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Artículos de revistas sobre el tema "Geo-hazards"

Autor: Grafiati

Publicado: 10 de marzo de 2023

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1

Tian, Shu Jun y Ji Ming Kong. "Susceptibility Forecast of Geo-Hazard under the Conditions of Earthquake and Rainfall". Applied Mechanics and Materials 353-356 (agosto de 2013): 1219–22. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.1219.

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Large amount of loose deposits and potential geo-hazards were formed by Wenchuan earthquake, which would be transformed into collapses, landslide and debris flows under the condition of rainfall or aftershock. The paper divides influence factors into triggering factors and background factors, and constitutes susceptibility forecast system for geo-hazard based on factors in parallel or series. The background system contains stratum, distance to river, relief, slope and aspect of slope. And the triggering system includes distance to seismic fault and rainfall. The paper applies and verifies the system to forecast the susceptibility of geo-hazard in study area, and the result shows that 52 small watersheds are in extremely high and high states accounting for 37.68% in 138 small watersheds. According to the statistics of 23 geo-hazards from field investigation, 13 geo-hazards are in extremely high risk grade of susceptibility and 10 geo-hazards are in high risk grade of susceptibility, which shows that the result of susceptibility forecast of geo-hazard is reasonable.

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2

Giang, Nguyen Cong, Nguyen Van Manh y Nguyen Quang Phich. "Numerical investigation on the tunneling and mining induced geo-hazards: Case study in Quang Ninh, Vietnam". Journal of Science and Technology in Civil Engineering (STCE) - NUCE 14, n.º 3 (23 de julio de 2020): 67–74. http://dx.doi.org/10.31814/10.31814/stce.nuce2020-14(3)-06.

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In the field of rock mechanics, underground construction and mining, there have been many proposed methods for studying geo-hazards and also many research results that have been published in the world. In Vietnam, the numerical method is mainly used for analysis and design but not going deeply to predict the possible causes that lead to geo-hazards due to complex geological conditions. On the other hand, underground constructions and exploitation projects are often designed based on standards, regulations and experiences. The physical mechanism as well as the possibility of geo-hazards occurred when constructing underground structures and mining can take on various forms, depending on geological conditions and construction technology. Therefore, using numerical methods to simulate and analyze the possible geo-hazards is essential. This article presents a number of specific analysis cases, taking into account geological conditions and boundary conditions, and from that, raising a number of issues to note when using numerical methods. Keywords: underground mining; numerical method; geo-hazards; rock mechanics; FLAC2D.

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3

Patra, Subhankar. "Coastal Geo-environmental Hazards and Its Management". Archives of Current Research International 10, n.º 3 (10 de enero de 2017): 1–12. http://dx.doi.org/10.9734/acri/2017/36601.

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4

Senanayake, Sumudu, Biswajeet Pradhan, Alfredo Huete y Jane Brennan. "A Review on Assessing and Mapping Soil Erosion Hazard Using Geo-Informatics Technology for Farming System Management". Remote Sensing 12, n.º 24 (11 de diciembre de 2020): 4063. http://dx.doi.org/10.3390/rs12244063.

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Soil erosion is a severe threat to food production systems globally. Food production in farming systems decreases with increasing soil erosion hazards. This review article focuses on geo-informatics applications for identifying, assessing and predicting erosion hazards for sustainable farming system development. Several researchers have used a variety of quantitative and qualitative methods with erosion models, integrating geo-informatics techniques for spatial interpretations to address soil erosion and land degradation issues. The review identified different geo-informatics methods of erosion hazard assessment and highlighted some research gaps that can provide a basis to develop appropriate novel methodologies for future studies. It was found that rainfall variation and land-use changes significantly contribute to soil erosion hazards. There is a need for more research on the spatial and temporal pattern of water erosion with rainfall variation, innovative techniques and strategies for landscape evaluation to improve the environmental conditions in a sustainable manner. Examining water erosion and predicting erosion hazards for future climate scenarios could also be approached with emerging algorithms in geo-informatics and spatiotemporal analysis at higher spatial resolutions. Further, geo-informatics can be applied with real-time data for continuous monitoring and evaluation of erosion hazards to risk reduction and prevent the damages in farming systems.

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5

Ge, Yong Gang, Feng Huan Su, Xiao Qing Chen y Jian Qiang Zhang. "Destructions on the Karakoram Highway (KKH) from Sost to Khunjerab Induced by Geo-Hazards and Prevention". Applied Mechanics and Materials 744-746 (marzo de 2015): 1234–43. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.1234.

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The Karakoram Highway (KKH), from Islamabad of Pakistan to Kasha of China, passed through the junction areas of the mountains of Karakoram, Himalaya and Hindu Kush and suffers serious destruction of different geo-hazards. This work analyzed distribution and characteristics of geo-hazards, including debris avalanches, rock falls, debris flows, landslides and flash flood along Khunjerab River from Sost to Khungerab and their destructions on KKH(K726~K821). These geo-hazards are commonly initiated by intensive rainfall and melting of glacier and snow, and numerously occurred, especially debris avalanches, rock falls and debris flows, to seriously destruct highway and frequently interrupt traffic. The destructions of highway mainly came from the burying of landslides, debris flows and debris avalanches, the scouring of debris flow and flash flood, the submerging of dammed lakes induced by debris flows and landslides as well as the breaking of rock falls. After analyzing the lessons and experience of geo-hazards mitigating and highway protecting since 1970s, the measures of hazards mitigating, including identifying potential hazard sites,controlling and disposing rock falls in time,integrated controlling debris avalanches, debris flows, landslides and flash flood, establishing emergency treatment plans for hazard chain and founding hazards alarming and highway safe protecting system, are strongly suggested for highway protecting and traffic security.

