| 11. | Triangulation and navigation bases were established along with tide gauges and then topographic and hydrographic surveys were begun.
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| 12. | Recent rise in sea levels has been monitored by tide gauges and satellite altimetry ( e . g.
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| 13. | One study showed no acceleration in sea level rise in US tide gauge records during the 20th century.
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| 14. | A tide gauge in Ocracoke Island reported a tide of 1.5 feet ( 0.45 meter ) above normal.
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| 15. | Nevertheless, these observations corroborate the trend of sea level measurements made over the last century using tide gauges.
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| 16. | The Fort Denison photographs below show float activated tide gauge instruments in a cabinet and the system's stilling well.
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| 17. | Mean sea level was measured at 26 tide gauges : 21 in the United States and 5 in Canada.
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| 18. | The PCO has four tide gauges situated around the south west coast, collecting real time tidal and surge data.
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| 19. | What was noted on tide gauges around the world are considered to be the effect of the atmospheric pressure wave.
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| 20. | This disaster led to the development of the UK National Tide Gauge Network and the UK Storm Tide Forecasting System.
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