Dr Vasileios Christelis is an environmental engineer with an expertise in groundwater modelling and water resources management. His current research interests include variable-density flow in coastal aquifers and salars, flow and heat transport modelling for geothermal applications, groundwater drought, surrogate modelling for optimization and sensitivity/uncertainty analysis. Within his BGS role, Vasileios has contributed to groundwater/hydrological modelling projects primarily in the UK environment, as well as in Africa, the Philippines, and South America.
Vasileios Christelis’s Biography
- 2016 – ongoing: Groundwater modeller, British Geological Survey
- 2021: PhD, National Technical University of Athens, Greece, School of Rural, Surveying and Geoinformatics Engineering
- 2006: MSc, University of Sheffield, UK, Environmental Management of Urban Land and Water
- 2005: BSc Environmental Engineering (5-year degree), Department of Environmental Engineering, Democritus University of Thrace, Greece
Research interests
- Coastal aquifer simulation and management
- Simulation–Optimization methods
- Surrogate Modelling
- Groundwater drought modelling
- Numerical modelling of groundwater flow and heat transfer
Current project or collaboration
- Project: ATESHAC – Aquifer thermal energy storage for decarbonisation of heating and cooling
- Project: CHAMFER – UK Coastal Hazards
- Project: GeoERA-TACTIC – Seawater intrusion modelling, UK
- Project: SmartRes – Smart assessment, management and optimisation of urban geothermal resources
- Collaboration: National Observatory of Athens – Efficient simulation of density-dependent flows in coastal aquifers and Lithium-rich brines.
ORCID: 0000-0003-4345-2528
Publications
- Christelis, V, Kopsiaftis, G, Regis, R, and Mantoglou, A. 2023. An adaptive multi-fidelity optimization framework based on co-Kriging surrogate models and stochastic sampling with application to coastal aquifer management. Advances in Water Resources, 104537.
- Ascott, M J, Christelis, V, Lapworth, D J, Macdonald, D M J, Tindimugaya, C, Iragena, A, Finney, D, Fitspatrick, R, Marcham, J H, and Rowell, D P. 2023. On the application of rainfall projections from a convection-permitting climate model to lumped catchment models. Journal of Hydrology, 617, 129097.
- Christelis, V, and Hughes, A. G. 2022. Multifidelity surrogate models for efficient uncertainty propagation analysis in salars systems. Frontiers in Water, 4, 827036.
- Collins, S L, Christelis, V, Jackson, C R, Mansour, M M, Macdonald, D M, and Barkwith, A K. 2020. Towards integrated flood inundation modelling in groundwater-dominated catchments. Journal of Hydrology, 591, 125755.
- Christelis, V, Kopsiaftis, G, and Mantoglou, A. 2019. Performance comparison of multiple and single surrogate models for pumping optimization of coastal aquifers. Hydrological Sciences Journal, 64(3).
- Christelis, V, and Mantoglou, A. 2018. Pumping Optimization of Coastal Aquifers Using Seawater Intrusion Models of Variable-Fidelity and Evolutionary Algorithms. Water Resources Management.
- Christelis, V, and Hughes, AG. 2018. Metamodel-assisted analysis of an integrated model composition: An example using linked surface water – groundwater models. Environmental Modelling & Software, 107, 298–306.
- Christelis, V, Regis RG, and Mantoglou, A. 2018. Surrogate-based pumping optimization of coastal aquifers under limited computational budgets. Journal of Hydroinformatics, 20(1), 164–176.
- MODFLOW, MT3DMS, MODPATH, SEAWAT, HydroGeoSphere, ZOOMQ3D, GR4J, AquiMod
- MATLAB, R, Python
- Member of Technical Chamber of Greece
- Member of European Water Resources Association (EWRA)
- Guest Editor in Frontiers in Water
- Guest Editor in Sustainability Journal