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6

Tiêu, Nguyễn Duy, Nguyễn Trần Tân, Trương Công Ánh, Nguyễn Văn Bút, Nông Quốc Khánh y Trần Nhật Ký. "Nghiên cứu ứng dụng phương pháp Georada trong các lĩnh vực : điều tra tai biến địa chất, địa chất công trình, tìm kiếm nước ngầm vỡ khoáng sản kim loại". VIETNAM JOURNAL OF EARTH SCIENCES 30, n.º 4 (13 de mayo de 2008): 346–55. http://dx.doi.org/10.15625/0866-7187/31/4/11776.

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7

Vennari, Carmela, Paola Salvati, Cinzia Bianchi, Domenico Casarano, Mario Parise, Alessia Basso y Ivan Marchesini. "AReGeoDatHa: Apulian Regional GeoDatabase for geo-hydrological Hazards". Journal of Environmental Management 322 (noviembre de 2022): 116051. http://dx.doi.org/10.1016/j.jenvman.2022.116051.

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8

Buslima, F. S., R. C. Omar, Tajul Anuar Jamaluddin y Hairin Taha. "Flood and Flash Flood Geo-Hazards in Malaysia". International Journal of Engineering & Technology 7, n.º 4.35 (30 de noviembre de 2018): 760. http://dx.doi.org/10.14419/ijet.v7i4.35.23103.

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Floods are natural phenomena of geo-hazards that usually happened when experiencing prolonged heavy rainfalls. Floods in Malaysia can be categorized into monsoon floods and flash floods. Monsoon floods is caused of Northeast Monsoon season commences in early November and ends in March that brings heavy rainfall, particularly to the east coast states of Peninsular Malaysia and western Sarawak. Flash floods usually occur in areas with rapid development by a rapid rise in water level, high velocity, and large amounts of debris. Flooding that occurred in December 2014 can be classified as worst floods that affected several states in Peninsular Malaysia, and the worst affected is Kelantan state. This disaster was recorded more than 200,000 people were affected with 21 people were killed and gives a massive impact on people, properties, agriculture, livestock, and infrastructure facilities. Following the worst floods that hit Malaysia in 2014, the opinions and views from various parties such as subject matter experts was needed to produce mitigations and prevents of the flood disaster at once to minimize vulnerability to hazard.

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9

Yin, Yueping y Xiaochuan Li. "ICL-CGS Seminar on Geo-hazards in Xi’an". Landslides 8, n.º 3 (12 de agosto de 2011): 405. http://dx.doi.org/10.1007/s10346-011-0289-1.

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10

Chen, Xiao Hui, Xun Hua Zhang y Ri Hui Li. "Types and Acoustic Reflection Characteristics of Geo-Hazards in the Western of the North Yellow Sea". Applied Mechanics and Materials 137 (octubre de 2011): 374–81. http://dx.doi.org/10.4028/www.scientific.net/amm.137.374.

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The geological environments in the western of the North Yellow Sea(NYS) are comparatively complicated and pregnant with various geo-hazards. High-resolution sub-bottom seismic data and previous research progress have been used to examine marine geo-hazards’ types, acoustic reflection features, origins and disaster mechanisms. The results indicate that the hazardous types are complicated and multiple in the western of the NYS, including tidal sand ridge, sand wave, tidal erosion gutter, underwater shoal, shallow gas, buried paleo-channel, active fault, irregular bedrock and so on. They have some connections as well as differentiations in their distribution and genesis. This paper can provide the theoretical basis on marine engineering, disaster prevention and mitigation in the western of the NYS . More attention should be given to severe geo-hazards that can constitute direct or potential hazards to the economic development and engineering construction.

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11

Jian, Wen Bin y Run Li. "Geological Disasters Induced by Wenchuan Earthquake and Site Selection for Post-Earthquake Reconstruction". Advanced Materials Research 250-253 (mayo de 2011): 1256–61. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.1256.

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Based on the field investigation for secondary geological hazards induced by 5.12 Wenchuan Earthquake, the types of geological disasters during or after earthquake are analyzed in this paper. The main secondary geological hazards are rock fall and collapse, landslide, debris flow, dammed lake，sand liquefaction and so on. The development and distribution rules of secondary geo-hazards, with a long-term sustainability and a formation of hazard chains, are of relation with earthquake fault zone, and consistent with seismic intensity. The buildings located in secondary geo-hazards areas with a high risk are damaged severely, thus the site selection for post-earthquake reconstruction and related geotechnical engineering issue are discussed, which are useful in reconstruction of Wenchuan earthquake area.

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12

Vallejo, Luis I. G. "Design with Geo-Hazards: An Integrated Approach from Engineering Geological Methods". Soils and Rocks 35, n.º 1 (1 de enero de 2012): 3–28. http://dx.doi.org/10.28927/sr.351003.

