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Çѱ¹¼öÀÚ¿øÇÐȸ / v.18, no.1, 1985³â, pp.75-83
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ARMA(1, 1) ´Ù°èÀý¸ðÇü¿¡ ÀÇÇÑ ÇÏõÀ¯·®ÀÇ ¸ðÀǹ߻ý
( A Synthetic Generation of Streamflows by ARMA(1, 1) Multiseason Model ) |
| À±¿ë³²;Àü½Ã¿µ; °í·Á´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;ÇѾç´ëÇб³ °ø°ú´ëÇÐ ´ëÇпø ¹Ú»çÇÐÀ§ °úÁ¤;
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| Ãʱ⿬±¸´Ü°è¿¡ ÀÖ´Â ARMA(1, 1) ´Ù°èÀý¸ðÇü¿¡ ÀÇÇØ °èÀýÀ¯·®À» ¹ß»ý½Ã۱â À§ÇÑ ¸ðÇüÀÇ º¯¼ö°áÁ¤¹æ¹ý°ú À¯·®¹ß»ý ¹× ¹ß»ýÀ¯·®°è¿ÀÇ Åë°èÇÐÀûºÐ¼®À» ½Ç½ÃÇÏ¿´À¸¸ç Ÿ¸ðÇü°úÀÇ ºñ±³¸¦ À§ÇØ Thomas-Fiering ¸ðÇü, Matalas AR(1) ´Ù°èÀý¸ðÇüµµ »ç¿ëÇÏ¿´´Ù. ´Ù°èÀý¸ðÇü¿¡ ÀÇÇØ ¹ß»ý½ÃŲ °èÀýÀ¯·®À» ¿¬µµº°·Î ÇÕ»êÇÏ¿© ¾òÀº ¿¬À¯·®°è¿ÀÇ Åë°èÇÐÀû Ư¼ºÄ¡¸¦ ³â¸ðÀǹ߻ý¸ðÇü¿¡ ÀÇÇØ ¹ß»ý½ÃŲ ³âÀ¯·®°è¿ÀÇ Åë°èƯ¼ºÄ¡¿Í ºñ±³ÇÔÀ¸·Î½á ARMA(1, 1) ´Ù°èÀý¸ðÇü¿¡ ÀÇÇØ °èÀý ¹× ³âÀ¯·®ÀÚ·á°è¿À» ÇѲ¨¹ø¿¡ ¸ðÀǹ߻ý½Ãų ¼ö ÀÖ´Â °¡´É¼ºÀ» Æò°¡ÇÏ¿´´Ù. |
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| The applicability of ARMA(1, 1) multiseason model, which is in the beginning stage of active researches in the field of synthetic generation is evaluated with the streamflow data at the Nakdong stage gauging station on the main stem of the Nakdong River. The method of parameter estimation for the modelis reviewed and the statistical analysis of the generated seasonal streamflows such as corrlogram analysis and the computation of moments is made. The results obtained by ARMA(1, 1) multiseason model are compared with the historical streamflow data and also with those by two other multiseason models, namely, Thomas-Fiering model and Matalas AR(1) multiseason model. The seasonal streamflows grnerated by three multiseason models were annually summed up to form respective annual flow series whose statistics were compared with those of the annual flow series generated by three annual models, namely, AR(1), Matalas AR(1), and ARMA(1, 1) annual models. The possibility of ARMA(1, 1) multiseason model for the simultaneous generation of seasonal and annual streamflows is also evaluated. |
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.18, no.1, 1985³â, pp.75-83
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO198511920091207)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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