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Precautions on the Establishment of Annual Extreme Water Level Series for Approved Warning Water Level
Pages: 77-80
Year: Issue:  6
Journal: Ocean Development and Management

Abstract: Accurate warning water level can effectively reduce disaster losses in storm surge haz-ards.In order to clarify the establishment of annual extreme water level series for approved warn-ing water level,this paper classified the actual data of coastal tidal stations based on approved warning water level in Shandong Province and used correlation analysis,numerical simulation and other methods to supplement the different classification actual data which used to compute annual extreme water level series,respectively.Extreme-value type I method of the series was used to cal-culate High Tide Level in the return period.The order of the method used to establish the annual extreme water level sequence in the monitoring of the tide level is that the measured data are preferentially measured with the measured data,then is the correlation if there is no measured da-ta,and the last is the use of numerical simulation and reconciliation analysis if there is no correla-tion.It is worth noting that in the use of the correlation between the establishment of the annual extreme water level sequence,the calculation of the high tide level of the reproduction must meet the same tidal nature,similar to the storm surge process and other conditions;the use of numerical simulation to establish the annual extreme water level sequence,should be compared with its annual maximum value of astronomical tide.
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