Acta Geophysica最新文献

{"title":"Characteristics of earthquake sequences and seismogenic background around Jiaokou Reservoir, eastern China","authors":"Yajing Gao,&nbsp;Zhenjie Wang,&nbsp;Qi Zhang,&nbsp;Yunqiang Sun","doi":"10.1007/s11600-024-01430-3","DOIUrl":"10.1007/s11600-024-01430-3","url":null,"abstract":"<div><p>The Jiaokou Reservoir area is one of the areas with relatively frequent seismicity in Zhejiang, eastern China. We made an analysis and summary of seismicity near Jiaokou Reservoir from 1982 to 2022 using data such as seismic waveforms from stations, earthquake catalogs, and seismic observation reports. Firstly, we analyzed spatiotemporal variations of historical seismicity and <i>b-</i>values of earthquake sequences around Jiaokou Reservoir in different periods. Then, we used the HypoDD method to relocate events after 2008, and used CAP and HASH methods to obtain focal mechanisms of events with <i>M</i>_<i>L</i> ≥ 3.0 after 2008. Finally, we analyzed the characteristics of earthquake distribution, stress field, seismogenic structures, and seismogenic mechanisms in the region. The main views are as follows. (1) The relocation results indicate that the narrow-band distribution characteristics of earthquake sequences after 2008 around Jiaokou Reservoir are apparent, with a strike of roughly NW-SE 110° and a high dip angle of roughly SW 70-80°. (2) The focal mechanisms show that these events are basically left-lateral strike-slip ruptures. Combined with relocation results, we infer that the seismogenic fault is close to a nodal plane with a strike of 99°, dip of SW 73°, and rake of −5°. (3) P-axis directions of Jiaokou events are NE-SW, and T-axis directions are NW-SE, with relatively small dip angles, which show the near-horizontal compression in NE-SW and near-horizontal tension in NW-SE. The two directions of tension and compression axes are consistent with the stress field directions of eastern China. (4) Combined with the tectonic features of fault zones around Jiaokou Reservoir area, it is inferred that the main seismogenesis structures of events after 2008 may be minor strike-slip faults with a strike of NW-SE (about 99-110°) and a high dip angle of SW (about 70-80°), which are located in Changxing-Fenghua fault system. (5) Under the influence of water infiltration and corrosion in Jiaokou Reservoir, the fracture strength of underground rock decreases, the fault plane softens, and the friction strength decreases. Under the effect of reservoir water and far-field tectonic loading, the stress on the faults of Changxing-Fenghua fault system is more likely to reach a critical and unstable state, resulting in the occurrence of earthquakes around the reservoir.</p></div>","PeriodicalId":6988,"journal":{"name":"Acta Geophysica","volume":"73 2","pages":"1103 - 1115"},"PeriodicalIF":2.3,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Combined magnetic and surface wave analysis of a coal fire affected site at Barora, Jharia Coalfield, India: evidence of subsurface cavity and low velocity layers","authors":"Soumyashree Debasis Sahoo,&nbsp;Vivek Vikash,&nbsp;Sanjit Kumar Pal,&nbsp;Ram Madhav Bhattacharjee","doi":"10.1007/s11600-024-01422-3","DOIUrl":"10.1007/s11600-024-01422-3","url":null,"abstract":"<div><p>The Barora Coalfield is essential to the Jharia Coalfield as it contributes significantly to India's energy sector. The nearby areas of the Barora mine are prone to geohazards due to coal fires. The present study assesses such sites using magnetic and seismic surface wave methods. The study area has been selected based on the thermal images taken near the Barora Coalfield. Initially, the site is surveyed for magnetic data. The reduce-to-pole map of the magnetic anomaly map indicates the presence of fire beneath the surface. However, the data is found to be contaminated with near-surface magnetic debris. The centroid method analysis has been performed and found that the average curie depth is ~ 10.74 ± 0.9 m, indicating active coal fire beneath this depth. The multichannel analysis of the surface wave (MASW) method shows a variation of S-wave velocity between ~ 187 m/s to ~ 654 m/s, with an average of ~ 487 m/s. The coal seam (VIIC) at the shallow depth has been identified. The velocity gradient changes drastically after a depth of ~ 11 m, indicating sudden variation in the velocity layer. The ambient noise tomography method provides similar evidence about the coal seam (VIIC); however, the deeper coal seams remain concealed. Hence, integrated analysis of passive and active seismic data has been carried out, and it has been found that the coal seams (VIIB and VIIA) situated at ~ 25 and ~ 29 m of depth have also been affected by coal fire.