Show simple record

dc.contributor.authorDe Costa, Gregory
dc.contributor.authorDassanayake, Wajira
dc.date.accessioned2016-08-25T20:32:50Z
dc.date.available2016-08-25T20:32:50Z
dc.date.issued2016-09
dc.identifier.issn2331-625X
dc.identifier.issn2331-6268
dc.identifier.urihttps://hdl.handle.net/10652/3548
dc.description.abstractThis paper highlights investigation and the impacts on the changes in groundwater table caused by sea level rise due to climate change in Wellington New Zealand and translates it to possible impacts in Colombo Sri Lanka. Similarly the possible loss of land due to elevated sea level rise has been investigated. In the past 100 years sea level raised on average by 0.2m 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. Thereafter taking into consideration the variability of rainfall these estimations have been translated for Colombo. The loss of land is also analysed for those four cases. The loss of the land due to sea level rise was estimated by using ArcGIS (ESRI, 2012). The affected area by the sea level is defined by the corresponding contour, 0.5 m, 1.0 m, 1.5 m and 2.0 m, and the coastline which corresponds to 0 m contour and the sea level at present day. Again these results have been translated to Colombo and presented.en_NZ
dc.language.isoenen_NZ
dc.publisherHorizon Research Publishing (HRPUB)en_NZ
dc.rightsCreative Commons Attribution-NonCommercial 4.0 International License.en_NZ
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/nz/*
dc.subjectWellington (N.Z.)en_NZ
dc.subjectColombo (Sri Lanka)en_NZ
dc.subjectwater tablesen_NZ
dc.subjectchanges to water tablesen_NZ
dc.subjectsea level riseen_NZ
dc.subjectland lossen_NZ
dc.subjectmodellingen_NZ
dc.subjectNew Zealanden_NZ
dc.subjectSri Lankaen_NZ
dc.titleEstimation of impact of sea level rise on land and water resources when data is sparse - case of Colombo. Environment and ecology researchen_NZ
dc.typeJournal Articleen_NZ
dc.rights.holderAuthorsen_NZ
dc.identifier.doi10.13189/eer.2016.040502.en_NZ
dc.subject.marsden090509 Water Resources Engineeringen_NZ
dc.identifier.bibliographicCitationDe Costa, G. S., & Dassanayake, W. (2016). Estimation of Impact of Sea Level Rise on Land and Water Resources When Data Is Sparse - Case of Colombo. Environment and Ecology Research, 4(5), pp.244-250. doi:10.13189/eer.2016.040502.en_NZ
unitec.institutionUnitec Institute of Technologyen_NZ
unitec.publication.spage244en_NZ
unitec.publication.lpage250en_NZ
unitec.publication.volume4(5)en_NZ
unitec.publication.titleEnvironment and Ecology Researchen_NZ
unitec.peerreviewedyesen_NZ
dc.contributor.affiliationUnitec Institute of Technologyen_NZ
unitec.identifier.roms59245en_NZ
unitec.identifier.roms59239
unitec.institution.studyareaConstruction + Engineering


Files in this item

Thumbnail
Thumbnail

This item appears in

Show simple record