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Документ Changes in the level of the Black Sea (NW Black Sea region) in today's climate change(Astroprint, 2011) Lykhodedova, Olha H.Monitoring of the Black Sea level conducted since 1876 showed its drop with a speed 0.14 cm / year in the 20s of the XX century (first period) that was exchanged for its rise with a speed 0.35 cm / year (second period). Accordingly, sea level dropped in average 6.5 cm during first period and rose in 26 cm in course of the second period. The amplitude of sea level change is 37 and 50 cm, respectively. The change of sea level was mainly defined by river discharge, precipitation, evaporation, as well as water exchange with Mediterranean and Azov seas (Альтман, 1990). Changing these parameters in turn is related to changes in both regional and global climatic conditions.Документ CLIMATE, RIVER DISCHARGE AND SEA-LEVEL CHANGES DURING THE PERIOD OF INSTRUMENTAL OBSERVATIONS(Rosselkhozakademiya Printing House, 2007) Lykhodedova, Olha H.; Konikov, Yevhenii G.In actuality, the study of the dynamics of Black Sea level has implications for the development of the coastal zone, as well as economic and ecologic issues. The longest period of instrumental observations of sea-level (Odessa) spans 140 years (beginning in 1876). The majority of investigators hols a view of eustatic character of Black Sea level changes during the period of interest (Fomicheva 1986; Altman 1990). A significant role is attributed to the discharge of freshwater (fluvial, atmospheric precipitation) into the Black Sea. The leading role in this influx is the fluvial water discharge in the northwestern part of the basin - Danube, Dnieper, and Dniester (approximately 85% of the total discharge).Документ Comparison of the sea level fluctuations in the Atlantic Ocean, Mediterranean and Black Seas for the last 100 years(Astroprint, 2011) Yanko-Hombach, Valentyna V.; Lykhodedova, Olha H.; Larchenkov, Yevhenii P.; Янко-Хомбах, Валентина Венедиктовна; Янко-Хомбах, Валентина Венедиктівна; Лиходедова, Ольга Георгиевна; Лиходідова, Ольга Георгіївна; Ларченков, Євген Павлович; Ларченков, Евгений ПавловичThere is no consensus about the mode by which sea level changed in the Black Sea during the Holocene(Yanko-Hombach, 2007). Some scientists (e.g., Balabanov, 2007; Yanko-Hombach,2007)suggest that Black Sea level changes occurred in an oscillatory manner,while others (e.g., Pirazzoli, 1991; Bruckner et al., 2010) challenge this.In their opinion,the sea-level changes in the Black Sea cannot be different from those that occurred in the World Ocean in general, and the Mediterranean Sea in particular.This paper focuses on the comparison between sea-level fluctuations deduced from instrumental observations in the Atlantic Ocean, Mediterranean,and Black Sea during the last 100 years.The main goal is to show how(but not why!)the Black Sea level has behaved most recently.We understand perfectly that geological time is not comparable with that of the period of instrumental observations. However,it is probable that the behavior of the Black Sea level in recent time and in the geological past could show similar patterns but on a different scale.Документ Condition of the Kerch Strait ecosystem two years after the disaster of winter 2007: Preliminary results(S.n., 2010) Kovalyshyna, S. P.; Lykhodedova, Olha H.; Komorin, V.; Matygin, A.; Ukrainsky, V.; Den'ga, Yu.; Матыгин, А.; Янко-Хомбах, Валентина Венедиктовна; Янко-Хомбах, Валентина Венедиктівна; Ковалишина, С. П.; Ковалишина, С, П.; Коморін, В.; Коморин, В.; Матигін, А.; Украинский, В.; Український, В.; Деньга, Юрий М.; Деньга, Юрій М.; Лиходедова, Ольга Георгиевна; Лиходідова, Ольга Георгіївна; Yanko-Hombach, Valentyna V.Kerch Strait is situated between the Kerch Peninsula of Crimea and the Taman Peninsula of the Kuban; it joins the Black Sea and the Sea of Azov. Its length is 41 km; its width, 4-15 km; and its depth, 5-13 m. The strait is an important navigation route. Increasing ship transportation activities, with up to 40 vessels per day, provide for a high risk of vessel accidents in the strait, and this is compounded by the type of cargo being transported. This puts a heavy burden on marine ecosystems and increases ecological risks to biotaДокумент