Recent Publications 2022-2026

Ast. Professor, School of Mineral Resources Engineering, Technical University of Crete

Scopus Scholar

2026

Koltsidopoulou, M.D., Pavlides, A., Hristopulos, D.T., E. A. Varouchakis+, Enhancing Geostatistical Analysis of Natural Resources Data with Complex Spatial Formations Using Non-Euclidean Distances. Math Geosci (2026). https://doi.org/10.1007/s11004-025-10269-3

E. Α. Varouchakis+, Evangelos Machairas, Ioulia Koroptsenko, Stylianos Tampouris,  Christos Stenos and Michail Galetakis, Quantitative Assessment of Pit Lake Rehabilitation Using Virtual Reality Imagery and Machine Learning Validation, Geosciences (2026), 16(4), 149; https://www.mdpi.com/2076-3263/16/4/149

Nahed Ben-Salem, Amir Rouhani, Nadim K. Copty, Emmanouil A. Varouchakis, J. Jaime Gómez-Hernández, George P. Karatzas, Michael Rode, Seifeddine Jomaa, The role of secondary data in estimating groundwater levels in the Iberian Peninsula, Groundwater for Sustainable Development, Volume 33, 2026, 101594, https://doi.org/10.1016/j.gsd.2026.101594.

Vozinaki, AE.K., Anyfanti, I.V., Karatzas, G.P., E. Α. Varouchakis et al. Sustainable Water Governance: Insights from Living Lab Experiences. Water Resour Manage 40, 10 (2026). https://doi.org/10.1007/s11269-025-04383-4

Baeza, D, Maleki, M. & Varouchakis, E. A. (2026). Leveraging pre-existing geological model to generate multiple realizations of geological domain through machine learning algorithms. Natural Resources Research, 35, 333–353, (2026) https://doi.org/10.1007/s11053-025-10572-0

G. Xiroudakis, G. Saratsis, G.E. Exadaktylos, E. Machairas, E.A. Varouchakis, S. Mavrigiannakis, The effect of microstructure on the behavior of an underground excavation, Simulation Modelling Practice and Theory, Volume 147, 2026, 103241. https://doi.org/10.1016/j.simpat.2025.103241

2025

A. Pavlides, M. D. Koltsidopoulou, M. Chrysanthi, E. A. Varouchakis+, (2025). A Kernel-Based Nonparametric Approach for Data Gaussian Anamorphosis, Mathematical Geosciences, https://doi.org/10.1007/s11004-025-10251-z

Maleki, M., Mery, N., Soltani-Mohammadi, S., Plaza-Carvajal, J., & Varouchakis, E. A. (2025). Integrating geological domains into machine learning for ore grade prediction: A case study from a porphyry copper deposit. Minerals, 15(11), 1175; https://doi.org/10.3390/min15111175

M. K. Germanou, A. Pavlides, E A. Varouchakis+. “Comparison of Geostatistical and Machine Learning Methods for Spatial Analysis of Natural Resources Data,” Mathematical Geosciences, https://doi.org/10.1007/s11004-025-10239-9

M. Chrysanthi, A. Pavlides, E. A. Varouchakis+. “A Bayesian Geostatistical Approach to Analyzing Groundwater Depth in Mining Areas,” Geosciences, 2025, 15(11), 410; https://doi.org/10.3390/geosciences15110410

E.A. Varouchakis+, Konstantinos Komnitsas, Michail Galetakis. "Spatiotemporal Analysis of Vegetation Health and Moisture Dynamics in Rehabilitated Mining Quarries Using Satellite Imagery," Environmental Processes, 12, article number 45, (2025), https://doi.org/10.1007/s40710-025-00781-3

E.A. Varouchakis+, Ashok Krishnamurthy, Konstantinos Komnitsas. "Modeling Extreme Rainfall Using the Principle of Maximum Entropy," Mining, Metallurgy & Exploration, 42, pages 2685–2697, (2025), https://doi.org/10.1007/s42461-025-01274-5

E.A. Varouchakis+, M. D. Koltsidopoulou and A. Pavlides, 2025, Designing Robust Covariance Models for Geostatistical Applications, Stochastic Environmental Research and Risk Assessment, 39, 2517–2527, (2025), https://doi.org/10.1007/s00477-025-02982-6

Lyronis A., E. A. Varouchakis+, I. Anyfanti, G. P. Karatzas, 2025.  A Unified Open-Source Metabase Design for Hydro-meteorological Data Descriptive Analysis, Environmental Processes, 12, article number 18, (2025), https://doi.org/10.1007/s40710-025-00758-2

