Changeset 3240
- Timestamp:
- Jun 26, 2006, 10:15:11 PM (19 years ago)
- Location:
- production/onslow_2006/report
- Files:
-
- 9 edited
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computational_setup.tex (modified) (4 diffs)
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damage.tex (modified) (6 diffs)
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discussion.tex (modified) (1 diff)
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interpretation.tex (modified) (5 diffs)
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introduction.tex (modified) (2 diffs)
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modelling_methodology.tex (modified) (1 diff)
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references.tex (modified) (1 diff)
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summary.tex (modified) (1 diff)
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tsunami_scenario.tex (modified) (1 diff)
Legend:
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production/onslow_2006/report/computational_setup.tex
r3235 r3240 14 14 15 15 {\bf Need some words here about why pick 100m.} 16 16 Preliminary investigations indicate that MOST and ANUGA compare 17 well at the 100m contour line. 17 18 18 19 \begin{figure}[hbt] … … 75 76 {../report_figures/mesh.jpg}} 76 77 77 \caption{Computational mesh for Onslow study area.} 78 \caption{Computational mesh for Onslow study area where the 79 cell areas increase in resolution; 500 m$^2$, 2500 m$^2$, 20000 80 m$^2$ and 100000 m$^2$.} 78 81 \label{fig:mesh_onslow} 79 82 \end{figure} … … 84 87 as described in Section \ref{sec:methodology}. 85 88 MOST was used to initiate the event and propagate the wave in deep water. 86 ANUGA uses MOST's output in form of the wavesamplitude and velocity at89 ANUGA uses the MOST wave amplitude and velocity at 87 90 the boundary (the 100m contour line as shown in Figure \ref{fig:onslow_area}) 88 91 and continues to propagate the wave in shallow water and onshore. … … 91 94 Figure \ref{fig:MOSTsolution} as a surface showing the wave's 92 95 amplitude as a function of its spatial location and time. 93 96 This figure shows how the wave has been affected by the bathymetry in 97 arriving at these locations as the amplitude is variable. It is also 98 important to note that the tsunami is made up of a series of 99 waves with different amplitudes. 94 100 95 101 \begin{figure}[hbt] -
production/onslow_2006/report/damage.tex
r3237 r3240 4 4 In this report, impact modelling refers to damage as a result 5 5 of the inundation described in Section \ref{sec:results}. This damage 6 is reported as to damage to infrastructure as well as 7 number of human injuries. The infrastructure 6 is reported as damage to infrastructure as well as 7 number of human injuries and is determined assuming 8 that the event occurs at night. The infrastructure 8 9 refers to residential structures only and is sourced from the 9 10 the National Building Exposure Database (NBED). The NBED has been … … 22 23 To develop building damage and casuality estimates, we briefly describe 23 24 residential collapse probability models and casualty models and their 24 application to inundation modelling. 25 With limited data found in the international literature, 26 along with reported observations made of building performance during the 25 application to inundation modelling. There is limited data found in 26 the international literature to support to the development of 27 vulnerability models. However, 28 with reported observations made of building performance during the 27 29 recent Indian Ocean tsunami, vulnerability models have been proposed for 28 30 framed residential construction. The models predict the collapse … … 50 52 sleeping height (1.0 m) and the limited warning noise for people 51 53 in the first three city blocks (six house rows) that could potentially 52 awaken them. The three injury categories correspond edwith the54 awaken them. The three injury categories correspond with the 53 55 categories presented in HAZUS-MH \cite{NIBS:2003} for earthquake 54 56 related injury. The casualty model used is presented in Table 55 57 \ref{table:casualty} 56 58 and the injury categories are presented in Table \ref{table:injury}. 