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Journal articles on the topic 'Environmental aspects of Sinkholes'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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1

Furrier, Max, and Tamires Silva Barbosa. "GEOMORPHOLOGY OF JOÃO PESSOA MUNICIPALITY AND ITS ANTHROPOGENIC AND ENVIRONMENTAL ASPECTS." Journal of Urban and Environmental Engineering 10, no. 2 (April 28, 2017): 242–53. http://dx.doi.org/10.4090/juee.2016.v10n2.242-253.

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This paper aims to study the geomorphology of the municipality of João Pessoa, Paraíba State, Brazil and produce a geomorphological map that includes the outlines of the current natural landforms and technogenic relief. From this mapping, morphostructural and morphosculptural units, patterns and landforms, shape types and current morphogenetic processes were identified and quantified in the municipality along with landforms produced exclusively by human processes. The current forms and technogenic relief obtained through this research included sandy patch processes, sinkholes, active and inactive cliffs, mass movement-produced forms and anthropogenic excavations for limestone and clay mining.

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2

Furrier, Max, and Tamires Silva Barbosa. "GEOMORPHOLOGY OF JOÃO PESSOA MUNICIPALITY AND ITS ANTHROPOGENIC AND ENVIRONMENTAL ASPECTS." Journal of Urban and Environmental Engineering 10, no. 2 (April 28, 2017): 242–53. http://dx.doi.org/10.4090/juee.2016.v10n2.242253.

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This paper aims to study the geomorphology of the municipality of João Pessoa, Paraíba State, Brazil and produce a geomorphological map that includes the outlines of the current natural landforms and technogenic relief. From this mapping, morphostructural and morphosculptural units, patterns and landforms, shape types and current morphogenetic processes were identified and quantified in the municipality along with landforms produced exclusively by human processes. The current forms and technogenic relief obtained through this research included sandy patch processes, sinkholes, active and inactive cliffs, mass movement-produced forms and anthropogenic excavations for limestone and clay mining.

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3

Kermavnar, Janez, Aleksander Marinšek, Klemen Eler, and Lado Kutnar. "Evaluating Short-Term Impacts of Forest Management and Microsite Conditions on Understory Vegetation in Temperate Fir-Beech Forests: Floristic, Ecological, and Trait-Based Perspective." Forests 10, no. 10 (October 16, 2019): 909. http://dx.doi.org/10.3390/f10100909.

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Forest understory vegetation is largely influenced by disturbances and given local abiotic conditions. Our research focuses on the early response of understory vegetation to various forest management intensities in Dinaric fir-beech forests in Slovenia: (i) control, (ii) 50% cut of stand growing stock, and (iii) 100% cut of stand growing stock. Apart from identifying overstory removal effects, we were interested in fine-scale variation of understory vegetation and environmental determinants of its species composition. Vegetation was sampled within 27 karst sinkholes, which represent a dominant landform in studied forests. Within each sinkhole, five sampling plots, varying in slope aspect (centre, north, east, south, west), were established (135 in total), where pre-treatment (in 2012) and post-treatment (in 2014) floristic surveys were conducted. The sampled understory species were characterized in terms of Ellenberg’s indicator values (EIVs) and plant functional traits (plant height, seed mass, specific leaf area, leaf dry matter content). Diversity metrics (species richness, total cover, Shannon index) increased in plots where the silvicultural measures were applied. Tree species richness also increased in 100% cutting. A redundancy analysis revealed that species composition was related to environmental variables, which are directly influenced by management interventions (overstory canopy cover, microclimate—maximum daily temperature, soil properties—thickness of organic soil layer) as well as by topographic factors (slope inclination and surface rockiness). EIVs for light were significantly affected by treatment intensity, whereas soil-related EIVs (moisture, reaction, nutrients) depended more on the within-sinkhole position. Canopy gaps, compared with uncut control plots, hosted a higher number of colonizing species with a higher plant height and smaller seeds, while leaf traits did not show a clear response. We found a negative correlation between pre-treatment species (functional) richness and post-treatment shifts in floristic (functional) composition. Plots with higher richness exhibited smaller changes compared with species-poor communities. Incorporating different perspectives, the results of this study offer valuable insights into patterns of understory vegetation response to forest management in fir-beech forests.

