Items where NERC Author is "Christelis, Vasileios"

Christelis, V.; Mansour, M.M.; Jackson, C.R.. 2024 Characterisation of Groundwater Drought Using Distributed Modelling, Standardised Indices, and Principal Component Analysis. Water Resources Management. https://doi.org/10.1007/s11269-024-03997-4

Collins, Sarah ORCID: https://orcid.org/0000-0001-8893-9634; Martinez-de la Torre, Alberto ORCID: https://orcid.org/0000-0003-0244-5348; Scheidegger, Johanna ORCID: https://orcid.org/0000-0001-6636-1499; Clark, Douglas ORCID: https://orcid.org/0000-0003-1348-7922; Folwell, Sonja; Christelis, Vasileios; MacDonald, Alan ORCID: https://orcid.org/0000-0001-6636-1499; Hughes, Andrew. 2024 Continental scale modelling to advance the inclusion of groundwater processes. [Speech] In: World Groundwater Congress IAH 2024 Davos, Davos, Switzerland, 8-13 September 2024. (Unpublished)

Haslam, Richard ORCID: https://orcid.org/0000-0001-5456-1450; Raine, Robert; Boon, David; Staffell, Iain; Gonzalez Quiros, Andres; Christelis, Vasileios; Hough, Edward; Jackson, Matthew. 2023 ATES national tool. [Other] In: Energy Group: The 10th UK Geothermal Symposium, Geological Society London, 20-22 Nov 2023. (Unpublished)

Christelis, Vasileios; Kopsiaftis, George; Regis, Rommel G.; Mantoglou, Aristotelis. 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, 180, 104537. https://doi.org/10.1016/j.advwatres.2023.104537

Ascott, M.J.; Christelis, V.; Lapworth, D.J. ORCID: https://orcid.org/0000-0001-7838-7960; Macdonald, D.M.J.; Tindimugaya, C.; Iragena, A.; Finney, D.; Fitzpatrick, R.; Marsham, J.H.; Rowell, D.P.. 2023 On the application of rainfall projections from a convection-permitting climate model to lumped catchment models. Journal of Hydrology, 617 (C), 129097. https://doi.org/10.1016/j.jhydrol.2023.129097

Christelis, Vasileios; Hughes, Andrew G. ORCID: https://orcid.org/0000-0001-9940-1813. 2022 Multifidelity Surrogate Models for Efficient Uncertainty Propagation Analysis in Salars Systems. Frontiers in Water, 4, 827036. https://doi.org/10.3389/frwa.2022.827036

Mansour, Majdi ORCID: https://orcid.org/0000-0003-3058-8864; Christelis, Vasileios ORCID: https://orcid.org/0000-0003-4345-2528. 2021 Pilot description and assessment : Chalk aquifer (United Kingdom). GeoERA, 56pp. (TACTIC Groundwater Deliverable 4.2) (Unpublished)

Mansour, Majdi ORCID: https://orcid.org/0000-0003-3058-8864; Christelis, Vasileios ORCID: https://orcid.org/0000-0003-4345-2528. 2021 Pilot description and assessment : Devonian / Carboniferous Limestone aquifer aquifer (United Kingdom). GeoERA, 52pp. (TACTIC Groundwater Deliverable 4.2) (Unpublished)

Mansour, Majdi ORCID: https://orcid.org/0000-0003-3058-8864; Christelis, Vasileios ORCID: https://orcid.org/0000-0003-4345-2528. 2021 Pilot description and assessment : Jurassic aquifer (United Kingdom). GeoERA, 54pp. (TACTIC Groundwater Deliverable 4.2) (Unpublished)

Mansour, Majdi ORCID: https://orcid.org/0000-0003-3058-8864; Christelis, Vasileios ORCID: https://orcid.org/0000-0003-4345-2528. 2021 Pilot description and assessment : Magnesian aquifer (United Kingdom). GeoERA, 48pp. (TACTIC Groundwater Deliverable 4.2) (Unpublished)

