scholarly journals Methodological approaches to the study of cyclonic systems related to different types of intense storms in the North Black Sea region

2020 ◽  
pp. 05-14
Author(s):  
V.N. Maslova ◽  
◽  
E.N. Voskresenskaya ◽  
A.V. Yurovsky ◽  
V.Yu. Zhuravsky ◽  
...  
Keyword(s):  
Black Sea ◽  
Mixed Type ◽  
Spline Interpolation ◽  
The Black Sea ◽  
Central Type ◽  
Black Sea Region ◽  
North East ◽  
The North ◽  
Black Sea Coast ◽  
Sea Coast

The aim of the paper is to study the surface and mid – tropospheric synoptic fields, the location of trajectories and of the deep cyclones centers for different selected types of storm for the cases if the wave heights are of at least 5 m. The sets of cyclone parameters in the Black Sea region were analysef within the 37°-50° N, 27°-45° E. Cyclones and their main parameters were determined using 4-term NCEP / NCAR reanalysis data sets on the 1000 and 500 hPa geopotential height (GPH) in 1951-2017. Bardin’s methodology was used for calculation. Deep cyclones were identified by the criterion of exceeding the upper 75% quartile threshold of the depth (≥40 gpm) and intensity (≥16.8 gpm) of cyclones. It was done by analogy with the method used earlier by the authors to calculate extreme precipitation and statistical characteristics of storms. In addition, we used the author’s method of objective tracking using spline interpolation on the bases of sea surface pressure from the same NCEP / NCAR reanalysis. The reason to apply an additional method was the result obtained during the work realisation: about 30% of extreme storms in the region are caused by small local cyclones that occur over the Black sea. however, some of them cannot be determined using method 1 due to the coarser step of isogyps. As a result, the distribution of deep cyclone centers and their trajectories of different storm types at the Northern Black Sea coast for the cases if the wave height of at least 5 m is shown. It is found that storm types depend of synoptic field features. The centers of deep cyclones are concentrated to the North from the Black Sea coast (for Western type 1B), to the Northwest (for mixed type 2A), to the North-East (for mixed type 2B), and to the South-Eeast (for Central type 3).

Architecture of One-Apsidal Churches of North Black Sea Coast VI-XII c.

2018 ◽  
Vol 931 ◽  
pp. 790-796
Author(s):  
Viktoria V. Pishchulina
Keyword(s):  
Black Sea ◽  
The Black Sea ◽  
Byzantine Empire ◽  
Black Sea Region ◽  
The North ◽  
Black Sea Coast ◽  
The Crimea ◽  
The One ◽  
Sea Coast

A one-apsidal hall church is always a reflection of so-called “vulgar” Christianity, thus revealing the important peculiarities of the spatial culture of the region where it is erected. In this region we can mark two periods when such temples were built: VI-VII c. and X-XII c. The first period is associated with the missionary activity by Byzantine Empire, Antioch, Caucasian Albania which was conditioned by both geopolitical interests (Byzantian Empire, Antioch) and the shift of The Great Silk Way to the north (Caucasian Albania). The second, as the research has shown, is connected with the migration of the peoples of Abkhazia, the abzakhs to this territory in the XII-XIII c. and the development of contacts with the Crimea. In the North Black Sea Region the one-apsidal hall church appears as early as in the VI c. – in the territory of Abkhazia we know about ten such temples. The temples of this type in the area of Big Sochi are dated back to the VII-VIII c. In the first Abhzaian temples we can reveal the influence of denominational centers – Byzantian Empire, Antioch, Caucasian Albania. In the temples of the Black Sea coast of both periods – introduction of the samples from Abkhazia.

Influence of Currents and Atmospheric Circulation on the Efficiency of European Anchovy Fishing during its Wintering off the Black Sea Coast of the Krasnodar Territory

2021 ◽  
Author(s):  
B. N. Panov ◽  
E. O. Spiridonova ◽  
◽  
Keyword(s):  
Black Sea ◽  
Atmospheric Transport ◽  
Mesoscale Eddy ◽  
The Black Sea ◽  
Short Term ◽  
European Anchovy ◽  
The North ◽  
Daily Data ◽  
Black Sea Coast ◽  
Sea Coast

Russian fishermen harvest European anchovy primarily off the Black Sea coast of the Krasnodar Territory during its wintering and wintering migrations. At wintering grounds, temperature conditions become a secondary factor in determining the behaviour of commercial concentration of European anchovy, with wind and currents being the primary factors. Therefore, the aim of this work is to determine the potential use of daily data on water circulation and local atmospheric transport in short-term (1–7 days) forecasting of European anchovy fishing in the Black Sea. The research used the European anchovy fishery monitoring materials for January – March 2019, as well as daily maps of the Black and Azov Seas level anomalies (from satellite altimetry data) and surface atmospheric pressure and temperature in Europe (analysis) for the mentioned period. The dynamics of the catch rate and its relation to altimetry and atmospheric transport indicators in the north-eastern part of the Black Sea were investigated using graphical and correlation methods. This analysis showed that the main factor contributing to increased catches is intensification of northwest currents in the coastal 60-km zone. The effect of atmospheric transport on fishing efficiency depends on the mesoscale eddy structure of the nearshore current field. In the presence of an intense northwest current in the fishing area, southwest atmospheric transports have a positive effect on fishing, while in the presence of an anticyclonic meander of currents, northeast atmospheric transports become effective. The presence of maximum significant relationships when the determinants of fishing performance are shifted by 1–7 days allows making short-term predictions of fishing efficiency.

