scholarly journals Features of territorial organization of population resettlement of the coastal strip of the Ukrainian Black Sea Region

2019 ◽  
Vol 28 (4) ◽  
pp. 747-756
Author(s):  
Vitaliy A. Sych ◽  
Victoria V. Yavorska ◽  
Igor V. Hevko ◽  
Katherine V. Kolomiyets ◽  
Inna M. Shorobura
Keyword(s):  
Coastal Zone ◽  
Black Sea ◽  
Economic Activity ◽  
Wide Distribution ◽  
Distribution Functions ◽  
Urban Settlement ◽  
Black Sea Region ◽  
Large Cities ◽  
Urban Settlements ◽  
Territorial Structure

This article deals with the features of population settlement within the Ukrainian Black Sea region and its coastal zone. It is emphasized that the problems of coastal resettlement, the factors that determine it, are highlighted in the works of foreign and Ukrainian scientists. The purpose of the work is to find out the features of the population settlement in the region of the Ukrainian Black Sea region. In the studied region, due to the territorial differentiation of economic activity, change in the intensity of economic use of the territory and the population density can be distinguished by the coastal, middle and peripheral economic zones. It was established that the supporting framework of urban settlement in the Ukrainian Black Sea region is characterized by a fairly sparse network, and the settlement process itself is in many respects still in the stage of formation, incompleteness. Unlike the whole region, for the coastal zone, the more prevalent network of urban settlements, which are represented within the coastal zone not only by small and medium, but also large cities (Odesa, Mykolaiv, Kherson), has contributed to the formation of urban agglomerations with wide distribution functions. In the zones of attraction of large cities, a new type of settlement was formed - in fact, suburban. In the Odesa metropolitan area, there are two powerful, fast-developing planning axes - Odesa- Chornomorsk and Odessa-Yuzhne. Seaside-facade linear planning organization agglomeration repeats the restructuring of the territorial structure of Odesa itself, which in the second half of the twentieth century turned from a city with a compact building pattern into a linear city, stretching along the sea bay. In the coastal zone of the Ukrainian Black Sea region, which occupies one third of the region’s area, live 65.0% of the total number of inhabitants of the region. The density of urban settlement network here is 1.5-2.0 times higher than the average indicators of the region, urban processes in the coastal zone are characterized by greater intensity. Small cities of the coastal zone in genetic typing are mainly seaport cities, urban-type settlements, and resort and recreation in character. More than 40% of the rural population is concentrated in the coastal regions and tends to agglomeration, which, in its turn, causes a steady flow of  the settlement network from areas remote from the centers of economic activity. In the last 5 years, the demographic situation, both  in the region as a whole and in the coastal zone, has deteriorated significantly, and here, as in other districts, depopulation is evident. The prospects for the development of the coastal resettlement system are directly related to the further intensification of maritime and recreational activities, and, first of all, with the development of recreational, tourist and port infrastructure.

scholarly journals The spatial pattern of selected extreme precipitation indices for Turkey (1975-2012)

2020 ◽  
Vol 19 (1) ◽  
pp. 19-30
Author(s):  
Faize Sarış
Keyword(s):  
Coastal Zone ◽  
Black Sea ◽  
Extreme Precipitation ◽  
Precipitation Extremes ◽  
The Black Sea ◽  
The South ◽  
Black Sea Region ◽  
North East ◽  
The North ◽  
Rainy Days

AbstractThis paper analyses extreme precipitation characteristics of Turkey based on selected WMO climate change indices. The indices – monthly total rainy days (RDays); monthly maximum 1-day precipitation (Rx1day); simple precipitation intensity index (SDII); and monthly count of days when total precipitation (represented by PRCP) exceeds 10 mm (R10mm) – were calculated for 98 stations for the 38-year overlapping period (1975–2012). Cluster analysis was applied to evaluate the spatial characterisation of the annual precipitation extremes. Four extreme precipitation clusters were detected. Cluster 1 corresponds spatially to Central and Eastern Anatolia and is identified with the lowest values of the indices, except rainy days. Cluster 2 is concentrated mainly on the west and south of Anatolia, and especially the coastal zone, and can be characterised with the lowest rainy days, and high and moderate values of other indices. These two clusters are the most prominent classes throughout the country, and include a total of 82 stations. Cluster 3 is clearly located in the Black Sea coastal zone in the north, and has high and moderate index values. Two stations on the north-east coast of the Black Sea region are identified as Cluster 4, which exhibits the highest values among all indices. The overall results reveal that winter months and October have the highest proportion of precipitation extremes in Turkey. The north-east part of the Black Sea region and Mediterranean coastal area from the south-west to the south-east are prone to frequent extreme precipitation events.