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An engineering geological approach to analysed geo-hazards affecting engineering and planning design decisions is presented. The methodological procedures include hazard identification, hazard assessment, site vulnerability, economic cost, environmental impact, risk assessment, social acceptability, decision analysis and engineering design criteria. The practical application of the Engineering Geological Methodology (EGM) is shown in several case studies: dam safety problems due to slope instability and induced seismicity during reservoir filling; seismic hazard assessment in regions with insufficient seismic data and tectonic information; and large scale geo-hazards due to giant landslides and related tsunamis. The EGM approach can provide fundamental criteria for engineering decisions and territorial planning. Social acceptability should be included in the decision analysis being evaluated according with the hazard level of the geological process and the corresponding risk of the affected elements. Examples of geo-hazards and their social acceptability are presented.

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13

Lasocki, Stanislaw, Beata Orlecka-Sikora, Joanna Kocot, Karolina Chodzińska y Anna Leśnodorska. "EPOS Thematic Core Service Anthropogenic Hazards in the operational phase". Annals of Geophysics 65, n.º 3 (12 de julio de 2022): DM321. http://dx.doi.org/10.4401/ag-8743.

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The problem of hazards induced by the exploitation of geo-resources focuses growing interest of science, industry, public administration, non-governmental organisations and the general public. Anthropogenic seismicity, i.e. the undesired dynamic rock mass response to geo-resources exploitation, is one of the examples of unwanted by-products of the technological operation of humans. The socio-economic impact of the induced seismicity is very significant. Induced earthquakes can cause material loss, injuries and even fatalities. Restricted access to data constitutes a barrier to assessing and mitigating the associated hazards. To respond to the need of the scientific community the Thematic Core Service Anthropogenic Hazards (TCS AH) has been created within the framework of the European Plate Observing System, a solid earth science European Research Infrastructure Consortium (ERIC). TCS AH is an open consortium of 13 European institutions. TCS AH provides access to a novel e-research infrastructure, the EPISODES Platform (former name: IS-EPOS platform) to foster both research and training on induced seismicity and geo-hazards related to the exploration and exploitation of geo-resources. The EPISODES Platform is connected to international data nodes which offer open access to multidisciplinary datasets, called episodes. Episodes comprise geoscientific and associated data from industrial activity along with a large set of embedded applications for their efficient data processing, analysis and visualization. The EPISODES Platform opens also the possibility to create new applications and combine implemented applications with the user's codes. The team-working features of the EPISODES Platform facilitate collaborative and interdisciplinary scientific research, public understanding of science, citizen science applications, knowledge dissemination, and the teaching of anthropogenic hazards related to geo-resource exploitation. This study presents the current results of the TCS AH research infrastructure integration and also indicates the benefits of their usage for science, education, and innovation.

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14

Papadimitriou, Elefteria E. y Sedat İnan. "Multi-disciplinary research on geo- and man-made hazards". Acta Geophysica 58, n.º 5 (25 de agosto de 2010): 717–18. http://dx.doi.org/10.2478/s11600-010-0028-3.

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15

Rehman, Adnanul, Jinxi Song, Fazlul Haq, Shakeel Mahmood, Muhammad Irfan Ahamad, Muhammad Basharat, Muhammad Sajid y Muhammad Sajid Mehmood. "Multi-Hazard Susceptibility Assessment Using the Analytical Hierarchy Process and Frequency Ratio Techniques in the Northwest Himalayas, Pakistan". Remote Sensing 14, n.º 3 (24 de enero de 2022): 554. http://dx.doi.org/10.3390/rs14030554.

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Globally, natural hazards have become more destructive in recent times because of rapid urban development and exposure. Consequently, significant human life loss, the damage to property and infrastructure, and the collapse of the environment directed the attention of geoscientists to control the consequences and risk management in relation to geo-hazards. In this research, an effort was made to produce a compound map, geo-visualizing the susceptibility of multi-hazards, to select suitable sites for sustainable future development and other economic activities in the region. Muzaffarabad District was chosen as a case research area due to the high magnitude of hydro-meteorological and geological hazards. On the one hand, both selected geo-hazard inventories were developed using the field survey and remote sensing data. The subjective and objective weight of all the causative factors and their classes were calculated using the assembled geospatial techniques, such as the Analytical Hierarchy Process (AHP) and Frequency Ratio (FR) in the Geographic Information System (GIS). The results reveal that the most suitable areas are distributed in the southern and northwestern parts, which can be used for future sustainable development and other economic activities. In contrast, the eastern and western regions, including Muzaffarabad City, are within high and very susceptibility zones. Finally, more than 50% of the land area is located in very low and low susceptibility zones. The validation of the proposed model was checked by using three different techniques: the Receiver Operative Characteristic (ROC) curve, Seed Cell Area Index (SCAI), and Frequency Ratio (FR). Both ROCs, the Success Rate Curve (SRC) and the Predictive Rate Curve (PRC), showed the goodness of fit for both the selected geo-hazards: landslides (81.3%) and floods (93.2%), at 80.1% and 91.7%, respectively. All the validation techniques showed good fitness for both the individual and multi-hazard maps. The proposed model sets a baseline for policy implementation for all the stakeholders to minimize the risk and sustainable future development in areas of high frequent geo-hazards.

