01

    dimension. Formation of fractal cracks (in coupling of fault length and it number) ensures an optimal traveling network for propagation of water, but changes in external conditions can lead to the formation of hydroblow with extreme water flow formation on surface, i.e. a flash event arise. 3. The proposed approach allows to carry out the modeling in different spatial scales, to determine the features of hydrodynamic processes for generate extreme water flow, when it is going out on the land surface, and results in catastrophic water phenomenon development. 1. Trifonova T.A., Arakelian M.M., Arakelian S.M. European Geosciences Union General Assembly 2013, Vienna, Austria, 2013. http://www.egu2013.eu ; 2. Arakelian S.M., Trifonova T.A., Arakelian M.M. IGU Kyoto Regional Conference (KRC), Kyoto, Japan, 2013, www.igu-kyoto2013.org. 3.Trifonova T. A.. // Izv. RAS, series on geography, 2008, No.1, pp.28-36. 4. Kolmogorov A.N. //Bulletin of Soviet Academy of Science, 1941. V. 30, No.4. pp. 299-303. 5.Volynov M.A. // Fundamental research No.10. 2013, pp. 1676-1688. 6. Mandelbrot B.B. // Institute of computer research ISBN 5-93972-108-7 (2002).

  2. Peculiarities of high-altitude landscapes formation in the Small Caucasus mountains

    NASA Astrophysics Data System (ADS)

    Trifonova, Tatiana

    2014-05-01

    the permanent exogenic processes favor regular rejuvenation of the slope soils. The basin structure determines the soilscape, and morphological elements of the basin are also different. The factors playing the significant part in the formation of soil-mantle composition in the basin can be identified. It is shown that landscapes formation and soil structure in mountains are controlled by two superimposed natural processes, i.e. the formation of vertical zonality and the development of river lithodrainage basins. References Trifonova T.A., 2008. River drainage basin as self-regulated natural geosistem. Izv. Russian of Academy of Sciences, Series on geography, 1: 28-36. Trifonova T.A., 2005. Development of basin approach in pedological and ecological studies. Eurasian Soil Science, 9: 931-937

  3. Characterization of Ni-tolerant methylobacteria associated with the hyperaccumulating plant Thlaspi goesingense and description of Methylobacterium goesingense sp. nov.

    PubMed

    Idris, Rughia; Kuffner, Melanie; Bodrossy, Levente; Puschenreiter, Markus; Monchy, Sebastien; Wenzel, Walter W; Sessitsch, Angela

    2006-12-01

    Various pink-pigmented facultative methylotrophic (PPFM) bacteria (strains iEII3, iEIV1, iEI6, iEII1, iEIII3 iEIII4, iEIII5, iRII1, iRII2, iRIII1, iRIV1 and iRIV2) were obtained from the rhizosphere and endosphere of hyperaccumulating plant Thlaspi goesingense grown in Redschlag, Austria [R. Idris, R. Trifonova, M. Puschenreiter, W.W. Wenzel, A. Sessitsch, Bacterial communities associated with flowering plants of the Ni hyperaccumulator Thlaspi goesingense, Appl. Environ. Microbiol. 70 (2004) 2667-2677]. Due to their unexpected diversity, abundance and nickel tolerance they were further characterized by detailed 16S rRNA gene analysis, DNA-DNA hybridization, fatty acid analysis, heavy metal tolerance, screening for known Ni resistance genes and phenotypic analysis. These strains were found to exhibit different multiple heavy metal resistance characteristics to Ni, Cd, Co, Zn and Cr. On the basis of their physiological and genotypic properties, strains could be grouped with Methylobacterium extorquens and M. mesophilicum. One endophyte, strain iEII3, was found to belong to a novel species for which the name M. goesingense is proposed.

  4. Global and regional aspects for genesis of catastrophic floods - the problems of forecasting and estimates for mass and water balance (surface and groundwater contribution)

    NASA Astrophysics Data System (ADS)

    Trifonova, Tatiana; Arakelian, Sergei; Trifonov, Dmitriy; Abrakhin, Sergei

    2017-04-01

    these above events, for the 2013 Colorado flood (USA) ). 5. Thus, we believe that now is the time to have the transition from «surface view» - i.e. observable results by eye-witness and consequences of the water events, to «fundamental approach» - i.e. measured physical parameters during the continuous monitoring and possible mechanisms of their variation. References 1. Trifonova T.A., Akimov V.A., Abrakhin S.I., Arakelian S.M., Prokoshev V.G. Basic principles of modeling and forecasting of extreme natural and man-made disasters. Monograph, Russian Emercom Publ., 2014, - 436 p., Moscow. 2. Trifonova T., Trifonov D., Arakelian S. The 2015 disastrous floods in Assam, India, and Louisiana, USA: water balance estimation. Hydrology 2016, 3(4), 41; doi:10.3390/hydrology3040041. 3. Madeline B. Cotkowitz, John W. Attig, Thomas McDermott. Groundwater flood a river terrace in southwest Wisconsin, USA. Hydrogeology Journal. 2014. DOI 10.1007/s10040-014-1129-x.

  5. Influence of seismic processes and volcanic activity on the formation of disastrous floods

    NASA Astrophysics Data System (ADS)

    Trifonov, Dmitriy

    2014-05-01

    rule, on a scale from 1.3 to 3.5 thousand km with the ratio of magnitude to the distance from 1.7 to 3.8 points to thousand km. For further study and zoning potentially dangerous areas, further research is needed for each particular area, taking into account, for example, the properties of the stress distribution medium, and also peculiarities of hydrological conditions on the affected territories. 1. Arakelian S.M., Trifonova T.A., Arakelian M.M. Surface and subterranean water interaction in catastrophic flood and mudflow for a river mountain basin: basic principles for risk assessment. IGU Kyoto Regional Conference (KRC), Kyoto, Japan, 2013, www.igu-kyoto2013.org. 2. Lin J.-Y., Wu W.-N. Spatio-temporal distribution of seismic moment release near the source area of the 2011 Tohoku-Oki earthquake // Earth, Planets and Space. 2012. Vol. 64. No. 12. P. 1067-1075. 3. Mitsui Y., Iio Y., Fukahata Y. A scenario for the generation process of the 2011 Tohoku earthquake based on dynamic rupture simulation: Role of stress concentration and thermal fluid pressurization // Earth, Planets And Space. 2012. Vol. 64. No. 12. P. 1177-1187.