Civil Structural & Environmental Engineering

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Dr. Patrick Morrissey

Dr. Patrick Morrissey

Martin Naughton Assistant Professor, Civil Struct & Env. Eng.

3531896 5011

Biography

Patrick Morrissey is an Assistant Professor in Environmental Process Engineering in the School of Engineering, Trinity College Dublin. His research interest involves studying how various processes occur in the natural environment and then developing numerical models which represent these systems. He has a particular focus on studying the fate and transport water-borne pollutants in the natural and built environment, specifically the sources and fate of contaminants in rivers and groundwater. His research involves field studies which are then used to develop models of the environmental system to gain further insight and conduct scenario analysis. Prior to joining Trinity College in 2022, Patrick worked in the Environmental Protection Agency (EPA) as a numerical modeller developing models and tools aimed a Water Framework Directive assessment and measures development. He has also spent several years working in the environmental engineering industry specialising in the area of hydrological and hydrogeological assessment and has also completed a number of post-doctoral research projects.

Publications and Further Research Outputs

  • Gill L.W., Morrissey P., Johnston P.M., The impact of wastewater from rural unsewered cluster developments on groundwater quality, 42nd International Association of Hydrogeologists Congress, Rome, Italy, 13th-18th September, 2015, pp1 - 1Poster, 2015
  • Morrissey P., Johnston P.M., Gill L.W., The impact of on-site wastewater from high density cluster developments on groundwater quality, Journal of Contaminant Hydrology, 182, 2015, p36 - 50Journal Article, 2015, DOI
  • Morrissey, P, Weldon, P. and O'Mahony, M., Informing the Strategic Rollout of Fast Electric Vehicle Charging Networks with User Charging Behaviour Data Analysis , Procs of the 95th Annual Meeting of the Transportation Research Board, National Academy of Sciences, Washington D.C., January, 2016Conference Paper, 2016, TARA - Full Text
  • Morrissey, P., Weldon, P. and O'Mahony, M., Electric Vehicle Household Charging Behaviour in Ireland and Aims for a Carbon Neutral Electric Fleet by 2020, World Review of Intermodal Transportation Research, 5, (4), 2015, p336 - 352Journal Article, 2015, DOI , TARA - Full Text
  • Morrissey, P., Weldon, P. and O'Mahony, M., Future standard and fast charging infrastructure planning: An analysis of electric vehicle charging behaviour, Energy Policy, 89, 2016, p257 - 270Journal Article, 2016, DOI , URL
  • Weldon, P., Morrissey, P., Brady, J., and O'Mahony, M., An investigation into usage patterns of electric vehicles in Ireland, Transportation Research Part D: Transport and the Environment, 43, 2016, p207 - 225Journal Article, 2016, DOI , URL
  • Weldon, P. Morrissey, P., and O'Mahony, M., Environmental impacts of varying electric vehicle user behaviours and comparisons to internal combustion engine vehicle usage - An Irish case study, Journal of Power Sources, 319, 2016, p27-38Journal Article, 2016, DOI , URL
  • Morrissey, P., Weldon, P. and O'Mahony, M., The strategic rollout of fast electric vehicle charging networks with user charging behaviour data analysis, Transportation Research Record, 2572, 2016, p9 - 19Journal Article, 2016, DOI , TARA - Full Text
  • Morrissey P.J., Gill L.W., Integrating Hydrus and Modflow to predict on-site wastewater treatment contaminant transport in different aquifers, 44th International Association of Hydrogeologists (IAH) International Congress, Dubrovnik, Croatia, 25th-29th September, 2017Conference Paper, 2017