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16

Liu, Dunlong, Lei He, Qian Wu, Yan Gao, Bin Liu, Shuang Liu y Han Luo. "Construction and application of the 3D geo-hazard monitoring and early warning platform". Open Geosciences 13, n.º 1 (1 de enero de 2021): 1040–52. http://dx.doi.org/10.1515/geo-2020-0293.

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Abstract As geo-hazard monitoring data increases in category and size, conventional geo-hazard information management systems, without a unified integration framework and visualized data display, are unable to satisfy the urgent needs of geo-hazard information management. Representational State Transfer (REST), a resource-centered service architecture, abstracts data and services into resources for unified Uniform Resource Identifier access, enabling it to take full advantage of HTTP with great flexibility and scalability. Based on the REST service architecture, this paper constructs a 3D geo-hazard monitoring and early warning platform with sound service compatibility and scalability by integrating geographical information, real-time monitoring data, and early warning models into the 3D Digital Earth framework. The platform displays topography, stratum lithology, and relevant information, as well as real-time monitoring data in a 3D visual, and provides early warning services for geo-hazards through access to real-time early warning models. As a result, it is capable of providing comprehensive information management, monitoring, and early warning of multiple geo-hazards, aiding decision-making in disaster prevention and mitigation, and enhancing the information level of geo-hazard prevention and mitigation work.

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17

Shrestha, Buddhi Raj, Narendra Raj Khanal, Joëlle Smadja y Monique Fort. "Geo-hydrological hazards induced by Gorkha Earthquake 2015: A Case of Pharak area, Everest Region, Nepal". Geographical Journal of Nepal 13 (19 de marzo de 2020): 91–106. http://dx.doi.org/10.3126/gjn.v13i0.28154.

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Nepal experienced disastrous earthquake events in 2015. The first one (magnitude of 7.8) with epicenter in Barpak, Gorkha district, occurred on 25th April 2015, followed by another event (7.3 magnitude) on 12thMay 2015, with epicenter in 19 km south east of Kodari, Sindhupalchok district. Those earthquake events induced different types of geo-hazard and they are widely distributed and caused serious damages and losses. This paper discusses the types of geo-hazards induced by these Gorkha and Sindhupalchok earthquake events and the losses and damages from those events; and the future risk from those geo-hazards in Pharak area covering 305 km2 in Solukhumbu district, Nepal. Satellite images of before and after the events were used to map landslide, debris flow, landslide dam and other geomorphic changes after earthquake. Information on the losses, damages and future risk were collected through focus group discussion, key informants’ interview, observation, and measurement. A total of 79 landslides, 13 rock falls, 5 debris flow and one site of river damming were identified and mapped. The losses and damages included private and public buildings, cultivated land, crops and other infrastructure such as trails, canals for hydropower plant. The losses and damages associated with landslide and debris flow induced by earthquake is comparatively higher than the losses and damages from other geomorphic hazards such as rock fall and landslide dam and landslide dam outburst flood. The risk from those geo-hazards induced by earthquake is also high. Community mobilization with activities of regular monitoring of those hazards, skill development for rescue operation, design and implementation of mitigation measures are some of the efforts necessary for better management of disaster risk.

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18

Huang, Haifeng, Jingjing Long, Wu Yi, Qinglin Yi, Guodong Zhang y Bangjun Lei. "A method for using unmanned aerial vehicles for emergency investigation of single geo-hazards and sample applications of this method". Natural Hazards and Earth System Sciences 17, n.º 11 (20 de noviembre de 2017): 1961–79. http://dx.doi.org/10.5194/nhess-17-1961-2017.

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Abstract. In recent years, unmanned aerial vehicles (UAVs) have become widely used in emergency investigations of major natural hazards over large areas; however, UAVs are less commonly employed to investigate single geo-hazards. Based on a number of successful investigations in the Three Gorges Reservoir area, China, a complete UAV-based method for performing emergency investigations of single geo-hazards is described. First, a customized UAV system that consists of a multi-rotor UAV subsystem, an aerial photography subsystem, a ground control subsystem and a ground surveillance subsystem is described in detail. The implementation process, which includes four steps, i.e., indoor preparation, site investigation, on-site fast processing and application, and indoor comprehensive processing and application, is then elaborated, and two investigation schemes, automatic and manual, that are used in the site investigation step are put forward. Moreover, some key techniques and methods – e.g., the layout and measurement of ground control points (GCPs), route planning, flight control and image collection, and the Structure from Motion (SfM) photogrammetry processing – are explained. Finally, three applications are given. Experience has shown that using UAVs for emergency investigation of single geo-hazards greatly reduces the time, intensity and risks associated with on-site work and provides valuable, high-accuracy, high-resolution information that supports emergency responses.

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19

McBean, E., G. Huang, Yongping Li, Yanfeng Li, Aili Yang y Haiyan Fu. "Ceramic Water Filters as a Response Technology to Geo-Hazards". Global Environmental Engineers 5, n.º 1 (3 de junio de 2018): 1–8. http://dx.doi.org/10.15377/2410-3624.2018.05.1.