</p></div>","PeriodicalId":6988,"journal":{"name":"Acta Geophysica","volume":"73 2","pages":"1393 - 1415"},"PeriodicalIF":2.3,"publicationDate":"2024-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on mechanisms of two-phase flow in digital rocks: a case of irreducible storage efficiency of CO2","authors":"Yuming Zhu,&nbsp;Wenzheng Yue","doi":"10.1007/s11600-024-01436-x","DOIUrl":"10.1007/s11600-024-01436-x","url":null,"abstract":"<div><p>Based on the computed tomography (CT) image of the plunger core, the image processing algorithms are used to construct three-dimensional (3D) digital rock models. With the constructed models, the lattice Boltzmann method (LBM) is employed to simulate the displacement of CO2 by brine, for revealing the effects of capillary number, wettability, and viscosity ratio on the relative permeability of two-phase flow. The anisotropy of the relative permeability of the digital rock model is studied by computing the relative permeability in different displacement directions. Moreover, the variations of saturation about brine and CO2 during the displacement process are investigated. On these bases, the Corey model is used to compute the irreducible saturation of CO2. At last, the influencing factors of the irreducible storage efficiency of CO2 and the methods to improve CO2 storage efficiency are discussed.</p></div>","PeriodicalId":6988,"journal":{"name":"Acta Geophysica","volume":"73 2","pages":"1417 - 1425"},"PeriodicalIF":2.3,"publicationDate":"2024-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Temporal stress perturbations generated by the Kahramanmaraş Mw 7.8 & 7.5 2023 seismic doublet in Türkiye","authors":"Mohammad Tahir,&nbsp;Bilal Saif,&nbsp;Seema Tahir,&nbsp;Mahmood Sultan,&nbsp;Talat Iqbal,&nbsp;Muhammad Ali Shah","doi":"10.1007/s11600-024-01445-w","DOIUrl":"10.1007/s11600-024-01445-w","url":null,"abstract":"<div><p>Devastating earthquakes (<i>M</i>_<i>w</i>7.8 and <i>M</i>_<i>w</i>7.6) struck Eastern Türkiye in February 2023, resulting in widespread casualties and injuries. The mechanism of both events was strike-slip having different fault plane orientations with aftershock locations following their corresponding strike directions. Tectonically, these events were associated with the Eastern Anatolian Fault system, situated at the intersection of three tectonic plates (Arabian, African, and Anatolian Plates). The <i>b</i>-value (slope of frequency magnitude distribution) of background seismic activity is investigated, showing temporal fluctuations over 9 years time period preceding the main earthquake. A systematic decreasing trend in the <i>b</i>-value, approaching its lowest value (0.71 ± 0.04) within a couple of years before the mainshock, suggests an elevated differential stress in this region. Before the mainshock, poor migration (0.05 km/day) of the events within a cluster at 37.3° – 37.5° latitude was observed. Three distinct characteristic clusters (two around the large events and a third to the south of the first event) were triggered during the aftershock sequence. The aftershock decay slope was greater than unity (<i>p</i>-value = 1.24 ± 0.02 of Omori’s law) and a duration of 9.3 ± 0.9 years was estimated for overall aftershock sequences. The first sequence (<i>M</i>_<i>w</i>7.8) has a time variant <i>p</i>-values (initially small value then increase after 5 days) depicts a heterogeneous post-seismic stress distribution as compared to the second one. These results will improve short-term aftershock forecasting and hazard mitigation.