scholarly journals GEODYNAMICS

GEODYNAMICS ◽  
2021 ◽  
Vol 2(31)2021 (2(31)) ◽  
pp. 41-52
Author(s):  
Maksym Pakshyn ◽  
◽  
Ivan Liaska ◽  
Natalia Kablak ◽  
Halyna Yaremko ◽  
...  
Keyword(s):  
Roman Empire ◽  
Residential Buildings ◽  
Mining Area ◽  
Radar Data ◽  
Radar Interferometry ◽  
Salt Mine ◽  
Area Of Interest ◽  
Geological Processes ◽  
Satellite Radar ◽  
And Performance

The most dangerous exogenous geological processes (EGP) in terms of the amount of damage caused to economic objects include: landslides, karst, flooding, abrasion, mudslides, etc. The distribution and intensity of EGP are determined by the peculiarities of geological and geomorphological structure of the territory, its tectonic, neotectonic and seismic regime, as well as hydrological, climatic, hydrogeological paleo- and modern conditions. Solotvynsky salt mine is one of the oldest enterprises in Transcarpathia. The field has been exploited since the Roman Empire. In 1360, a settlement of salt miners, Solotvyno, was founded on the site of the mine, which later became a center of salt production and a royal monopoly. There are a total of nine mines in the field. In 1995-1996 and 2001, floods began flooding mines. In 2005, landslides and karst abysses intensified in Solotvyno, leading to damage to residential buildings, roads and infrastructure. There was a complete flooding of the mines of two mines. Currently, dangerous natural and man-made processes are observed on the territory of the salt mine and adjacent territories. This is mainly salt karst, both underground and surface, the collapse of areas in the location of mines, as well as landslides. Therefore, the purpose of the research is to conduct a geodynamic audit of SOLOTVYNSKY SALT MINE SE and the surrounding area with the possibility of identifying areas with subsidence or rise of the earth's surface, which are gradually slowing down, accelerating or developing at a constant rate. Output data. Radar interferometry data in the period from April 30, 2016 to June 25, 2018 were used for research and performance of geodynamic audit of SOLOTVYNSKY SALT MINE SE and the adjacent territory. Modern methods of interferometric processing of satellite radar data are used in the work: the method of "PS" – the method of constant scatterers, and the method SBAS – the method of small baselines. The method of geometric leveling was used to measure vertical displacements in some places on the earth's surface in order to verify interferometric data. Monitoring of the area of interest was carried out using modern technologies of satellite radar interferometry. According to the results of observations of landslides and individual objects by space (radar interferometry) and ground (geometric leveling) methods, a high correlation of data was recorded and the presence of zones of active subsidence in the mining area was confirmed.

The satellite radar monitoring for anthropogenic and natural geological hazards mapping within the Solotvyno mining area (Transcarpathia, Ukraine)

2021 ◽  
Author(s):  
Maxim Pakshin ◽  
Stella Shekhunova ◽  
Svitlana Stadnichenko ◽  
Ivan Liaska
Keyword(s):  
Land Surface ◽  
Mining Area ◽  
Salt Dome ◽  
Ecological Situation ◽  
Surface Deformations ◽  
Geological Processes ◽  
Vertical Displacements ◽  
Dome Structure ◽  
Satellite Radar ◽  
Radar Monitoring

