scholarly journals ASSESSMENT OF SOCIO-ECONOMIC CONSEQUENCES OF HAZARDOUS ABRASION AND LANDSLIDE PROCESSES IN THE COASTAL ZONE OF THE AZOV SEA

Author(s):  
A.D. Khаvanskiy ◽  
◽  
V.V. Latun ◽  
O.A. Khoroshev ◽  
Yu.Yu. Merinova ◽  
...  

The main factors of the formation of hazardous coastal processes have been established, 38 functional areas and a zone of impact of hazardous abrasion and landslide processes predicted for a 20-year period have been identified in the coastal zone of the Azov Sea by their uniform combination in the coastal zone of the Azov Sea. In the forecasted area, 112 socio-economic objects have been identified that are exposed to hazardous abrasion and landslide processes. A methodology has been developed and the socio-economic risk of manifestation of abrasion and landslide processes in the coastal zone of the Azov Sea has been assessed. The highest values of the socio-economic risk of abrasion and landslide processes occur in abrasion and abrasion-landslide areas of the coast with a high speed abrasion, a large number of capital construction projects and a high value of material losses. For socio-economic objects in the risk zone, an enlarged calculation of the possible economic damage was made. The value of the predicted (in the future for 20 years) total economic damage from the consequences of the manifestation of abrasion and landslide processes in the coastal zone of the Azov Sea will amount to 756,7 million rubles, of which 114,4 million rubles will fall on the northern coast of the Taganrog Bay, 156,8 million rubles – to the southern coast of the Taganrog Bay and 485,6 million rubles – to the southeast coast of the Azov Sea. The most dangerous areas of abrasion and landslide processes for capital construction sites are: on the northern shore of the Taganrog Bay – Botsmanovsky, with damage to capital structures – more than 50 million rubles, Zolotokosovsky – more than 16 million rubles; Kuchugurskiy – more than 17 million rubles – on the southeast coast of the Azov Sea.

2020 ◽  
Vol 175 ◽  
pp. 06008 ◽  
Author(s):  
Alexander Khavansky ◽  
Vladimir Latun ◽  
Oleg Khoroshev ◽  
Yuliya Merinova ◽  
Ludmila Nedoseka

The methodology was developed and the socio-economic risk of the manifestation of abrasion and landslide processes in the coastal zone of the Azov Sea was evaluated. The methodology includes assessing the degree of danger of coastal processes and determining possible material losses. The numerical index of socio-economic risk is calculated as the product of point estimates of these parameters. The main factors of dangerous coastal processes formation have been established, according to their similar combination in the coastal zone of the Azov Sea, 42 functional areas and the impact zone of hazardous abrasion and landslide processes predicted for a 20-year period have been identified. In the forecast zone, 112 socio-economic objects were identified that are subject to the influence of dangerous abrasion and landslide processes. For these socio-economic objects, using the standard set of tools of the public GIS service “Cadastral map of Rosreestr”, an enlarged calculation of possible economic damage has been made. The highest values of the socio-economic risk of the manifestation of abrasion and landslide processes in the coastal zone of the Azov Sea fall on abrasion and abrasion-landslide sections of the coast with a high rate of abrasion, a large number of capital construction projects and a high value of material losses.


Formulation of the problem. According long- term data analyses under the slides zone in Ukrainian part of the Azov sea sustainable processes had been marked. Landslides are most active in autumn and spring. The activation of landslides occurs under the influence of man-made and natural factors. The most significant factor is coastal abrasion. Review of previous publications. It was established that the air temperature and precipitation, the temperature and salinity of sea waters and the hydrometeorological regime of the coastal zone and the water balance of the Black and Azov seas as well depends on climatic changes. The rising of the sea level has intensified over the past decades. These changes found a response in the coastal zone that reacted to them and acquired corresponding trends. Purpose is to determine the reasons for the formation of dynamically unstable sectors and the possibility of protecting the shores on the Ukrainian coast in the Azov Sea, the subject is landslide processes, as the result of the abrasion of the shores, the object is the variability of the natural and anthropogenic conditions of the Ukrainian coast of the Azov Sea in the area of interaction between the sea and land. Methods. Analyses of images space and temporal dynamic of Earth remote sensing satellites by DigitalGlobe, USGS LandLook and Sentinel were used and also retrospective long term of hydrometeorological data and standard statistical methods. Results. The places (areas) with pronounced coastal dynamic processes on the Ukrainian coast of the Azov Sea were identified, that require special attention: two in the Kherson region, five in the Zaporozhye region and four in Donetsk. In the coastal zone of the Azov Sea the rate of abrasion from 1 to 4 m per year (in exceptional cases up to 15 m per year) was marked. In a period of significant level rises, the flooding of ports, berths, the destruction of hydraulic engineering structures, storage facilities, and residential buildings is possible. Also, during the period of the significant decreasing of the sea level, the already limited depth of the approach channels decreases again, that disrupts the operation of the fleet. Conclusions. Investigations of the current state of the Ukrainian coastal zone of the Azov Sea, that is significant importance for the sustainable the economy development, the recreational region’s potential and the social level of the population. It has been established that in the eastern regions of the Azov coast of Ukraine there are a deficit of sediments and a high degree of variability of the abrasion form of the coastal-sea relief is noted, and an excess of sediments are formed in the western and northwestern regions.