  • McCormack T., Naughton O., Bradford R., Morrissey P., Gill L., Hickey C., Monitoring and mapping groundwater flooding in Ireland, 44th International Association of Hydrogeologists (IAH) International Congress, Dubrovnik, Croatia, 25th-29th September, 2017Conference Paper, 2017
  • Naughton O., McCormack T., Bradford R., McAteer J., Morrissey P., Gill L., Hickey C, Lee M., GWFlood: Monitoring, modelling and mapping groundwater flood hazards in Ireland, Geotechnical Society of Ireland Conference 2017 "Geotechnical Engineering for Ground and Surface Water", Portlaoise, Ireland, 15th November, 2017Conference Paper, 2017
  • Weldon, P., Morrissey, P. and O'Mahony, M., Long-Term Cost of Ownership Comparative Analysis between Electric Vehicles and Internal Combustion Engine Vehicles, Sustainable Cities and Society, 39, 2018, p578 - 591Journal Article, 2018, DOI , URL
  • Morrissey P., Gill L.W., A two dimensional terrain and pipe network model of a lowland karst catchment in the west of Ireland, Eurokarst 2018, Besancon, France, 2nd - 6th July, 2018, pp1Conference Paper, 2018
  • Weldon, P., Morrissey, P.& O'Mahony, M., Micro-Analysis of the Fueling Costs of Electric Vehicles in Consideration of the Range of Options Available to Electric Vehicle Users, Annual Meeting of the Transportation Research Board, Washington D.C., Jan, 2019, pp12Conference Paper, 2019, TARA - Full Text
  • Gill L.W., Knappe J., Morrissey P., A comparison of falling head vs constant head percolation tests using field results and numerical modeling to determine the hydraulic conductivity of soils, Geophysical Research Abstracts, EGU General Assembly, Vienna, Austria, 7th-12th April, 21, 2019Conference Paper, 2019
  • Morrissey P., Gill L., McCormack T., Naughton O. , Modelling engineering solutions to groundwater flooding in a lowland karst catchment, Geophysical Research Abstracts, EGU General Assembly, Vienna, Austria, 7th-12th April, 21, 2019Conference Paper, 2019
  • Gill L.W., Morrissey P., McCormack T., Naughton O., Johnston P., Groundwater flooding - assessment of different engineered flood relief schemes using a semi-distributed model of a lowland karst system, 46th International Association of Hydrogeologists (IAH) International Congress, Malaga, Spain, 22nd-27th September , 2019Conference Paper, 2019
  • Morrissey P., McCormack T., Naughton O., Johnston P.M., Gill L.W., Modelling groundwater flooding in a lowland karst catchment, Journal of Hydrology, 580, 2020, p124361Journal Article, 2020, DOI
  • Gill L.W., Schuler, P., Duran, L., Johnston P.M., Morrissey P., An evaluation of semi-distributed-pipe-network and distributed-finite-difference models to simulate karst systems, Hydrogeology Journal, 27, 2021, p259 - 279Journal Article, 2021, DOI
  • McCormack T., Naughton O., Bradford R., Campanyà J., Morrissey P., Gill L., Lee M., GWFlood Project: Monitoring, Modelling and Mapping Karst Groundwater Flooding in Ireland, Dublin, Ireland, Geological Survey Ireland, 2020, p1 - 108Report, 2020, URL
  • Morrissey P., Nolan P., McCormack T., Johnston P.M., Naughton O., Gill L.W., Impacts of climate change on groundwater flooding and ecohydrology in lowland karst, Hydrology and Earth System Sciences , 25, 2021, p1923 - 1941Journal Article, 2021, DOI
  • Bhatnagar S., Gill L.W., Waldren S., Sharkey N., Naughton O., Johnston P., Coxon C., Morrissey P., Ghosh B., Ecohydrological metrics for vegetation communities in turloughs (ephemeral karstic wetlands), Ecohydrology, 14, 2021, pe2316Journal Article, 2021, DOI
