Remote forcing of water levels by tropical cyclones in southwest Australia

Eliot, Matt; Pattiaratchi, Charitha

doi:10.1016/j.csr.2010.06.002

Cited by 42 publications

(25 citation statements)

References 39 publications

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“…The continental shelf wave of line 2 would appear to have the largest crest elevations ever reported: typical crest‐trough heights for freely propagating waves are cm to tens of cm. Some of the largest reported in the literature are given by Fandry et al [1984] (∼75 cm), Thiebaut and Vennell [2010] (∼90 cm), and Eliot and Pattiaratchi [2010] (∼63 cm). It should also be noted that Morey et al [2006] computed a crest height of 1.4 m for a forced topographic wave traveling parallel to Hurricane Dennis.…”

Section: Hurricane Ike Forerunner Observationsmentioning

confidence: 94%

Origin of the Hurricane Ike forerunner surge

Kennedy

Gravois

Zachry

et al. 2011

Geophys. Res. Lett.

120

116

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A large, unpredicted, water level increase appeared along a substantial section of the western Louisiana and northern Texas (LATEX) coasts 12–24 hrs in advance of the landfall of Hurricane Ike (2008), with water levels in some areas reaching 3 m above mean sea level. During this time the cyclonic wind field was largely shore parallel throughout the region. A similar early water level rise was reported for both the 1900 and the 1915 Galveston Hurricanes. The Ike forerunner anomaly occurred over a much larger area and prior to the primary coastal surge which was driven by onshore directed winds to the right of the storm track. We diagnose the forerunner surge as being generated by Ekman setup on the wide and shallow LATEX shelf. The longer forerunner time scale additionally served to increase water levels significantly in narrow‐entranced coastal bays. The forerunner surge generated a freely propagating continental shelf wave with greater than 1.4 m peak elevation that travelled coherently along the coast to Southern Texas, and was 300 km in advance of the storm track at the time of landfall. This was, at some locations, the largest water level increase seen throughout the storm, and appears to be the largest freely‐propagating shelf wave ever reported. Ekman setup‐driven forerunners will be most significant on wide, shallow shelves subject to large wind fields, and need to be considered for planning and forecasting in these cases.

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Section: Hurricane Ike Forerunner Observationsmentioning

confidence: 94%

Origin of the Hurricane Ike forerunner surge

Kennedy

Gravois

Zachry

et al. 2011

Geophys. Res. Lett.

120

116

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“…Hamon (1962) found phase propagation using the spectra of the daily mean sea level data (corrected by atmospheric pressure) along the eastern Australian coast from July 1957 to December 1958. The trough-crest analysis is another way for detecting CTWs using the filtered tidal gauge data (Eliot and Pattiaratchi, 2010;Maiwa et al, 2010;Ding et al, 2012). The empirical mode decomposition (EMD) analysis is a new method, which has been used to identify the CTWs (Yin et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Wavelet analysis of coastal-trapped waves along the China coast generated by winter storms in 2008

Zheng

et al. 2015

Acta Oceanol. Sin.

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This study applies the wavelet analysis to the tidal gauge records, alongshore winds, atmospheric temperature and pressure along the China coast in winter 2008. The analysis results show three events of sea level oscillations (SLOs) on the shelf induced by winter storms. The first event occurred from January 9 to 21. The SLO periods were double-peaked at 1.6-5.3 and 7.0-16.0 d with the power densities of 0.04-0.05 and 0.10-0.15 m 2 ·d, respectively. The second event occurred from February 5 to 18. The SLO period was single-peaked at 2.3-3.5 d with power density of 0.03-0.04 m 2 ·d. The third event occurred from February 20 to March 8. The SLO periods were doublepeaked at 1.5-4.3 and 6.1-8.2 d with the power densities of 0.08-0.11 and 0.02-0.08 m 2 ·d, respectively. The SLOs propagated along the coast from Zhejiang in north to Guangdong in south. The phase speeds ranged about 9-29 m/s from Kanmen to Pingtan, 5-11 m/s from Xiamen to Huizhou and 11-22 m/s from Huizhou to Shuidong. The dispersion relation of the SLOs shows their nature of coastal-trapped wave.

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“…For example, hurricane-or cyclonegenerated coastally trapped waves occurring over a sloping shelf often have a meter scale (Yankovsky, 2008;Eliot and Pattiaratchi, 2010). Edge waves, occurring over super-inertial timescales, are amplified towards the coastline due to refraction and reflection of long ocean waves over the sloping topography (Huthnance, 1975;Yankovsky, 2008).…”

Section: Introductionmentioning

confidence: 99%

A survey of strong high-frequency sea level oscillations along the US East Coast between 2006 and 2011

Pasquet

Vilibić

Šepić

2013

Nat. Hazards Earth Syst. Sci.

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A systematic survey of high-frequency sea level oscillations (<6 h) measured between 2006 and 2011 along the US East Coast is performed. Raw 1-min resolution sea level data is used. After performing a data quality check, the nine most intense events, with maximum recorded wave heights ranging from 40 to 100 cm, are identified. Focusing on three of these events enables us to recognize two different generation mechanisms: (i) topographically-trapped edge waves which are found to be a significant contributor to the strongest observed oscillations, and (ii) standing waves, which occur over enclosed shallow waters and may result in significant wave heights of up to 100 cm. A reproduction of the observed oscillations is a part of a future work, which will include an assessment of a generating force in the atmosphere, allowing for a better prevention of potential flooding along the US East Coast

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Remote forcing of water levels by tropical cyclones in southwest Australia

Cited by 42 publications

References 39 publications

Origin of the Hurricane Ike forerunner surge

Origin of the Hurricane Ike forerunner surge

Wavelet analysis of coastal-trapped waves along the China coast generated by winter storms in 2008

A survey of strong high-frequency sea level oscillations along the US East Coast between 2006 and 2011

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