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Quinlan, James F. "Legal aspects of sinkhole development and flooding in karst terranes: 1. Review and synthesis." Environmental Geology and Water Sciences 8, no. 1-2 (March 1986): 41–61. http://dx.doi.org/10.1007/bf02525557.

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5

Salomone, William G. "The applicability of the Florida mandatory endorsement for sinkhole collapse coverage. Part I. Legal aspects." Environmental Geology and Water Sciences 8, no. 1-2 (March 1986): 63–71. http://dx.doi.org/10.1007/bf02525558.

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6

Gutiérrez-Santolalla, F., M. Gutiérrez-Elorza, C. Marín, G. Desir, and C. Maldonado. "Spatial distribution, morphometry and activity of La Puebla de Alfindén sinkhole field in the Ebro river valley (NE Spain): applied aspects for hazard zonation." Environmental Geology 48, no. 3 (May 19, 2005): 360–69. http://dx.doi.org/10.1007/s00254-005-1280-8.

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7

Admassu, Yonathan, and Celestine Woodruff. "Improved Automated Mapping of Sinkholes Using High-Resolution DEMs." Environmental and Engineering Geoscience 27, no. 3 (March 3, 2021): 331–51. http://dx.doi.org/10.2113/eeg-d-20-00081.

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ABSTRACT Sinkholes are common surface manifestations of the presence of networks of subsurface caverns in areas where the bedrock geology is dominated by soluble rocks such as limestones. Accurate mapping of sinkholes is crucial as they are hazardous to transportation infrastructure and may serve as conduits of contaminants to the groundwater. The use of high-resolution digital elevation models extracted from LiDAR and tools in ArcGIS have made it a simple task to automate the process of identification of closed depressions. However, these automated methods do not differentiate between sinkholes and other man-made depressions. Multivariate statistical methods such as linear discriminant analysis, quadratic discriminant analysis, and logistic regression were used to produce predictive models based on selected shape factor values such as circularity, sphericity, and curvature. Curvature values, especially when combined with circularity, were found to be the most powerful variables in separating closed depressions into sinkholes and other artificial depressions.

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Muzirafuti, Anselme, Mustapha Boualoul, Giovanni Barreca, Abdelhamid Allaoui, Hmad Bouikbane, Stefania Lanza, Antonio Crupi, and Giovanni Randazzo. "Fusion of Remote Sensing and Applied Geophysics for Sinkholes Identification in Tabular Middle Atlas of Morocco (the Causse of El Hajeb): Impact on the Protection of Water Resource." Resources 9, no. 4 (April 24, 2020): 51. http://dx.doi.org/10.3390/resources9040051.

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The Causse of El Hajeb belongs to the Tabular Middle Atlas (TMA), in which thousands of karst landforms have been identified. Among them, collapse dolines and dissolution sinkholes have been highlighted as a source of environmental risks and geo-hazards. In particular, such sinkholes have been linked to the degradation of water quality in water springs located in the junction of the TMA and Saïss basin. Furthermore, the developments of collapse dolines in agricultural and inhabited areas enhance the risk of life loss, injury, and property damage. Here, the lack of research on newly formed cavities has exacerbated the situation. The limited studies using remote sensing or geophysical methods to determine the degree of karstification and vulnerability of this environment fail to provide the spatial extent and depth location of individual karst cavities. In order to contribute to the effort of sinkhole risk reduction in TMA, we employed remote sensing and geophysical surveys to integrate electrical resistivity tomography (ERT) and self-potential (SP) for subsurface characterization of four sinkholes identified in the Causse of El Hajeb. The results revealed the existence of sinkholes, both visible and non-accessible at the surface, in carbonate rocks. The sinkholes exhibited distinct morphologies, with depths reaching 35 m. Topography, geographic coordinates and land cover information extracted on remote sensing data demonstrated that these cavities were developed in depressions in which agricultural activities are regularly performed. The fusion of these methods benefits from remote sensing in geophysical surveys, particularly in acquisition, georeferencing, processing and interpretation of geophysical data. Furthermore, our proposed method allows identification of the protection perimeter required to minimize the risks posed by sinkholes.

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Scheidt, J., I. Lerche, and E. Paleologos. "Environmental and economic risks from sinkholes in west-central Florida." Environmental Geosciences 12, no. 3 (September 2005): 207–17. http://dx.doi.org/10.1306/eg.05130404009.

