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KMID : 1024520000090010019
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Journal of the Environmental Sciences
2000 Volume.9 No. 1 p.19 ~ p.25
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The Evaluation of the Annual Time Series Data for the Mean Sea Level of the West Coast by Regression Model
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Jo Ki-Tai
Park Young-Ki
Lee Jang-Choon
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Abstract
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As the tideland reclamation is done on a large scale these days, construction work is active in the coastal areas. Facilities in the coastal areas must be built with the tide characteristics taken into consideration. Thus the tide characteristics affect the overall reclamation plan. The analysis of the tide data boils down to a harmonic analysis of the hourly changes of long-term tide data and extraction of unharmonic coefficients from the results. Since considerable amount of tide data of the West Coast are available, the existing data can be collected and can be used to obtain the temporal changes of the tide by being fitted into the tide prediction model. The goal of this thesis lies in assessing whether the mean sea level used in the field agrees with the analysis results from the long-term observation data obtained with their homogeneity guaranteed. To achieve this goal, the research was conducted as follows. First the present conditions of the observation stations, the land level standard, and the sea level standard were analyzed to set up a time series model formula for representing them. To secure the homogeneity of the time series, each component was separated. Lastly the mean sea level used in the field was assessed based on the results obtained form the analysis of the time series.
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KEYWORD
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unharmonic coefficients, mean sea level, time series, tide characteristics
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