<p>Satellite images have been interpreted to establish the basic patterns of land surface deformations and predict the development of hazardous geological processes within the Solotvyno salt dome structure and the adjacent territories (Transcarpathia, Ukraine). Solotvyno rock salt deposit is one of the largest in Ukraine. Geotechnical and hydro-geological problems at the deposit have started to accumulate since the mid-90s and have led to a dangerous environmental technogenic situation that was given the national emergency status in 2010. This multi-hazard geo-ecological situation is a result of overlapping both anthropogenic “post-mining” (karst, subsidence, sinkhole formation, ground surface collapses, mine flooding, slope mass movements) and natural (flooding, landslides, etc.) hazardous geological processes, in particular, the disturbance of land surface, which is the sign of the uncontrolled development of salt karst, flooding and could result in transboundary pollution of the Tysa River, etc.</p><p>To forecast the development of hazardous geological processes, monitoring was implemented by using innovative techniques for processing satellite radar data, such as “Persistent Scatterers (PS)”, “Small Baseline Subset (SBAS)”. Due to the use of long-time series of images obtained with a synthetic aperture radar (SAR), the errors of orbital data and the effects of atmospheric phenomena have been effectively suppressed. The results of processing are digital maps, with the accuracy of evaluating the average vertical displacement rate of the objects being 2–4 mm/year when using the “PS” technique and 6–15 mm/year if using the “SBAS”.</p><p>A highly accurate evaluation of the vertical displacements of objects and land surface has been carried out using interferometric processing of satellite radar monitoring data by means of new satellite constellations including Sentinel-1A and 1B (DInSAR analysis data for 2016–2020, SBAS approach, Copernicus EMSN-030, EMSN-064; PS+SBAS approach, Center of the Special Information Receiving and Processing and the Navigating Field Control, Ukraine). The research area was 33 sq. km. Information end products (raster and vector) have been created, which permitted the changes in spatial and temporal dimensions to be analyzed. The values and areas of concentrated land surface deformations have been determined within the zone of anthropogenic and natural karst development. The areas of land surface subsidence with the average rate of vertical displacements from -6 to -94 mm/year have been digitized using GIS tools.</p><p>The assessment of anthropogenic hazards for the Solotvyno salt dome structure and adjacent territories has been provided. It has been determined that mines No7, 8, and 9 pose an anthropogenic threat to the safety of Solotvyno community inhabitants.</p><p>The reconstruction of land surface vertical displacements in time has been carried out within the studies performed. In order to ensure life safety in Solotvyno, the results will be used in territory development and in setting up the system of monitoring. In view of the complicated geo-ecological situation, the development and functioning of a permanent geo-ecological monitoring system for the Solotvyno mining area and the adjacent territories is the top-priority objective.</p><p>The research has been carried out with the EU financial support: projects REVITAL 1 (HURSKOVA/1702/6.1/0072) and ImProDiReT (No. 783232).</p>

Large scale monitoring of technogenic objects displacements using radar interferometry technique

2020 ◽  
pp. 53-61
Author(s):  
V.M. Filatova ◽  
◽  
I.V. Nazarov ◽  
A.V. Filatov ◽  
◽  
...  
Keyword(s):  
Large Scale ◽  
Ground Surface ◽  
Radar Data ◽  
Radar Interferometry ◽  
Practical Significance ◽  
Anthropogenic Factors ◽  
Surface Deformations ◽  
Persistent Scatterers ◽  
Satellite Radar ◽  
Kaliningrad Region

The given paper considers the use of satellite radar interferometry techniques for the detection of ground surface deformations and technogenic objects displacements over a wide area. The relevance of the work consists of the need for identification of high geodynamical risk areas as a result of natural and anthropogenic factors. The main results of the work are the system of Sentinel-1A/B radar data full interferometric processing, geo-informational service for the publication of the processing results and interactive displacements map of Kaliningrad region for 2017-2018. The central part of the realized system is the previously developed and registered software FInSAR for radar data processing using persistent scatterers method. An important element of the system is geoportal which provides a user with access to the results and contains instruments for geospatial analysis. The interactive map of the Kaliningrad region represents point measurements of average annual displacements rate of technogenic objects with a possibility to trace displacements history. The paper consists of an introduction, two main sections and conclusions. The introduction is devoted to the actuality and practical significance of the developed system. The second section describes the characteristics of Sentinel-1A/B source data, radar interferometry technique and the persistent scatterers approach. The third section describes the principal scheme of the system operation and the results of its use for technogenic objects displacements monitoring in the Kaliningrad region as an example. In the last section, the main conclusions are made and further direction of research and development in frame of the presented project is designated. Keywords: synthetic aperture radar, radar interferometry, Sentinel-1A/B, geoinformational service, ground surface deformations.