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Arkin, Y., and A. Gilat. "Dead Sea sinkholes - an ever-developing hazard." Environmental Geology 39, no. 7 (May 15, 2000): 711–22. http://dx.doi.org/10.1007/s002540050485.

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11

Xu, Wenjing, Sergio Bernardes, Sydney T. Bacchus, and Marguerite Madden. "Mapped Fractures and Sinkholes in the Coastal Plain of Florida and Georgia to Infer Environmental Impacts from Aquifer Storage and Recovery (ASR) and Supply Wells in the Regional Karst Floridan Aquifer System." Journal of Geography and Geology 8, no. 2 (June 1, 2016): 76. http://dx.doi.org/10.5539/jgg.v8n2p76.

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The regional Floridan aquifer system (FAS) extends from the submerged carbonate platform of the Atlantic Ocean, Gulf of Mexico, and Straits of Florida in the southeastern United States (US), throughout Florida and the coastal plain of Alabama, Georgia, and South Carolina. This carbonate aquifer system is characterized by bedding planes, fractures, dissolution cavities, and other karst features that result in preferential flow of ground water, particularly in response to anthropogenic perturbations such as groundwater withdrawals and aquifer injections. The FAS was divided into six sub-regions for groundwater-modeling purposes in 1989, with results concluding that breaches of those groundwater divides had occurred and those breaches were attributed to large withdrawals of ground water in the US southeastern coastal plain. Those results suggest the model did not elucidate preferential flow conditions through fractures and other karst conduits. We hypothesized that incorporating fractures and sinkholes into groundwater models could improve results and predict adverse impacts to environmentally sensitive areas. We analyzed extensive fracture networks and sinkholes previously mapped throughout Florida and in Dougherty County, Georgia. Some of those fractures extend from one sub-region into an adjacent sub-region of the FAS and may be facilitating the breaching of groundwater divides described in the 1989 groundwater model for this regional aquifer system. The greater total fractures and fracture density in Dougherty County (1,225 and 141.3/100 km2, respectively) compared to 21 north-Florida counties (10-91fractures per county and 0.6-3.8/100 km2, respectively) presumably is due to the scale of fracture mapping and shorter mean lengths of mapped fractures in Dougherty County (1.2 km), compared to north Florida counties (26-118 km), rather than to orders of magnitude increases in fracture densities in that part of the FAS. The number of sinkholes identified in Dougherty County in a recent, unrelated project using 2011 Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) images, was approximately an order of magnitude greater than the number of sinkholes mapped in analog form in that county and published in 1986. Extension of the dense network of those fractures that occurred within the boundaries of a Priority Amphibian and Reptile Conservation Area (PARCA) that encompassed Dougherty County covered the Elmodel Wildlife Management Area (WMA) and ASR demonstration well in Baker County, Georgia. Those extensions also passed through numerous agricultural areas with center-pivot irrigation wells in southwest Georgia; intersected other Georgia PARCAs near the Florida-Georgia state line; and clumped in two areas of dense sinkhole clusters in northwest Florida. No determination has been made regarding the contributions of pirated water from the Apalachicola-Chattahoochee-Flint (ACF) River Basins and Wakulla Springshed from the magnitude and extent of agricultural, municipal, and industrial groundwater withdrawals in Georgia’s coastal plain, that exceed groundwater withdrawals in Florida for that area of the FAS, to the increase in sinkholes in Dougherty County and the dense clusters of sinkholes in northwest Florida, via preferential flow through fractures. Similarly, the survival and recovery of at least 24 animal species in Georgia that are either federally listed or high-priority state species may be jeopardized by adverse direct, indirect, and cumulative impacts from preferential flow through fractures, sinkholes, and other karst conduits in response to aquifer injections and withdrawals that have not been evaluated. Currently no regional groundwater model has been constructed to evaluate such preferential groundwater flow in the FAS. A model incorporating preferential flow via mapped fractures and sinkholes is essential to determine the magnitude and extent of environmental impacts from ASR wells and other supply and disposal wells in this regional aquifer system, such as pirated water from the ACF and other river basins, alterations in submarine groundwater discharge to Apalachicola Bay and other coastal areas, saltwater intrusion, upconing of saline ground water and resulting impacts to federally endangered and threatened species and high-priority state species.