  • Gill L.W. Mac Mahon J., Knappe J., Morrissey P., An investigation into the validity of using falling head percolation tests as part of a field assessment procedure for the design of on-site wastewater treatment systems, EGU General Assembly 2021 , online, 19th-13th April 2021, EGU21-12355, 2021Conference Paper, 2021, DOI
  • Basu B., Morrissey P., Gill L.W., Application of nonlinear time series and machine learning algorithms for forecasting groundwater flooding in a lowland karst area, Water Resources Research, 58, 2022, pe2021WR029576Journal Article, 2022, DOI
  • Patrick Morrissey, The hydrogeology of the Gort Lowlands, Irish Journal of Earth Sciences, 36, 2018, p1Journal Article, 2018, DOI
  • Patrick Morrissey, An investigation into the effects of the density of on-site wastewater treatment systems on Irish aquifer, Trinity College Dublin, 2014Thesis, 2014, URL
  • Gill L.W., Mac Mahon J., Knappe J., Morrissey P., Hydraulic conductivity assessment of falling head percolation tests used for the design of on-site wastewater treatment systems, Water Research, 236, (119968), 2023Journal Article, 2023, DOI
  • Savatier M., Morrissey P., Gill L.W., Rocha C., Intercomparison of marine tracer and catchment-based submarine groundwater discharge estimates for a karst aquifer, Journal of Hydrology, 627, 2023, p130358-Journal Article, 2023, DOI , TARA - Full Text
  • Morrissey P., Naughton O., McCormack T., Johnston P.M., Gill L.W., A methodology for groundwater flood frequency analysis within karst aquifers, World Groundwater Congress IAH2024, Davos, Switzerland, 8th -13th September, 2024Conference Paper, 2024, URL
  • Tabbussum R., Basu B., Morrissey P. J., Gill L.W., Enhancing flood predictions: a comprehensive neural network approach for groundwater flooding in lowland karst areas, Environmental Modelling and Software, 192, 2025, p106591Journal Article, 2025, DOI
  • Chowdhury N., Morrissey P., Gill L.W., A comparison between numerical, neural network, and hybrid modelling approaches to simulate spring flow from a karst catchment in northwest Ireland using long-term hydrological data, Journal of Hydrology Regional Studies, 61, 2025, p102723Journal Article, 2025, DOI
  • Dalton, Catherine, DeEyto, Elvira, Jennings, Eleanor, Lakes in Ireland: Mirrors of Change, 2024Book, 2024, URL
  • Blanc, Charlotte and Oldbury-Thomas, Donna and Morrissey, Patrick, Mental Health Impacts of Agri-Environmental Schemes: Insights from Agricultural Advisors in France and Ireland, Sustainability, 17, (17), 2025Journal Article, 2025, DOI
  • Pereiro Dieg, Dabrowski Tomas, Tully Olive, Lyons Kiera, Morrisey Patrick, Daly Eogha, Basu Bidroh, Kelly Diarmui, O†Halloran Gerr, O†Dowd Col, Nolan Glen, Gill Laurenc, Habitat suitability assessment for native oyster based on temperature and salinity modelling in an estuarine environment, Ocean Dynamics, 75, (10), 2025, p86-Journal Article, 2025, DOI , URL
  • Stephen Calvin, Huxley Brian, Byrne John A., Morrissey Patrick, Kelly-Quinn Mary, McNabola Aonghus, Integrating Fish-Friendly Hydropower Solutions with the Nature Restoration Policy Through River Barrier Modification, Energies, 18, (22), 2025Journal Article, 2025, DOI
  • Kristina Petra Zubovic; Calvin Stephen; John Byrne; Patrick Morrissey; Mary Kelly-Quinn; Aonghus Mcnabola, An Archimedes Screw Based Barrier Modification System: Synergistic Approach to Nature Restoration and Renewable Energy Generation, Proceedings of the 41st IAHR World Congress, Singapore, 22 - 27 June, 2025Conference Paper, 2025, URL
  • Morrissey P.J., Gill L.W., Johnston P.M., The impact of on-site wastewater treatment for small community developments on groundwater quality, SmallWat11 3rd International Congress Wastewater in Small Communities, Seville, Spain, 25th - 28th April, 2011, pp17 - 24Conference Paper, 2011