57 Input data comprised resident population data at CD level derived58 from the ABS 2001 census.59 Input data comprised of resident population data at census 60 district level derived from the ABS 2001 census. 59 61 60 62 The damage to the residential structures in the Onslow community … … 73 75 \begin{table}[h] 74 76 \label{table:damageoutput} 75 %\caption{Residential damage sustained for 1.5m, 0m and -1.5m AHD scenarios.}76 77 \caption{Residential damage sustained for the 0m AHD scenario.} 77 78 \begin{center} 78 \begin{tabular}{|l|l|l|l|l|l| l|}\hline79 &Houses & Houses & Structural & Repair Cost \% & Contents & Contents Loss \% \\80 &Inundation & Collapsed & Repair Cost79 \begin{tabular}{|l|l|l|l|l|l|}\hline 80 Houses & Houses & Structural & Repair Cost \% & Contents & Contents Loss \% \\ 81 Inundation & Collapsed & Repair Cost 81 82 & of Total Value & Losses & of Total Value \\ \hline 82 %1.5m AHD & 90 & 14 & \$10,951,887 & 18.2 \% & \$24,020,309 & 28.12 \%\\ \hline 83 0m AHD & 54 & 1 & \$5,317,783 & 8.8 \% & \$11,592,602 & 13.6 \% \\ \hline 84 %-1.5m AHD & 0 & 0 & 0& 0& 0& 0\\ \hline 83 54 & 1 & \$5,317,783 & 8.8 \% & \$11,592,602 & 13.6 \% \\ \hline 85 84 \end{tabular} 86 85 \end{center} … … 89 88 \begin{table}[h] 90 89 \label{table:injuries} 91 %\caption{Injuries sustained for 1.5m, 0m and -1.5m AHD scenarios.}92 90 \caption{Injuries sustained for the 0m AHD scenario.} 93 91 \begin{center} 94 92 \begin{tabular}{|l|l|l|l|l|}\hline 95 & Minor & Moderate & Serious & Fatal \\ \hline 96 %1.5m AHD & 59 & 17 & 8 & 83 \\ \hline 97 0m AHD & 43 & 11 & 6 & 20 \\ \hline 98 %-1.5m AHD & 0 & 0 & 0 & \\ \hline 93 Minor & Moderate & Serious & Fatal \\ \hline 94 43 & 11 & 6 & 20 \\ \hline 99 95 \end{tabular} 100 96 \end{center} 101 97 \end{table} 102 103 98 104 99 Impact on indigeneous communities are important considerations when determining … … 109 104 in Figure 110 105 \ref{fig:points}. The population of the Bindibindi community is 140 106 (18 \% of the Onslow population) 111 107 and is situated close to the coast as seen in Figure \ref{fig:points}. 112 108 At 0m AHD, over 2m of water will inundate parts of the community (Figure -
production/onslow_2006/report/discussion.tex
r3235 r3240 10 10 recommending this be extended to three years to capture 11 11 changes to the mean sea level. Onslow is listed as 12 a Standard Port. These predictions are ultimately rounded on a single 13 decimal place. 12 a Standard Port. 14 13 15 14 Figure \ref{fig:contours} shows the contour lines for 16 theHAT, MSL and LAT for Onslow.15 HAT, MSL and LAT for Onslow. 17 16 It is evident from this figure that the extent of the tidal 18 17 inundation is exaggerated which is due to -
production/onslow_2006/report/interpretation.tex
r3237 r3240 1 2 1 The main features of the 3 2 tsunami wave and resultant impact ashore is described in this section. … … 6 5 in an emergency situation, such as the hospital and power station, or 7 6 effect recovery efforts, such as the airport and docks. These locations 8 are described in table \ref{table:locations} and shown in7 are described in Table \ref{table:locations} and shown in 9 8 Figure \ref{fig:points}. The water's stage and speed are shown 10 9 as a function of time in the series of graphs shown in 11 10 Section \ref{sec:timeseries}. Stage is defined as the absolute 12 11 water level relative to AHD. Both stage and spped are shown 13 on consistent scales to comparebetween point locations.12 on consistent scales to allow comparison between point locations. 14 13 %The graphs show these time series for 15 14 %the three cases; 1.5m AHD, 0m AHD and -1.5m AHD so that comparisons can … … 24 23 \begin{center} 25 24 \begin{tabular}{|l|l|}\hline 26 Velocity (m/s) & Example\\ \hline25 {\bf Velocity (m/s)} & {\bf Example} \\ \hline 27 26 1 & leisurely stroll pace\\ \hline 28 27 1.5 & average walking pace \\ \hline … … 36 35 \end{center} 37 36 \end{table} 38 39 37 40 38 Examining the offshore locations shown in Section \ref{sec:timeseries}, … … 64 62 Groyne location (Figure \ref{fig:20060515001733gaugeWestofGroyne}) 65 63 with speeds halved at the Beadon Bay west location. 66 The Beadon Bay west speedis greater than the east of Beadon64 The speed at west of Beadon Bay is greater than the east of Beadon 67 65 Bay location (Figure \ref{fig:20060515001733gaugeBeadonBayeast}). 68 66 There is similar differences in amplitude (from drawdown to maximum -