scholarly journals On river plumes along the Turkish coast of the Black Sea

2019 ◽  
Vol 25 ◽  
pp. 63-78
Author(s):  
Andrey G. Kostianoy ◽  
Sergey A. Lebedev ◽  
Dmitry M. Soloviev ◽  
Yalcin Tepe
Keyword(s):  
Coastal Zone ◽  
Black Sea ◽  
River Runoff ◽  
Sea Water ◽  
Water Levels ◽  
The Black Sea ◽  
River Plumes ◽  
Large Cities ◽  
Black Sea Coast ◽  
Heavy Rains

Heavy rains have become a serious problem for the coastal zone of the Krasnodar Territory of the Russian Federation and the Black Sea coast of Turkey. They lead to a significant increase in water levels in rivers, flooding of villages and even large cities, damage to urban and tourist infrastructure, roads and railways, bridges, beaches, flushing of garbage and sewage into rivers. This leads to environmental problems and even loss of life. River runoff forms river plumes in the coastal zone of the sea, which, depending on wind speed and direction, speed and direction of coastal currents, river runoff and density difference with sea water, can have various forms and spread in different directions from the mouth of the river, as well as participate in mesoscale and sub-mesoscale circulation of coastal waters. River plumes significantly affect the quality of sea water and the sanitary and epidemiological situation on the beaches of the resort area of Krasnodar Territory and Turkey. The situation is aggravated by the fact that sewage systems are in poor condition in cities or are completely absent in most of small villages along rivers and the coastal zone. After heavy rains, wastewater very often reaches the sea and poses a serious threat to human health. The purpose of this study is to use satellite remote sensing to demonstrate the behavior of river plumes along the Black Sea Turkish coast.

Wind-wave conditions of the coastal zone of the Azov-Black Sea region

2017 ◽  
Author(s):  
V.P. Evstigneed ◽  
◽  
V.A. Naumova ◽  
E.N. Voskresenskaya ◽  
M.P. Evstigneev ◽  
...  
Keyword(s):  
Coastal Zone ◽  
Black Sea ◽  
Wind Wave ◽  
Black Sea Region ◽  
Wave Conditions

Tsunami vulnerability along the western Bulgarian Black Sea coast - from the historical review towards multidisciplinary assessment approach

2021 ◽  
Author(s):  
Lyubka Pashova ◽  
Liliya Dimitrova ◽  
Emil Oynakov ◽  
Vasko Galabov
Keyword(s):  
Risk Assessment ◽  
Coastal Zone ◽  
Black Sea ◽  
Tsunami Hazard ◽  
The Black Sea ◽  
Black Sea Region ◽  
Tsunami Modelling ◽  
Black Sea Coast ◽  
Hazard And Risk ◽  
Sea Coast

