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Orthogonal stack of global tide gauge sea level dataYearly and monthly tide gauge sea level data from around the globe are fitted to numerically generated equilibrium tidal data to search for the 18.6 year lunar tide and 14 month pole tide. Both tides are clearly evident in the results, and their amplitudes and phases are found to be consistent with a global equilibrium response. Global, monthly sea level data from outside the Baltic sea and Gulf of Bothnia are fitted to global atmospheric pressure data to study the response of the ocean to pressure fluctuations. The response is found to be inverted barometer at periods greater than two months. Global averages of tide gauge data, after correcting for the effects of post glacial rebound on individual station records, reveal an increase in sea level over the last 80 years of between 1.1 mm/yr and 1.9 mm/yr.
Trupin, A. (NASA Goddard Space Flight Center Greenbelt, MD, United States) Wahr, J. (Colorado, University; Cooperative Institute for Research in Environmental Sciences, Boulder, United States)
August 15, 2013
January 1, 1990
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