Author(s):  
A.G. Shmidko ◽  
◽  
G.A. Shmidko ◽  

The study of the geoecological problems of the coastal zone of the Taganrog Bay is still not given due attention by the administrative authorities. Although it is the deterioration of the geoecological situation that deserves special attention. In this regard, the assessment of the development of modern ecological and geological processes is an urgent task. The coast of the Taganrog Bay has an exceptionally advantageous geographical position, and has a significant natural resource potential, which contributes to the development of various types of economic activities and causes a deep transformation of the natural complex of the coastal zone


Author(s):  
М. Бровко ◽  
M. Brovko

Modern lithodynamic processes within the northern coast of the Sea of Azov depend on both the endogenous and exogenous factors. At the present stage of the coastal zone evolution the exogenous anthropogenic processes are dominant. Thus, regulation of the Azov Sea rivers has led to a decrease in revenue of alluvium, which feeds the coastal zone of the sea, consequently reducing the rates of accumulation. The intensive development of buildings of different economic values within accumulative spits and mainland coast, without any scientific justification has led to greater abrasion and changes, both qualitative and quantitative characteristics of the lithological flows.


Author(s):  
S.A. Misirov ◽  
◽  
I.V. Sheverdiaev ◽  
A.A. Magaeva ◽  

The study is devoted to the assessment of areal losses of various types of land use in the coastal zone of the Taganrog Bay as a result of the manifestation of dangerous exogenous geological processes. The method of estimating the movement of the coastline using the Digital Shoreline Analysis System (DSAS) v5. add-on to the Esri ArcGIS Desktop 10.4-10.6. The superstructure allows you to calculate the statistics of the speed of its change from several historical positions of the coastline, based on the constructed sections (transects) perpendicular to the shore with a given step. Based on the calculated statistics, a forecast of the coastline is formed (for 10 or 20 years ahead) based on historical data on the location of the coastline. The construction of forecast horizons is performed using the Kalman filter to combine the observed positions of the coastline with the simulated positions to predict the future position of the coastline. The data sources were archival images of high and medium resolution satellite missions “Corona“, “Spot“, “Sentinel-2“. Based on the calculated abrasion rates for the northern coast of the Taganrog Bay from 1967 to 2020, and for the southern coast from 1971 to 2020, forecast horizons for 10 and 20 years ahead are formed and the areas of land with different types of land use falling into the expected collapse zone are calculated. The results obtained show that on the northern coast, the types of “wastelands“ and beaches are most susceptible to collapse, while on the southern coast, the main type falling under the collapse is arable land. A similar trend is typical for the entire coast as a whole.


2020 ◽  
Vol 12 (23) ◽  
pp. 10034
Author(s):  
Stylianos Providakis ◽  
Chris D. F. Rogers ◽  
David N. Chapman

Due to the increasing use of underground space to align with sustainability needs, geohazard risk assessments have become a valuable tool for decision-making. One common issue in relation to urban geohazard assessments relates to ground movements due to tunneling affecting adjacent buildings. A framework for assessing costs related to subsequent building damage, using integrated data, statistics and considering the uncertainties involved, is presented in this paper. The proposed methodology provides an integration of Monte Carlo simulations to support uncertainty estimations with an analysis for building-damage cost risk due to tunneling-induced settlements. The analysis involves analytical models using green-field conditions and a typically used building damage assessment method. BIM is capable of collating, combining and visualizing information with advanced analysis techniques into a risk-based tool. The resulting tool provides a clear way of assessing building-damage costs risk due to tunneling-induced settlements. This uses a BIM-based environment and incorporates 3D visualizations and an integrated analysis via MATLAB to reveal and highlight hazardous areas and the severity of economic risk along the tunneling route. This informs the need for additional ground investigations or secondary analyses to ensure engineering processes reduce or remove the risk of economic damage and advance sustainable decision-making.


2019 ◽  
Vol 110 ◽  
pp. 01025
Author(s):  
Mikhail Shilin ◽  
Alexandra Ershova ◽  
Yuri Matveev ◽  
Nikolay Popov ◽  
Olga Mandryka ◽  
...  

The article discusses the possibility and perspectives of using the reclaimed artificial areas in the coastal zone of marine estuaries for the sustainable development of urban infrastructure and creation of modern architectural ensembles with the background of green economy using the example of Lakhta-Center on the northern coast of the Neva Bay (St. Petersburg, Russia). The geo-ecological stability of underwater and coastal landscapes of the coastal zone of the Neva Bay is analyzed using side scan sonar. The environmental sensitivity of coastal ecosystems is estimated. The received data can be used on practice for planning the construction work and for the development of the infrastructure of urbanized coastal zone of the Neva Bay. The general geo-ecological situation in the observed area is rather stable. The coastal zone has good perspectives for the development of a sustainable urban infrastructure against the backdrop of the green economy. The special attention should be paid to migration of birds and fish, who are using the North Lakhta coast as a temporary refugium during Spring and Autumn migrations. An effective solution from both environmental and economic points of view could be the organization of the Nature Conservation Reserve, which is spatially associated with the Lakhta Center zone. Such type of the complex using of the coastal zone could be a good example of the spatial planning in the environmentally sensitive area.


Sign in / Sign up

Export Citation Format

Share Document