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Çѱ¹¼öÀÚ¿øÇÐȸ / v.36, no.6, 2003³â, pp.1047-1058
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ÀϺ° ¾Ï¸ð´Ï¾Æ¼º Áú¼Ò(NH3-N)³óµµ ¿¹ÃøÀ» À§ÇÑ ´ÙÁßȸ±Í¸ðÇü °³¹ß
( Development of Multiple Regression Models for the Prediction of Daily Ammonia Nitrogen Concentrations ) |
| Á¤¼¼¿õ; ÃæºÏ´ëÇб³ ȯ°æ°øÇаú;
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| °Ü¿ïö¿¡ ±Ý°ÇÏ·ù¿¡¼´Â ¾Ï¸ð´Ï¾Æ¼º Áú¼Ò(NH3-N) ³óµµ°¡ ÁÖ±âÀûÀ¸·Î ³ô°Ô °ËÃâµÇ¾î, ºÎ¿©ÁöÁ¡¿¡¼ Ãë¼öÇÏ´Â Á¤¼öÀåÀÇ ¼öó¸® °øÁ¤¿¡ Å« Àå¾Ö°¡ µÇ°í ÀÖ´Ù. Áú¼Ò³óµµ ÀúÇÏ¿Í ¼Òµ¶ºÎ»ê¹° »ý¼º ¾ïÁ¦¸¦ À§ÇØ Á¾Á¾ ´ëû´ïÀÇ Ãß°¡ ¹æ·ù°¡ °ËÅäµÇ°í ÀÖÀ¸³ª, ¹æ·ù·®°ú Á÷¼Ò³óµµ °ü°èÀÇ Á¤·®Àû ºÐ¼®¿¡ ¾î·Á¿òÀÌ ÀÖ¾ú´Ù. º» ¿¬±¸¿¡¼´Â 8³â°£ÀÇ ÀϺ° ¼öÁúÀÚ·á¿Í ´ï ¹æ·ù·® ÀڷḦ ÀÌ¿ëÇÏ¿© °Ü¿ïö(12¿ù¡3¿ù) µ¿¾È ÀϺ° NH3-N ³óµµ¸¦ ¿¹ÃøÇÒ ¼ö ÀÖ´Â ´ÙÁßȸ±Í¸ðÇüÀ» °³¹ßÇϰí, ÃÖ±Ù 2³â°£ÀÇ ÀڷḦ ÀÌ¿ëÇÏ¿© ¸ðÇüÀ» °ËÁõÇÏ¿´´Ù. ¸ðÇü °³¹ß°úÁ¤¿¡¼ ¸ðÀǰªÀº ½ÇÃø°ª°úÀÇ °áÁ¤°è¼ö¿Í ¸ðÇüÈ¿À²ÀÌ ¸ðµÎ 0.95 ÀÌ»óÀ¸·Î ³ô°Ô ³ªÅ¸³µ´Ù. °ËÁõ°úÁ¤¿¡¼´Â °¢°¢ 0.84¡0.94¿Í 0.77¡0.93À¸·Î½á ½Å·Úµµ°¡ ¾à°£ ¶³¾îÁ³Áö¸¸, ¹æ·ù·®°ú ÇÏ·ùÀÇ NH3-N ³óµµ °ü°è¸¦ ºÐ¼®Çϴµ¥ ÃæºÐÈ÷ Ȱ¿ë°¡´É ÇÑ °ÍÀ¸·Î Æò°¡µÇ¾ú´Ù. ¸ðÇüÀº °¥¼ö±â µ¿¾È ´ï ¹æ·ù·®ÀÌ NH3-N ³óµµ Àú°¨¿¡ ¹ÌÄ£ È¿°ú¸¦ ºÐ¼®Çϴµ¥ »ç¿ëµÇ¾ú´Ù. 1¡3¿ù µ¿¾È ¹æ·ù·®À» 5 ¿¡¼ 50cms±îÁö Áõ°¡½ÃÄÑ ÆÄ¸ç ¸ðÀÇÇÑ °á°ú, NH3-N ³óµµ´Â Æò±Õ 0.332¡0.583 mg/L °¨¼ÒÇÏ¿´À¸¸ç 2¿ù¿¡ °¡Àå Å« Àú°¨È¿°ú°¡ ³ªÅ¸³µ´Ù. °³¹ßµÈ ´ÙÁßȸ±Í ¼öÁú¸ðÀDZâ¹ýÀº ÃæºÐÇÑ ½ÇÃøÀÚ·á°¡ È®º¸µÈ °æ¿ì¿¡ ¼öÄ¡¸ðÇüÀÌ ¿ä±¸ÇÏ´Â ±¤¹üÀ§ÇÑ °æ°èÁ¶°Ç ÀÚ·á ¾øÀ̵µ ´ï ¹æ·ù·®°ú ÇÏõ¼öÁúÀÇ Àΰú°ü°è¸¦ ºÐ¼®Çϴµ¥ À¯¿ëÇÏ°Ô È°¿ë°¡´É ÇÒ °ÍÀ¸·Î ±â´ëµÈ´Ù |
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| Seasonal occurrence of high ammonia nitrogen(NH3-N) concentrations has hampered chemical treatment processes of a water plant that intakes water at Buyeo site of Geum river. Thus it is often needed to quantify the effect of Daecheong Dam ouflow on the mitigation of $NH_3$-N contamination. In this study, multiple regression models were developed for forecasting daily $NH_3$-N concentrations using 8 years of water quality and dam outflow data, and verified with another 2 years of data set. During model development, the coefficients of determination($R^2$) and model efficiency($E_{m}$) were greater than 0.95. The verification results were also satisfactory although those statistical indices were slightly reduced to 0.84¡0.94 and 0.77¡0.93, respectively. The validated model was applied to assess the effect of different amounts of dam outflow on the reduction of $NH_3$-N concentrations in 2002. The NH3-N concentrations dropped by 0.332¡0.583 mg/L on average during January¡March as outflow increases from 5 to 50cms, and was most significant on February. The results of this research show that the multiple regression approach has potential for efficient cause and effect analysis between dam outflow and downstream water quality. |
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| Ű¿öµå |
| ´ÙÁßȸ±ÍºÐ¼®¸ðÇü;¾Ï¸ð´Ï¾Æ¼º Áú¼Ò;¼öÁú ¸ðµ¨¸µ;´ï ¹æ·ù·®;Multiple Regression Model;NH3-N;Water Quality Modeling;Dam Outflow; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.36, no.6, 2003³â, pp.1047-1058
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311922122594)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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