Browsing College of Engineering and Informatics by Author "Olbert, Agnieszka Indiana"

Now showing items 1-20 of 23

    • Application of water quality index models to an Irish estuary 

      Uddin, Md Galal; Nash, Stephen; Olbert, Agnieszka Indiana (Civil Engineering Research Association of Ireland (CERAI), 2020-08-27)
      The paper investigates the application of different Water Quality Index (WQI) models for to estuarine waters. WQI models are aggregation based mathematical models that convert extensive water quality data into a single ...

    • Assessment of Tc-99 monitoring within the western Irish Sea using a numerical model 

      Olbert, Agnieszka Indiana; Hartnett, Michael; Dabrowski, Tomasz (Elsevier ScienceDirect, 2010-05-26)
      Water circulation patterns and associated material transport within a highly dynamic system such as the Irish Sea are complex phenomena. Although Tc-99 monitoring programme undertaken by the Radiological Protection Institute ...

    • Assessment of water quality using Water Quality Index (WQI) models and advanced geostatistical technique 

      Uddin, Md Galal; Olbert, Agnieszka Indiana; Nash, Stephen (Civil Engineering Research Association of Ireland (CERAI), 2020-08-27)
      Water quality index (WQI) models are popular tools to evaluate the quality of water; as such they have been developed and used by many agencies worldwide. However, the WQI model may generate excessive uncertainties in ...

    • Cyclonic circulation in the western Irish Sea in future climate 

      Olbert, Agnieszka Indiana; Hartnett, Michael; Dabrowski, Tomasz (International Association for Hydro-Environment Engineering and Research, 2011-07-01)
      The Irish Sea (IS) is a semi-enclosed body of water on the European Continental Shelf and the Western Irish Sea Gyre (WISG) is a characteristic phenomenon of the Sea. The gyre due to its significant effects on the circulation, ...

    • Determination of flushing characteristics of the Irish Sea: A spatial approach 

      Dabrowski, Tomasz; Hartnett, Michael T.; Olbert, Agnieszka Indiana (Elsevier ScienceDirect, 2011-12-08)
      The Authors devised a novel generic approach to assessing the flushing of the Irish Sea through the determination of spatially distributed residence times and the development of flushing homogeneity curves. Results indicate ...

    • Development of high-resolution multi-scale modelling system for simulation of coastal-fluvial urban flooding 

      Comer, Joanne; Olbert, Agnieszka Indiana; Nash, Stephen; Hartnett, Michael (Copernicus Publications, 2017-02-16)
      Urban developments in coastal zones are often exposed to natural hazards such as flooding. In this research, a state-of-the-art, multi-scale nested flood (MSN_Flood) model is applied to simulate complex coastal-fluvial ...

    • The effects of array configuration on the hydro-environmental impacts of tidal turbines 

      Fallon, David; Hartnett, Michael; Olbert, Agnieszka Indiana; Nash, Stephen (Elsevier, 2014-04)
      The economic viability of tidal turbines will require the deployment of multiple devices in array formations in a manner analogous to wind farms. This research investigates the effects of the configuration of a tidal turbine ...

    • Effects of complex hydrodynamic processes on the horizontal and vertical distribution of Tc-99 in the Irish Sea 

      Olbert, Agnieszka Indiana; Hartnett, Michael; Dabrowski, Tomasz (Elsevier ScienceDirect, 2010-10-14)
      The increased discharge of Tc-99 from the Sellafield plant following the commissioning of the Enhance Actinide Removal Plant in 1994 was reflected in higher Tc-99 activity concentrations over much of the Irish Sea The ...

    • High-resolution multi-scale modelling of coastal flooding due to tides, storm surges and rivers inflows: A Cork city example 

      Olbert, Agnieszka Indiana; Comer, Joanne; Nash, Stephen; Hartnett, Michael (Elsevier, 2017-01-31)
      This paper demonstrates the capability of a new state-of-the-art flood modelling system consisting of multiple nested models to simulate urban coastal flood inundation. A flood event in Cork City, Ireland which occurred ...

