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NT Remote Communities Storm Tide Study and Inundation Mapping



NT Remote Communities Storm Tide Study and Inundation Mapping


Systems Engineering Australia Pty Ltd

Issued by

Northern Territory. Department of Land Resource Management


E-Publications; E-Books; PublicationNT; J1507-PR001B




Made available via the Publications (Legal Deposit) Act 2004 (NT).; 'This report documents tropical cyclone (TC) storm tide hazard analyses that will provide the basis for reliable risk analyses of major remote towns and indigenous communities on the West Coast, Arnhem Land and Tiwi Islands.' - Introduction


This Storm Surge Study Report was produced with funding provided by the Northern Territory and Australian Governments through the Natural Disaster Resilience Program. 'Numerical Modelling and Risk Assessment' - on cover.; Made available via the Publications (Legal Deposit) Act 2004 (NT).

Table of contents

Executive summary -- Introduction -- The study localities -- Methodology to assess the storm tide hazard -- Simulation model results -- Conclusion -- References -- List of Appendices A-C.




Storm surges; Storm surges; Cyclones; Maps; Mathematical models

Publisher name

Northern Territory Government

Place of publication





vi, 62, 4,3,8 pages : colour illustrations, colour maps ; 30 cm.

File type



Attribution International 4.0 (CC BY 4.0)

Copyright owner

Northern Territory Government



Parent handle


Citation address


Page content

NT Department of Land Resource Management NT Remote Communities Storm Tide Study and Inundation Mapping J1507-PR001B 30 Systems Engineering Australia Pty Ltd July 2016 Figure 3-8 Coverage and extent of the NTU tidal model (red) and the location of sites (triangles) having recorded tide data. 3.6 Hydrodynamic and Spectral Wave Model Domains A number of pre-existing numerical hydrodynamic modelling domains have been re-used, with minor modification or extension to suit the present needs. The spatial parameters of each of the coastal domains is summarised below in Table 3-1 and the extents are further graphically illustrated in Figure 3-9. Larger scale open ocean domains also exist. 3.6.1 Hydrodynamic All of these model domains have been created for the MMUSURGE model (Mason and McConochie 2001), which was developed for the QCCC studies (e.g. Harper 2001) and provides for computational efficiency over large areas. These model domains are nested within each other as necessary to provide the desired resolution in each area of interest, which typically varies from 13.9 km, to 2.78 km and then 0.56 km in coastal areas surrounding the Study sites. 3.6.2 Waves and Wave Setup The Study has utilised the WAMGBR 3rd generation spectral wave model (Hardy, McConochie and Mason, 2001) and shares the same model regions and resolutions as the hydrodynamic model. Wave setup impacts are then based on the modelled nearshore wave estimates following Stockdon et al. (2006), with a nominal11 beach slope of 0.02 applied throughout. 11 No reliable beach slope data could be located for the regions under study.