Evaluating the influence of river discharge on marine benthic ecosystems using benthic foramanifera and lithology as the main tools(Nafta-Press, 2014) Yanko-Hombach, Valentyna V.; Kondariuk, Tetiana O.; Lykhodedova, Olha H.; Akindinova, O. V.; Motnenko, Irena; Янко-Хомбах, Валентина Венедиктовна; Янко-Хомбах, Валентина Венедиктівна; Кондарюк, Тетяна Олегівна; Кондарюк, Татьяна Олеговна; Мотненко, Ірена; Мотненко, Ирэна; Лиходедова, Ольга Георгиевна; Лиходідова, Ольга Георгіївна; Акіндінова, А. В.; Акиндинова, А. В.River discharge has a significant impact on marine environment through its effect on the salt balance of the thermohaline structure and convection circulation of the water masses. Being enriched in the various organic and inorganic compounds, river flow is actively involved in biological processes and sedimentation, affecting the equilibrium state of the benthic ecosystems. Spatial distribution of river flow in the marine environment depends on meteorological and hydrological conditions that are characterized by inter-annual variability and varying proximity to the source. Coastal areas located in the confluence of major rivers experience the strongest impact of freshwater discharge. The northwestern shelf of the Black Sea—where the second largest river in Europe, the Danube, discharges annually 190.7 knf and 51.7 million tonnes of liquid and solid waste, respectively (Bondar et al., 1991; Panin, 1996), is a good example of such areas. Tracing the spatial distribution of river water into the sea and assessing its impact on benthic ecosystems have important theoretical and practical significance, both for understanding the causes affecting their balance, and for the development of methods and approaches to maintain their stability. Therefore, the choice of a reliable group of organisms as indicators of river discharge into the sea has primary significance. Such organisms should be benthic, small in size, and abundant (for population statistics), have a short life cycle, and be well preserved after death.Документ Modeling of centennial Black Sea level changes as a basis for forecasting(Astroprint, 2006) Lykhodedova, Olha H.; Konikov, Yevhenii G.The statistical parameters that characterize sea-level regime along the NW Black Sea have been calculated and analyzed.Monthly and yearly averages of sea level position for the 1876-2002 observation period (Odessa station) were used to study fluctuations in sea level.We performed spectral (Fourier Transform) and frequency-temporal (Wavelet) analyses of time domains, which characterize the level changes in the study region.The cross- correlation analysis of sea-level regime and water balance was also included in the study.We compared the low-frequency elements of water-level regime with factors that characterize climate changes in the Northern Hemisphere in the 20th century. Wavelet analysis provides wide possibilities for investigating time-domain periodicity. The basis of this method was generated in the mid 1980s by Grossman and Morle as an alternative to Fourier transform to be used for temporal/spatial domains with expressed heterogeneity. Wavelet transform divides the analyzed process into its constituent waves and components of various scales, and also provides time-specific process information.Документ Sea-Level fluctuations in the Black and Caspian Seas and Global Climate Change(S.n., 2008) Lykhodedova, Olha H.; Konikov, Yevhenii G.The Earth's climate is an extremely difficult nonlinear system with numerous feedbacks, the dynamics of which are not obvious. Many publications contain inconsistent opinions concerning the causes of global warming. A central place in these discussions is occupied by the question of the anthropogenic factor as a principal cause of the greenhouse effect, which lies at the root of global warming. Some authors argue that anthropogenic influences are already acting as the dominant warming factor (Meleshko, 2007). Contrary to this opinion, the influence of greenhouse gases on climate change has not yet been proven (Yegorov, 2007; Datsenko and Monin, 2006; Boichenko and Voloschuk, 2006).