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Çѱ¹¼öÀÚ¿øÇÐȸ / v.38, no.4, 2005³â, pp.271-280
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ÇÏõ ¼öÀ§-À¯·®°î¼±½Ä °³¼± ¹× ¸ðÇü°³¹ß
( Stage-Discharge Rating Curve Model Development and Modification ) |
| Àå±âȯ;ÀÌÀçÇü; Çѱ¹¼öÀÚ¿ø°ø»ç ±Ý°ºÏºÎ±ÇÁö¿ªº»ºÎ;ÀüºÏ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
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| º» ¿¬±¸ÀÇ ¸ñÀûÀº ±âÁ¸ ¼öÀ§-À¯·®°î¼±½Ä¿¡ ³»ÀçµÇ¾î ÀÖ´ø ¹ß»ê°ú ó¸® ºÒ´É¹®Á¦¸¦ ÇØ°áÇϱâ À§ÇÑ »õ·Î¿î ÇüÅÂÀÇ °ü°è½Ä($Q=p(h-e)^{eta}-{gamma}$)À» Á¦¾ÈÇÏ°í ±×·¯ÇÑ ¼öÀ§-À¯·®°î¼±½Ä »êÁ¤¸ðÇüÀ» °³¹ßÇÏ¿´´Ù. ¹ß»ê ¹®Á¦´Â ¿µÀ¯·® ¼öÀ§ ¸Å°³º¯¼ö e¸¦ ã°í ÃßÁ¤µÈ ½ÄÀÇ ÃÑ¿ÀÂ÷ °ªÀ» ÃÖ¼ÒÈÇÏ´Â µ¿¾È ½Â¼ö ¸Å°³º¯¼ö ${eta}$°¡ ºñÁ¤»óÀûÀ¸·Î Ä¿Áö´Â °ÍÀÌ´Ù. ºÒ´É ¹®Á¦´Â e°ªÀÌ °èÃø ÃÖ¼Ò¼öÀ§ ÀÌ»óÀÇ °ªÀÏ ¶§ (h - e)°ªÀÌ À½¼ö°¡ µÇ¾î ·Î±×°ªÀ» ÃëÇÏ´Â °ÍÀÌ ºÒ°¡´ÉÇÏ´Ù´Â °ÍÀÌ´Ù. ÀÌ»óÀÇ µÎ °¡Áö ¹®Á¦´Â Á¦¾îº¯¼ö ${gamma}$¸¦ µµÀÔÇÔÀ¸·Î¼, ${eta}$¸¦ °¨¼Ò½ÃŰ´Â È¿°ú¿Í "0" ÀÌ»óÀ¸·Î (h - e)¸¦ Á¦¾îÇÒ ¼ö ÀÖ°Ô µÇ¾ú´Ù. º» ¿¬±¸¿¡¼´Â ¹°¸®Àû ºÐ¼®°ú ¹Î°¨µµ ºÐ¼®À» ÅëÇÏ¿© ¼öÀ§-À¯·®°î¼±½Ä¿¡¼ ¸Å°³º¯¼ö ${gamma}$ÀÇ ¿µÇâÀÌ e ÀÇ ¿µÇâ°ú °ÅÀÇ °°À½À» º¸¿´´Ù. ¶ÇÇÑ °³¹ßµÈ WinCARD ½Ã½ºÅÛÀº ¸ðµç ¼öÀ§±¹ÀÇ ¼ö¹®ºÐ¼®¿¡ »ç¿ëµÇ´Â ±âÁ¸ ¼öÀ§-À¯¶û°î¼±½ÄÀÇ ÀûÇÕµµ¸¦ Æò°¡Çϰí, ÇÏõÀ¯·® »êÁ¤À» À§ÇÑ ½Å±Ô ¼öÀ§-À¯·®°î¼±½ÄÀ» ÀÛ¼ºÇϴµ¥ Ȱ¿ëµÉ ¼ö ÀÖ´Ù. |
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| The goal of this study is to recommend a new type of stage-discharge rating curve ($Q=p(h-e)^{eta}-{gamma}$) useful for satisfying divergence, and one other seemingly irresolvable problem related to exited rating curves, while also extending this rating curve model. The problem of divergence is that during the finding of the CZF (cease-to-zero flow) parameter e and while minimizing the sum of total errors of the estimated curve, the exponential parameter ${eta}$ become an abnormally large value. The insoluble problem is that when the value e is greater then the recorded minimum at the gauged stage, it is impossible to have a negative logarithm value (h-e). The two problems above can be satisfied by adapting the control value ${gamma}$, which affects the reduction of ${gamma}$ and gives us the possibility of controlling (h-e) over zero. The study results show that the effects of parameter ${gamma}$ are very similar to that of e when conducting physical and sensitivity analyses. This system can be used towards developing a new stage-discharge rating curve for river discharge, for use in evaluating the acceptability of existing stage-discharge rating curves generated by using hydrologic analyses at all stations. |
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| Ű¿öµå |
| ¼öÀ§-À¯·®°î¼±½Ä;À¯·®°ü°è½Ä;ÇÏõÀ¯·®ÃøÁ¤;stage-discharg rating curve;rating curve;river flow measurement; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.38, no.4, 2005³â, pp.271-280
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200531234572709)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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