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The objective of this study was to assess the effect of shoreline retreat and dune erosion on coastal flooding in a case study located in the southern coast of Rhode Island, USA. Using an extensive dataset collected during 2011, an ADCIRC model was developed to simulate the propagation of storm surge in the coastal areas, including coastal inlets and ponds. A simplified methodology, based on the geological assessment of historical trends of the shoreline retreat and dune erosion in this area, was incorporated in the model to represent coastal erosion. The results showed that for extreme storms (e.g., a 100-year event), where coastal dunes are overtopped and low-lying areas are flooded, the flooding extent is not significantly sensitive to coastal erosion. However, failure of the dunes leads to a significant increase of the flooding extent for smaller storms. Substantial dampening of the storm surge elevation in coastal ponds for moderate and small storms was associated with coastal inlets connecting to coastal ponds which are often not resolved in regional surge models. The shoreline change did not significantly affect the extent of flooding. It was also shown that the accuracy of a storm surge model highly depends on its ability to resolve coastal inlets, which is critical for reliable storm surge predictions in areas with inlet-basin systems.

In subway construction, the presence of boulders can significantly impact excavation and tunneling processes. However, despite these challenges, an effective and reliable method for detecting boulders in advance has not yet been established. This paper presents a novel method for detecting and characterizing boulders using 3D cross-hole electrical resistivity tomography (ERT). The proposed technique involves the strategic deployment of multiple borehole electrodes, which work together to create a comprehensive three-dimensional resistivity model of the subsurface. This model allows for the identification and characterization of boulders, providing crucial information about their location and size. We demonstrate the efficacy of this approach in a physical flume experiment and a case study of subway construction, The findings from both the laboratory and field studies indicate that the 3D cross-hole ERT method is not only effective in detecting boulders and providing detailed information about their size and spatial distribution but also optimizes construction planning, reduces unexpected disruptions and additional costs, and enhances overall construction safety. The results highlight the potential of 3D cross-hole ERT as a valuable tool for geological assessments during infrastructure development.

Geological hazards often occur in mountainous areas and are sudden and hidden, so it is important to identify and assess geological hazards. In this paper, the western mountainous area of Beijing was selected as the study area. We conducted research on landslides, collapses, and unstable slopes in the study area. The surface deformation of the study area was monitored by multi-temporal interferometric synthetic aperture radar (MT-InSAR), using a combination of multi-looking point selection and permanent scatterer (PS) point selection methods. Random forest (RF), support vector machine (SVM), convolutional neural network (CNN), and recurrent neural network (RNN) models were selected for the assessment of geological hazard susceptibility. Sixteen geological hazard-influencing factors were collected, and their information values were calculated using their features. Multicollinearity analysis with the relief-F method was used to calculate the correlation and importance of the factors for factor selection. The results show that the deformation rate along the line-of-sight (LOS) direction is between −44 mm/year and 28 mm/year. A total of 60 geological hazards were identified by combining surface deformation with optical imagery and other data, including 7 collapses, 25 unstable slopes, and 28 landslides. Forty-eight of the identified geological hazards are not recorded in the Beijing geological hazards list. The most effective model in the study area was RF. The percentage of geological hazard susceptibility zoning in the study area is as follows: very low susceptibility 27.40%, low susceptibility 28.06%, moderate susceptibility 21.19%, high susceptibility 13.80%, very high susceptibility 9.57%.

