A review of geodetic and remote sensing methods used for detecting surface displacements caused by mining

Owczarz, Karolina

doi:10.1088/1755-1315/609/1/012076

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…Research on land subsidence and hydrological consequences uses various methods and techniques (review by 28 ). Many of these methods are still based on constant monitoring of changes in land surface relief using geodetic instruments 29 , 30 and satellite navigation systems 31 , 32 .…”

Section: Introductionmentioning

confidence: 99%

“…Many of these methods are still based on constant monitoring of changes in land surface relief using geodetic instruments 29 , 30 and satellite navigation systems 31 , 32 . Moreover, in many countries, including Poland, mapping of the Earth's surface is systematically carried out using airborne LIDAR data 28 or using the photogrammetric Structure from Motion (SfM) technique 33 , which is currently experiencing a renaissance thanks to the increasing use of unmanned aerial vehicles (UAVs) 34 – 36 . Some of the most popular are remote sensing methods, based on obtaining information about the Earth's surface, mainly from satellite imagery, especially in the radar band (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Some of the most popular are remote sensing methods, based on obtaining information about the Earth's surface, mainly from satellite imagery, especially in the radar band (e.g. 28 , 37 – 40 ). Some data are freely available in the public domain, e.g.…”

Section: Introductionmentioning

confidence: 99%

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Lake bottom relief reconstruction and water volume estimation based on the subsidence rate of the post-mining area (Bytom, Southern Poland)

Wita,

Szafraniec,

Absalon

et al. 2024

Sci Rep

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Mining activity leads to subsidence troughs and permanent changes in water relations, like the formation of anthropogenic reservoirs. In the Upper Silesian Coal Basin (S Poland), their number is so high that the area is called an anthropogenic lake district. Any form of water retention, in the face of climate change, is valuable. However, the problem is the high variability of these lakes, making it challenging to estimate water resources. An example of this type of anthropogenic lake is the Brandka Pond in Bytom. An original method was proposed, consisting of two stages: reconstruction of the lake bottom relief based on the initial state of the area relief in 1994, i.e. at the beginning of the reservoir formation, and the land subsidence rate calculated for this area. Archival cartographic materials and DEMs from LiDAR data were used and processed in the open-source geoinformation software. Orthophoto maps and satellite scenes were also collected to determine changes in the extent of the pond from 1993 to 2019. Bathymetric data obtained in 2019 during sonar measurements on the reservoir was used to verify the calculations. The pond began to form in the early 1990s, and by 2019, it had reached an area of 178,226 m2, a maximum depth of 5.8 m and a capacity of 421,173 m3. The reconstruction method is accurate and suitable for lakes over 2 m deep, and the calculated capacity differs from the bathymetric data by 0.2%.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Lake bottom relief reconstruction and water volume estimation based on the subsidence rate of the post-mining area (Bytom, Southern Poland)

Wita,

Szafraniec,

Absalon

et al. 2024

Sci Rep

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A Geo-Hazard Risk Assessment Technique for Analyzing Impacts of Surface Subsidence within Onyeama Mine, South East Nigeria

Nduji

Madu

Okafor

et al. 2023

Land

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This paper proposes a geo-hazard risk assessment technique to analyze the impacts of surface subsidence monitored in a major coal mine in Nigeria. In many developing countries, disaster risk management schemes have mainly focused on traditional singular hazard assessment, vulnerability assessment, or risk assessment. However, it is difficult to use a singular application to adequately address hazard assessment due to the variation in data requirements, factors associated with the hazards, and the various elements at risk. Most times, hazard assessment schemes heavily rely on data and techniques from different global organizations that collate data on disasters, using various scales and objectives to make informed decisions. Several challenges seemingly arise from total reliance on these kinds of data due to standardization, the exact number of potential victims, and the purpose of the data collection. This makes disaster information collected at the local level unique and assessment schemes more complete; however, the coverage is limited worldwide. The proposed approach combines the spatial relationship between vulnerability assessment and elements at risk to highlight the grave consequences of potential disasters. Thus, the aim is to underscore the importance of integrating local-level inputs in analyzing risk factors and vulnerability indicators for hazard assessment. This study was conducted at the Onyeama coal mine in South East Nigeria. This area has experienced severe negative impacts of subsidence over the years. We exploit data from Sentinel-1 Synthetic Aperture Radar (SAR) Satellites and Small-Baseline Subset Differential Interferometric Synthetic Aperture Radar (SBAS-DInSAR) technique to map the study area. The results generate an elements-at-risk database with a particular focus on population density, road networks, and building networks identified as indices for loss estimation.

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A Low-Cost Web Application System for Monitoring Geometrical Impacts of Surface Subsidence

Nduji

Madu²,

Okafor³

2022

Sustainability

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This paper develops a low-cost web application system for monitoring geometrical impacts of surface subsidence. In many of the developing countries, the method of extraction of minerals such as coal is often impractical and uneconomical, especially with surface mining. With global warming, rapid population growth, and fast-growing urbanization with a disregard for sustainability, the overall subsidence risk has significantly increased. Despite the maturity of Differential Interferometric Synthetic Aperture Radar (DInSAR) for timely monitoring of subsidence hazards, the potential of SAR constellations has been under-exploited, as most applications focus mainly on mapping unstable areas. The developed web application system exploits Sentinel-1 SAR constellation and Small-BAseline Subset (SBAS-DInSAR) technique, to provide new streamlines of information for monitoring solutions and improve disaster risk decision making. We illustrate the model by investigating and measuring potential surface subsidence caused by underground hard coal mining activities and exponential urban population growth within a major coalmine in Nigeria. Results of the yearly cumulative amount of horizontal and vertical deformation between 2016 and 2020 range from −25.487 mm to −50.945 mm and −24.532 mm to −57.161 mm, for high and low risks, respectively. Under the influence of external factors such as rising poverty and fast-growing urbanization, the destruction of in situ stress distributions will likely increase nonlinear deformations.

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A review of geodetic and remote sensing methods used for detecting surface displacements caused by mining

Cited by 3 publications

References 16 publications

Lake bottom relief reconstruction and water volume estimation based on the subsidence rate of the post-mining area (Bytom, Southern Poland)

Lake bottom relief reconstruction and water volume estimation based on the subsidence rate of the post-mining area (Bytom, Southern Poland)

A Geo-Hazard Risk Assessment Technique for Analyzing Impacts of Surface Subsidence within Onyeama Mine, South East Nigeria

A Low-Cost Web Application System for Monitoring Geometrical Impacts of Surface Subsidence

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