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Çѱ¹¼öÀÚ¿øÇÐȸ / v.33, no.2, 2000³â, pp.145-157
±Ý°­ ÁßÇÏ·ù¿¡¼­ÀÇ ¼öÁú¸ðÀÇ¿¡ °üÇÑ ¿¬±¸
( A Study on the Water Quality Simulation in the Midstream and Downstream of Geum-River )
½ÅÀç±â;ÀÓâ¼ö; Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¼Ò;û¿î´ëÇб³ Åä¸ñȯ°æ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â ±Ý°­ ´ëû´ïÇÏ·ùÀÇ º»·ù±¸°£¿¡¼­ °¥¼ö½Ã°£¿¡ ´ëÇØ¼­ WASP5¸ðÇü Áß¿¡¼­ ¼öÁú¸ðÀÇ ºÎºÐÀÎ EUTRO5¸ðÇü°ú 1Â÷¿ø Á¤»ó·ù ¼ö¸®¸ðÇüÀÎ HEC-2¸ðÇüÀ» ¿¬°èÇÑ ¼öÁú¸ðÇüÀ» ÀÌ¿ëÇÏ¿© ´ëûÁ¶Á¤Áö´ïÀ¸·ÎºÎÅÍ °­°æ¼öÀ§Ç¥ ÁöÁ¡±îÁö ¼öÁúÀÇ º¯È­¸¦ ¸ðÀÇÇÏ¿´´Ù. ¼öÁú ¹× À¯·®ÀÚ·áÀÇ ¼öÁýÀ» À§ÇÏ¿© ´ëû´ïÀ¸·ÎºÎÅÍ ±Ý°­ÇÏ·ù¿¡ À§Ä¡ÇÑ ÁÖ¿ä ¼öÀ§Ç¥ÁöÁ¡¿¡¼­ 1998³â 12¿ù, 1999³â 1¿ù°ú 3¿ùÀÇ 3ȸ¿¡ °ÉÃÄ °üÃøÇÏ¿´´Ù. ¼öÁú¸ðÀǸðÇüÀº 1999³â 1¿ù ÀڷḦ ÀÌ¿ëÇÏ¿© º¸Á¤µÇ¾îÁö°í, 1998³â 12¿ùÀÚ·á¿Í 1999³â 3¿ùÀڷḦ ÀÌ¿ëÇÏ¿© °ËÁõµÇ¾îÁ³´Ù. ¸ðÇü¿¡ ÀÇÇØ¼­ ¸ðÀÇµÈ ¼öÁúº¯¼öµéÀÇ °Å¸®¿¡ µû¸¥ º¯È­´Â 1999³â 3¿ùÀڷḦ ÀÌ¿ëÇÏ¿© ¸ðÀÇµÈ chlorophyll-a, BOD5, NH3-N, PO4-P¿Í °°Àº ¼öÁúº¯¼ö¸¦ Á¦¿ÜÇϰí´Â °üÃøµÈ ¼öÁúº¯¼ö°ª°ú °ÅÀÇ ÀÏÄ¡ÇÏ¿´´Ù. ¶ÇÇÑ NH3-N°ú PO4-P°¡ Áõ°¡ ȤÀº °¨¼ÒµÇ¾î °©Ãµ°ú ¹ÌȣõÀ¸·ÎºÎÅÍ ±Ý°­º»·ù·Î À¯ÀÔµÈ´Ù°í °¡Á¤ÇÏ´Â °æ¿ì¿¡ ±Ý°­º»·ù¿¡¼­ÀÇ chlorophyII-aÀÇ ³óµµ¸¦ ¸ðÀÇÇÏ¿´´Ù. ¸ðÀÇÇÑ ¹Ù¿¡ ÀÇÇÏ¸é °©Ãµ°ú ¹Ìȣõ¿¡¼­ NH3-N°ú PO4-P°¡ 70% °¨¼ÒµÇ¾îÁ® ±Ý°­º»·ù·Î À¯ÀÔµÈ´Ù°í °¡Á¤ÇÏ´Â °æ¿ì¸¦ Á¦¿ÜÇϰí´Â °ÅÀÇ ¹Ì¹ÌÇÑ chlorophyII-a ³óµµº¯È­À²À» º¸¿´´Ù.
The Water Quality Analysis Simulation Program 5 (WASP5) and HEC-2 models have been coupled and applied to find the possibility of simulation of long-term river water quality variation. The EUTR05 as a simulator of water quality simulation in WASPS model was used to simulate the water quality variables in the downstream of Geum-River from Daechung multi-purpose dam during the dry period. The water quality and flow rate conditions have been measured at the stage measurement stations located in the downstream of Geum-River from Daechung dam in December, 1998 and January and March, 1999. The water quality simulation model was calibrated with January data of 1999, and verified with December data of 1998 and March data of 1999. The trend of longitudinal variation of water quality variables simulated by model is consistent with that of measured water quality constituents except chlorophyll-a, $BOD_5,;NH_3-N;and;PO_4-P$ simulated with March data of 1999. Furthennore, the chlorophyll a concentration in the mainstream of Geum-River was simulated by changing the concentrations of $PO_4-P$ and/or $NH_4-N$ flowing into the mainstream of Geum-River from Gabcheon and Mihocheon. The variation of chlorophyll a concentration in the mainstream was almost ignorable except only when $NH_3-N;and;PO_4-P$ concentrations decreased by 70% flow into the mainstream from Gabcheon and Mihocheon.
 
Ű¿öµå
¼öÁú¸ðÀÇ;±Ý°­;water quality simulation;Geum-river;WASP5;HEC-2;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.33, no.2, 2000³â, pp.145-157
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011920063567)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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