This study details the design and implementation of a high-gain Yagi-Uda antenna network for the transmission of real-time monitoring data from the Misti Volcano to the city of Arequipa. As Misti is classified as a high-risk volcano due to its active volcanic nature and the close proximity of nearly one million inhabitants, the current monitoring infrastructure is insufficient to meet the demands of effective surveillance. In response, this project integrates Internet of Things (IoT) technology, the LoRa (Long Range) network, and an optimized seven-element Yagi-Uda antenna, developed using advanced optimization algorithms to enhance transmission efficiency. The primary objective is to facilitate the reliable collection and transmission of critical sensor data for subsequent analysis by volcanological experts, thereby supporting improved prediction and mitigation of potential volcanic hazards. Field tests have demonstrated that the Yagi-Uda antenna, when coupled with LoRa technology, achieved uninterrupted data transmission over a distance of 16 km. The integration of IoT, LoRa, and the optimized antenna design offers a scalable and resilient solution for the continuous monitoring and risk assessment of Misti, enabling the incorporation of advanced high-precision sensors for enhanced surveillance capabilities.

The present paper addresses methods for formalization of engineering geological complexity of urban territory based on engineering geological zoning for purposes of urban and spatial planning. Presented is distinguishing three main sets of issues for purposes of urban development complex, improvement of environmental management and assessment of engineering geological complexity distribution, issues being addressed at two levels: at the city level--mapping the engineering geological complexity to scale of 1: 100000 and at municipal level--engineering geological complexity maps to scale of 1: 25000 with derivation of taxonomic formula of geological hazard; at that, cartographical materials are proposed as open data. For the first time it is proposed to use the complexity index and to plot the diversity curves for negative geological processes. Results of distribution analysis for complexity of engineering geological conditions made it possible to reveal a relatively low complexity of the structural uplift megamassif at the territory of the city of Moscow. The proposed methods shall help to develop \"geoecological image\" of the city and be used for better understanding of geoecological problems related to the city development.

The relevance of the study is dictated by the growing role of the fuel and energy complex of developing countries in the decarbonization of the economy. The article discusses the digital transformation of mining enterprises in Kazakhstan, taking into account the transition to CRIRSCO international standards and growing competition in the global mineral market. The purpose of the study is to assess the current level of digitalization of the mining industry in Kazakhstan and to deepen the methodological apparatus of the geological and economic assessment of the enterprise based on the factual base of deposits. The role of the transformation of the mining sector in achieving the sustainability of the poorly diversified economy of Kazakhstan is shown. The importance of digitalization of the industry to complete the transition to CRIRSCO international standards and improve the assessment of the digital provision of enterprises in order to optimize their financial and economic policies is argued. It has been established that, at present, most of the enterprises in the investment-attractive mining sector have a low potential for the transition to a new technological paradigm. A methodological approach to the geological and economic assessment of these enterprises has been developed. To maintain high standards of management transparency through the digitalization of key business processes, along with well-known practices of economic analysis, the IDEF1 methodology was used. In order to expand the software ecosystem, the formats of electronic geological and economic databases are integrated into the digital infrastructure of the enterprise. It is substantiated that the introduction of high technologies in the mining industry requires institutional changes and coordinated interaction between the state, business, and universities as equal partners.

In this study, the geological disasters in Guizhou Province serve as the research object, and a systematic susceptibility evaluation is conducted in light of the province’s prominent problems with frequent geological disasters. The current research primarily focuses on the application of a single model, often with deficiencies in factor interpretation. It has not yet systematically integrated the advantages of the traditional information model and multiple machine learning algorithms, nor introduced interpretable methods to analyze the disaster mechanism deeply. In this study, the information value (IV) model is combined with machine learning algorithms—logistic regression (LR), decision tree (DT), support vector machine (SVM), random forest (RF), and extreme gradient boosting (XGBoost)—to construct a coupling model to evaluate the susceptibility to geological disasters. Combined with the Bayesian optimization algorithm, the geological disaster susceptibility evaluation model is built. The confusion matrix and receiver operating characteristic (ROC) curve were used to evaluate the model’s accuracy. The Shapley Additive exPlanations (SHAP) method is used to quantify the contribution of each influencing factor, thereby improving the transparency and credibility of the model. The results show that the coupling models, especially the IV-XGB model, achieved the best performance (AUC = 0.9448), which significantly identifies the northern Wujiang River Basin and the central karst core area as high-risk areas and clarifies the disaster-causing mechanism of “terrain–hydrology–human activities” coupling. The SHAP method further identified that NDVI, land use type, and elevation were the predominant controlling factors. This study presents a high-precision and interpretable modeling method for assessing susceptibility to geological disasters, providing a scientific basis for disaster prevention and control in Guizhou Province and similar geological conditions.

