| Summary: | 碩士 === 逢甲大學 === 土木及水利工程所 === 90 === Abstract
Stream flow records have been a basic required data for hydraulic structure design and water resource management. But in reality, many field sites lack of record data, therefore, unknown flow data estimation becomes an important work in the future.
Rainfall is the basic source for stream flow, so by using regression analysis in this study, the main purpose is to establish daily precipitation and daily stream flow discharge time series relationship formula, and using regional variable theory of Kriging Estimation Method to establish spatial structure relationship formula for each flow station. Therefore by taking time and spatial characters for establishing this time series estimating method can make great deal of progress in estimating unknown flow station data statuses.
In this study, we use Wu-Xi River Basin as research site. Use Nai-Pei Bridge, Nan-Kang Bridge, Kuan-In Bridge as unknown observe station and the rest known station for discharge estimation verifying work. Analysis result says that this method is better than traditional model. So it can be taken for future daily discharge time series estimation model.
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