Changes to water resources resulting from sea level rise and climate change

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Authors
Tutulic, Marija R.
Shamseldin, Asaad
De Costa, Gregory
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Degree
Grantor
Date
2015-07
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Type
Conference Contribution - Paper in Published Proceedings
Ngā Upoko Tukutuku (Māori subject headings)
Keyword
Whaiwhetu Aquifer (Lower Hutt, New Zealand)
sea level rise
groundwater
FEFLOW 6.1 (groundwater modelling package)
ANZSRC Field of Research Code (2020)
Citation
Tutulic, M., Shamseldin, A., & De Costa, G. S. (2015, June). Changes to water resources resulting from sea level rise and climate change. IAHR (Ed.), Proceedings of the 36th Congress of the IAHR.
Abstract
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 of almost completely urbanized area of Lower Hutt, north of Wellington City. In the past 100 years sea level raised on average 0.2 m in Wellington region and it is predicted that by the 2090 sea level will increase by 0.8 m and by 2115 almost 1m. Therefore an investigation has been carried out by developing a three-dimensional hydrodynamic numerical model. Numerical model was developed using comprehensive groundwater modelling package FEFLOW 6.1. Once the model was developed and calibrated, four scenarios were investigated. Scenario 1 assumed the increase of 0.5 m of the mean seawater level (MSL). Scenario 2, Scenario 3 and Scenario 4 assumed an increase of 1.0 m, 1.5 m and 2.0 m MSL respectively. The changes were compared in nine observation bores and the results are presented
Publisher
International Association for Hydro-Environment Engineering and Research
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DOI
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International Association for Hydro-Environment Engineering and Research (IAHR)
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