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Çѱ¹¼öÀÚ¿øÇÐȸ / v.42, no.1, 2009³â, pp.61-73
Grey ¸ðÇüÀ» ÀÌ¿ëÇÑ ´Ù¸ñÀû´ïÀÇ À¯ÀÔ È«¼ö·®°ú ÇÏ·ù ÇÏõ È«¼ö·® ½Ç½Ã°£ ¿¹Ãø
( Real-Time Forecasting of Flood Discharges Upstream and Downstream of a Multipurpose Dam Using Grey Models )
°­¹Î±¸;;°í´ö±¸; ¹Ì·¡ÀÚ¿ø¿¬±¸¿ø;¹Ì±¹ Àϸ®³ëÀÌÁî´ëÇб³ Åä¸ñȯ°æ°øÇаú;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø, ¹°Á¤º¸È­¿¬±¸¼Ò;
 
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º» ¿¬±¸¿¡¼­´Â ´Ù¸ñÀû´ïÀÇ È¿À²ÀûÀÎ È«¼ö°ü¸®¿Í Á¶±â È«¼ö °æº¸½Ã½ºÅÛÀÇ Á¤È®¼ºÀ» Çâ»ó½Ã۱â À§ÇÏ¿© µÎ °¡Áö ¸ðÇüÀÌ Á¦¾ÈµÇ¾ú´Ù. µÎ ¸ðÇüÀº »ó·ù À¯ÀÔ È«¼ö·®°ú ÇÏ·ù ÇÏõÀÇ È«¼ö·®À» ½Ç½Ã°£À¸·Î ¿¹ÃøÇÒ ¼ö ÀÖ´Â ´É·ÂÀ» °¢°¢ °¡Áö°í ÀÖ´Ù. ÀÌµé ¸ðÇüÀº ³²°­´ï »ó·ù¿Í ÇÏ·ù È«¼ö·®ÀÇ ½ÇÃøÄ¡¿Í ¸ðÀÇÄ¡¸¦ ºñ±³ÇÏ¿© º¸Á¤ ¹× °ËÁ¤µÇ¾úÀ¸¸ç, ½ÇÁ¦ »óȲ¿¡¼­ ¸ðÇüÀÇ È«¼ö·® ¿¹Ãø ´É·ÂÀÌ Æò°¡µÇ¾ú´Ù. »ó·ù À¯ÀÔ·® ¿¹Ãø ¸ðÇüÀº Grey ½Ã½ºÅÛ À̷п¡ ±Ù°ÅÇÏ¿´À¸¸ç, ¸ðÇüÀÇ ¿¹Ãø´É·ÂÀ» °í·ÁÇÏ¿© 6Â÷ ¸ðÇüÀ» ¼±Á¤ÇÏ¿´´Ù. ¼­·Î ´Ù¸¥ ÀÚ·á ¼¼Æ®¸¦ »ç¿ëÇÏ¿© º¸Á¤µÈ ¸ðÇüµéÀ» »ç¿ëÇÏ¿© ¿¹ÃøÇÑ È«¼ö·®°ú ½ÇÃøÀڷḦ ºñ±³ÇÏ¿© °¡Àå ÀûÁ¤ÇÑ ¸ðÇüÀÌ ¼±Á¤µÇ¾úÀ¸¸ç, °ËÁ¤ °á°ú¸¦ °ËÅäÇÑ °á°ú ¼±Á¤µÈ ¸ðÇüÀÌ ¾çÈ£ÇÑ ¿¹Ãø°á°ú¸¦ Á¦½ÃÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ´ï ÇÏ·ù ÇÏõ È«¼ö·® ¿¹Ãø ¸ðÇüÀº Grey ¸ðÇü°ú ¼öÁ¤ Muskingum È«¼ö ÃßÀû ¸ðÇüÀ» º´ÇÕÇÏ¿© ±¸¼ºµÇ¾úÀ¸¸ç, º¸Á¤ ¹× °ËÁ¤À» ÅëÇØ¼­ ¸ðÇüÀÇ ¿¹Ãø ´É·ÂÀÌ Æò°¡µÇ¾ú´Ù. Á¦¾ÈµÈ ¸ðÇüµéÀ» ½Ç½Ã°£ È«¼ö·® ¿¹Ãø¿¡ Àû¿ëÇÑ °á°ú, ºñ±³Àû ¾çÈ£ÇÑ ¿¹Ãø°á°ú¸¦ ³ªÅ¸³Â´Ù. ¶ÇÇÑ, ¸ðÇüÀÇ Á¤È®µµ¸¦ Çâ»ó½Ã۱â À§Çؼ­´Â À¯Ã⠴ܰ踦 °í·ÁÇÑ ¸ðÇüÀÇ º¸Á¤ ¹× Àû¿ëÀÌ ÇÊ¿äÇÏ´Ù´Â °ÍÀÌ ¹àÇôÁ³´Ù.
To efficiently carry out the flood management of a multipurpose dam, two flood forecasting models are developed, each of which has the capabilities of forecasting upstream inflows and flood discharges downstream of a dam, respectively. The models are calibrated, validated, and evaluated by comparison of the observed and the runoff forecasts upstream and downstream of Namgang Dam. The upstream inflow forecasting model is based on the Grey system theory and employs the sixth order differential equation. By comparing the inflows forecasted by the models calibrated using different data sets with the observed in validation, the most appropriate model is determined. To forecast flood discharges downstream of a dam, a Grey model is integrated with a modified Muskingum flow routing model. A comparison of the observed and the forecasted values in validation reveals that the model can provide good forecasts for the dam's flood management. The applications of the two models to forecasting floods in real situations show that they provide reasonable results. In addition, it is revealed that to enhance the prediction accuracy, the models are necessary to be calibrated and applied considering runoff stages; the rising, peak, and falling stages.
 
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½Ç½Ã°£ È«¼ö·® ¿¹Ãø;Grey ¸ðÇü;¼öÁ¤ Muskingum È«¼ö ÃßÀû ¸ðÇü;³²°­´ï;Real-time flood forecasting;Grey model;Modified Muskingum flow routing model;Namgang dam;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.42, no.1, 2009³â, pp.61-73
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200904751484426)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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