PURPOSE: A 60.8-acre fee-to-trust land acquisition and the subsequent development of a destination resort and casino in the City of Calexico, Imperial County, California are proposed. The Manzanita Band of the Kumeyaay Indians (Tribe) submitted an application to the Bureau of Indian Affairs to take the land into federal trust status and the proposed action includes the potential approval by the National Indian Gaming Commission of a gaming management contract between the Tribe and an unknown party. A lack of economic development opportunities exists for the Tribe primarily due to a lack of funds for project development and the lack of developable land available on the reservation. The majority of the Tribe is within the low to moderate household income level and unemployed. Key issues identified during scoping include socioeconomic effects on the local community, impacts to other tribes in the region, air quality, traffic, and potential impacts of an off-reservation casino location on the Tribe and the urban community of Calexico. Two development alternatives and a No Action Alternative (Alternative C) are analyzed in this final EIS. Under Alternative A, the proposed complex would include a 200-room hotel, gaming area, restaurants and lounges, retail, meeting and assembly spaces, entertainment and recreation spaces, and 6,000 surface and garage parking spaces. Alternative B would involve development of a casino on the same project site, but with a smaller gaming area footprint. Domestic water for the project, estimated at 91,200 gallons per day, would be provided by the City of Calexico. The average daily wastewater flow is estimated at 37,365 gallons per day. POSITIVE IMPACTS: Project implementation would improve the socioeconomic status of the Tribe by providing a revenue source that could be used to strengthen the Tribal government and establish self-sufficiency. Funds for a variety of social, housing, governmental, administrative, educational, health and welfare services would improve the quality of life of Tribal members. Operation of the complex proposed under Alternative A would provide employment opportunities for 2,400 persons from the Tribal community, Calexico, and Imperial County. NEGATIVE IMPACTS: Seismicity and the presence of expandable and collapsible soils require geotechnical evaluation and mitigation. Grading requirements could alter existing drainage patterns and cause erosion and siltation. Construction would generate fugitive dust and emissions, disturb plant communities, and remove habitat for sensitive species such as the yellow warbler and the western burrowing owl. The proposed casino has the potential to increase problem and pathological gambling, thereby encouraging illegal acts. LEGAL MANDATES: Federal Water Pollution Control Act of 1972 (33 U.S.C. 1251 et seq.) and Indian Gaming Regulatory Act (25 U.S.C. 2701 et seq.). PRIOR REFERENCES: For the abstract of the draft EIS, see 10-0344D, Volume 34, Number 2.

