scholarly journals Application of satellite radar interferometry (PSINSAR) in analysis of secondary surface deformations in mining areas case studies from Czech Republic and Poland

2018 ◽  
pp. 173-185 ◽  
Author(s):  
Jan Blachowski
2019 ◽  
Vol 11 (3) ◽  
pp. 884 ◽  
Author(s):  
Jan Blachowski ◽  
Anna Kopec ◽  
Wojciech Milczarek ◽  
Karolina Owczarz

The issue of monitoring surface motions in post-mining areas in Europe is important due to the fact that a significant number of post-mining areas lie in highly-urbanized and densely-populated regions. Examples can be found in: Belgium, the Czech Republic, France, Germany, the Netherlands, Spain, the United Kingdom, as well as the subject of this study, the Polish Walbrzych Hard Coal Basin. Studies of abandoned coal fields show that surface deformations in post-mining areas occur even several dozen years after the end of underground coal extraction, posing a threat to new development of these areas. In the case of the Walbrzych area, fragmentary, geodetic measurements indicate activity of the surface in the post-mining period (from 1995 onward). In this work, we aimed at determining the evolution of surface deformations in time during the first 15 years after the end of mining, i.e., the 1995–2010 period using ERS 1/2 and Envisat satellite radar data. Satellite radar data from European Space Agency missions are the only source of information on historical surface movements and provide spatial coverage of the entirety of the coal fields. In addition, we attempted to analyze the relationship of the ground deformations with hydrogeological changes and geological and mining data. Three distinct stages of ground movements were identified in the study. The ground motions (LOS (Line Of Sight)) determined with the PSInSAR (Persistent Scatterer Interferometry) method indicate uplift of the surface of up to +8 mm/a in the first period (until 2002). The extent and rate of this motion was congruent with the process of underground water table restoration in separate water basins associated with three neighboring coal fields. In the second period, after the stabilization of the underground water table, the surface remained active, as indicated by local subsidence (up to −5 mm/a) and uplift (up to +5 mm/a) zones. We hypothesize that this surface activity is the result of ground reaction disturbed by long-term shallow and deep mining. The third stage is characterized by gradual stabilization and decreasing deformations of the surface. The results accentuate the complexity of ground motion processes in post-mining areas, the advantages of the satellite radar technique for historical studies, and provide information for authorities responsible for new development of such areas, e.g., regarding potential flood zones caused by restoration of groundwater table in subsided areas.


2018 ◽  
Vol 54 (5) ◽  
pp. 515-520 ◽  
Author(s):  
V. O. Mikhailov ◽  
E. A. Kiseleva ◽  
E. I. Smol’yaninova ◽  
P. N. Dmitriev ◽  
V. I. Golubev ◽  
...  

Author(s):  
S. B. Ozhigina ◽  
D. V. Mozer ◽  
D. S Ozhigin ◽  
S. G. Ozhigin ◽  
O. G. Bessimbayeva ◽  
...  

In the Karaganda coal basin, mines are located in close proximity to each other and to the city of Karaganda and ongoing mining operations are accompanied by a dangerous process of settling the earth's surface and monitoring are essential for the region's econ-omy. Underground mining leads to the formation of voids in the rock mass, which cause displacement of the earth surface. This paper demonstrates an innovative use of the integrated approach for monitoring on the example of Karaganda coal basin, which includes estimation of the rock mass displacement using leveling profile lines and satellite radar interferometry. It is proved that satellite radar interferometry provides reliable results of surface subsidence measurements in mining areas and can be used for con-sidered sort of monitoring.


2020 ◽  
pp. 53-61
Author(s):  
V.M. Filatova ◽  
◽  
I.V. Nazarov ◽  
A.V. Filatov ◽  
◽  
...  

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.


Author(s):  
S. B. Ozhigina ◽  
D. V. Mozer ◽  
D. S Ozhigin ◽  
S. G. Ozhigin ◽  
O. G. Bessimbayeva ◽  
...  

In the Karaganda coal basin, mines are located in close proximity to each other and to the city of Karaganda and ongoing mining operations are accompanied by a dangerous process of settling the earth's surface and monitoring are essential for the region's econ-omy. Underground mining leads to the formation of voids in the rock mass, which cause displacement of the earth surface. This paper demonstrates an innovative use of the integrated approach for monitoring on the example of Karaganda coal basin, which includes estimation of the rock mass displacement using leveling profile lines and satellite radar interferometry. It is proved that satellite radar interferometry provides reliable results of surface subsidence measurements in mining areas and can be used for con-sidered sort of monitoring.


2012 ◽  
Vol 2 (2) ◽  
pp. 56-70
Author(s):  
Petr Kopečný

This paper concentrates on the area of special educational support provided to individuals living in homes for people with disabilities in the Czech Republic and presents partial research results illustrating the state of the provision of speech therapy to users of social services facilities falling under the jurisdiction of the Ministry of Labour and Social Affairs. The subject of the research is an analysis of support for the development of the communication skills of pupils living in social services facilities. The partial results of the research outline the approaches employed by the managerial staff of the given facilities in implementing special educational procedures, describe forms of speech therapy provision in homes for people with disabilities, and compare the attitudes of teachers and social services staff to the development of communication with the importance attributed to it by speech therapists and demonstrated by the case studies performed.


2014 ◽  
Vol 637 ◽  
pp. 163-177 ◽  
Author(s):  
Benedetta Antonielli ◽  
Oriol Monserrat ◽  
Marco Bonini ◽  
Gaia Righini ◽  
Federico Sani ◽  
...  

1996 ◽  
Vol 42 (140) ◽  
pp. 10-22 ◽  
Author(s):  
Ian Joughin ◽  
Dale Winebrenner ◽  
Mark Fahnestock ◽  
Ron Kwok ◽  
William Krabill

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.


Science ◽  
1993 ◽  
Vol 262 (5139) ◽  
pp. 1525-1530 ◽  
Author(s):  
R. M. Goldstein ◽  
H. Engelhardt ◽  
B. Kamb ◽  
R. M. Frolich

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

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