scholarly journals Modelling episode of Saharan dust transfer over the Black Sea according to the WRF model and MODIS satellite data

2021 ◽  
Vol 285 ◽  
pp. 08004
Author(s):  
Anna Papkova ◽  
Yulia Papkova ◽  
Dmitrii Shukalo
Keyword(s):  
Black Sea ◽  
Satellite Images ◽  
Wrf Model ◽  
Saharan Dust ◽  
The Black Sea ◽  
Optical Parameters ◽  
Sahara Desert ◽  
Black Sea Region ◽  
Dust Transport ◽  
Dust Load

A high dust load from the Sahara Desert is recorded annually over the Black Sea region. To make a reliable forecast for the level of dust, many external factors such as the wind energy, the soil content in the moisture are to be considered. The physical characteristics of the aerosol particles in the atmosphere are also very important. This study focuses on the prediction of dust content for the Black Sea region by using the WRFdust model. Prolonged dust transport over the Black Sea was recorded during the period from September 25 to September 30, 2020. On these days, MODIS satellite images, return trajectories of AERONET and optical parameters of the atmosphere were analyzed.

scholarly journals Modelling the generation of dusty marine aerosol by expeditionary data and remote sensing methods over the Black Sea region

2020 ◽  
Vol 224 ◽  
pp. 02031
Author(s):  
A Papkova ◽  
S Papkov ◽  
D Shukalo
Keyword(s):  
Black Sea ◽  
Sea Water ◽  
Atmospheric Correction ◽  
Water Area ◽  
The Black Sea ◽  
Marine Aerosol ◽  
Reliable Determination ◽  
Black Sea Region ◽  
Dust Transport ◽  
Remote Sensing Methods

During a long-range transport, Sahara dust is naturally mixed with other aerosols, including maritime. At present, the mixing of these types of marine and dust aerosols is of particular interest, since it is important to correctly estimate the ionic and mass balance of aerosol particles. This problem is caused by the need for a reliable determination of the aerosol source and for correct atmospheric correction of satellite data. An analysis was made of the correlation between the change in the AOT parameter and the dates of dust transport from the Sahara to the Black Sea region. The analysis results confirmed the fact that the presence of dust aerosol over the Black Sea water area has a strong effect on the AOT indicator at all wavelengths, increasing the parameter almost by 2 times. This fact is correspondent to the generation of a secondary type of aerosol, namely, dusty marine aerosol. Analysis of CALIPSO aerosol subtype maps also revealed the presence of dusty marine aerosol with corresponding depolarization coefficients.

Subsatellite observations of the fundamental bio-optical parameters of the Black Sea (new approach)

2002 ◽  
Vol 8 (2-3) ◽  
pp. 231-238
Author(s):  
G.K. Korotaev ◽  
◽  
M.E. Li ◽  
G.A. Tolkachenko ◽  
◽  
...  
Keyword(s):  
Black Sea ◽  
The Black Sea ◽  
Optical Parameters ◽  
New Approach

SHORT-TERM DYNAMICS OF THE ANAPA BAY-BAR SHORELINE

2017 ◽  
Author(s):  
Marina Krylenko ◽  
Marina Krylenko ◽  
Alexandr Aleynikov ◽  
Alexandr Aleynikov ◽  
Viacheslav Krylenko ◽  
...  
Keyword(s):  
Black Sea ◽  
Satellite Images ◽  
The Black Sea ◽  
Northwestern Part ◽  
Short Term ◽  
Shoreline Position ◽  
Local Dynamics ◽  
Average Displacement ◽  
Local Erosion

The Anapa bay-bar is located in the northwestern part of the Black Sea. With the goal in mind to determine the short-term dynamics of the Anapa bay-bar we analyzed satellite images from 2003 to the present. Depending on the hydro-lithodynamical situation the shoreline configuration during storm can vary from a rectilinear to sinusoidal forms. There are regions of local erosion or accumulation whose formation is related to the alongshore motion of sediments and dynamics of underwater bars. Comparison of the data on 1965 and 1966 showed that in this period the amplitude of the shoreline position was more than 20 m but average displacement of the shoreline for 13 months was only 0.8 m. This study showed that for the analysis of changes in the shoreline position is necessary to consider the configuration of the coastline at the time of each observation and the local dynamics.

Obsidian Exchange Networks in Prehistoric Anatolia: New Data from the Black Sea Region

Paléorient ◽  
2013 ◽  
Vol 39 (2) ◽  
pp. 173-182
Author(s):  
Bleda S. Düring ◽  
Bernard Gratuze
Keyword(s):  
Black Sea ◽  
The Black Sea ◽  
Exchange Networks ◽  
Black Sea Region

The referendum as an institution in the Black Sea Region: Does it signal the rise or collapse of democracy?

