• Analysing rain garden infiltration efficiency using MOUSE Model 

      Li, H.; De Costa, Gregory (International Association For Hydro-Environment Engineering and Research (IAHRAPD), 2016-08)
      A MOUSE model was developed to simulate rain garden and calculate the annual stormwater runoff volume. The key parameter settings of the simulation model are strictly built on Auckland Regional Council Technical Publications ...
    • Analysis of employability skills for civil engineers in New Zealand 

      Sharma, Madhvi; De Costa, Gregory; Heyzer, Daymon (Institution of Engineers Australia, 2014-12)
      Background The transition from university to a career in civil engineering is a challenging process. This study examined the perceptions of engineering graduates regarding the difficulties they encountered in their ...
    • Application of floating vegetative pads (FVP) to improve stormwater quality : a pilot scale study 

      Yu, Ronald; Mahmood, Babar; De Costa, Gregory; Phillips, David (2016-08)
      Henderson Creek contributes one of the largest load of sediments & heavy metals (e.g. Copper - Cu and Zinc - Zn) into the Central Waitemata Harbour, Auckland. Cu and Zn particles do not decompose so they are persistent, ...
    • Changes to water resources resulting from sea level rise and climate change 

      Tutulic, Marija R.; Shamseldin, Asaad; De Costa, Gregory (International Association for Hydro-Environment Engineering and Research, 2015-07)
      This paper highlights investigation and the impacts of the changes in groundwater table caused by sea level rise due to climate change in Whaiwhetu Aquifer, Lower Hutt, New Zealand. The aquifer is located in coastal zone ...
    • Exploring changes in Nitrate contamination in the coastal and Hautere zone Aquifer Wellington New Zealand 

      Wanigasekera, Deepthi Jayatha Dias-; De Costa, Gregory; Worden, John; Wanigasekera, Beatrice Dias- (International Association for Hydro-Environment Engineering and Research (IAHR), 2013)
      Fifteen years of groundwater quality monitoring in the Kapiti Coast by the local authority in Wellington, New Zealand, has identified an area of elevated nitrate concentrations in the Te Horo area, with some monitoring ...
    • Loss of land surface resulting from sea level rise and climate change 

      Tutulic, Marija R.; Shamseldin, Asaad; De Costa, Gregory (International Association for Hydro-Environment Engineering and Research, 2015-07)
      The sea level rise in the Wellington Region has been studied recently and results have been presented in the report Sea-level variability and trends: Wellington Region (Bell and Hannah, 2012). In the last 100 years the sea ...
    • Simplified model forecasting changes to groundwater table and land lost due to sea level rise 

      Li, Jiannan; De Costa, Gregory; Phillips, David (International Association for Hydro-Environment Engineering and Research (IAHR), 2016-08)
      It is well known that climate change is causing sea levels to change worldwide. This sea level increase is causing loss of land and changes to water table in coastal zones. There are sophisticated models such as ARCGIS, ...
    • Simplified model to estimate impact on coastal water resources and loss of shore line land due to climate change and sea level rise 

      Ogunililusi, A.; De Costa, Gregory (International Association for Hydro-Environment Engineering and Research (IAHR), 2017-08)
      This paper presents a review of past to current observations in the study of climate change and sea-level rise. It appraised the relationship between climate change and sea-level rise, and other drivers on the climate ...
    • Study on water sustainability in Tahiti 

      Terai, P.; De Costa, Gregory; Mahmood, Babar (2014-12)
      With an overall huge amount of water available in Tahiti, we might think that future generations have no reason to worry; however, this is not reflecting the real aspect of water availability in each district. By analysing ...