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Çѱ¹¼öÀÚ¿øÇÐȸ / v.20, no.4, 1987³â, pp.257-266
ÇÏõÀ¯·®ÀÇ ¸ðÀǹ߻ýÀ» À§ÇÑ Àå±â ¹× ´Ü±â Ãß°èÇÐÀû ¸ðÇüÀÇ ºñ±³¿¬±¸
( A Comparative Study of the Long-Term and Short-Term Stochastic Models for Streamflow Generation )
À̵¿·Ä;À±¿ë³²; °í·Á´ëÇб³ ´ëÇпø;Çѱ¹°Ç¼³±â¼ú¿ø ¿¬±¸ ¿øÀå °ø¹Ú;
 
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Ãß°èÇÐÀû ¸ðÇüµéÀº ¼ö¹®ÀÚ·áÀÇ Áö¼Ó¼º¿¡ µû¶ó Àå±â¸ðÇü°ú ´Ü±â¸ðÇüÀ¸·Î ³ª´­ ¼ö ÀÖ´Ù. º» ¿¬±¸¿¡¼­´Â Àå±â¸ðÇüÀÇ ÇϳªÀÎ FFGN ¸ðÇü¿¡ ÇÊ¿äÇÑ ¸Å°³º¯¼öÀÎ Hurst °è¼ö¸¦ ¿ù ¿¬½ÇÃøÀÚ·á¿¡¼­ ÃßÁ¤ÇÏ°í ¿¬À¯·®À» ¸ðÀǹ߻ýÇÏ¿© ½ÇÃøÀÚ·á¿Í Åë°è¹ßÀû Ư¼ºÄ¡¸¦ ºñ±³ÇϹǷμ­ °¢ ÃßÁ¤Ä¡µéÀÇ Àû¿ë°¡´É¼ºÀ» Æò°¡ÇÏ¿´´Ù. ±×¸®°í ¸ðÀǹ߻õÇÑ ¿¬À¯·®À» ´Ü±â°£À¸·Î ºÐÇØÇÒ ¼ö ÀÖ´Â ºÐÇØ¸ðÇü°ú ÀÌ ¸ðÇüÀÇ ¸Å°³º¯¼öÃßÁ¤ ¹æ¹ýÀ¸·Î ÀÌ¿ë °¡´ÉÇÑ ´Ü±â¸ðÇüÀÎ MatalsahÇüÀ» ³«µ¿°­À¯¿ªÀÇ ÀÌÁöÁ¡(¿Ö°ü, À²µ¿)¿¡ Àû¿ëÇÏ¿© ¿ùÀ¯·®À» ¸ðÀǹ߻ýÇÏ¿´À¸¸ç, ½ÇÃø ¿ùÀ¯·®°ú °¢ ¸ðÇü¿¡ ÀÇÇØ ¹ß»ýÇÑ ¿ùÀ¯·®ÀÇ Åë°èÇÐÀû Ư¼ºÄ¡¸¦ ºñ±³¡¤ºÐ¼®ÇϹǷμ­ ÀÌµé ¸ðÇüµéÀÇ ÇÏõÀ¯·® ¸ðÀǹ߻ý¿¡ Àû¿ë°¡´É¼º°ú ¸ðÇüÀÇ ¼±Åÿ¡ ±âÃʸ¦ ¸¶·ÃÄÚÁ® ÇÏ¿´´Ù.
The existing stochastic models for the data with hydrologic persistence can be classified into two categories; the short-term and long-term models.For the present study, the Hurst coefficients which are the dominant parameter in the Fast Fractional Gaussian Noise(FFGN)model, one of the long-term models. are estimated with historical annual and monthly streamflows. In order to verify the applicability of these estimators the statistical properties of the generated annual streamflows by FFGN model are compared with those of the historical annual streamflows. Then the generated annual streamflows by FFGN model are disaggregated into the monthly streamflows by disaggregation model at two sites, i.e. Waekman and Jindong, in the Nakdong River Basin. On the other hand, the monthly stream flows at the two sites were also generated by the two-site Matalas model which is one of the short-term models. To evaluate the applicability of the above models and to select the better model the statistical properties of the generated monthly streamflows by two models were compared with those of the historicals, respectively.
 
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.20, no.4, 1987³â, pp.257-266
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO198711920092092)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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