production/onslow_2006/report/introduction.tex
r3232 r3240 14 14 15 15 This report is the first in a series of studies which 16 becomes a component ofthe suite of tsunami assessments for the North West16 go towards building the suite of tsunami assessments for the North West 17 17 Shelf. 18 18 Subsequent reports will not only … … 32 32 The report will outline the methods of modelling the tsunami from its 33 33 source to its impact ashore and present the predicted consequences. 34 Section \ref{sec:tsunamiscenario} provides 35 the background to the scenario used for this study. Whilst 36 the return period of this scenario is unknown, it 37 can be be classed as a plausible event, see Section \ref{sec:tsunamiscenario}. 34 The scenario used for this study has an unknown 35 return period, however it 36 can be classed as a plausible event, see Section \ref{sec:tsunamiscenario}. 38 37 Future studies 39 38 will present a series of scenarios for a range of return periods to -
production/onslow_2006/report/modelling_methodology.tex
r3238 r3240 23 23 elevation data. 24 24 Linear models typically use data resolutions of the order 25 of hundreds of metres, which is sufficient to model long wavelength tsunami waves. 26 Non-linear models by contrast require much finer resolution in order to capture 25 of hundreds of metres, which is sufficient to model the tsunami waves 26 in deeper water where the wavelength is longer. 27 Non-linear models however require much finer resolution in order to capture 27 28 the complexity associated with the water flow from off to onshore. By contrast, the data 28 29 resolution required is typically of the order of tens of metres. 29 30 The model ANUGA \cite{ON:modsim} is suitable for this type of non-linear 30 31 modelling. 31 32 However, using a non-linear model capable of resolving local bathymetric effects 32 Using a non-linear model capable of resolving local bathymetric effects 33 33 and runup using detailed elevation data will require much more computational 34 34 resources than the typical hazard model making it infeasible to use it -
production/onslow_2006/report/references.tex
r3238 r3240 40 40 41 41 \bibitem{cooper:2005} 42 Cooper, D. (2005) Personal Communication at NSW Tsunami Workshop 12th and43 13th April, Masonic Centre, Goulburn St, Sydney.42 Cooper, D. (2005) Risk Research Group Personal Communication at NSW Tsunami 43 Workshop 12th and 13th April, Masonic Centre, Goulburn St, Sydney. 44 44 45 45 \bibitem{NIBS:2003} National Institute of Building Sciences (2003) -
production/onslow_2006/report/summary.tex
r3238 r3240 1 2 This report has described the impact to Onslow from a Mw 9 earthquake 3 generated from the Sunda Arc subduction zone occurring at 4 Mean Sea Level. 5 There is no knowledge of the return period for this event. 1 This report has described the impact to Onslow from a tsunami 2 generated by a Mw 9 earthquake on the Sunda Arc subduction zone 3 occurring at Mean Sea Level. 4 There is no knowledge of the return period for this event. The 5 modelling methodology, assumptions and data sources have also 6 been described. 6 7 As discussed in Section \ref{sec:issues}, there are issues 7 8 with the underlying data set which may have vertical inaccuracies -
production/onslow_2006/report/tsunami_scenario.tex
r3232 r3240 23 23 they are likely to pose a comparatively low and more localised hazard to WA. 24 24 25 Figure \ref{fig:mw9} shows the maximum wave height at the 50m contour26 fora Mw 9 event off25 Figure \ref{fig:mw9} shows the maximum wave height of a tsunami initiated 26 by a Mw 9 event off 27 27 the coast of Java. It is this event which provides the source and 28 28 boundary condition to the
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