@article{MTMT:34760235,
	title = {Assessing heterogeneous groundwater systems: Geostatistical interpretation of well logging data for estimating essential hydrogeological parameters},
	url = {https://m2.mtmt.hu/api/publication/34760235},
	author = {Mohammed, Musaab Adam Abbakar and Flores Carpio, Yetzabbel Gerarda and Szabó, Norbert Péter and Szűcs, Péter},
	doi = {10.1038/s41598-024-57435-x},
	journal-iso = {SCI REP},
	journal = {SCIENTIFIC REPORTS},
	volume = {14},
	unique-id = {34760235},
	issn = {2045-2322},
	abstract = {This research presents an unsupervised learning approach for interpreting well-log data to characterize the hydrostratigraphical units within the Quaternary aquifer system in  Debrecen area, Eastern Hungary. The study applied factor analysis (FA) to extract factor logs from spontaneous potential (SP), natural gamma ray (NGR), and resistivity (RS) logs and correlate it to the petrophysical and hydrogeological parameters of shale volume and hydraulic conductivity. This research indicated a significant exponential relationship between the shale volume and the scaled first factor derived through factor analysis. As a result, a universal FA-based equation for shale volume estimation is derived that shows a close agreement with the deterministic shale volume estimation. Furthermore, the first scaled factor is correlated to the decimal logarithm of hydraulic conductivity estimated with the Csókás method. Csókás method is modified from the Kozeny-Carman equation that continuously estimates the hydraulic conductivity. FA and Csókás method-based estimations showed high similarity with a correlation coefficient of 0.84. The use of factor analysis provided a new strategy for geophysical well-logs interpretation that bridges the gap between traditional and data-driven machine learning techniques. This approach is beneficial in characterizing heterogeneous aquifer systems for successful groundwater resource development.},
	year = {2024},
	eissn = {2045-2322},
	orcid-numbers = {Flores Carpio, Yetzabbel Gerarda/0000-0003-0365-8951}
}

@article{MTMT:34500289,
	title = {Multi-well clustering and inverse modeling-based approaches for exploring geometry, petrophysical, and hydrogeological parameters of the Quaternary aquifer system around Debrecen area, Hungary.},
	url = {https://m2.mtmt.hu/api/publication/34500289},
	author = {Mohammed, Musaab Adam Abbakar and Szabó, Norbert Péter and Flores Carpio, Yetzabbel Gerarda and Szűcs, Péter},
	doi = {10.1016/j.gsd.2024.101086},
	journal-iso = {Groundwater for Sustainable Development},
	journal = {GROUNDWATER FOR SUSTAINABLE DEVELOPMENT},
	volume = {24},
	unique-id = {34500289},
	issn = {2352-801X},
	year = {2024},
	orcid-numbers = {Flores Carpio, Yetzabbel Gerarda/0000-0003-0365-8951}
}

@article{MTMT:34109504,
	title = {Integration of Geological, Geochemical Modelling and Hydrodynamic Condition for Understanding the Geometry and Flow Pattern of the Aquifer System, Southern Nyírség–Hajdúság, Hungary},
	url = {https://m2.mtmt.hu/api/publication/34109504},
	author = {Flores Carpio, Yetzabbel Gerarda and Hemida, Mohamed Hamdy Eid and Szűcs, Péter and Szőcs, Teodóra and Fancsik, Tamás and Szanyi, János and Kovács, Balázs and Markos, Gábor and Péter, Újlaki and Péter, Tóth and McIntosh, Richard William and Püspöki, Zoltán},
	doi = {10.3390/w15162888},
	journal-iso = {WATER-SUI},
	journal = {WATER},
	volume = {15},
	unique-id = {34109504},
	abstract = {Geological heterogeneity impacts groundwater flow patterns, necessitating a detailed hydrogeological framework for conceptualization process of aquifer systems. This research developed a new conceptual model of detailed geologic geometry by integrating 133 well-logs, 366 hydrodynamic data and 118 water samples. As new results, systematic 3D log correlation detected four distinct hydrostratigraphic units in the Southern Nyírség–Hajdúság Groundwater Body (East Hungary). The primary aquifer was identified as an incised valley 10–13 km wide and a NE–SW strike. Logan’s approach estimated the average hydraulic conductivity of the Incised Valley Unit (IVU) at 11 m/d, higher than the other three aquifers (3.2 m/d to 4.6 m/d). The average specific capacity of wells screening the IVU is 315.6 m3/d/m, in contrast with the remaining aquifers ranging from 31.6 m3/d/m to 92 m3/d/m. Pressure–depth profiles, dynamic pressure increment and hydraulic head maps revealed recharge–discharge zones and hydraulic windows between hydrostratigraphic units. The elongated pattern on the hydraulic head map at the depth of the IVU showed the existence of a preferential path along its axis within the mapped borders of the IVU. Hydrochemical analysis revealed Ca-Mg-HCO3 water type within the primary aquifer and Na-HCO3 water type in the laterally connected aquifer. The saturation index values indicated a transition from undersaturated to supersaturated state inside the main aquifer for calcite and dolomite minerals. The correlation matrix and PCA results demonstrated that the carbonate weathering process is the main factor controlling the groundwater chemistry. This integrated approach holds significance for future applications of the regional conceptual model in water management planning, sustainable aquifer development and contaminant transport modelling. It provides essential contributions to informed decision-making and the formulation of effective strategies, ensuring the long-term availability and utilization of groundwater resources.},
	keywords = {Conceptual model; Groundwater modeling; incised valley aquifer; geologic geometry},
	year = {2023},
	eissn = {2073-4441},
	orcid-numbers = {Flores Carpio, Yetzabbel Gerarda/0000-0003-0365-8951; Szanyi, János/0000-0002-8053-6360}
}