Pre-eruptive ground deformation of Azerbaijan mud volcanoes detected through satellite radar interferometry (DInSAR)

2014 ◽  
Vol 637 ◽  
pp. 163-177 ◽  
Author(s):  
Benedetta Antonielli ◽  
Oriol Monserrat ◽  
Marco Bonini ◽  
Gaia Righini ◽  
Federico Sani ◽  
...  
Keyword(s):  
Ground Deformation ◽  
Radar Interferometry ◽  
Mud Volcanoes ◽  
Satellite Radar

scholarly journals Measurement of ice-sheet topography using satellite-radar interferometry

1996 ◽  
Vol 42 (140) ◽  
pp. 10-22 ◽  
Author(s):  
Ian Joughin ◽  
Dale Winebrenner ◽  
Mark Fahnestock ◽  
Ron Kwok ◽  
William Krabill
Keyword(s):  
Ice Sheets ◽  
Ice Sheet ◽  
Surface Displacement ◽  
Horizontal Resolution ◽  
Radar Interferometry ◽  
Altimeter Data ◽  
Laser Altimeter ◽  
Digital Elevation ◽  
Satellite Radar ◽  
Ice Sheet Topography

AbstractDetailed digital elevation models (DEMs) do not exist for much of the Greenland and Antartic ice sheets. Radar altimetry is at present the primary, in many cases the only, source of topographic data over the ice sheets, but the horizontal resolution of such data is coarse. Satellite-radar interferometry uses the phase difference between pairs of synthetic aperture radar (SAR) images to measure both ice-sheet topography and surface displacement. We have applied this technique using ERS-1 SAR data to make detailed (i.e. 80 m horizontal resolution) maps of surface topography in a 100 km by 300 km strip in West Greenland, extending northward from just above Jakobshavns Isbræ. Comparison with а 76 km long line of airborne laser-altimeter data shows that We have achieved a relative accuracy of 2.5 m along the profile. These observations provide a detailed view of dynamically Supported topography near the margin of an ice sheet. In the final section We compare our estimate of topography with phase contours due to motion, and confirm our earlier analysis concerning vertical ice-sheet motion and complexity in ERS-1 SAR interferograms.

Satellite Radar Interferometry for Monitoring Ice Sheet Motion: Application to an Antarctic Ice Stream

Science ◽  
1993 ◽  
Vol 262 (5139) ◽  
pp. 1525-1530 ◽  
Author(s):  
R. M. Goldstein ◽  
H. Engelhardt ◽  
B. Kamb ◽  
R. M. Frolich
Keyword(s):  
Ice Sheet ◽  
Radar Interferometry ◽  
Ice Stream ◽  
Satellite Radar

Drought-driven transient aquifer compaction imaged using multitemporal satellite radar interferometry

Geology ◽  
2011 ◽  
Vol 39 (6) ◽  
pp. 551-554 ◽  
Author(s):  
Pablo J. González ◽  
José Fernández
Keyword(s):  
Radar Interferometry ◽  
Satellite Radar

scholarly journals Service Performance in Public, Conventional Private and Specialized Private Banks in Bangladesh

2018 ◽  
Vol 14 (3) ◽  
pp. 100
Author(s):  
Md Abu Saleh
Keyword(s):  
Research Field ◽  
Service Performance ◽  
Future Research ◽  
Limited Attention ◽  
Competitive Edge ◽  
Area Of Interest ◽  
Private Banks ◽  
And Performance ◽  
Public Banks ◽  
Private Banking

Banking services play a key role in present competitive edge. Accordingly, service quality, satisfaction and performance have become an area of interest in such research field. An extensive review of literature revealed that very limited attention has been given to explore the borrower customers’ perspectives regarding the conventional public, private and specialised private banking. Therefore, this research strives to accommodate a developing perspective where conventional and non-conventional Islamic banks are operating and providing services to their customers. Data have been collected from 78 borrower customers to examine their perceived quality, satisfaction and performances of banks. The study revealed that service performance by the Islamic and conventional private banks were found well-organized in providing services and better than public banks. The study finally addressed the limitations and future research directions.

The use of satellite radar interferometry to monitor landslides in Slovakia

2020 ◽  
pp. 129-137
Author(s):  
M. Lesko ◽  
J. Papco ◽  
M. Bakon ◽  
R. Czikhardt ◽  
M. Plakinger ◽  
...  
Keyword(s):  
Radar Interferometry ◽  
Satellite Radar
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