</p></div>","PeriodicalId":6988,"journal":{"name":"Acta Geophysica","volume":"73 2","pages":"1087 - 1101"},"PeriodicalIF":2.3,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crustal rheological properties provide evidence for large-scale heterogeneity in the extended Arabian Shield Crust at the Red Sea Margin","authors":"Saad Mogren,&nbsp;Manoj Mukhopadhyay,&nbsp;Basab Mukhopadhyay,&nbsp;Saju Varghese,&nbsp;Elkhedr Ibrahim","doi":"10.1007/s11600-024-01437-w","DOIUrl":"10.1007/s11600-024-01437-w","url":null,"abstract":"<div><p>A better knowledge of the Arabian Shield Crust at the Red Sea Margin (AS-RSM) is essential to build more realistic models for the rifting process. Here, we present, for the first time, a comprehensive study on rheological parameters of crust derived from the receiver function analysis results from 24 seismic stations across the AS-RSM. The elastic parameters computed for the upper and lower crust are: <i>V</i>p, <i>V</i>p/<i>V</i>s, density (<i>ρ</i>), shear modulus (<i>μ</i>), Lame’s first constant (<i>λ</i>), Poisson’s ratio (<i>σ</i>), Young’s modulus (<i>E</i>), bulk modulus (<i>K</i>) and acoustic impedance (AI). Their cross-plots and mutual regression relations are investigated to deduce the dominant rock composition in the underlying crust prevalent in their respective regions: North, Central and South Red Sea Margin (NRSM, CRSM and SRSM). Primary results are: (i) the AS-RSM is highly heterogeneous in rheology, and their variances extend both laterally and vertically inside the crust, (ii) significant changes are expected in lithological distribution, rock composition and metamorphic status at crustal depths, (iii) the lower crust underlying the NRSM and the SRSM mostly consists of quartz diorite to diorite, while those for the CRSM (including the Jeddah Terrain, JT) are composed of amphibolite and gabbro metamorphosed to upper amphibolite facies, (iv) crustal rheological properties underneath NRSM and SRSM are quite akin and have lower values, but those under CRSM and JT are significantly higher, and (v) the elastic moduli values and their analysis can find prognostic applications in stress changes around the fault zones that dissect the AS-RSM at high angles. These faults owe their inheritance from the Red Sea spreading.</p></div>","PeriodicalId":6988,"journal":{"name":"Acta Geophysica","volume":"73 2","pages":"1071 - 1085"},"PeriodicalIF":2.3,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SMRF: a new class-based probabilistic approach for season-ahead monthly rainfall forecasting","authors":"Fereshteh Modaresi,&nbsp;Ali Danandeh Mehr,&nbsp;Atefe Kazemi Choolanak","doi":"10.1007/s11600-024-01433-0","DOIUrl":"10.1007/s11600-024-01433-0","url":null,"abstract":"<div><p>Monthly rainfall forecasting is an important task in hydrology. Because of the stochastic nature of rainfall events, probabilistic analysis is considered an appropriate approach for rainfall forecasting. This article introduces a new probabilistic hybrid model, called SMRF, for season-ahead monthly rainfall forecasts. The SMRF model is based on a combination of classification and probabilistic kernel function and conducted by a four-step algorithm. It benefits from probabilistic kernel functions calculated for each of humid classes of seasonal rainfall in each of months of the season. This model is favoured for monthly rainfall forecasting due to its ability to simultaneously estimate rainfall for all months within a season, without relying on the rainfall patterns of preceding months. The new model was demonstrated using different periods of rainfall data from two different climate divisions, Karkheh (1982–2014) and Kardeh (1993–2020) basins, in southwest and northeast of Iran. The efficiency of the proposed model was verified by comparing two probabilistic artificial intelligence models, namely Generalized Regression Neural Network (GRNN) and K-Nearest Neighbour model (KNN), based on the K-fold cross-validation method. The results showed that the SMRF was superior to the GRNN and KNN in both study areas, while in most cases, the accuracy of the SMRF was higher than those of the benchmarks, particularly for heavy rainfall forecasting. Considering the seasonal average of Nash–Sutcliffe efficiency criteria, the SMRF showed up to 170% (4%) and 100% (80%) more accurate forecasts than the GRNN and KNN in Karkheh (Kardeh) basin, respectively.</p></div>","PeriodicalId":6988,"journal":{"name":"Acta Geophysica","volume":"73 2","pages":"1741 - 1755"},"PeriodicalIF":2.3,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Three-dimensional observation system of direct current method based on overlapping electrodes and its application","authors":"XingHai Chen,&nbsp;XiaoDong Yang,&nbsp;XiaoPing Wu,&nbsp;Yu Cao,&nbsp;MingXin Yue,&nbsp;Guanqun Zhou","doi":"10.1007/s11600-024-01435-y","DOIUrl":"10.1007/s11600-024-01435-y","url":null,"abstract":"<div><p>The three-dimensional (3D) direct current (DC) method for geophysical prospecting has benefits such as precise spatial positioning and sensitivity to low-resistivity