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Theoretical calculations of frequency response of tide gage stilling well are made, and compared with recorded tsunami heights and periods; nonlinear interaction between orifice used as filter on stilling well and Stokes' second-order waves is calculated numerically for steady-state case, and is shown to result in small errors in tide gage reading; possibility of transient case resulting in spurious seiche or "surf beat" records from groups of higher waves is suggested.
Theoretical calculations of frequency response of tide gage stilling well are made, and compared with recorded tsunami heights and periods; nonlinear interaction between orifice used as filter on stilling well and Stokes' second-order waves is calculated numerically for steady-state case, and is shown to result in small errors in tide gage reading; possibility of transient case resulting in spurious seiche or "surf beat" records from groups of higher waves is suggested.
Tide gage frequency response
ASCE -- Proc (J Waterways Harbors Div)
Cross, R.H. (author)
1968
14 pages
Article (Journal)
English
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