551.465On the basis of the analysis of the archival data, we reveal some regularities of the interannual and seasonal variations of the parameters of atmospheric transport, winds, air temperature, the amount of atmospheric precipitation in the Kerch region, the temperature of water in the Kerch Strait, and the water discharge through the strait observed for about the last two decades. It is shown that the intensities of the southeast atmospheric transport and wind activity predominant for the previous 30-yr period decreased for the analyzed time period as compared with the previous period, whereas the amount of atmospheric precipitation and the annual average temperatures of water in the strait and air in the Kerch region increased. We also reveal the presence of direct qualitative relationship between the intensity of atmospheric transport over the Kerch Strait and the water discharge in its water area.The water area of the Kerch Strait and the parts of the seas neighboring with this area are regarded as especially ecologically unfavorable regions of the Azov-Black-Sea basin. The powerful anthropogenic influence permanently increasing in this region strongly affects numerous important components of the ecosystem of the strait, such as the system of currents, water exchange, vertical stratification of waters, ice conditions, hypoxia, migration of commercial fishes, and their mass death. The above-mentioned problems and various aspects of these problems are now discussed in numerous works (see, e.g., [1][2][3][4][5][6]).The problems analyzed in the present work deal with poorly studied components of the ecological complex of the Kerch region. Thus, we consider the current state and time dependences of the principal meteorological elements of the region, as well as the temperature of water and its discharge through the Kerch Strait.Note that regular instrumental measurements of currents in the Kerch Strait aimed at the evaluation of the water discharge through its northern narrow neck are not performed for the last two decades. The absence of any data about the discharge and the impossibility of its direct evaluation at present make the solution of various practical and scientific problems quite complicated. In this connection, we make attempt to reveal the relationship between the water discharge through the Kerch Strait and the atmospheric transport over its water area.
Material and MethodAt the beginning of the 1990s, the following significant changes were recorded in the interannual course and seasonal variations of the hydrometeorological characteristics of the analyzed region (note that these changes were not recorded earlier): the intensity of the predominant southeast atmospheric transport and wind activity decreased, the amount of precipitation increased, the annual average temperatures of water in the strait
По результатам серии экспедиций, проведенных сотрудниками Морского гидрофизического института, впервые получены представления об источниках и структуре поля концентрации растворенного органического вещества в водах Азовского моря и Керченского пролива. Показано, что основной природный источник этого вещества в Азовском море связан с речным стоком, в Керченском проливес подповерхностными водами Черного моря. На преобладающей части акватории Азовского моря характерная концентрация растворенного органического вещества, определенная нами на основе оптических методов, оказалась на порядок ниже имевшихся расчетных оценок. В Керченском проливе в поле растворенного органического вещества выявлен фронтальный раздел, который совпадает с основным термохалинным фронтом, разграничивающим взаимодействующие азовоморские и черноморские воды.
Based on results of several expeditions, carried out in 2001-2014, ideas about the total suspended matter (TSM) sources were obtained. The main features of the TSM concentration field structure in the Kerch Strait waters were revealed. It was shown, that the natural TSM field is being significantly distorted by anthropogenic impact. The most significant anthropogenic TSM sources include the operating ports on the Kerch Strait and in the Sea of Azov shores, industrial enterprises, sewage collectors, cargo terminals and landfill sites. The spatial scale of their effect was estimated. It was found, that the waters with excess TSM content are also saturated by dissolved organic matter (DOM) of anthropogenic origin. In the Kerch Strait, a frontal section in the TSM concentration field was found. It was revealed that depending on the Strait waters pollution degree the frontal section in the TSM field content cannot always be sufficiently viewed. It changes shape, shifts relative to thermohaline front and sometimes changes the horizontal gradient sign. It is found that the Black and the Sea of Azov waters have qualitatively different signs of total suspended matter vertical stratification. The Sea of Azov waters, unexposed to anthropogenic impact are characterized by non-monotonic TSM distribution. The TSM streams from the Sea of Azov contain the lenses of high TSM content, which alternate with the lenses of low TSM content.
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