bodies. However, its efficiency in large-area exploration is limited by the need for numerous survey lines. Traditional electrical instruments with high density increase measurement times and decrease efficiency. We present a novel strategy to address this by utilizing parallel electric method acquisition technology. The deployment of multiple observation systems with overlapping electrodes allows for the extraction of potential data differences between measuring electrodes along various survey lines, resulting in a combined dataset that resembles a true 3D observation system. This novel setup reduces the requirement for excessive acquisition equipment while enhancing working efficiency, particularly in challenging environments such as mines. Numerical simulations demonstrate the system’s practicality in balancing the accuracy of anomaly localization achieved by true 3D and pseudo-3D observation systems. Its application at the Weah Power Plant in Guizhou Province showcases its effectiveness. It successfully explored a mined-out area of a small coal mine, yielding fruitful results.</p></div>","PeriodicalId":6988,"journal":{"name":"Acta Geophysica","volume":"73 2","pages":"1377 - 1392"},"PeriodicalIF":2.3,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lightning activity and its connection with weather-related parameters over Sri Lanka","authors":"Nandivada Umakanth, Annur Vivekananda Chandrasekhar, Akkarapakam Sujala Swapna Smitha, Bhavani Vasantha, Karuturi Srinivasa Rao, Ravindranadh Koutavarapu, Myla Chimpiri Rao","doi":"10.1007/s11600-024-01442-z","DOIUrl":"https://doi.org/10.1007/s11600-024-01442-z","url":null,"abstract":"<p>This study analyzed lightning activity along Sri Lanka using lightning imaging sensor for a 17-year period (1998–2014). To understand the influence of various parameters on the lightning activity, we investigated various meteorological parameters such as convective precipitation, relative humidity, cloud top temperature, cloud base height, convective available potential energy, total precipitable water, rain dynamic index, humidity index, convection inhibition, lifted index, K-index, total totals index, show alter index, vertical velocity and dew point depression (Dpd). North-western, Western, Southern and Sabaragamuwa regions of Sri Lanka showed high lightning activity. The analysis revealed different seasonal variations in lightning activity. The pre-monsoon season showed the maximum frequency, while winter witnessed the least. In addition, wind patterns embedded with moisture seem to influence regional variations over Srilanka. The westerly winds might influence lightning activity over Srilanka. We investigated the variations of different meteorological parameters for 40 lightning and no lightning days during the study period. During lightning days, the VV values show negative values with strong lightning and convection potential and strong atmospheric updrafts. Higher atmospheric levels have been found to contain dry air, and lower atmospheric levels have been found to contain moist air on lightning days. Extremely unstable atmospheric conditions that favour intense lightning activity were indicated by LI values less than −4.</p>","PeriodicalId":6988,"journal":{"name":"Acta Geophysica","volume":"75 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142254933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrated geophysical model approach for Nazca Plate subduction in Ecuador","authors":"Carlos Araque-Pérez,&nbsp;Janckarlos Reyes-Lucero,&nbsp;Inírida Rodriguez-Millan","doi":"10.1007/s11600-024-01440-1","DOIUrl":"10.1007/s11600-024-01440-1","url":null,"abstract":"<div><p>This research addresses 2D models of the Nazca-South America subduction zone off the coast of Ecuador using the European Improved Gravity Model of the Earth by New Techniques (EIGEN-6C4), the Earth Magnetic Anomaly Grid with a 2-arc-minute resolution model (EMAG2 V3), and the seismic catalog from the Ecuadorian Geophysical Institute of the National Polytechnic School (IGEPN). Since the Upper Cretaceous, the region has experienced several geomorphological and structural alterations within the oceanic plate (Carnegie Ridge and Grijalva Fault Zone) and continental plate (North Andean Block and South American Plate). These changes result from a complex geodynamic history involving ancient subduction zones, accretions, and roll-back stages of allochthonous oceanic terrains and