<p>Over the last two decades, in line with the global trend of expanding research into natural hazards and disaster risk reduction, the tsunami hazard and risk assessment along the coast of Europe has become a hot topic of research. In all its aspects, tsunami research includes the study of tsunami documentary evidence, historical data collection, field experiments, laboratory research, theoretical numerical and analytical modelling, and in-depth analysis of recent tsunami events. Tsunami modelling research methodologies and holistic approaches to risk assessment are continually being improved. Researches are directed to develop conventional standardised methods to analyse tsunami hazard and risk with associated uncertainties, aiming to reduce possible adverse effects on potentially vulnerable coastal settlements, coastal and marine infrastructures and natural ecosystems.</p><p>In the Black Sea, dangerous tsunami waves are a relatively rare phenomenon that cannot be forecast. Multidisciplinary studies focused on mapping and dating past events on the Black Sea coast, determining the causes, frequency of recurrence, and current prospects for tsunamis occurrence (risk) are not yet fully clarified or are in their infancy. Moreover, tsunami hazard along the Bulgarian coast is poorly understood and not considered in the National methodology for flood hazards and risk in the coastal zone. Numerical tsunami modelling performed in recent years for the region still needs to be improved. These events are relatively rare, few such cases have been documented, and validation data are scarce or missing.</p><p>This study provides a comprehensive inventory of tsunami sources from scientific publications, model studies of tsunami generated waves carried out during the recent years and an analysis of the results from recently established early warning systems in the Black Sea region. For the Bulgarian coastal zone, the results of studies of active faults with tsunamigenic potential in and around vulnerable coastal zones, available registrations at sea level during seismic events and some extreme meteorological events for the last century are summarized. A near-field and far-field tsunami sources that can generate tsunamis and affect the Bulgarian coastline are briefly reviewed. High-resolution data are needed for more credible tsunami numerical modelling for the western Black Sea region. Preliminary studies of the available datasets regarding Digital Elevation Model (DEM) and bathymetry for specific locations along the coastal zone are presented as well the needed accuracy and completeness of the data. Some consideration regarding the available and newly establish research infrastructure in the western Black Sea are also discussed.</p><p><strong>Acknowledgements:</strong><strong> </strong>The authors would like to thank the Bulgarian National Science Fund for co-funding the research under the Contract КП-СЕ-КОСТ/8, 25.09.2020, which is carried out within the framework of COST Action 18109 “Accelerating Global science In Tsunami HAzard and Risk analysis” (AGITHAR; https://www.agithar.uni-hamburg.de/).</p>

scholarly journals Composition and distribution of macrophytobenthos near the coast of Tarkhankut Peninsula (The Black Sea, Crimea)

Algologia ◽  
2021 ◽  
Vol 31 (3) ◽  
pp. 249-270
Author(s):  
S.Yu. Sadogurskiy ◽  
◽  
S.O. Sadogurska ◽  
T.V. Belich ◽  
Keyword(s):  
Coastal Zone ◽  
Black Sea ◽  
The Black Sea ◽  
Anthropogenic Pressure ◽  
Black Sea Region ◽  
High Productivity ◽  
Number Of Species ◽  
Coastal Marine ◽  
Sublittoral Zone ◽  
Marine Areas

The data on the composition and distribution of macrophytobenthos of marine and lagoon water areas of the Black Sea coastal zone in the west of the Tarkhankut Peninsula in the summer season are presented. It is shown that the occurrence and general characteristics of the vegetation cover are determined by the type of substrate. In the sea (where hydrological conditions are relatively homogeneous), the ratio of ecological-floristic groups and the species composition change with distance from the coast and along with it, depending on the depth and geomorphological features of coastal zone fragments. In the lagoon, the ratio of such groups changes along the complex gradient of environmental factors, formed by the groundwater runoff of fresh and marine waters. Within the surveyed area, 91 species of macrophytes were registered: Tracheophyta – 1 species (1.1%), Chlorophyta – 23 (25.3%), Ochrophyta (Phaeophyceae) – 21 (23.1%), and Rhodophyta – 46 (50.5%). Of these, 87 species were recorded in the sea (including 44 in the pseudolittoral zone and 81 – in the sublittoral zone). The macrophytobenthos has a pronounced marine oligosaprobic character. Short-vegetation Rhodophyta dominate by the number of species, and perennial Phaeophyceae dominate by biomass, reaching 1 kg∙m-2 in the pseudolittoral and almost 7 kg∙m-2 in the sublittoral. In the lagoon, 18 species of macrophytes were registered (4 exclusively in the lagoon). Mesosaprobic short-vegetation Rhodophyta dominate by the number of species; marine and brackish-water macrophytes are equally represented. Polysaprobic perennial Tracheophyta, which belong to the marine group, dominate by biomass, which is ranging from 0.04 to 1.2 kg∙m-2. It was found that at the time of the research, the macrophytobenthos of the surveyed area was characterized by high productivity, high species, and coenotic diversity. There were taxa and biotopes, which are subject to special protection under regional and international programs. In general, the nature of the vegetation, the composition of the flora and the ratio of the main ecological-floristic indicators corresponded to those indicated for the Tarkhankut-Sevastopol hydrobotanical region of the Black Sea. Considering the sozological value, the aquatic component of the territorial-aquatic complex was recommended for conservation and inclusion in the ecological networks (incl. the Emerald Network). The increased anthropogenic pressure and the threat of the coastal zone transformation actualize the problem of its conservation as one of the key reserves of the floristic and biotopic diversity of coastal-marine areas in the Northern Black Sea region.