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12

Popperl, Simone. "GEOLOGIES OF ERASURE: SINKHOLES, SCIENCE, AND SETTLER COLONIALISM AT THE DEAD SEA." International Journal of Middle East Studies 50, no. 3 (August 2018): 427–48. http://dx.doi.org/10.1017/s002074381800082x.

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AbstractScientists who study Dead Sea sinkholes come to know them in particular ways (as generalized hydrogeoloic phenomena, symptoms of a regional environmental crisis, or divine retribution) and at particular scales (from the distant orbit of Earth observation satellites, from digitally altered aerial photographs, and occasionally from the inside). Using ethnographic data gathered between 2012 and 2015 in the occupied Palestinian territories (oPt), Israel, and Jordan, I compare how groups and individuals study, think, and learn about Dead Sea sinkholes. The way hydrogeologic knowledge about these sinkholes is gathered and circulated helps define land around the Dead Sea as territory to be colonized. These scientific processes can nullify Palestinian claims to the Dead Sea, eliminate Palestinian people from Dead Sea landscapes, and marginalize Bedouin opposition to Jordanian government policies. I suggest that attention to “geologies of erasure” helps scholars to understand the scientific and political impacts of settler colonialisms on the collection of knowledge about changing natural environments in the Middle East and beyond.

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13

Kochev, A. D., L. G. Chertkov, and I. L. Zayonts. "KARST-SUFFOSION PROCESSES ON THE TERRITORY OF MOSCOW AND THE PROBLEM OF THEIR HAZARD ASSESSMENT." Engineering Geology 13, no. 6 (December 21, 2018): 24–32. http://dx.doi.org/10.25296/1993-5056-2018-13-6-24-32.

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The study of the processes leading to the formation of sinkholes on the surface of the earth on the territory of Moscow began in the late 60s of the last century. To date, 42 karst-suffusion funnels have been identified. Analysis of all the studied city sinkholes with their confirmedassociation with the ancient karst showed that their average size of these forms in the plan is 13.1 m, varying from 1.5 to 53 m. At the same time, all calculations of possible diameters of the sinkholes made during engineering-geological surveys in Moscow are usually reduced tovalues less than 3 m, less often they reach 5 – 6 m. The overwhelming number of specialists speak about the urgent need to change and improve the content of the set of rules in terms of engineering-geological surveys in karst areas. Existing calculation models are often usedunreasonably, often the result is tailored to the “necessary” values for designing engineers and builders. Hazard assessment of modern karstsuffosion processes, carried out on the basis of the “Hazard maps of ancient karst forms and modern karst-suffusion processes” (scale 1:10000) created by the specialists of the Sergeev Institute of Environmental Geoscience RAS and the State Unitary Enterprise Mosgorgeotrest in 2012, which determines the need for regional zoning using more meaningful criteria. The paper proposes a new approach, which takes intoaccount the results of the typification of geological-hydrogeological conditions of 42 karst-suffusion sinkholes formed in Moscow. In this case, the hazard prediction is carried out on the basis of an analysis of natural conditions, where a hazardous process has already beenimplemented with access to the surface in the form of such sinkholes.

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14

Beck, Barry F. "Environmental and engineering effects of Sinkholes—the processes behind the problems." Environmental Geology and Water Sciences 12, no. 2 (October 1988): 71–78. http://dx.doi.org/10.1007/bf02574791.

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15

Kidanu, Shishay T., Neil L. Anderson, and J. David Rogers. "Using Gis-based Spatial Analysis To Determine Factors Influencing the Formation of Sinkholes in Greene County, Missouri." Environmental and Engineering Geoscience 24, no. 3 (August 24, 2018): 251–61. http://dx.doi.org/10.2113/eeg-2014.