The Baron de Baye's Antiquities from North-east Russia and Siberia

1923 ◽  
Vol 3 (1) ◽  
pp. 52-60
Author(s):  
Ellis H. Minns
Keyword(s):  
Eighteenth Century ◽  
Black Sea ◽  
The Black Sea ◽  
North East ◽  
Black Sea Coast ◽  
East Russia ◽  
The Crimea ◽  
Northern Russia ◽  
Sea Coast ◽  
West European

The archaeology of the Black Sea coast quickly attracted attention when the Russians conquered the Crimea at the end of the eighteenth century, and the Scythic barrows of the Steppes began to be carefully excavated almost as soon; but it was not till the fifties and sixties that the less imposing antiquities of northern Russia found any one to study them even among Russians. West European interest naturally came later, the pioneers were first the Finn Aspelin in the seventies and next the Baron de Baye, who about 1890 sought to throw light from the East upon the Merovingian and other Teutonic styles which were his special province.

scholarly journals FEATURES OF Sr DISTRIBUTION IN ROCKS AND SOILS OF GEOCHEMICAL LANDSCAPES OF THE BLACK SEA COAST OF RUSSIA

2021 ◽  
Vol 1 (6) ◽  
pp. 126-130
Author(s):  
I.Y. Matasova ◽  
Keyword(s):  
Black Sea ◽  
Humus Horizon ◽  
Chemical Elements ◽  
Agricultural Landscapes ◽  
The Black Sea ◽  
North Caucasus ◽  
The North ◽  
Black Sea Coast ◽  
The Impact ◽  
Sea Coast

The article considers the results of studying the features of Sr distribution in rocks of various ages and composition and soils of landscapes of the Black Sea coast of Russia (in the humus horizon and soil profile). The content of elements in the studied soils is compared with the regional background for the soils of the North Caucasus. A direct relationship between the content of the element in soils and underlying rocks, as well as the influence of technogenesis on the processes of accumulation and removal of the element in the soils of agricultural landscapes, has been revealed. The results of a comprehensive study of the south of Russia became the basis for studying the peculiarities of the distribution of Sr landscapes of the Black Sea coast of Russia. To establish the main parameters of the distribution of chemical elements in rocks and soils of various landscapes and the region as a whole, to identify geochemical features of geographical and technogenic differentiation, to assess the impact of various types of environmental management on changes in the geochemical spectrum of soils, to determine the influence of landscape-forming factors on the migration of chemical elements and the formation of geochemical barriers. The highest concentration of Sr was observed in carbonate-terrigenous rocks of the Paleogene and Cretaceous ages (marls and limestones). In the humus horizon of soils, the average metal concentrations vary in the range from 13.0∙10–3 to 95.0∙10–3 % with a regional clark of 22.0∙10–3 %.

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.

Caloplaca phlogina, a lichen with two facies; an example of infraspecific variability resulting in the description of a redundant species

2010 ◽  
Vol 42 (6) ◽  
pp. 685-692 ◽  
Author(s):  
Jan VONDRÁK ◽  
Jaroslav ŠOUN ◽  
Majbrit Zeuthen SØGAARD ◽  
Ulrik SØCHTING ◽  
Ulf ARUP
Keyword(s):  
Predominantly White ◽  
Black Sea ◽  
Molecular Data ◽  
The Black Sea ◽  
Separate Species ◽  
The North ◽  
Black Sea Coast ◽  
Variable Population ◽  
Sea Coast

AbstractCaloplaca phlogina is shown here to have two kinds of soralia, yellow soralia with anthraquinones versus whitish or white-green soralia lacking pigments. Both kinds are present, growing side by side, in some localities in Scandinavia, but yellow soralia appear to be more common. In contrast, the populations from halophilous shrubs on the Black Sea coast have predominantly white soralia, and they were described as a separate species, C. scythica. A single collection from Chile also has white soralia. Molecular data and phenotype examinations convinced us that Scandinavian and Black Sea populations are conspecific. We consider the North European, phenotypically variable population as a source for the Black Sea population which is ecologically and phenotypically more uniform.

