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Tide gauges measure tectonic movements
Energy, 1993Abstract Glacial unloading of the crust, subduction, volcanoes, faults and folds, compaction of deltas, pumping of fluids and hydrostatic weighting cause changes in land levels that mask changes by modern eustatic rise of sea level as shown by tide-gauge records.
K.O. Emery, D.G. Aubrey
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Tide gauge monitoring using GPS
2008In this work we have studied accuracy of GPS for tide gauge stability monitoring as well as possibilities for observing the absolute sea level rise of the Baltic Sea with GPS and tide gauge time series. Our determination give the average sea level rise for the long, up to 120 years, time series 1.9 + 1.0 mm/year, and when corrected for the geoid rise ...
Maaria Tervo +2 more
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Hydrodynamic Studies Of Tide Gauges
Journal of Hydraulic Research, 1969When tide gauges of the float and well type are situated such that there is a flow past them, an error is introduced into their readings as a result of the flow. The hydrodynamics of the flow are considered and a relationship is developed for the well orifice pressure coefficient Cp , in terms of a Reynolds number, Froude number and two geometric ...
A. Roy Halliwell, John G. Perry
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PHAG - A Microprocessor Based Tide Gauge
OCEANS 1984, 1984The design of a low power portable hydrographic water level gauge system (PHAG) is constrained by enviromental, operational, and measurement requirements. The data acquisition electronics provide optimum use of available power at temperatures ranging below 0 \deg C.
M. Donegan, B. White
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1997
Abstract : This work's main goal is development of an expendable, small, easily-deployed, long lifetime, and low cost tide gauge that will increase water level data collection capabilities in littoral regions for scientific purposes (e.g. determination of regional tidal model forcing inputs and model validations) and for Naval tactical oceanographic ...
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Abstract : This work's main goal is development of an expendable, small, easily-deployed, long lifetime, and low cost tide gauge that will increase water level data collection capabilities in littoral regions for scientific purposes (e.g. determination of regional tidal model forcing inputs and model validations) and for Naval tactical oceanographic ...
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Ocean signals in tide gauge records
Journal of Geophysical Research: Solid Earth, 1986Tide gauges are designed to measure changes in water level relative to land. However, vertical motions of the earth's crust manifest themselves as apparent water level changes in tide gauge records. These crustally induced changes are often small in amplitude relative to the wide range of oceanic processes which affect water level in coastal regions ...
Dudley B. Chelton, David B. Enfield
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Significance of Tide-Gauge Records
1991In the previous chapter tide-gauge records from different regions of the world were investigated, with particular attention paid to those in regions having many tide gauges with acceptable records in terms of time spans and systematic trends. Both worldwide and regional examinations showed the trends of change in mean annual levels to be too variable ...
K. O. Emery, David G. Aubrey
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A Portable Recording Tide Gauge
Australian Journal of Marine and Freshwater Research, 1956The gauge is pressure-operated. A copper bellows is connected by plastic tubing to the water, and both bellows and tube are filled with water. Movements of the free end of the bellows are transmitted through a lever system to a marker recording on a revolving drum.
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