蔡丁貴2006-07-252018-07-092006-07-252018-07-092001http://ntur.lib.ntu.edu.tw//handle/246246/9882本研究之主要目的在建立感潮河段水位與流量之關係。感潮河段之水位由於嚴重受河口潮汐等水位變化之影響，其流況水理極為複雜，使得河段內各水位站之水位－流量關係無法明確建立。有鑑於感潮河段之水位仍大致依河口水位變化之時序呈現規律性之近似正弦波變化，倘吾人可將該水位站受河口水位影響部份予以濾除，則可建立感潮河段水位與流量之單一函數關係。屆時，吾人袛要知道該水位站水位、時間（河口水位變化之時序）、季 節（或月份）即能推估出相當精確度（或可能誤差百分比為已知）之河道流量，對河道流量作較確之掌握，提供進一步之分 析利用。 本研究（第一年）為對淡水河感潮河段水理系列研究之先期研究項目，研究成果不僅將提供後續建立河川（淡水河）中高水位全洪程流量量測系統，亦可作為一般河川水理演算及相關研究之重要參考依據。The purpose of this study mainly aims at the establishment of the stage-discharge relationship in a tidal reach. As the flow condition is complicate and the stage of which is seriously influenced by the tide at downstream, the stage-discharge relationship in a tidal reach is ambiguous and offers no further information for applications. Since the stage in a tidal reach still varies regularly with time in response to the tidal effects and its variation remains in form of an approximately sinusoidal function, the stage-discharge relationship at a staging station can be established by filtering out its downstream tidal effects. Therefore, one is able to estimate the discharge from stage at stations in a tidal-effect-reach, as long as the stage variation downstream at the river mouth and its time sequence are known. This stage- discharge information can be applied to better understanding of flow situations in a tidal reach, and further more be applied to many other applications of interested. This study, in the first year, is a prerequisite to a series of researches in a tidal-effected river to be conducted urgently in the near future. The stage-discharge relationship of a tidal reach is significant to many studies and can be applied to applications such as the estimation of the discharge during a flood, real time flood forecasting and so on.application/pdf210446 bytesapplication/pdfzh-TW國立臺灣大學水工試驗所設計洪水洪水演算不規則性率定曲線感潮河段Design floodFlood routingIrregularityRating curveTidal reachreporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/9882/1/892211E002146.pdf