  • Gill L.W., Morrissey P., Johnston P.M., The dispersion of domestic on-site wastewater effluent by groundwater downstream of cluster developments, Dooge-Nash International Symposium, Dublin Castle, Dublin, 24th- 25th April, 2014, pp131 - 142Conference Paper, 2014
  • Morrissey P., Gill L.W., McCormack T., Naughton O., Modelling groundwater flooding. A unqiue challenge requirng a novel solution: a case study of south Galway, Proceedings of the 38th Annual Groudnwater Conference, IAH Irish Group, Tullamore, Ireland, 24th-25th April, II, 2018, pp9 - 16Conference Paper, URL
  • Morrissey P., Johnston P., Gill L.W., Groundwater flood modelling in the karst lowlands of South Galway, National Hydrology Conference, Mullingar, Ireland, 20th November , 2018Conference Paper
  • McCormack T., Naughton O., Campanya J., Morrissey P., Gill L., New groundwater flood maps for Ireland, GSI Groundwater Newsletter, 59, 2021, p35 - 38Journal Article, URL
  • Morrissey P., Gill L.W., McCormack T., Naughton O., Johnston P.,, Gort Lowlands Groundwater Flood Modelling final project report, 2021Report, URL
  • Morrissey, PJ.,, Groundwater & NBS: Water 4All, Proceedings of the 44th Annual Groundwater Conference, Tullamore, Ireland, 16 - 17th April, 2024Conference Paper, URL
  • Morrissey, PJ., 'Groundwater Flooding in the Gort Lowland Karst', KARST HYDROGEOLOGY OF THE BURREN UPLANDS / GORT LOWLANDS: Field Guide, Dublin, Ireland, IAH Ireland, 2019, -Fieldwork collection, URL
  • Morrissey, PJ., 'Groundwater Research in Toonagh', INTERNATIONAL ASSOCIATION OF HYDROGEOLOGISTS (IRISH BRANCH) 2012 ANNUAL FIELD TRIP, Dublin, Ireland, 2012, -Fieldwork collection, URL
  • Patrick Morrissey , Robbie Meehan and Timothy Meadows, 'Sediment studies in the Boycetown Catchment, Trim " Kiltale, County Meath', THE HYDROGEOLOGY OF EAST CENTRAL IRELAND Field Guide, Dublin, Ireland, 2022, -Fieldwork collection, URL
  • Patrick Morrissey, Natural Water Retention Measures (NWRM) Overview and Recommendations for Use in Ireland, EPA, 2021Report, URL
  • Baumann, A., Morrissey, P., AgEvaluate " Integrating NbS Monitoring with Microprofiling and LiDAR for Policy-Ready Insights, Trinity School of Engineering Research & Innovation Showcase, Dublin, Ireland, 27-28 May, 2025Poster, URL
  • Shendurnikar, S., Ali, M., Morrissey, PJ., The effects of Nature-based Solutions on Greenhouse Gas Emissions and Microbial Ecology, Trinity School of Engineering Research & Innovation Showcase, Dublin, Ireland, 27-28 May, 2025Poster
  • Patrick Morrissey, Urban Geoheat: Harnessing Geothermal Energy Beneath Dublin, GSI/iCRAG Geothermal Workshop, Dublin, Ireland, 23rd October, 2025Oral Presentation
  • Morrissey P.J., Gill L.W., Johnston P.M. , The impact of on-site wastewater treatment for small community developments on groundwater quality , 8th Annual EPA postgraduate seminar, National Convention Centre, Dublin, 11th November 2010, 2011Poster
  • Morrissey P.J., Gill L.W., Johnston P.M., The impact of on-site wastewater treatment for small community developments on groundwater quality., International Symposium on Domestic Waste Water Treatment and Disposal Systems, Trinity College, Dublin, 10th-11th September, edited by L.W. Gill , 2012Poster

Recognition

  • Chartered Engineer with Engineers Ireland
  • Member of the International Association of Hydrogeologists
  • Member of the Irish RAMSAR Wetlands Committee (IRWC). The IRWC is a group set up to assist in the protection, appreciation and understanding of wetlands in Ireland and to promote the implementation of the RAMSAR convention. The primary objective of the IRWC is to promote the wise use and protection of all wetlands in Ireland. 1/11/2022