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Çѱ¹¼öÀÚ¿øÇÐȸ / v.22, no.3, 1989³â, pp.331-339
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Multiplicative ARIMA ¸ðÇü¿¡ ÀÇÇÑ ¿ùÀ¯·®ÀÇ Ãß°èÇÐÀû ¸ðÀÇ ¿¹Ãø
( Stochastic Forecasting of Monthly River Flwos by Multiplicative ARIMA Model ) |
| ¹Ú¹«Á¾;À±¿ë³²; °í·Á´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;°í·Á´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
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| Ãß°èÇÐÀû ¸ðÇü ÁßÀÇ ÇϳªÀÎ Multiplicative ARIMA ¸ðÇüÀ» »ç¿ëÇÏ¿© Áֱ⼺°ú °æÇ⼺À» °¡Áö´Â ¿ùÀ¯·®°è¿À» ¿¹ÃøÇÏ¿´À¸¸ç ±× ¸ðÇüÀÇ ÀûÇÕ¼ºÀº ³«µ¿° À¯¿ªÀÇ Áøµ¿ ¼öÀ§ °üÃø ÁöÁ¡¿¡¼ÀÇ 23³â°£ÀÇ ¿ù À¯·®ÀڷḦ »ç¿ëÇÏ¿© °ËÁ¤ÇÏ¿´´Ù. ÃÖÁ¾ÀûÀ¸·Î »êÁ¤µÈ ARIMA (2,0,0)$ imes$$(0,1,1)_{12}$ ¸ðÇüÀÇ º¯¼ö´Â 21³â°£ÀÇ ÀڷḦ »ç¿ëÇÏ¿© »êÁ¤ÇÏ¿´À¸¸ç ³ª¸ÓÁö 2³â°£ÀÇ ¿ù À¯·®ÀÚ·á´Â ¿¹ÃøÄ¡¿Í °üÃøÄ¡¸¦ ºñ±³Çϴµ¥ »ç¿ëÇÏ¿´´Ù. º» ¸ðÇü¿¡ ÀÇÇÑ ¿¡ÃøÄ¡¿Í °üÃøÄ¡ÀÇ ºñ±³°á°ú Multiplicative ARIMA ¸ðÇüÀº Áøµ¿ÁöÁ¡ÀÇ ¿ùÀ¯·® °è¿ÀÇ ¿¹Ãø¿¡ ÀûÇÕÇÔÀÌ ÆÇ¸íµÇ¾ú´Ù. |
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| The monthly flows with periodicity and trend were forecasted by multiplicative ARIMA model and then the applicability of the model was tested based on 23 years of the historical monthly flow data at Jindong river stage gauging station in the Nakdong River Basin. The parameter estimation was made with 21 years of data and the remaining two years of monthly data were used to compare the forecasted flows by ARIMA (2,0,0)$ imes$$(0,1,1)_{12}$ with the observed. The results of forecast showed a good agreement with the observed, implying the applicability of multiplicative ARIMA model for forecasting monthly river flows at the Jindong site. |
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.22, no.3, 1989³â, pp.331-339
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO198911920092844)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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