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20

WYSOCKA, M. "Radon in the investigations of geo-hazards in Polish collieries". Geofluids 10, n.º 4 (24 de agosto de 2010): 564–70. http://dx.doi.org/10.1111/j.1468-8123.2010.00306.x.

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21

Hao, Wen Xin, Feng Ding, Li Jie Wang y En Man Wang. "Zoning and Prevention Measures for Geo-Hazard of Youyu County, Shanxi Province". Advanced Materials Research 1073-1076 (diciembre de 2014): 395–99. http://dx.doi.org/10.4028/www.scientific.net/amr.1073-1076.395.

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This paper studies the influence factor and the mechanism of geo-hazard with quantitative methods. Youyu County can be divided into1 low susceptible zone,6 middle susceptible areas, and 2 high susceptible zones, whose percentage respectively is 11.11%,66.67%,22.22%.Finally the authors put forward countermeasures to geo-hazards in Youyu County.

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22

He, Yong Qiang, Tian Zhu Lan y Yong Hui Bi. "An Application of Risk Assessment of Geo-Hazards in Highway Engineering". Applied Mechanics and Materials 744-746 (marzo de 2015): 1753–57. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.1753.

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With the development of our economy, highway becoming more and more important for our lives. While the construction of the highway will cause many geo-hazards such as landslide, Collapse, Debris Flow and loess collapse etc. , based on the highway of S208, the types and character were analyzed in The paper, then their hazards were evaluated, it can be supplied a necessary basement for letter prediction and evaluation and comprehensive zoning evaluation.

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23

Peng, Feng Ling, Hong Hui Wang, Xian Guo Tuo, Jian Hua Pu, Jun Ren y Lin Mu. "Geo-Hazards Monitoring and Early Warning System Based on JSP Technology". Applied Mechanics and Materials 421 (septiembre de 2013): 838–43. http://dx.doi.org/10.4028/www.scientific.net/amm.421.838.

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This paper proposes an implementation method and technique of Geo-hazards monitoring and early warning system. By analyzing the deficiencies of traditional method about early warning system, we propose a web platform structure based on JSP file to design and achieve an early warning system which integrates real-time data receiving, processing, mapping, managing and automatic alarm .The system uses tomcat as web server, and the platform structure is divided into several modules which are designed as owning scientific and rigorous algorithm respectively. After the actual tests the system not only can display data diversely, but also can send SMS to different people for early warning on different levels according to the changes of the data received by SMS cat. The results prove that the system has good stability, reliability, scalability and maintainability.

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24

Sulli, A., M. Agate, E. Zizzo, M. Gasparo Morticelli y C. Lo Iacono. "Geo-hazards of the San Vito peninsula offshore (southwestern Tyrrhenian Sea)". Journal of Maps 17, n.º 3 (17 de enero de 2021): 185–96. http://dx.doi.org/10.1080/17445647.2020.1866703.

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25

Cheng, Yuxiang, Jun Zhang y Jianbing Peng. "ArcGIS-based evaluation of geo-hazards at Yaozhou County, Shaanxi, China". Journal of Rock Mechanics and Geotechnical Engineering 5, n.º 4 (agosto de 2013): 330–34. http://dx.doi.org/10.1016/j.jrmge.2012.11.002.

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26

Laming, Deryck. "GEO-HAZARDS: GEOSCIENTISTS DISCUSS NATURAL HAZARDS Call for greater commitment from Governments for Third World disaster research". Terra Nova 1, n.º 6 (noviembre de 1989): 507–8. http://dx.doi.org/10.1111/j.1365-3121.1989.tb00423.x.

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27

Pichura, V. "Geo-modeling of water-erosion processes in the Dnieper River basin". Agroecological journal, n.º 4 (17 de diciembre de 2016): 66–75. http://dx.doi.org/10.33730/2077-4893.4.2016.271213.

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The paper presents the internal structure of the geomorphological system and performs geo-modeling of water-erosion processes in the basin of the Dnieper river. As a result of hydrological geo-modeling, the study identifies 776 basins of orders IV–IX and determines the total length of the erosion network of the transborder basin. Based on GIS technology, it creates spatial raster models of the distribution of the values of factors influencing potential hazards of soil erosion; assesses erosion hazards using the modified RUSLE (Revised Universal Soil Loss Equation) model; calculates the potential of annual soil loss of arable land, and presents a spatial gradation of potential erosive violations of sub-basins of various orders in the area of the Dnieper river basin.

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28

Vergara, Iván, Stella M. Moreiras, Diego Araneo y René Garreaud. "Geo-climatic hazards in the eastern subtropical Andes: distribution, climate drivers and trends". Natural Hazards and Earth System Sciences 20, n.º 5 (20 de mayo de 2020): 1353–67. http://dx.doi.org/10.5194/nhess-20-1353-2020.

