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Çѱ¹¼öÀÚ¿øÇÐȸ / v.43, no.1, 2010³â, pp.51-65
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( Flood Forecasting and Warning System using Real-Time Hydrologic Observed Data from the Jungnang Stream Basin ) |
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º» ¿¬±¸¿¡¼´Â µµ´Þ½Ã°£ÀÌ ÂªÀº Áß¼ÒÇÏõÀ¯¿ª¿¡¼ µ¹¹ßÈ«¼ö ¹ß»ý½Ã °¿ì¿¡ µû¸¥ ÇÏõÀÇ ¼öÀ§º¯È¸¦ ½Å¼ÓÇÏ°í °£ÆíÇÏ°Ô ¿¹ÃøÇÏ´Â È«¼ö¿¹°æº¸ ¸ðÇüÀ» Á¦½ÃÇÏ°í ±× ÀûÁ¤¼ºÀ» Áß¶ûõ À¯¿ª¿¡ ´ëÇØ¼ °ËÅäÇÏ¿´´Ù. À̸¦ À§ÇÏ¿© ¸ÕÀú, Á¦¹æ¾ÈÀüµµ Æò°¡¿Í ħ¼öÀ§Ç豸¿ª Á¶»ç¸¦ ÅëÇØ È«¼ö¹æ¾î¸ñÇ¥ÁöÁ¡À¸·Î ¼±Á¤ÇÏ¿´´Ù. °¿ì·® ¹× °üÃøÁöÁ¡¼öÀ§¿Í È«¼ö¹æ¾î ¸ñÇ¥ÁöÁ¡ ¼öÀ§¿ÍÀÇ »ó°ü¼º ºÐ¼®À» ÇÏ¿´À¸¸ç, À̷κÎÅÍ È«¼ö¹æ¾î¸ñÇ¥(¿¹º¸ÁöÁ¡)ÁöÁ¡ÀÇ ¼öÀ§º¯È¸¦ ¿¹ÃøÇÒ ¼ö Àִ ȸ±Í¸ðÇüÀ» »êÁ¤ÇÏ¿´´Ù. ÀÌ ¶§ ±âÃÊÀÚ·á·Î¼ÀÇ ½ÇÁ¦°¿ì Á¶°Ç¿¡ µû¸¥ ½ÇÃø ¼öÀ§ÀÚ·á´Â ±× ¹üÀ§¿Í Á¶°ÇÀÇ ¼ö°¡ ³Ê¹« ÀÛÀ½À¸·Î, À̸¦ ´ë½ÅÇÏ¿© ´Ù¾çÇÑ °¿ì½Ã³ª¸®¿Àº° À¯ÃâºÐ¼®À» ÅëÇÏ¿© È«¼öÀ§µéÀ» »êÁ¤Çϰí À̸¦ »ó°ü¼º ºÐ¼®ÀÇ ¸ðÁý´Ü ÀÚ·á·Î »ç¿ëÇÏ¿´´Ù. »êÁ¤µÈ ȸ±Í¸ðÇüÀ¸·ÎºÎÅÍ ÀûÁ¤ ¼±Ç࿹º¸½Ã°£¿¡ ´ëÇÑ ¼öÀ§¸¦ »êÁ¤ÇÏ°í ±â»óº¸Á¤°è¼ö¸¦ °í·ÁÇÏ¿© ¿¹Ãø¼öÀ§¸¦ º¸Á¤ °áÁ¤ÇÏ´Â ¹æ¾ÈÀ» Á¦½ÃÇÏ¿´´Ù. ¿¹Ãø¼öÀ§°¡ ÁÖÀ§º¸¼öÀ§(Flood watching level; °èȹȫ¼ö·®ÀÇ 50 %ÀÇ ¼öÀ§)¸¦ ÃʰúÇÏ´Â °æ¿ì¿¡ ¿¹°æº¸¸¦ ¼öÇàÇÒ ¼ö ÀÖ´Â ½Ã½ºÅÛÀ» ±¸¼ºÇÏ¿´À¸¸ç, ½ÇÁ¦ È£¿ì»çÇ׿¡ ´ëÇÏ¿© ±× Àû¿ë¼ºÀ» °ËÅäÇÏ¿´´Ù. |
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We suggest a simple and practical flood forecasting and warning system, which can predict change in the water level of a river in a small to medium-size watershed where flash flooding occurs in a short time. We first choose the flood defense target points, through evaluation of the flood risk of dike overflow and lowland inundation. Using data on rainfall, and on the water levels at the observed and prediction points, we investigate the interrelations and derive a regression formula from which we can predict the flood level at the target points. We calculate flood water levels through a calibrated flood simulation model for various rainfall scenarios, to overcome the shortage of real water stage data, and these results as basic population data are used to derive a regression formula. The values calculated from the regression formula are modified by the weather condition factor, and the system can finally predict the flood stages at the target points for every leading time. We also investigate the applicability of the prediction procedure for real flood events of the Jungnang Stream basin, and find the forecasting values to have close agreement with the surveyed data. We therefore expect that this suggested warning scheme could contribute usefully to the setting up of a flood forecasting and warning system for a small to medium-size river basin. |
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Ű¿öµå |
È«¼ö¿¹°æº¸;Áß¶ûõ;½Ç½Ã°£ ¼ö¹®°üÃøÀÚ·á;±â»óº¸Á¤°è¼ö;flood forecasting and warning system;Jungnang Stream;real time hydrologic observed data;meteorological correction factor; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.43, no.1, 2010³â, pp.51-65
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201005364710394)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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