@article{MTMT:33069909,
	title = {Comparative analysis of the K-nearest-neighbour method and K-means cluster analysis for lithological interpretation of well logs of the Shushufindi Oilfield, Ecuador},
	url = {https://m2.mtmt.hu/api/publication/33069909},
	author = {GÓMEZ, FRANKLIN and Flores Carpio, Yetzabbel Gerarda and Vadászi, Marianna},
	doi = {10.17794/rgn.2022.4.13},
	journal-iso = {RUDARSKO GEOLOSKO NAFTNI ZBORNIK - MIN GEOL PETROL ENG BULL},
	journal = {RUDARSKO GEOLOSKO NAFTNI ZBORNIK - MINING GELOLOGICAL PETROLEUM ENGINEERING BULLETIN},
	volume = {37},
	unique-id = {33069909},
	issn = {0353-4529},
	abstract = {The lithological interpretation of well logs is a fundamental task in Earth science that can be accomplished with the application of various machine learning algorithms. The current investigation attempts to evaluate the performance of the K-nearest-neighbour Density Estimate (KNN) and K-means cluster analysis methods for predicting lithology in a dataset of logs measured in the siliciclastic reservoir of the Shushufindi Oilfield of Ecuador. The comparison of lithological interpretation is assembled using classical methods, such as qualitative interpretation and density-neutron cross plot. The lithological interpretation results showed that the supervised method KNN has a higher fitting level with the comparison interpretation data (87.3%, 1145 m predicted of 1311.1 m interpreted) than the results of the K-means method (71.6%, 939.7 m predicted of 1311.1 m interpreted). The geological nature of the reservoir creates a level of discrepancy because of the near geophysical responses between limestone and intermedia grain size rocks. The possibility of controlling this in the KNN algorithm makes it preferable for usage in these types of reservoir lithological interpretation},
	year = {2022},
	eissn = {1849-0409},
	pages = {155-165},
	orcid-numbers = {Flores Carpio, Yetzabbel Gerarda/0000-0003-0365-8951}
}

@inproceedings{MTMT:33069863,
	title = {CARTOGRAPHIC DELINEATION OF KARST BODIES IN THE ECUADORIAN AMAZON REGION},
	url = {https://m2.mtmt.hu/api/publication/33069863},
	author = {Flores Carpio, Yetzabbel Gerarda and Szűcs, Péter},
	booktitle = {LECTURES of 16th International Scientific Conference on Mineral Waters of the Carpathian Basin},
	unique-id = {33069863},
	abstract = {Nowadays, the protection, sustainability, and management 
		 of water resources have become a global priority. And the karstic aquifers are among the groundwater systems with 
		 the greatest vulnerability to contamination issues. In fact, their characterization is a pillar of protection and management plans. The objective of this research is to delimit the karstic units in the Ecuadorian Amazon Region using geomorphological, lithological, e hydraulic indicators mapped on the national thematic cartographic sources to characterize the existence of karst bodies, and thus delimit the hydrogeological systems. The present work has defined five main karstic systems accompanied by small, isolated bodies at the scale of 1: 10 000},
	keywords = {Hydrogeology},
	year = {2022},
	pages = {7-13},
	orcid-numbers = {Flores Carpio, Yetzabbel Gerarda/0000-0003-0365-8951}
}