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Abstract Sinkholes are inherent features of the karst terrain of Greene County, Missouri, that present hazards and engineering challenges to construction/infrastructure development. Analysis of relationships between the spatial distribution of sinkholes and possible influencing factors can help in understanding the controls involved in the formation of sinkholes. The spatial analysis outlined herein can aid in the assessment of potential sinkhole hazards. In this research, Geographic Information System–based ordinary least squares regression (OLS) and geographically weighted regression (GWR) methods were used to determine and evaluate principal factors appearing to influence the formation and distribution of karst sinkholes. From the OLS result, seven out of 12 possible influencing factors were found to exert significant control on sinkhole formation processes in the study area. These factors are overburden thickness, depth to groundwater, slope of the ground surface, distance to the nearest surface drainage line, distance to the nearest geological structure (such as faults or folds), distance to the nearest road, and distance to the nearest spring. These factors were then used as independent variables in the GWR model. The GWR model examined the spatial non-stationarity among the various factors and demonstrated better performance over OLS. GWR model coefficient estimates for each variable were mapped. These maps provide spatial insights into the influence of the variables on sinkhole densities throughout the study area. GWR spatial analysis appears to be an effective approach to understand sinkhole-influencing factors. The results could be useful to provide an objective means of parameter weighting in models of sinkhole susceptibility or hazard mapping.

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Boyer, Douglas G., and Ghiath A. Alloush. "Spatial Distribution of Nitrogen on Grazed Karst Landscapes." Scientific World JOURNAL 1 (2001): 809–13. http://dx.doi.org/10.1100/tsw.2001.374.

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The impact on water quality by agricultural activity in karst terrain is an important consideration for resource management within the Appalachian region. Karst areas comprise about 18% of the region’s land area. An estimated one-third of the region’s farms, cattle, and agricultural market value are located on karst terrain. Mean nitrate concentrations in several karst springs in southeastern West Virginia exhibit a strong linear relationship with the percentage of agriculture land cover. Development of best management practices for efficient nitrogen (N) use and reduction of outflow of N to water from karst areas requires knowledge about N dynamics on those landscapes. Water extractable NO3-N and NH4-N were measured along transects at four soil depths in two grazed sinkholes and one wooded sinkhole. Distribution of soil NO3-N and NH4-N were related to frequency of animal presence and to topographic and hydrologic redistribution of soil and fecal matter in the grazed sinkholes. Karst pastures are characterized by under drainage and funneling of water and contaminants to the shallow aquifer. Control of NO3-N leaching from karst pasture may depend on management strategies that change livestock grazing behavior in sinkholes and reduce the opportunity for water and contaminants to quickly reach sinkhole drains.

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17

SORIANO, M. A., J. L. SIMON, J. GRACIA, and T. SALVADOR. "Alluvial sinkholes over gypsum in the Ebro basin (Spain): genesis and environmental impact." Hydrological Sciences Journal 39, no. 3 (June 1994): 257–68. http://dx.doi.org/10.1080/02626669409492742.

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18

Oramah, I. Theodore. "Polynuclear aromatic hydrocarbons in Dashiwei karst tiankeng (sinkholes), south China." Environmental Geosciences 15, no. 2 (June 2008): 75–83. http://dx.doi.org/10.1306/eg.10110707009.

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ZATSARINNAYA, D. V., E. M. VOLKOVA, and A. A. SIRIN. "VEGETATION AND ENVIRONMENTAL FACTORS OF KARST MIRES IN BROAD-LEAVED FOREST ZONE: METHODICAL APPROACHES, "БОТАНИЧЕСКИЙ ЖУРНАЛ"." Ботанический журнал, no. 4 (2012): 524–37. http://dx.doi.org/10.1134/s1234567812040088.

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Vegetation cover and environmental factors were studied in the system of karts mires in the broad- leaved forest zone in Tula Region, Central European Russia. Mires are formed in the sinkholes and characterized by rather low anthropogenic disturbances. These mires are characterised by floating peat mats and variety of vegetation communities which are differ by ecological conditions (water levels, acidity and nutrition). Development and growth of floating mats change water and mineral feeding that leads to succession of vegetation communities.

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20

Prokopov, Al’bert, Marina Prokopova, Sergei Stel’makh, and Andrei Chernil’nik. "Plugging slurry (backfill) and surface cavity closure technology." E3S Web of Conferences 157 (2020): 01014. http://dx.doi.org/10.1051/e3sconf/202015701014.