Hristopulos, D. T., Symeonidis, P., Tsakiridou, S., & Varouchakis, E. A., 2025. Causality Inference: A Comparison of Two Methods with Application to North Atlantic Oscillation and Rainfall in Greece. Mathematical Geosciences, 1-29. https://doi.org/10.1007/s11004-025-10181-w

Biniaris, D., Xiroudakis, G., Saratsis, G., Exadaktylos, G., & Varouchakis, E. A., 2025. Minimization of CO2 Emissions in Openpit Mines by Using Stochastic Simulations. Circular Economy and Sustainability, 5, pages 2317–2345, (2025), https://doi.org/10.1007/s43615-024-00491-2

Machairas, E., Varouchakis, E.A.+, Sfakianakis, M., Rozakis, S., Deveci, M. and Galetakis, M., 2025. Cost–Benefit Analysis through Stochastic Risk Assessment on Mining Waste Management considering the Circular Economy’s Requirements. Journal of Cleaner Production, 489, 144388, 2025, https://doi.org/10.1016/j.jclepro.2024.144388

2024

Leilabadi, S. H., Lottermoser, B. G., Roach, M., Varouchakis, E. A., Machairas, E., Barrionuevo, F. G., Macia, M. T., & Nieto, J. M. , 2024. The IMMERSE Project: Virtual Excursions on Critical Raw Materials for the Clean Energy Transition. Mining Report, 160(6), 601-607. ISSN: 2195-6529,https://mining-report.de/online-kiosk/mining-report-glueckauf-ausgabe-6-dezember-2024/

Gkika, A.V., Lymperi, O.A.I., Varouchakis, E.A., Pavlides, A., Zacharis, E.A. and Lekkas, E.L., 2024. A risk assessment methodology for supporting decision making on the climate proofing of electricity distribution networks. Energy Reports, 12, pp.6155-6185, https://doi.org/10.1016/j.egyr.2024.11.070

Diamantopoulou, E., Pavlides, A., Steiakakis, E. and Varouchakis, E.A. +, 2024. Geostatistical Analysis of Groundwater Data in a Mining Area in Greece. Hydrology, 11(7), p.102, https://doi.org/10.3390/hydrology11070102

Chen, Y., Wang, W., Qiao, Y., Zheng, Q., Deveci, M., Varouchakis, E.A. and Al-Hinai, A., 2024. Assessing adoption barriers to digital technology in the natural gas supply chain using an spherical fuzzy RAFSI model. Resources Policy, 94, p.105103,https://doi.org/10.1016/j.resourpol.2024.105103

Lee, D., M. Ruf, N. Karadimitriou, H. Steeb, M. Manousidaki, E. A. Varouchakis, S. Tzortzakis, and A. Yiotis. 2024. Development of stochastically reconstructed 3D porous media micromodels using additive manufacturing: numerical and experimental validation, Scientific Reports, 14(1), 9375, doi:10.1038/s41598-024-60075-w

D Pentari, E Varouchakis, I Cheiladaki, D Keravnopoulou, E Partsalaki. 2024. Carboxylic Acid-Assisted Leaching of Critical Elements from Coal Fly Ash: Experimental and Simulation Studies, Global NEST Journal 26 (7), 1-9, https://doi.org/10.30955/gnj.06013

Lymperi, O.-A., and E. A. Varouchakis+. 2024. Modeling Extreme Precipitation Data in a Mining Area, Mathematical Geosciences, doi:10.1007/s11004-023-10126-1.

Lino Pereira, J., E. A. Varouchakis, G. P. Karatzas, and L. Azevedo. 2024. Uncertainty Quantification in Geostatistical Modelling of Saltwater Intrusion at a Coastal Aquifer System, Mathematical Geosciences, doi:10.1007/s11004-023-10120-7.

2023

Ben-Salem, N., R. Reinecke, N. K. Copty, J. Jaime Gómez-Hernández, E. A. Varouchakis, G. P. Karatzas, M. Rode, and S. Jomaa. 2023. Mapping steady-state groundwater levels in the Mediterranean region: The Iberian Peninsula as a benchmark, J. Hydrol., 626, 130207, https://doi.org/10.1016/j.jhydrol.2023.130207

Machairas, E., and E. A. Varouchakis+. 2023. Cost–Benefit Analysis and Risk Assessment for Mining Activities in Terms of Circular Economy and Their Environmental Impact, Geosciences, 13(10), doi:10.3390/geosciences13100318.