scholarly journals HANDMADE LAMPS FROM TYRAS

2018 ◽  
Vol 28 (3) ◽  
pp. 140-146
Author(s):  
N. O. Son ◽  
I. M. Sheiko
Keyword(s):  
Black Sea ◽  
Mass Production ◽  
Local History ◽  
Black Sea Region ◽  
History Museum ◽  
The North ◽  
Black Sea Coast ◽  
North Western ◽  
Sea Coast

The publication considers handmade lamps from Tyras, which are stored in the scientific funds of the Institute of Archaeology of the NAS of Ukraine and Bilhorod-Dnistrovskyi Local History Museum. Lighting devices are divided into five types by shape: from semi-closed post-Hellenistic forms with an elongated nozzle, to wide-open forms, so-called boat-shaped lamps. Of particular interest are several rare forms (the 6th type) that are difficult to correlate with any type. All items in this publication are dated by the period from the 4th century BC to the 4th century AD. In addition, the authors managed to find similar analogies not only in the North-Western Black Sea region, but also beyond its borders. Handmade lamps were not items of mass production and were not intended to be widely traded. Nevertheless, they were used not massively, at a considerable area from the Northwest Black Sea coast to the Cimmerian Bosporus during the period from the 4th century BC to the 4th century AD. The abovementioned lamps, unlike certain types of handmade wares, can not be used as an ethno-indicative feature. During the periods of political and economic destabilization, the decline of crafts and trade could have led to the need for the production of handmade wares and lamps in particular.

scholarly journals Causes and systematics of inundations of the Krasnodar territory on the Russian Black Sea coast

2016 ◽  
Author(s):  
N. I. Alexeevsky ◽  
D. V. Magritsky ◽  
K. P. Koltermann ◽  
I. N. Krylenko ◽  
P. A. Toropov
Keyword(s):  
Black Sea ◽  
River Flow ◽  
River Basins ◽  
Cold Season ◽  
Seasonal Distribution ◽  
The Black Sea ◽  
The North ◽  
Early Autumn ◽  
Black Sea Coast ◽  
Sea Coast

Abstract. We analyse inundation situations on the Black Sea coast of Krasnodar territory for the period from 1945 until 2013 and describe the main types of inundations at the coast. Synoptic factors of the formation of extreme rainfalls and rainfall floods, features and regularities of the downstream flood wave transformation in the rivers are studied. Assessments of seasonal and maximum flow of the Black Sea Coast rivers for the period for which hydrometric measurements describe regularities of change of the occurrence of inundations and their characteristics on the coastal terrain, within a year and on perennial time scale. Most catastrophic and exceptional inundations arise in the summer and in early autumn. Small inundations during the remaining year reflect the seasonal distribution of river flow and floods in the Black Sea Rivers. Extensive and sometimes extreme precipitation dominates the river flow regimes. The seasonal distribution of small and moderately dangerous inundations reflects, on average, a water regime of two groups of rivers of the coast – to the north of the Tuapse River, and to the south. To the north of the Tuapse River, floods prevail from November until March (to 70 %). They result from precipitation and winter snowmelt during frequent thaw periods. High waters in the cold season of the year often overlap with each other, forming a multipeak high water with 2–3 weeks in duration. In the summer and in early autumn a steady low flow is observed. The total amount of runoff increases both in a southeast direction, and with the altitude of the river basins. Inter-annual variability of mean annual runoff, as well as maximum runoff, on the contrary decreases in the southern direction and with an increasing area of a river basin. The coastal high waters of the rivers of the Sochi part are typical at any time of the year, but more often floods in the cold season result from incessant rains, and thawing snow. Annually up to 25 floods are observed. The principal reason of such distribution is the increase of extreme rainfalls in the warm season. Orographic features of the coast and detailed features of rainfall cover only a small number of local river basins and a limited area. The geographical correlation of individual rainfall and subsequent floods ceases to be statistically significant for the distances over 40–60 km. The annual flow cycle is mainly determined by strong winter and spring, and weak summer flows: Despite a characteristic distribution of floods and of water flow within a year, almost 71 % of all catastrophic and exceptional inundations took place in July – August (71 %) and in October – November (29 %). The characteristic features of dangerous floods are their rapid formation and propagation, a significant increase of water level (up to 5–7 m and more) and multiple increase of water discharges. An appreciable increase of the number of inundations in the period from the early 1970s until the early years of the 21th century was noted. Quantitative assessments of risk, hazard and damage for the population and economic activities from accidental inundations in the valleys of the Black Sea coast rivers show that economic and social losses from inundations at the Black Sea coast of the Krasnodar territory are one of the highest in the Russian Federation. The basic conclusion from recent inundations is the need to consider not only the lower reaches and mouths of the Black Sea coast rivers where the main part of the social and economic development of the coast is concentrated, but also total river basins and catchments. Further, we provide an analysis of the efficiency of the measures applied at the coast to fight inundations and their aftereffect.

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