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The purpose of the study is to study mining and environmental emergencies associated with the formation of sinkholes of the earth’s surface over mining workings after the mass closure of coal mines and to develop a new method for eliminating the sinkhole. The study used a method of physical modeling, which investigated the influence of humidity on the deformation properties of burnt rocks used as a filler in the manufacture of plugging and filling suspensions, while establishing the dependence of the relative deformation of dump rocks on the load at their natural humidity and water saturation. The main results of the research are: a new method for eliminating dips in the earth’s surface over the inclined opening workings of the liquidated coal mines of the Eastern Donbass; formulations of plugging and filling suspensions used for layer-by-layer filling of sinkholes and providing non-shrink laying.

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21

Wallace, R. E. "Dye trace and bacteriological testing of sinkholes: Sulphur Springs, Tampa, Florida." Environmental Geology 22, no. 4 (December 1993): 362–66. http://dx.doi.org/10.1007/bf00767510.

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22

Benito, G., P. Pérez del Campo, M. Gutiérrez-Elorza, and C. Sancho. "Natural and human-induced sinkholes in gypsum terrain and associated environmental problems in NE Spain." Environmental Geology 25, no. 3 (April 1995): 156–64. http://dx.doi.org/10.1007/bf00768545.

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23

Yin, Shang-Xian, and Jincai Zhang. "Impacts of karst paleo-sinkholes on mining and environment in northern China." Environmental Geology 48, no. 8 (August 11, 2005): 1077–83. http://dx.doi.org/10.1007/s00254-005-0046-7.

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Buchignani, V., G. D’Amato Avanzi, R. Giannecchini, and A. Puccinelli. "Evaporite karst and sinkholes: a synthesis on the case of Camaiore (Italy)." Environmental Geology 53, no. 5 (May 15, 2007): 1037–44. http://dx.doi.org/10.1007/s00254-007-0730-x.

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Palanisamy, Bakkiyalakshmi, and Stephen R. Workman. "Hydrologic Modeling of Flow through Sinkholes Located in Streambeds of Cane Run Stream, Kentucky." Journal of Hydrologic Engineering 20, no. 5 (May 2015): 04014066. http://dx.doi.org/10.1061/(asce)he.1943-5584.0001060.

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Asunción, María, Aránzazu Luzón, Alfonso Yuste, Andrés Pocoví, Antonio Pérez, José Simón, and Héctor Gil. "Quaternary alluvial sinkholes: Record of environmental conditions of karst development, examples from the Ebro Basin, Spain." Journal of Cave and Karst Studies 74, no. 2 (August 31, 2012): 173–85. http://dx.doi.org/10.4311/2011jcks0201.

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LaMoreaux, Philip, and Wanfang Zhou. "Foreword - Special Issue - "Eighth multidisciplinary conference on sinkholes and the engineering and environmental impacts of karst"." Environmental Geology 42, no. 5 (August 1, 2002): 445–46. http://dx.doi.org/10.1007/s00254-001-0503-x.

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Beck, B. F. "Multidisciplinary conferences on sinkholes and karst: Past, present, and is there a future." Environmental Geology 22, no. 4 (December 1993): 289–90. http://dx.doi.org/10.1007/bf00767499.

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Solari, Lorenzo, Roberto Montalti, Anna Barra, Oriol Monserrat, Silvia Bianchini, and Michele Crosetto. "Multi-Temporal Satellite Interferometry for Fast-Motion Detection: An Application to Salt Solution Mining." Remote Sensing 12, no. 23 (November 29, 2020): 3919. http://dx.doi.org/10.3390/rs12233919.

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Underground mining is one of the human activities with the highest impact in terms of induced ground motion. The excavation of the mining levels creates pillars, rooms and cavities that can evolve in chimney collapses and sinkholes. This is a major threat where the mining activity is carried out in an urban context. Thus, there is a clear need for tools and instruments able to precisely quantify mining-induced deformation. Topographic measurements certainly offer very high spatial accuracy and temporal repeatability, but they lack in spatial distribution of measurement points. In the past decades, Multi-Temporal Satellite Interferometry (MTInSAR) has become one of the most reliable techniques for monitoring ground motion, including mining-induced deformation. Although with well-known limitations when high deformation rates and frequently changing land surfaces are involved, MTInSAR has been exploited to evaluate the surface motion in several mining area worldwide. In this paper, a detailed scale MTInSAR approach was designed to characterize ground deformation in the salt solution mining area of Saline di Volterra (Tuscany Region, central Italy). This mining activity has a relevant environmental impact, depleting the water resource and inducing ground motion; sinkholes are a common consequence. The MTInSAR processing approach is based on the direct integration of interferograms derived from Sentinel-1 images and on the phase splitting between low (LF) and high (HF) frequency components. Phase unwrapping is performed for the LF and HF components on a set of points selected through a “triplets closure” method. The final deformation map is derived by combining again the components to avoid error accumulation and by applying a classical atmospheric phase filtering to remove the remaining low frequency signal. The results obtained reveal the presence of several subsidence bowls, sometimes corresponding to sinkholes formed in the recent past. Very high deformation rates, up to −250 mm/yr, and time series with clear trend changes are registered. In addition, the spatial and temporal distribution of velocities and time series is analyzed, with a focus on the correlation with sinkhole occurrence.

