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Çѱ¹¼öÀÚ¿øÇÐȸ / v.30, no.4, 1997³â, pp.411-420
³«µ¿°­¿¡¼­ÀÇ ½Å·ÚµµÇؼ®¿¡ ÀÇÇÑ ¼öÁú¿¹º¸½Ã½ºÅÛÀÇ °³¹ß
( Water Quality Forecasting System by Reliability Analysis in the Nakdong River )
ÇѰǿ¬;±è»óÈ£; °æºÏ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;°æºÏ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
 
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³«µ¿°­ À¯¿ª¿¡¼­ ¼öÁú¿¹º¸½Ã½ºÅÛÀÇ °³¹ßÀ» À§Çؼ­ ½Å·ÚµµÇؼ® ±â¹ý¿¡ ±âÃÊÇÑ QUAL2E-AFOSM¸ðÇüÀ» °³¹ßÇÏ¿´´Ù. ¿Ö°ü¡­¹°±Ý ±¸°£¿¡ ´ëÇØ ¼ö¸®ÇÐÀû ºÎµî·ù ÇØ¼®À» ½Ç½ÃÇÏ¿´°í, ÃÖÀûÀÇ ¹ÝÀÀ°è¼ö ÃßÁ¤À» À§ÇØ BFGS ±â¹ýÀ» »ç¿ëÇÏ¿© ÃÖÀûÈ­ ÇØ¼®À» ½Ç½ÃÇÏ¿´À¸¸ç, À̸¦ ±âÃÊ·Î ÇÏ¿© ¸ðÇüÀÇ º¸Á¤°ú °ËÁõÀ» ½Ç½ÃÇÏ¿´´Ù. Ãß°èÇÐÀû ÇØ¼®À» À§ÇÏ¿© AFSOM ±â¹ýÀ» Àû¿ëÇÑ ½Å·Úµµ ÇØ¼®À» ¼öÇàÇÏ¿´´Ù. »ó·ù´Ü°ú ÁÖ¿ä Áö·ù¿¡¼­ÀÇ ¼öÁú, À¯·®°ú ¹ÝÀÀ°è¼ö¿¡ ´ëÇÑ º¯µ¿¼ºÀ» °í·ÁÇÏ¿´´Ù. ¼öÁú ÃøÁ¤ÀڷḦ ±âÃÊ·Î ÇÏ¿© ³«µ¿°­ÀÇ ¼ö°³ ÁöÁ¡¿¡ ´ëÇÑ ±âÁØ ¼öÁúÀ» ÃʰúÇÒ È®·üÀ» AFOSM ±â¹ýÀ» ÀÌ¿ëÇÏ¿© »êÁ¤ÇÏ¿´´Ù. º» QUAL2E-AFOSM ¸ðÇü¿¡ ÀÇÇÑ ÇØ¼®°á°ú´Â Monte-Carlo ±â¹ýÀÇ °á°ú¿Í ÀÏÄ¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
QUAL2E-AFOSM model is developed to forecast the water quality by reliability analysis in the Nakdong River. A varied-flow analysis is performed for the reach of Waegwan to Mulgeum to estimate hydraulic parameters. An optimization technique by BFGS method is applied to determine the optimum reaction parameters and calibrations and verifications are performed based on these parameters. A reliability analysis for the stochastic analysis in a river is studied using the AFOSM method. The variations of water quality and discharge in the headwater, tributaries, and reaction coefficients are considered. Risks of violating existing water quality standards at several loactions in the Nakdong River are computed by using the QUAL2E-AFOSM method. The computed results computed by QUAL2E-AFOSM model agree with those of the Monte-Carlo method in QUAL2EU model.
 
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.30, no.4, 1997³â, pp.411-420
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199711920100372)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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