Pereira, J. L., J. J. Gómez-Hernández, A. Zanini, E. A. Varouchakis, and L. Azevedo. 2023. Iterative geostatistical electrical resistivity tomography inversion, Hydrogeol. J., 31(6), 1627-1645, doi:10.1007/s10040-023-02683-w.

Pavlides, A., E. A. Varouchakis+, and D. T. Hristopulos. 2023. Geostatistical analysis of groundwater levels in a mining area with three active mines, Hydrogeol. J., 31(6), 1425-1441, doi:10.1007/s10040-023-02676-9.

Al Heib, M., E. A. Varouchakis, M. Galetakis, V. Renaud, and J. Burda. 2023. A framework for assessing hazards related to pit lakes: application on European case studies, Environ. Earth. Sci., 82(14), 365, doi:10.1007/s12665-023-11045-4.

Petrakis, E., E. Varouchakis, and K. Komnitsas. 2023, Reliability of the Non-linear Modeling in Predicting the Size Distribution of the Grinding Products Under Different Operating Conditions, Mining, Metallurgy & Exploration, 40(4), 1265-1278. https://doi.org/10.1007/s42461-023-00793-3

Deveci, M., E. A. Varouchakis, P. R. Brito-Parada, A. R. Mishra, P. Rani, M. Bolgkoranou, and M. Galetakis, 2023. Evaluation of risks impeding sustainable mining using Fermatean fuzzy score function based SWARA method, Applied Soft Computing, 139, 110220https://doi.org/10.1016/j.asoc.2023.110220

E.A. Varouchakis+Solomatine, D., Perez, G.A.C., Jomaa, S., Karatzas, G.P., 2023. Combination of geostatistics and self-organizing maps for the spatial analysis of groundwater level variations in complex hydrogeological systems. Stoch. Env. Res. Risk A. 37(8), 3009-3020. DOI:10.1007/s00477-023-02436-x

Kozyrakis, G.V., Spanoudaki, K., Varouchakis, E.A., 2023. Long-term wave energy potential estimation in the Aegean and Ionian seas using dynamic downscaling and wave modelling techniques. Applied Ocean Research 131, 103446. DOI: https://doi.org/10.1016/j.apor.2022.103446

Varouchakis, E.A.+, Kalaitzaki, E., Trichakis, I., Corzo, G., Karatzas, G., 2023. An integrated method to study and plan aquifer recharge. Hydrology Research. 54 (1): 1–13 https://doi.org/10.2166/nh.2022.054

2022

Deveci, M., Brito-Parada, P.R., Pamucar, D., Varouchakis, E.A.+, 2022. Rough sets based Ordinal Priority Approach to evaluate sustainable development goals (SDGs) for sustainable mining. Resources Policy 79, 103049. DOI:https://doi.org/10.1016/j.resourpol.2022.103049

Varouchakis, E.A.+, Guardiola-Albert, C., Karatzas, G.P., 2022. Spatiotemporal Geostatistical Analysis of Groundwater Level in Aquifer Systems of Complex Hydrogeology. Water Resour. Res. 58(3), e2021WR029988. DOI:https://doi.org/10.1029/2021WR029988

Spanoudaki, K., Dimitriadis, P., Varouchakis, E.A., Perez, G.A.C., 2022. Estimation of Hydropower Potential Using Bayesian and Stochastic Approaches for Streamflow Simulation and Accounting for the Intermediate Storage Retention. Energies 15(4), 1413.

Tzanakakis, V. A., A. Pavlaki, E. Lekkas, E. A. Varouchakis, N. V. Paranychianakis, G. Fasarakis, and A. N. Angelakis, 2022. Uncoupled Precipitation and Water Availability: The Case Study of Municipality of Sfakia, Crete, Greece. Water 14(3), 462. 

Varouchakis, E.A.+, Perez, G.A.C., Loaiza, M.A.D., Spanoudaki, K., 2022. Sustainability of mining activities in the European Mediterranean region in terms of a spatial groundwater stress index. Spatial Statistics 50, 100625. DOI:https://doi.org/10.1016/j.spasta.2022.100625

 

Publications Before 2022: Scopus Scholar

 

Books

Spatiotemporal Analysis of Extreme Hydrological Events

 

Hristopulos, D.T., Varouchakis, E.A. (2021). Maximum Entropy Method. In: Daya Sagar, B., Cheng, Q., McKinley, J., Agterberg, F. (eds) Encyclopedia of Mathematical Geosciences. Encyclopedia of Earth Sciences Series. Springer, Cham. https://doi.org/10.1007/978-3-030-26050-7_196-1