@inproceedings{MTMT:33037526,
	title = {HYDROGEOLOGIC MODELLING OF HAJDÚSZOBOSZLÓ AQUIFER SYSTEM TO DEMONSTRATE THE IMPORTANCE OF GEOLOGICAL HETEROGENEITY SPATIAL DISTRIBUTION OVER THE FLOW PATHS},
	url = {https://m2.mtmt.hu/api/publication/33037526},
	author = {Flores Carpio, Yetzabbel Gerarda and Szűcs, Péter and Püspöki, Zoltán},
	booktitle = {International Doctoral Seminar 2022},
	unique-id = {33037526},
	year = {2022},
	pages = {59-72},
	orcid-numbers = {Flores Carpio, Yetzabbel Gerarda/0000-0003-0365-8951}
}

@article{MTMT:32178478,
	title = {Differences and similarities between precipitation patterns of different climates},
	url = {https://m2.mtmt.hu/api/publication/32178478},
	author = {Ilyés, Csaba and Wendo, Valerie A. J. A. and Flores Carpio, Yetzabbel Gerarda and Szűcs, Péter},
	doi = {10.1007/s40328-021-00360-6},
	journal-iso = {ACTA GEOD GEOPHYS},
	journal = {ACTA GEODAETICA ET GEOPHYSICA},
	volume = {56},
	unique-id = {32178478},
	issn = {2213-5812},
	abstract = {In recent years water-related issues are increasing globally, some researchers even argue that the global hydrological cycle is accelerating, while the number of meteorological extremities is growing. With the help of large number of available measured data, these changes can be examined with advanced mathematical methods. In the outlined research we were able to collect long precipitation datasets from two different climatical regions, one sample area being Ecuador, the other one being Kenya. Using the methodology of spectral analysis based on the discrete Fourier-transformation, several deterministic components were calculated locally in the otherwise stochastic time series, while by the comparison of the results, also with previous calculations from Hungary, several global precipitation cycles were defined in the time interval between 1980 and 2019. The results of these calculations, the described local, regional, and global precipitation cycles can be a helpful tool for groundwater management, as precipitation is the major resource of groundwater recharge, as well as with the help of these deterministic cycles, precipitation forecasts can be delivered for the areas.},
	year = {2021},
	eissn = {2213-5820},
	pages = {781-800},
	orcid-numbers = {Ilyés, Csaba/0000-0002-5328-8023; Flores Carpio, Yetzabbel Gerarda/0000-0003-0365-8951}
}

@article{MTMT:33037564,
	title = {Estimation of the soil permeability coefficient in the city of Macas -Ecuador using variable load permeameter},
	url = {https://m2.mtmt.hu/api/publication/33037564},
	author = {Christian, Orlando Camacho-López and Nancy, Viviana Zabala-Alarcónn and Flores Carpio, Yetzabbel Gerarda},
	doi = {10.23857/dc.v6i3.1275},
	journal-iso = {Dominio de las Ciencias},
	journal = {Dominio de las Ciencias},
	volume = {6},
	unique-id = {33037564},
	issn = {2477-8818},
	year = {2020},
	pages = {78-94},
	orcid-numbers = {Flores Carpio, Yetzabbel Gerarda/0000-0003-0365-8951}
}

@article{MTMT:32119826,
	title = {Comparision of the general hydrogeological conditions of the karst water bodies of Hungary and Ecuador},
	url = {https://m2.mtmt.hu/api/publication/32119826},
	author = {Flores Carpio, Yetzabbel Gerarda and Christian, Camacho and Miklós, Rita and Szűcs, Péter and Lénárt, László},
	journal-iso = {GEOSCIENCES AND ENGINEERING},
	journal = {GEOSCIENCES AND ENGINEERING: A PUBLICATION OF THE UNIVERSITY OF MISKOLC},
	volume = {8},
	unique-id = {32119826},
	issn = {2063-6997},
	keywords = {Groundwater bodies; THERMAL-KARST; Karst system; cold karst; ecuadorian karst; karst hydrogeology},
	year = {2020},
	pages = {131-153},
	orcid-numbers = {Flores Carpio, Yetzabbel Gerarda/0000-0003-0365-8951}
}

@article{MTMT:31724630,
	title = {Using of Vertical Electric Sounding (Ves) in Groundwater Prospection},
	url = {https://m2.mtmt.hu/api/publication/31724630},
	author = {Flores Carpio, Yetzabbel Gerarda},
	journal-iso = {MŰSZAKI FÖLDTUDOMÁNYI KÖZLEMÉNYEK},
	journal = {MŰSZAKI FÖLDTUDOMÁNYI KÖZLEMÉNYEK},
	volume = {88},
	unique-id = {31724630},
	issn = {2063-5508},
	year = {2019},
	pages = {190-196},
	orcid-numbers = {Flores Carpio, Yetzabbel Gerarda/0000-0003-0365-8951}
}