the autochthonous continental coast. To ensure the accuracy of the selected gravimetric model, the EIGEN-6C4 model was statistically compared with the pure-satellite gravimetric model, GO-CONS-TIM-R6e. Several geophysical analyses, such as terrain correction, geostatistical analysis, clustering, and power spectrum, were performed to gain valuable insights into gravity and magnetic sources. Then, these results were incorporated as constraints into the forward modeling procedure, which was adjusted to hypocenters, generating four subduction profiles that were then refined by an inversion method. The 0°S profile shows a subduction angle of 15° and escalates to 35° beyond 55 km depth, with the oceanic crust thickening at the Carnegie Ridge up to 18 km. The 1°S profile displayed two inflection points implying changes in the dip angle: a transition from 14° to 7° dip angle, supporting a change to low-angle subduction, and a transition from 7° to 40°, suggesting normal subduction beneath the Andean Cordillera. In the 2°S profile, the subduction initiates with a 15° angle beneath the continental plate extending to 60 km beneath the Manabi Basin, then potentially increases to 30° beyond 120 km depth. The 3°S profile beneath the Andes revealed a stable subduction zone with a constant dip angle of 14° and flat-slab subduction. Creating a three-dimensional interpolated model between the modeled profiles as a sketch of the angle variation of the subducted slab in the Equatorian region. The small root-mean-square error indicates that the models adequately represent the data. These models provide valuable observations of the geometric variations of the subducting plate, highlighting the impact of heterogeneous physiographic elements within the oceanic crust and the presence of an ancient subduction slab derived from the Farallon Plate.</p></div>","PeriodicalId":6988,"journal":{"name":"Acta Geophysica","volume":"73 2","pages":"1041 - 1069"},"PeriodicalIF":2.3,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142254932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A study on geoelectrical recognition model of seawater/freshwater interface based on convolutional neural network: an application in sand tank experiments","authors":"Jun Ma,&nbsp;Lusi Wei,&nbsp;Jia Xiong,&nbsp;Zhifang Zhou,&nbsp;Shumei Zhu","doi":"10.1007/s11600-024-01441-0","DOIUrl":"10.1007/s11600-024-01441-0","url":null,"abstract":"<div><p>Seawater intrusion is a global environmental issue, and seawater intrusion monitoring requires a multidisciplinary approach to improve accuracy. Simplified seawater/freshwater interface models for coastal aquifers are generally divided into two types: abrupt interface models and wedge-shaped interface models. Electrical resistivity tomography (ERT) is the visualization of subsurface resistivity distributions in 2D or 3D and has been widely used in seawater intrusion monitoring. This paper presents a geoelectrical recognition model for classifying simplified seawater/freshwater interface types based on a convolutional neural network (CNN). The CNN structure is composed of three convolutional layers, three max pooling layers, two fully connected layers, and one Softmax layer. A total of 686 samples were combined for model training, and obtained 0.9581 for the average accuracy (ACU) and 1.3500 for the average cross-entropy loss (CEL). Sand tank experiments were carried out to simulate the process of seawater intrusion caused by a rise in the water level of sea water rise or a decrease in the water level of fresh water, the ERT method was used to monitor the resistivity of the aquifer during the experiments, and the fully trained CNN model was used to classify the interface types. According to the output data, the probability of observing the wedge-shaped interfaces during the experiments at 300 and 345 min were 98.85% and 99.89%, while the probability of observing the abrupt interfaces were 1.15% and 0.11%. The results showed that the ERT method offers a fast and nondestructive approach for monitoring seawater intrusion, and accurate recognition results of interface types were obtained using a well-trained recognition model in the laboratory experiments.</p></div>","PeriodicalId":6988,"journal":{"name":"Acta Geophysica","volume":"73 2","pages":"1719 - 1739"},"PeriodicalIF":2.3,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142254931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}