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Abstract. Detecting and understanding historical changes in the frequency of geo-climatic hazards (G-CHs) is crucial for the quantification of current hazards and project them into the future. Here we focus in the eastern subtropical Andes (32–33∘ S), using meteorological data and a century-long inventory of 553 G-CHs triggered by rainfall or snowfall. We first analyse their spatio-temporal distributions and the role of climate variability in the year-to-year changes in the number of days per season with G-CHs. Precipitation is positively correlated with the number of G-CHs across the region and year-round; mean temperature is negatively correlated with snowfall-driven hazards in the western (higher) half of the study region during winter and with rainfall-driven hazards in the eastern zone during summer. The trends of the G-CH frequency since the mid-20th century were calculated, paying attention to their non-systematic monitoring. The G-CH series for the different triggers, zones and seasons were generally stationary. Nonetheless, there is a small positive trend in rainfall-driven G-CHs in the eastern zone during summer, congruent with a rainfall increase there. We also found a decrease in snowfall-driven G-CHs in the western zone from the late 1990s onwards, most likely due to a reduction in winter precipitation rather than to an increase in temperature.

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29

Cheng, Yu Xiang y Ai Di Huo. "Geo-Hazard Susceptibility Fuzzy Comprehensive Evaluation in Huangling County". Advanced Materials Research 433-440 (enero de 2012): 2059–63. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.2059.

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The evaluation result of geo-hazard susceptibility is an important basis for its prevention planning. Relying on survey result of the geo-hazard detailed research project in Huangling County ,choose slope gradient, slope height, Stratum structure, groundwater, integral extent of rock and soil, rigidity extent of rock and soil, maximum rainfall, maximum rainfall intensity, vegetation coverage, impact of human activities as the geo-hazard susceptibility evaluation factors. The susceptibility evaluation zoning of geo-hazards in Huangling County is performed using fuzzy comprehensive evaluation method. The evaluation result is divided into three degrees.Study area is divided into high-prone, middle- prone and low –prone. Geo-hazard high-prone areas is mainly distributed in Juhe River valley and Koujia River valley where have loess slope or slope in alternating layers of thin layered semi-hard hard rock and middle layered hard rock,and widely disturbance to geological environment from the construction of city, town, road , railway and so on.

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30

Camerlenghi, A., R. Urgeles, G. Ercilla y W. Brückmann. "Scientific Ocean Drilling Behind the Assessment of Geo-Hazards from Submarine Slides". Scientific Drilling 4 (1 de marzo de 2007): 45–47. http://dx.doi.org/10.5194/sd-4-45-2007.

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31

Cheng, Xianfeng, Wufu Qi, Qianrui Huang, Xueqiong Zhao, Rong Fang y Jun Xu. "Typical Geo-Hazards and Countermeasures of Mines in Yunnan Province, Southwest China". IOP Conference Series: Earth and Environmental Science 44 (octubre de 2016): 022008. http://dx.doi.org/10.1088/1755-1315/44/2/022008.

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32

Arnous, Mohamed O., Hamdy A. Aboulela y David R. Green. "Geo-environmental hazards assessment of the north western Gulf of Suez, Egypt". Journal of Coastal Conservation 15, n.º 1 (24 de agosto de 2010): 37–50. http://dx.doi.org/10.1007/s11852-010-0118-z.

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33

Chen, Xiao-qing, Yong Li, Quan Gao y Shi-tao Jia. "Distribution characteristics of Geo-hazards in Ganxi Valley after the Wenchuan earthquake". Environmental Earth Sciences 65, n.º 4 (25 de marzo de 2011): 965–73. http://dx.doi.org/10.1007/s12665-011-1018-8.

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34

Chen, F., H. Lin, Y. Zhang y Z. Lu. "Ground subsidence geo-hazards induced by rapid urbanization: implications from InSAR observation and geological analysis". Natural Hazards and Earth System Sciences 12, n.º 4 (12 de abril de 2012): 935–42. http://dx.doi.org/10.5194/nhess-12-935-2012.

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Abstract. Due to the convenient transportation and construction, cities are prone to be situated in areas with flat terrain and unstable sediments, resulting in the concurrence of ground subsidence and urbanization. Here the interaction between geology, anthropogenic processes and ground subsidence geo-hazards were investigated in the Greater Pearl River Delta region of China. Geological evidences and 2006–2010 persistent scatterer data indicate that anthropogenic activities are dominant, although the distribution of river system and Quaternary sediments are also highly related to significant displacements (primarily at a rate of −15 to 15 mm a−1). The surface displacements derived by synthetic aperture radar interferometry suggest that the urbanization rhythm has to be routinely monitored. Considering analogous urbanization modes, particularly in developing countries, ground subsidence monitoring together with the analysis of its driving force are critical for geo-hazards early-warning, city planning as well as sustainable urbanization.

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35

Noack, S., A. Knobloch, S. H. Etzold, A. Barth y E. Kallmeier. "Spatial predictive mapping using artificial neural networks". ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-2 (11 de noviembre de 2014): 79–86. http://dx.doi.org/10.5194/isprsarchives-xl-2-79-2014.

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The modelling or prediction of complex geospatial phenomena (like formation of geo-hazards) is one of the most important tasks for geoscientists. But in practice it faces various difficulties, caused mainly by the complexity of relationships between the phenomena itself and the controlling parameters, as well by limitations of our knowledge about the nature of physical/ mathematical relationships and by restrictions regarding accuracy and availability of data. <br><br> In this situation methods of artificial intelligence, like artificial neural networks (ANN) offer a meaningful alternative modelling approach compared to the exact mathematical modelling. <br><br> In the past, the application of ANN technologies in geosciences was primarily limited due to difficulties to integrate it into geo-data processing algorithms. In consideration of this background, the software advangeo® was developed to provide a normal GIS user with a powerful tool to use ANNs for prediction mapping and data preparation within his standard ESRI ArcGIS environment. In many case studies, such as land use planning, geo-hazards analysis and prevention, mineral potential mapping, agriculture & forestry advangeo® has shown its capabilities and strengths. The approach is able to add considerable value to existing data.

