| DOI: | 10.1016/j.gloplacha.2014.02.004
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| 论文题名: | Quantifying storm tide risk in Fiji due to climate variability and change |
| 作者: | McInnes K.L.; Walsh K.J.E.; Hoeke R.K.; O'Grady J.G.; Colberg F.; Hubbert G.D.
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| ISSN: | 0921-8438
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| 出版年: | 2014
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| 卷: | 116 | | 起始页码: | 115
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| 结束页码: | 129
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| 语种: | 英语
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| 英文关键词: | Climate change
; El Nino Southern Oscillation
; Fiji
; Hydrodynamic modelling
; Inundation risk
; Pacific Islands
; Sea level rise
; Storm surge
; Storm tide
; Tropical cyclones
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| Scopus关键词: | El Nino southern oscillation
; Fiji
; Hydrodynamic modelling
; Pacific islands
; Sea level rise
; Storm surges
; Storm tide
; Tropical cyclone
; Climate change
; Floods
; Fluid dynamics
; Hurricanes
; Population statistics
; Risk perception
; Sea level
; Tide gages
; Tides
; Storms
; boundary condition
; climate change
; climate variation
; El Nino-Southern Oscillation
; hydrodynamics
; numerical model
; oceanic current
; risk factor
; sea level change
; storm surge
; tide gauge
; tropical cyclone
; Fiji
; Pacific islands
; Pacific Ocean
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| 英文摘要: | Extreme sea level events due to tropical cyclone storm surge combined with astronomical tide (storm tides) severely impact Pacific Island communities and these impacts are expected to increase with projected sea level rise. However, these sea level extremes are not well characterised by available tide gauge records owing to the low frequency of occurrence of tropical cyclones, the sparse array of tide gauges and the short time frame over which many gauges in this region have been operating. In this study, a combined statistical/dynamical method for estimating storm tide risk is presented. Tropical cyclones in the Fiji region over the period 1969-2007 are characterised in a statistical model that represents cyclone frequency, intensity and movement. The statistical model is then used to develop a population of "synthetic" cyclones that provide boundary conditions to a hydrodynamic storm surge and tidal model. This Monte-Carlo method is applied to the coasts of the Fiji archipelago. It is found that storm tide risk is higher on the northwest coasts of both the southern and northern main islands Viti Levu and Vanua Levu, respectively. Modelling suggests that there is a greater tendency for higher storm surges to occur on southwest Viti Levu under El Niño and La Niña years compared with average years, but elsewhere on Viti Levu and Vanua Levu, there is a tendency for slightly lower storm surges in La Niña years. Imposing perturbations to the cyclone statistical model that represent projected tropical cyclone changes in intensity and frequency for mid to late 21st Century, leads to storm tide return period curves that are steeper such that sea levels associated with return periods of 200. years or more become higher, those with return periods of 50. years and less become lower and the 1-in-100. year heights are little changed. Projected changes in sea level are found to make the largest contribution to increased extreme sea level risk. © 2014 Elsevier B.V. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84896855324&doi=10.1016%2fj.gloplacha.2014.02.004&partnerID=40&md5=c914a9b1d7b194b32ec6ee829341e620
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/11344
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| Appears in Collections: | 全球变化的国际研究计划
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作者单位: | CAWCR Centre for Australian Weather and Climate Research, CSIRO Marine and Atmospheric Research, Aspendale 3195, Australia
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| Recommended Citation: | |
McInnes K.L.,Walsh K.J.E.,Hoeke R.K.,et al. Quantifying storm tide risk in Fiji due to climate variability and change[J],2014-01-01,116.
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