PURPOSE: A 60.8-acre fee-to-trust land acquisition and the subsequent development of a destination resort and casino in the City of Calexico, Imperial County, California are proposed. The Manzanita Band of the Kumeyaay Indians (Tribe) submitted an application to the Bureau of Indian Affairs to take the land into federal trust status and the proposed action includes the potential approval by the National Indian Gaming Commission of a gaming management contract between the Tribe and an unknown party. A lack of economic development opportunities exists for the Tribe primarily due to a lack of funds for project development and the lack of developable land available on the reservation. The majority of the Tribe is within the low to moderate household income level and unemployed. Key issues identified during scoping include socioeconomic effects on the local community, impacts to other tribes in the region, air quality, traffic, and potential impacts of an off-reservation casino location on the Tribe and the urban community of Calexico. Two development alternatives and a No Action Alternative (Alternative C) are analyzed in this final EIS. Under Alternative A, the proposed complex would include a 200-room hotel, gaming area, restaurants and lounges, retail, meeting and assembly spaces, entertainment and recreation spaces, and 6,000 surface and garage parking spaces. Alternative B would involve development of a casino on the same project site, but with a smaller gaming area footprint. Domestic water for the project, estimated at 91,200 gallons per day, would be provided by the City of Calexico. The average daily wastewater flow is estimated at 37,365 gallons per day. POSITIVE IMPACTS: Project implementation would improve the socioeconomic status of the Tribe by providing a revenue source that could be used to strengthen the Tribal government and establish self-sufficiency. Funds for a variety of social, housing, governmental, administrative, educational, health and welfare services would improve the quality of life of Tribal members. Operation of the complex proposed under Alternative A would provide employment opportunities for 2,400 persons from the Tribal community, Calexico, and Imperial County. NEGATIVE IMPACTS: Seismicity and the presence of expandable and collapsible soils require geotechnical evaluation and mitigation. Grading requirements could alter existing drainage patterns and cause erosion and siltation. Construction would generate fugitive dust and emissions, disturb plant communities, and remove habitat for sensitive species such as the yellow warbler and the western burrowing owl. The proposed casino has the potential to increase problem and pathological gambling, thereby encouraging illegal acts. LEGAL MANDATES: Federal Water Pollution Control Act of 1972 (33 U.S.C. 1251 et seq.) and Indian Gaming Regulatory Act (25 U.S.C. 2701 et seq.). PRIOR REFERENCES: For the abstract of the draft EIS, see 10-0344D, Volume 34, Number 2.

PURPOSE: A 60.8-acre fee-to-trust land acquisition and the subsequent development of a destination resort and casino in the City of Calexico, Imperial County, California are proposed. The Manzanita Band of the Kumeyaay Indians (Tribe) submitted an application to the Bureau of Indian Affairs to take the land into federal trust status and the proposed action includes the potential approval by the National Indian Gaming Commission of a gaming management contract between the Tribe and an unknown party. A lack of economic development opportunities exists for the Tribe primarily due to a lack of funds for project development and the lack of developable land available on the reservation. The majority of the Tribe is within the low to moderate household income level and unemployed. Key issues identified during scoping include socioeconomic effects on the local community, impacts to other tribes in the region, air quality, traffic, and potential impacts of an off-reservation casino location on the Tribe and the urban community of Calexico. Two development alternatives and a No Action Alternative (Alternative C) are analyzed in this final EIS. Under Alternative A, the proposed complex would include a 200-room hotel, gaming area, restaurants and lounges, retail, meeting and assembly spaces, entertainment and recreation spaces, and 6,000 surface and garage parking spaces. Alternative B would involve development of a casino on the same project site, but with a smaller gaming area footprint. Domestic water for the project, estimated at 91,200 gallons per day, would be provided by the City of Calexico. The average daily wastewater flow is estimated at 37,365 gallons per day. POSITIVE IMPACTS: Project implementation would improve the socioeconomic status of the Tribe by providing a revenue source that could be used to strengthen the Tribal government and establish self-sufficiency. Funds for a variety of social, housing, governmental, administrative, educational, health and welfare services would improve the quality of life of Tribal members. Operation of the complex proposed under Alternative A would provide employment opportunities for 2,400 persons from the Tribal community, Calexico, and Imperial County. NEGATIVE IMPACTS: Seismicity and the presence of expandable and collapsible soils require geotechnical evaluation and mitigation. Grading requirements could alter existing drainage patterns and cause erosion and siltation. Construction would generate fugitive dust and emissions, disturb plant communities, and remove habitat for sensitive species such as the yellow warbler and the western burrowing owl. The proposed casino has the potential to increase problem and pathological gambling, thereby encouraging illegal acts. LEGAL MANDATES: Federal Water Pollution Control Act of 1972 (33 U.S.C. 1251 et seq.) and Indian Gaming Regulatory Act (25 U.S.C. 2701 et seq.). PRIOR REFERENCES: For the abstract of the draft EIS, see 10-0344D, Volume 34, Number 2.