scholarly journals Non-stationary statistical estimation of wind speeds of rare recurrence in the Azov and Black Sea region

2021 ◽  
pp. 15-22
Author(s):  
V.P. Evstigneev ◽  
◽  
V.A. Naumova ◽  
N.A. Lemeshko ◽  
◽  
...  
Keyword(s):  
Wind Speed ◽  
Black Sea ◽  
Statistical Estimation ◽  
Extreme Values ◽  
Distribution Functions ◽  
Statistical Distribution ◽  
Black Sea Region ◽  
Wind Speeds ◽  
Extreme Wind ◽  
Extreme Wind Speeds

In the paper statistical distribution of the highest wind speed per year in the Azov and Black Sea region was analyzed using the data of 33 meteorological stations for 1958-2013. A statistical estimation of the wind speed extremes was carried out by approximation of the empirical sample with a function of Generalized distribution of Extreme Values (GEV) and by extrapolating it to the low probabilities region. We used two methodologies and applied statistical distribution functions corresponding to them. The first method is based on the assumption of stationarity of parameters of the GEV function. The second one is based on the non-stationary assumption of time dependence of extremum localization parameter μ. It was found, that for 13 out of 33 stations of the region, non-stationary GEV-function turned out to be adequate to describe extreme wind speeds.

scholarly journals ANALYTICAL ESTIMATION OF SOCIO-ECONOMIC DEVELOPMENT OF THE BLACK SEA REGION

2021 ◽  
Author(s):  
Olena Ivanenko ◽  
Myron Zhuravel
Keyword(s):  
Economic Development ◽  
Black Sea ◽  
Economic Activity ◽  
Climatic Conditions ◽  
Retail Trade ◽  
Motor Vehicles ◽  
The Black Sea ◽  
Black Sea Region ◽  
Socio Economic Development ◽  
Analytical Estimation

The article analyzes the level of socio-economic development of the Black Sea region, which is determined by the structure of the economy, which has a direct impact on the dominance of a particular type of economic activity. A statistical analysis of the structure of the economy of the Black Sea region on the basis of grouped data by type of economic activity for the period 2013-2019 by indicators: the number of enterprises; number of employees at enterprises; pre-tax financial results; volume of sold products (goods, services) of enterprises. The rating assessment of types of economic activity of the regions of the Black Sea region according to the structure of the Classifier of Types of Economic Activity in 2019 is constructed. The priority types of economic activity of the regions of the region are revealed. Particular attention is paid to cost indicators that characterize the volume of production and income of enterprises in the region, the definition of factors that affect the development of each activity in the region. This is necessary because the description of the structure of the region's economy for each of these indicators will be different, and this necessitates a comparison of the structure of the economy of regions located in the same natural and climatic conditions, similar in historical development with the same administrative-territorial division. The results of the structural analysis showed that the dominant classifiers of economic activity in the Black Sea region are agriculture, forestry and fisheries; wholesale and retail trade and repair of motor vehicles and motorcycles; industry; transport, warehousing, postal and courier activities. At the same time, a significant share of agriculture, forestry and fisheries in Mykolayiv and Kherson oblasts significantly exceeds the rest in terms of the number of enterprises in the industry and employees. Kherson region is also significantly distinguished by the financial results of enterprises in the region, which receive income from agriculture at the level of 67.7%. In the Odessa region, the transport industry prevails, namely logistics and warehousing. Thus, it can be argued that the Black Sea region has significant development potential in priority areas.

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