Sea-Level Science: Understanding Tides, Surges, Tsunamis and Mean Sea-Level Changes
Language: English
Pages: 407
ISBN: 1107028191
Format: PDF / Kindle (mobi) / ePub
Understanding sea-level processes, such as ocean tides, storm surges, tsunamis, El Niño and rises caused by climate change, is key to planning effective coastal defence. Building on David Pugh's classic book Tides, Surges and Mean Sea-Level, this substantially expanded, full-colour book now incorporates major recent technological advances in the areas of satellite altimetry and other geodetic techniques (particularly GPS), tsunami science, measurement of mean sea level and analyses of extreme sea levels. The authors discuss how each surveying and measuring technique complements others in providing an understanding of present-day sea-level change and more reliable forecasts of future changes. Giving the how and the why of sea-level change on timescales from hours to centuries, this authoritative and exciting book is ideal for graduate students and researchers in oceanography, marine engineering, geodesy, marine geology, marine biology and climatology. It will also be of key interest to coastal engineers and governmental policy-makers.
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west coast of the island but 32 minutes at Grand Gaube on the north coast. At Rodrigues, 25 and 18 minutes were found at Port Mathurin and Passe Demi located offshore of the north and west coasts, respectively [80]. Figure 7.12 shows a sea-level spectrum for Port Mathurin indicating a clear peak at 25 minutes which persists through the year. Seiche amplitudes there have a relationship to the tide, suggesting dynamical effects in the shallow channel to the open sea. For many Indian Ocean study
Hydrographische Zeitschrift, 29, 163–213, doi:10.1007/BF02226659. 32. Amin, M. 1982. On analysis and prediction of tides on the west coast of Great Britain. Geophysical Journal of the Royal Astronomical Society, 68, 57–78, doi:10.1111/ j.1365-246X.1982.tb06962.x. 33. Rossiter, J. R. 1959. Research on methods of forecasting storm surges on the east and south coasts of Great Britain. Quarterly Journal of the Royal Meteorological Society, 365, 262–277, doi:10.1002/ qj.49708536508. 34. Flather, R.
vertical ocean mixing. However, the link is very improbable [16, 18] given the transient nature of these tidal extremes, and the reality that tidal ‘extremes’ are in fact only fractionally more extreme than typical spring tides near perigee, as Table 3.4 shows. It should be realised that, although maximum predicted tidal ranges usually result from extremes in the Equilibrium tidal forcing, local ocean responses to these forces may produce local extreme tides at times other than those tabulated.
Monterey time height (ft) time height (ft) hw 00:19 am 6.2 −1:08 −0.5 11:11 pm 5.7 lw 06:23 am −0.3 −0:47 −0.0 05:36 am −0.3 hw 12:59 pm 5.4 −1:08 −0.5 11:51 am 4.9 lw 06:28 pm 1.0 −0:47 −0.0 05:41 pm 1.0 previous day Monterey tides are earlier and slightly smaller than those in San Francisco. Note that the United States publish tide tables in feet. Table 4.12b 30 Mar 02 Standard Port Saint John Secondary adjustment for Burncoat Head Computed tides for
doi:10.1029/ 91JC01059. 30. Foreman, M. G. G. 1977. Manual for Tidal Heights Analysis and Prediction. Canadian Pacific Marine Science Report No. 77–10. See ftp://canuck.seos.uvic. ca/docs/MFTides/heights.pdf. 31. International Hydrographic Organization. 1994. Hydrographic Dictionary. Special Publication No. 32, 5th edition. Monaco: International Hydrographic Organization. 32. Cartwright, D. E. 1985. Tidal prediction and modern time scales. International Hydrographic Review, 62, 127–138. 33.