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Zhou, Wanfang, and Barry F. Beck. "Management and mitigation of sinkholes on karst lands: an overview of practical applications." Environmental Geology 55, no. 4 (October 11, 2007): 837–51. http://dx.doi.org/10.1007/s00254-007-1035-9.

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Bogdanov, Olga, Nataša Bojković, and Marijana Petrović. "Vehicle platooning: Environmental aspects." Tehnika 75, no. 4 (2020): 355–63. http://dx.doi.org/10.5937/tehnika2003355b.

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Environmental protection is actively becoming one of the main issues of the Sustainable Development Agenda, and is therefore in the focus of various scientific papers and publications. In the context of vehicle platooning, the environment represents an important area, considering that some of the main goals of this transport technology are to reduce fuel consumption and the reduction of harmful gas emissions. Both goals are achievable when optimizing the speed of vehicles in the convoy, but they also depend on the number of vehicles in the convoy, the type of road they travel on, the weight/mass they carry, as well as the weather conditions. This paper will provide insights into platooning simulations and researches conducted in real conditions, which will focus on the impact of this transportation technology on the environment.

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Nagy, Gábor. "Environmental aspects in accounting." Acta Agraria Debreceniensis, no. 52 (March 20, 2013): 127–31. http://dx.doi.org/10.34101/actaagrar/52/2111.

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By the strengthening of the economic competition became it apparent a company can’t be valued separate, it should be examined as a complex system. In the assessment of corporate performance is increasingly emphasized the environmental performance. The relevant information of stakeholder about the environmental performance is todays an expection, For this, a management control system is needed, which provide relevant information to managers, hence facilitating the informed decision. This study highlighted, accounting systems are able to meet this demand sufficiently, the accounting means not only the usual bookkeeping, it can be interpreted as a management-controll system, which can help in the valuation of the environmental performance.

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Wonham, Dr Jon. "Ocean Cities : Environmental aspects." La Houille Blanche, no. 8 (December 1995): 60–62. http://dx.doi.org/10.1051/lhb/1995081.

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LAWRENCE, ROGER. "ASPECTS OF ENVIRONMENTAL CHANGE." New Zealand Geographer 49, no. 1 (April 1993): 52. http://dx.doi.org/10.1111/j.1745-7939.1993.tb02031.x.

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D., Lastkov, and Dubovaya A. "HEALTH CONDITION: ENVIRONMENTAL ASPECTS." Health, physical culture and sports 17, no. 1 (2020): 26–32. http://dx.doi.org/10.14258/zosh(2020)1.2.

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36

Snelling, R. "Environmental aspects of ISDN." IEEE Communications Magazine 25, no. 12 (December 1987): 14–16. http://dx.doi.org/10.1109/mcom.1987.1093507.

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Osipov, V. I. "Sustainable Development: Environmental Aspects." Herald of the Russian Academy of Sciences 89, no. 4 (July 2019): 396–404. http://dx.doi.org/10.1134/s1019331619040087.

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Maguire, R. James. "Environmental aspects of tributyltin." Applied Organometallic Chemistry 1, no. 6 (1987): 475–98. http://dx.doi.org/10.1002/aoc.590010602.

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Arenholt-Bindslev, D. "Dental Amalgam— Environmental Aspects." Advances in Dental Research 6, no. 1 (September 1992): 125–30. http://dx.doi.org/10.1177/08959374920060010501.