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36

Mandarino, Andrea, Francesco Faccini, Martino Terrone y Guido Paliaga. "Anthropogenic landforms and geo-hydrological hazards of the Bisagno Stream catchment (Liguria, Italy)". Journal of Maps 17, n.º 3 (24 de enero de 2021): 122–35. http://dx.doi.org/10.1080/17445647.2020.1866704.

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37

QIU, Jiandong, Jian LIU, Xianghuai KONG, Yong ZHANG, Baojing YUE, Junqiang ZHANG y Lisha SUN. "MARINE GEO-HAZARDS IN THE COASTAL AND OFFSHORE AREA OF SOUTHERN SHANDONG PENINSULA". Marine Geology & Quaternary Geology 32, n.º 1 (23 de noviembre de 2012): 27–34. http://dx.doi.org/10.3724/sp.j.1140.2012.01027.

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38

Ekmekcioğlu, Ömer y Kerim Koc. "Explainable step-wise binary classification for the susceptibility assessment of geo-hydrological hazards". CATENA 216 (septiembre de 2022): 106379. http://dx.doi.org/10.1016/j.catena.2022.106379.

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39

HIGAKI, Daisuke, Shu-ichi HASEGAWA, Hiroshi YAGI y Akihiko WAKAI. "Emergency survey report on geo-hazards caused by the Gorkha earthquake in Nepal". Journal of the Japan Landslide Society 52, n.º 4 (2015): 203–6. http://dx.doi.org/10.3313/jls.52.203.

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40

Terrinha, Pedro, Henrique Duarte, Pedro Brito, João Noiva, Carlos Ribeiro, Rachid Omira, Maria Ana Baptista, Miguel Miranda, Vitor Magalhães y Cristina Roque. "The Tagus River delta landslide, off Lisbon, Portugal. Implications for Marine geo-hazards". Marine Geology 416 (octubre de 2019): 105983. http://dx.doi.org/10.1016/j.margeo.2019.105983.

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41

Wu, Y. "Mechanism analysis of hazards caused by the interaction between groundwater and geo-environment". Environmental Geology 44, n.º 7 (1 de octubre de 2003): 811–19. http://dx.doi.org/10.1007/s00254-003-0819-9.

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42

Xu, Ye-Shuang, De-Xuan Zhang, Shui-Long Shen y Long-Zhu Chen. "Geo-hazards with characteristics and prevention measures along the coastal regions of China". Natural Hazards 49, n.º 3 (10 de octubre de 2008): 479–500. http://dx.doi.org/10.1007/s11069-008-9296-5.

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43

Nji Fogwe, Zephania. "Mitigating and Managing Regional Geo-environmental Hazards within a Decentralisation Transition in Cameroon". Journal of Human Ecology 30, n.º 3 (junio de 2010): 187–95. http://dx.doi.org/10.1080/09709274.2010.11906288.

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44

Yang, Yu-You, Ye-Shuang Xu, Shui-Long Shen, Yao Yuan y Zhen-Yu Yin. "Mining-induced geo-hazards with environmental protection measures in Yunnan, China: an overview". Bulletin of Engineering Geology and the Environment 74, n.º 1 (24 de abril de 2014): 141–50. http://dx.doi.org/10.1007/s10064-014-0608-6.

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45

Ranguelov, Boyko. "Marinegeohazards project – an early warning system in the BLACK SEA". Journal scientific and applied research 1, n.º 1 (3 de marzo de 2012): 14–22. http://dx.doi.org/10.46687/jsar.v1i1.11.

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The general frame of the BG-ROM MARINEGEOHAZARDS Project is considered. The Project is about set-up and implementation of the key core components of a regional early-warning system for marine geohazards of risk to the Romanian-Bulgarian Black Sea costal area The main focus is on the data and informa-tion about the investigations related to the creation of the marine geo hazards early warning system. The target topics are on the earthquakes, landslides, tsunamis, floods and similar natural hazards. Maps and schemas about the main hazards have been created for the Bulgaria-Romania cross border area – both in marine and coastal environment. The typology and quantification of the hazards and their dangerous elements support the key core elements selection and the infrastructure of the early warning system targeted to the population and society safety.

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46

Wang, Z., S. Zlatanova y John Steenbruggen. "TRAFFIC INCIDENT MANAGEMENT IN THE PRESENCE OF HAZARDS". ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences III-4/W1 (25 de agosto de 2016): 45–49. http://dx.doi.org/10.5194/isprs-annals-iii-4-w1-45-2016.

