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Çѱ¹¼öÀÚ¿øÇÐȸ / v.41, no.6, 2008³â, pp.559-564
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( A Derivation of a Hydrograph by Using Smoothed Dimensionless Unit Kernel Function ) |
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| A practical method is derived for determining the unit hydrograph and S-curve from complex storm events by using a smoothed unit kernel approach. The using a unit kernel yields more convenient way of constructing a unit hydrograph and its S-curve than a conventional method. However, with use of real data, the unit kernel oscillates and is unstable so that a unit hydrograph and S-curve cannot easily obtained. The use of non-parametric ridge regression with a Laplacian matrix is suggested for deriving an event averaged unit kernel which reduces the computational efforts when dealing with the Nash instantaneous unit hydrograph as a basis of the kernel. A method changing the unit hydrograph duration is also presented. The procedure shown in this work will play an efficient role when any unit hydrograph works is involved. |
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| Ű¿öµå |
| ´ÜÀ§µµ;´ÜÀ§ÇÙÇÔ¼ö;´ÉÇüȸ±ÍºÐ¼®;Nash ¸ðÇü;Unit hydrograph;unit kernel;ridge regression;Nash model; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.41, no.6, 2008³â, pp.559-564
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200819160171500)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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