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Abstract:

Increasing knowledge about the risk of toxic effects caused by anthropogenic mercury accumulation in ecosystems has resulted in a growing pressure for reduction of the discharge of mercury waste. Consequently, the mercury waste problems of dental clinics have been given increased attention, and restrictions on handling and discharge of contaminated waste have been established in several countries. Major amalgam particles from trituration surplus of those produced during the carving and burnishing of new amalgam restorations are generally collected in coarse filters and sold for refinement. Minor amalgam particles released by production of new fillings or by removal of old restorations partly sediment in tubes and drains. The remaining particles are carried with the waste water stream to the local purifying plant. In Scandinavia, the industrial discharge of mercury-contaminated waste water has been reduced to a minimum. According to recent investigations, dental clinics appear to be responsible for the major amount of mercury collected in the sludge generated in purifying plants. If threshold values for heavy metal content, including mercury, are exceeded, the sludge is not allowed to be recycled as fertilizer. Installation of an approved amalgam-separating apparatus in dental clinics is now mandatory in several countries-for example, Switzerland, Germany, Sweden, and Denmark. Approval of amalgam separators is based on national testing programs, including clinical or laboratory tests demanding 95-99% separating efficiency.

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CHALMERS, LEX. "ASPECTS OF ENVIRONMENTAL CHANGE." New Zealand Journal of Geography 94, no. 1 (May 15, 2008): 22–23. http://dx.doi.org/10.1111/j.0028-8292.1992.tb00441.x.

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Prieur, Michel. "Environmental Agreements: Legal Aspects." Review of European Community & International Environmental Law 7, no. 3 (November 1998): 301–7. http://dx.doi.org/10.1111/1467-9388.00163.

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Rawlings, A. V. "Dry Skin: Environmental Aspects." Exogenous Dermatology 3, no. 2 (2004): 57–71. http://dx.doi.org/10.1159/000086156.

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Decaillon, Joël. "Corporate responsibility: environmental aspects." Transfer: European Review of Labour and Research 10, no. 3 (August 2004): 476–79. http://dx.doi.org/10.1177/102425890401000313.

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v. Mühlendahl, K. E., M. Otto, and J. Spranger. "Environmental aspects in pediatrics." European Journal of Pediatrics 154, no. 5 (May 1995): 337–38. http://dx.doi.org/10.1007/bf02072097.

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Wiersma, James H., Ronald D. Stieglitz, Dewayne L. Cecil, and Glenn M. Metzler. "Characterization of the shallow groundwater system in an area with thin soils and sinkholes." Environmental Geology and Water Sciences 8, no. 1-2 (March 1986): 99–104. http://dx.doi.org/10.1007/bf02525563.

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Basso, A., E. Bruno, M. Parise, and M. Pepe. "Morphometric analysis of sinkholes in a karst coastal area of southern Apulia (Italy)." Environmental Earth Sciences 70, no. 6 (February 12, 2013): 2545–59. http://dx.doi.org/10.1007/s12665-013-2297-z.

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Moreno‐Pérez, Pablo Antonio, Marivel Hernández‐Téllez, Ninfa Ramirez‐Durán, Marcela Gamboa‐Angulo, and Keila Isaac‐Olivé. "Microorganisms and spatial distribution of the sinkholes of the Yucatan Peninsula, underestimated biotechnological potential?" Water and Environment Journal 34, S1 (June 14, 2019): 41–49. http://dx.doi.org/10.1111/wej.12502.

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Gochioco, Lawrence M., Ming Zhang, and Maggie Zhao. "Environmental site assessment of an oil field and detection and imaging of sinkholes using a novel geophysical method." Leading Edge 27, no. 11 (November 2008): 1480–86. http://dx.doi.org/10.1190/1.3011020.

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Shi, Yun, Yaming Tang, Zhong Lu, Jin-Woo Kim, and Junhuan Peng. "Subsidence of sinkholes in Wink, Texas from 2007 to 2011 detected by time-series InSAR analysis." Geomatics, Natural Hazards and Risk 10, no. 1 (January 1, 2019): 1125–38. http://dx.doi.org/10.1080/19475705.2019.1566786.

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Panno, S. V., C. P. Wiebel, P. C. Heigold, and P. C. Reed. "Formation of regolith-collapse sinkholes in southern Illinois: Interpretation and identification of associated buried cavities." Environmental Geology 23, no. 3 (April 1994): 214–20. http://dx.doi.org/10.1007/bf00771791.

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