    • Influence of seasonal circulation on flushing of the Irish Sea 

      Dabrowski, Tomasz; Hartnett, Michael T.; Olbert, Agnieszka Indiana (Elsevier ScienceDirect, 2009-12-16)
      We applied a three-dimensional general ocean and coastal circulation model to the Irish Sea in order to determine water renewal time scales in the region. The model was forced with meteorological data for 1995, a year with ...

    • An integrated approach to trophic assessment of coastal waters incorporating measurement, modelling and water quality classification 

      Hartnett, Michael; Nash, Stephen; Olbert, Agnieszka Indiana (2012)
      Various protocols have been developed for trophic assessment of coastal waters but most incorporate single value compliance criteria for water quality parameters which, in reality, exhibit significant spatial variation. ...

    • Interactions, mechanisms and impact of future coastal urban flooding. A case study of Cork city 

      Kirkpatrick, Jennifer Isabel Munro; Nash, Stephen; Hartnett, Michael; Comer, Joanne; Olbert, Agnieszka Indiana (Hydrology Ireland, 2020-11-17)
      In coastal floodplains, high river flows and high coastal water levels can result in extensive flooding. Mechanisms of flooding play a crucial role in flood characteristics with distinctive differences in flood wave ...

    • Long-term inter-annual variability of a cyclonic gyre in the western Irish Sea 

      Olbert, Agnieszka Indiana; Hartnett, Michael; Dabrowski, Tomasz (Elsevier ScienceDirect, 2011-05-26)
      The western Irish Sea gyre (WISG) is a cyclonic baroclinic flow around a dome of stagnant water which develops each year during the heating season in the western Irish Sea. Research was carried out to determine long-term ...

    • Mechanisms of flooding in Cork City 

      Olbert, Agnieszka Indiana; Comer, Joanne; Nash, Stephen; Hartnett, Michael (International Association of Hydrological Sciences, 2015-11-17)
      Flooding is one of the most frequent and devastating natural disasters. Many urban developments are located in estuaries where river flow and sea water merge. Cork City situated in the River Lee estuary frequently subject ...

    • Modelling the effects of climate change on urban coastal-fluvial flooding 

      Munro Kirkpatrick, Jennifer Isabel; Olbert, Agnieszka Indiana (IWA Publishing, 2020-01-23)
      In coastal floodplains, high river flows and high coastal water levels can result in extensive flooding. Twenty-first century climate change is expected to alter these flood mechanisms. In this study, a coastal city of ...

    • Parameterization of turbulence models using 3DVAR data 

      Olbert, Agnieszka Indiana; Nash, Stephen; Hartnett, Michael (City University of New York, 2014-01-08)
      In this research the 3DVAR data assimilation scheme is implemented in the numerical model DIVAST in order to optimize the performance of the numerical model by selecting an appropriate turbulence scheme and tuning its ...

    • Regional modelling of the 21st century climate changes in the Irish Sea 

      Olbert, Agnieszka Indiana; Dabrowski, Tomasz; Nash, Stephen; Hartnett, Michael (Elsevier, 2012-06)
      An assessment of the complex evolution of climate change signals in the Irish Sea over the 21st century is presented in this paper. Potential impacts of climate change on the local hydrography are explored and interrelationships ...

    • Remote sensing of surface waters in Ireland 

      Agarwal, Anuj; Taveneau, Adélaïde; Olbert, Agnieszka Indiana (Civil Engineering Research Association of Ireland (CERAI), 2018-08-29)
      An implementation of the WFD requires all surface waters in the EU to achieve at least good status; this requirement has not been achieved in Ireland. Just over 30% of transitional waters and 79% of coastal waters were ...

    • A review study of water quality index models and their use for assessing surface water quality 

      Uddin, Md Galal; Nash, Stephen; Olbert, Agnieszka Indiana (Elsevier, 2020-12-17)
      The water quality index (WQI) model is a popular tool for evaluating surface water quality. It uses aggregation techniques that allow conversion of extensive water quality data into a single value or index. Globally, the ...

    • Storms and surges in Irish coastal waters 

      Olbert, Agnieszka Indiana; Hartnett, Michael (Elsevier ScienceDirect, 2010-04-29)
      Mechanisms of storm surge formation and severity on the north European continental shelf and, in particular, in the Irish coastal waters are examined in this paper. A numerical surge model was developed and used in combination ...