2019 ◽  
Vol 17 (4) ◽  
pp. 161-185
Author(s):  
Małgorzata Podolak
Keyword(s):  
Black Sea ◽  
Direct Democracy ◽  
The Black Sea ◽  
Moral Issues ◽  
Black Sea Region ◽  
Positive Effects ◽  
The Subject ◽  
Democratic Systems ◽  
Important State ◽  
Constitutional Changes

Views on the institution of direct democracy have changed during the period of democratic transition. The various advantages and positive effects of direct democracy have been confirmed by the practice of some democratic countries. Its educational and political activation value for society was also noted, without which civil society cannot form. The referendum is especially treated as the purest form of correlation between the views of society and the decisions of its representatives. In a situation where two representative bodies are present – the parliament and the president – a referendum is considered a means of resolving disputes between them in important state affairs. The referendum is nowadays becoming more than just a binding or consultative opinion on a legislative act, especially a constitution. First and foremost, it is important to see the extension of the type and scope of issues that are subject to direct voting. Apart from the traditional, i.e., constitutional changes, polarising issues that raise considerable emotion have become the subject of referenda. Problems of this type include, in particular, moral issues, membership in international organisations, and so-called ‘New Policy’. This article presents the role and importance of the referendum as an institution shaping the democratic systems of the Black Sea Region.

The Black Sea factor influencing the wastewater disposal strategy for Istanbul

1995 ◽  
Vol 32 (7) ◽  
pp. 63-70
Author(s):  
I. Ethem Gönenç ◽  
Oguz Müftüoglu ◽  
Bilsen Beler Baykal ◽  
Ertugrul Dogan ◽  
Hüseyin Yüce ◽  
...  
Keyword(s):  
Black Sea ◽  
Satellite Images ◽  
The Black Sea ◽  
Marmara Sea ◽  
Research Institutions ◽  
Trophic Conditions ◽  
Wastewater Disposal ◽  
The World ◽  
Collaborative Efforts

Unlike other seas of the world, the Black Sea shows unique quality and trophic properties. Fortunately, only the upper layer water of the Black Sea is introduced into the Bosphorus and has a significant effect on the quality and trophic conditions of the Marmara Sea. These effects are discussed in the light of data obtained from collaborative efforts of Turkish and Romanian research institutions and processed satellite images. In conjunction with these discussions, recommendations for a suitable effluent disposal strategy for Istanbul's wastewater have been given.

Analysis of potential seismic sources of tsunamis in the Black Sea region, using data from various catalogues

2021 ◽  
Author(s):  
Emil Oynakov ◽  
Liliya Dimitrova ◽  
Lyubka Pashova ◽  
Dragomir Dragomirov
Keyword(s):  
Black Sea ◽  
Scientific Evidence ◽  
Active Faults ◽  
Active Regions ◽  
The Black Sea ◽  
Earthquake Catalogues ◽  
Crimean Peninsula ◽  
Black Sea Region ◽  
Global Science ◽  
Using Data

<p>Low-laying territories along the Black Sea coastal line are more vulnerable to the possible high (long) waves due to tsunami events caused by strong earthquakes in the active seismic regions. Historically, such events are rare in the Black Sea region, despite some scientific evidence of tsunamis and their recordings through continuous sea-level observations with tide gauges built in certain places along the coast. This study analyses seismic data derived from different international earthquake catalogues - NEIC, ISC, EMSC, IDC and Bulgarian national catalogue (1981 - 2019). A catalogue of earthquakes within the period covering the historical to the contemporary seismicity with magnitudes M ≥ 3 is compiled. The data are processed applying the software package ZMAP, developed by Stefan Wiemer (http://www.seismo.ethz.ch/en/research-and-teaching/products-software/software/ZMAP/index.html). The catalogues' completeness is calculated to assess the reliability of the historical data needed to assess the risk of rare tsunami events. The prevailing part of the earthquakes' epicentres are in the seismically active regions of Shabla, the Crimean peninsula, the east and southeast coast of the Black Sea forming six main clusters, which confirmed previous studies in the region. In these areas, several active and potentially active faults, which can generate tsunamigenic seismic events, are recognized.</p><p><strong>Acknowledgements: </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 framework of COST Action 18109 “Accelerating Global science In Tsunami HAzard and Risk analysis” (AGITHAR; https://www.agithar.uni-hamburg.de/).</p>

Georgian Historians and the Ideological Confrontation Between East and West

2021 ◽  
Vol 30 (1) ◽  
pp. 153-164
Author(s):  
George Gotsiridze
Keyword(s):  
Soviet Union ◽  
Cultural Values ◽  
Black Sea ◽  
The Black Sea ◽  
Black Sea Region ◽  
The Soviet Union ◽  
Long Time ◽  
Science And Culture ◽  
East And West

The work, on the one hand, highlights the mission of Europe, as an importer of knowledge, which has for centuries been the center of gravity for the whole world, and, on the other hand, the role of the Black Sea Region, as an important part of the Great Silk Road, which had also for a long time been promoting the process of rap-prochement and exchange of cultural values between East and West peoples, until it became the ‘inner lake’ of the Ottoman Empire, and today it reverts the function of rapproching and connecting civilizations. The article shows the importance of the Black Sea countries in maintaining overall European stability and in this context the role of historical science. On the backdrop of the ideological confrontation between Georgian historians being inside and outside the Iron Curtain, which began with the foundation of the Soviet Union, the research sheds light on the merit of the Georgian scholars-in-exile for both popularization of the Georgian culture and science in Eu-rope and for importing advanced (European) scientific knowledge to Georgia. Ex-change of knowledge in science and culture between the Black Sea region and Europe will enrich and complete each other through impact and each of them will have unique, inimitative features.

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