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Traffic incidents can result in different kinds of hazards (e.g., plumes) that influence the status of road networks, therefore there is a great need for incident management in the presence of the hazards. When incidents occur, the created hazards not only affect the normal road users (make them detour or blocked), but also influence the movement of first responders. Traffic managers, who are responsible for maintaining the road safety and traffic stability, should carry out quick and effective measures to manage the incidents. In this paper, we present four issues to help people better understand the situations that could occur in the management of incidents with hazards: 1). Evacuation in the presence of hazards; 2). 3D incident management; 3). Navigation support for first responders; 4). Navigation support for road users. To address these issues, we propose a solution which combines agent technology, geo-database, hazard simulation, and traffic simulation. Further research would be needed to investigate the potentials of the proposed solution in real applications.

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47

Wang, Z., S. Zlatanova y J. Steenbruggen. "TRAFFIC INCIDENT MANAGEMENT IN THE PRESENCE OF HAZARDS". ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences IV-4/W1 (5 de septiembre de 2016): 45–49. http://dx.doi.org/10.5194/isprs-annals-iv-4-w1-45-2016.

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Traffic incidents can result in different kinds of hazards (e.g., plumes) that influence the status of road networks, therefore there is a great need for incident management in the presence of the hazards. When incidents occur, the created hazards not only affect the normal road users (make them detour or blocked), but also influence the movement of first responders. Traffic managers, who are responsible for maintaining the road safety and traffic stability, should carry out quick and effective measures to manage the incidents. In this paper, we present four issues to help people better understand the situations that could occur in the management of incidents with hazards: 1). Evacuation in the presence of hazards; 2). 3D incident management; 3). Navigation support for first responders; 4). Navigation support for road users. To address these issues, we propose a solution which combines agent technology, geo-database, hazard simulation, and traffic simulation. Further research would be needed to investigate the potentials of the proposed solution in real applications.

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48

Seijmonsbergen, A. C. y L. W. S. de Graaff. "Geomorphological mapping and geophysical profiling for the evaluation of natural hazards in an alpine catchment". Natural Hazards and Earth System Sciences 6, n.º 2 (15 de marzo de 2006): 185–93. http://dx.doi.org/10.5194/nhess-6-185-2006.

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Abstract. Liechtenstein has faced an increasing number of natural hazards over recent decades: debris flows, slides, snow avalanches and floods repeatedly endanger the local infrastructure. Geomorphological field mapping and geo-electrical profiling was used to assess hazards near Malbun, a village potentially endangered by landslides, and especially debris flows. The area is located on the tectonic contacts of four different nappe slices. The bedrock consists of anhydrite and gypsum, dolomite, shale, marl, and limestone. The spatial distribution and occurrence of debris flows and slides is evaluated through a combination of geomorphological expert knowledge, and detailed visualization in a geographical information system. In a geo-database a symbol-based 1:3000 scale geomorphological map has been digitized and rectified into polygons. The polygons include information on the main geomorphological environment, the Quaternary material distribution and of geomorphological processes, which are stored in attribute tables. The spatial distribution of these attributes is then combined with geophysical information and displacement rates interpolated from benchmark measurements. On one of the landslides two geo-electrical profiles show that the distance to a potential failure plane varies between 10-20 m and that the topography of the failure plane is influenced by subterranean gypsum karst features. The displacement measurements show that this landslide actively disintegrates into minor slides and is not, therefore, a risk to the village of Malbun. The hazard zonation indicates that debris flows can pose a risk if no countermeasures are taken. Gypsum karst may locally accelerate the landslide activity. In contrast, the impact of debris flows is diminished because collapse dolines may act as sediment traps for the debris flow materials. This research illustrates how geomorphological expert knowledge can be integrated in a GIS for the evaluation of natural hazards on a detailed scale.

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49

Balasis, Georgios y Angelo De Santis. "Editorial of Special Issue “Detecting Geospace Perturbations Caused by Earth”". Geosciences 11, n.º 12 (6 de diciembre de 2021): 496. http://dx.doi.org/10.3390/geosciences11120496.

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A systematic multiparametric and multiplatform approach to detect and study geo-space perturbations attributed to preparation processes related to natural hazards is fundamental in order to obtain useful insights on a series of complex dynamic phenomena of the Earth system, namely, earthquakes, volcanic and Saharan dust events, as well as geomagnetic disturbances [...]

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50

Ju, C. Y., Y. G. Jia, H. X. Shan, C. W. Tang y W. J. Ma. "GIS-based coastal area suitability assessment of geo-environmental factors in Laoshan district, Qingdao". Natural Hazards and Earth System Sciences 12, n.º 1 (17 de enero de 2012): 143–50. http://dx.doi.org/10.5194/nhess-12-143-2012.

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Abstract. With increasing urbanization, particularly in the coastal regions of developing countries, the development of disaster management schemes is needed as the losses from a single event can destroy decades of development and threaten local populations, buildings and infrastructure. Geo-environmental suitability is often evaluated systematically in order to assess the nature of hazards and their potential damage to human life, land, buildings and other property. A suitability assessment will indicate the priorities for geological and environmental hazard management. This paper presents a geological environment suitability assessment that aims to identify grading in a current seaside urban development and develop practices to aid in the identification of hidden geological and environmental hazards. The Laoshan area in the city of Qingdao was used as a case study because it constitutes a good example of a developing city with geological and environmental threats. Also, urban plans have been drawn up here with insufficient or absent information on losses from potential natural hazards.

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