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Çѱ¹¼öÀÚ¿øÇÐȸ / v.45, no.1, 2012³â, pp.91-99
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( Extension Techniques of 8 Day Interval Recorded Stream-flow Data to Daily One )
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In this study, it was proposed that extension techniques of 8 day interval recorded stream-flow data which has been produced at the mouth of unit watersheds for TMDLs to daily one. The concept of this method was that the missing data at partial recording station was filled by using the daily data at a nearby, hydrologically similar streamgaging station. First, same day stream-flow was extracted from the daily stream-flow. Then, the extension equation was developed based on the sample data when the same day stream-flow from daily data and the partially recorded stream-flow was deeply related each other. The missing data was interpolated or extrapolated by the equation. Especially the maintenance of variance extension (MOVE) technique was used to derive the equation and was validated. Finally the 8-day interval recorded stream-flow at the mouth of unit watersheds in Han River Basin for TMDLs was extended to continuously daily data by using the method proposed in this study. And the low flow at each unit watershed was evaluated according to the flow-duration curve.
 
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.45, no.1, 2012³â, pp.91-99
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201208040010031)
¾ð¾î : Çѱ¹¾î
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