Mansour, Majdi ORCID: https://orcid.org/0000-0003-3058-8864; Christelis, Vasileios ORCID: https://orcid.org/0000-0003-4345-2528. 2021 Pilot description and assessment : Permo-Triassic aquifer (United Kingdom). GeoERA, 53pp. (TACTIC Groundwater Deliverable 4.2) (Unpublished)

Collins, Sarah L.; Christelis, Vasileios; Jackson, Christopher R.; Mansour, Majdi M.; Macdonald, David M.J.; Barkwith, Andrew K.A.P.. 2020 Towards integrated flood inundation modelling in groundwater-dominated catchments. Journal of Hydrology, 591, 125755. https://doi.org/10.1016/j.jhydrol.2020.125755

Collins, Sarah; Christelis, Vasileios; Jackson, Chris; Mansour, Majdi; Macdonald, David. 2020 Groundwater flooding in the River Pang Catchment. [Poster] In: LANDWISE 2nd Annual Conference, 20 Feb. (Unpublished)

Kopsiaftis, G.; Christelis, V.; Mantoglou, A.. 2019 Comparison of Sharp Interface to Variable Density Models in Pumping Optimisation of Coastal Aquifers. Water Resources Management, 33 (4). 1397-1409. https://doi.org/10.1007/s11269-019-2194-7

Scheidegger, Johanna; Farr, Gareth; Christelis, Vasileios; Mansour, Majdi; Jackson, Chris; Patton, Ashley; James, Laura; Boon, David; Kendall, Rhian; Holden, Alan; Grabham, Paul. 2019 Groundwater modelling with Modflow 6 to support heat recovery from a shallow urban aquifer. [Poster] In: Groundwater Modelling Forum 2019, Birmingham, UK, 19 Sep 2019. (Unpublished)

Scheidegger, Johanna; Farr, Gareth; Christelis, Vasileios; Mansour, Majdi; Jackson, Chris; Patton, Ashley; James, Laura; Boon, David; Holden, Alan. 2019 Groundwater modelling with Modflow 6 to support sustainable heat recovery from a shallow urban coastal aquifer. [Other] In: Groundwater Modellers Forum 2019, Birmingham, UK, 19 Sep 2019. (Unpublished)

Christelis, Vasileios; Kopsiaftis, George; Mantoglou, Aristotelis. 2019 Performance comparison of multiple and single surrogate models for pumping optimization of coastal aquifers. Hydrological Sciences Journal, 64 (3). 336-349. https://doi.org/10.1080/02626667.2019.1584400

Christelis, Vasileios; Mantoglou, Aristotelis. 2019 Pumping Optimization of Coastal Aquifers Using Seawater Intrusion Models of Variable-Fidelity and Evolutionary Algorithms. Water Resources Management, 33 (2). 555-568. https://doi.org/10.1007/s11269-018-2116-0

Christelis, Vasileios; Regis, Rommel G.; Mantoglou, Aristotelis. 2018 Surrogate-based pumping optimization of coastal aquifers under limited computational budgets. Journal of Hydroinformatics, 20 (1). 164-176. https://doi.org/10.2166/hydro.2017.063

Christelis, Vasileios; Hughes, Andrew G.. 2018 Metamodel-assisted analysis of an integrated model composition: an example using linked surface water-groundwater models. Environmental Modelling & Software, 107. 298-306. https://doi.org/10.1016/j.envsoft.2018.05.004

Jackson, C.R.; Christelis, V.; Mansour, M.; Wang, L.; Bloomfield, J.P. ORCID: https://orcid.org/0000-0002-5730-1723. 2016 Groundwater drought forecasting using lumped conceptual models. [Poster] In: 1st Annual Meeting of the Drought & Water Scarcity Programme, Oxford, UK, 27-29 June 2016. British Geological Survey. (Unpublished)