Документ Was the Black Sea catastrophically flooded in the Early Holocene - a new perspective from the large scale geological survey of the northwestern shelf(S.n., 2010) Yanko-Hombach, Valentyna V.; Kadurin, Serhii V.; Larchenkov, Yevhenii P.; Lykhodedova, Olha H.; Kakaranza, S. D.; Янко-Хомбах, Валентина Венедиктовна; Янко-Хомбах, Валентина Венедиктівна; Караканза, С. Д.; Кадурін, Сергій Володимирович; Кадурин, Сергей Владимирович; Ларченков, Евгений Павлович; Ларченков, Євген Павлович; Лиходедова, Ольга Георгиевна; Лиходідова, Ольга ГеоргіївнаWas the Black Sea catastrophically flooded in the Early Holocene or not? This question has been hotly debated since Ryan et al. (1997) first proposed their hypothesis of a catastrophic inflow of Mediterranean seawater into a Black Sea freshwater lake (locally called the Neoeuxinian Lake) at 7.2 ka BP. This hypothesis claimed that a massive inundation of the Black Sea basin and ensuing large-scale environmental changes drastically impacted early societies in coastal areas, forming the basis for Great Flood legends and other folklore, and accelerating the spread of agriculture into Europe. This scenario (called here the "Flood Hypothesis") was widely publicized and discussed in the general media. In response to criticism, and based on reevaluation of old data as well as new data, the authors of the Flood Hypothesis pushed the date of their inundation back 1200 years to 8.4 ka BP (Ryan et al. 2003). Instead of a single inundation, two lowstands (-120 m at 13.4—11.0 ka BP; and -95 m at 10.0-8.4 ka BP) and two catastrophic floods (sea-level rise from -120 to -30 m at 11.0-10.0 ka BP; and from -95 to -30 m at 8.4 ka BP) were proposed. The second of these two major transgressions was labeled the Great Flood. The initial Flood Hypothesis was based on evidence from seven short (about 1.25 m each), low- resolution sediment cores and 350 km of seismic profiles collected within a fairly restricted area of the Black Sea's NW shelf at water depths between 49 and 140 m during a single mission in 1993.Документ Изменение уровня в Атлантическом океане, Средиземном и Черном морях в столетнем цикле(2013) Янко-Хомбах, Валентина Венедиктовна; Yanko-Hombach, Valentyna V.; Янко-Хомбах, Валентина Венедиктівна; Лиходідова, Ольга Георгіївна; Ларченков, Евгений Павлович; Ларченков, Євген Павлович; Larchenkov, Evgen P.; Larchenkov, Yevhenii P.; Lykhodedova, Olha H.; Лиходедова, Ольга ГеоргиевнаЦель работы состояла в установлении сходства и различия колебаний уровня в Атлантике, Черном и Средиземном морях. Очевидно, что сравниваемые морские бассейны существенно различаются как по своим параметрам (площадь, объем, глубина), так и по факторам, формирующих их водный режим, в то же время, они находятся под действием общих факторов глобального характера, влияющих на изменение уровня.Документ Оценка влияния речного стока на морские донные экосистемы по бентосным фораминиферам и литологии донных осадков(ОМГОР НАН Украины, 2014) Янко-Хомбах, Валентина Венедиктовна; Кондарюк, Татьяна Олеговна; Лиходедова, Ольга Георгиевна; Мотненко, Ирэна; Yanko-Hombach, Valentyna V.; Янко-Хомбах, Валентина Венедиктівна; Кондарюк, Тетяна Олегівна; Kondariuk, Tetiana O.; Лиходідова, Ольга Георгіївна; Lykhodedova, Olha H.; Мотненко, Ірена; Motnenko, IrenaВ рамках международного проекта BSERA.NET 076 «Water pollution prеvеntion options for сoastal zonеs and tourist arеas: Appliсation to thе Danubе Delta front arеa», WAPCOAST (2010—2012 гг.) впервые в Европе представлены результаты исследований по использованию бентосных фораминифер и литологии донных осадков для оценки влияния пресного стока Дуная на донные экосистемы румынского шельфа Черного моря. Установлено 15 видов фораминифер. Их количественные показатели и перестройка структуры комплексов, скоррелированные с серией гидрологических и геохимических параметров придонной толщи воды и донных осадков, включая их гранулометрический состав, позволяют установить три главных фактора, влияющих на состояние донных экосистем. К ним относятся: (1) расстояние от берега и сопутствующие ему параметры (глубина, соленость, прозрачность, температура); (2) эвтрoфикация придонной толщи воды и (3) ее загрязнение органикой, принесенной с континента. Бентосные фораминиферы в совокупности с литологией донных осадков позволяют оценить степень влияния этих факторов на донные экосистемы и проследить распространение пресных вод Дуная у дна бассейна.