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Çѱ¹¼öÀÚ¿øÇÐȸ / v.36, no.2, 2003³â, pp.211-221
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½Ã°£-¸éÀû°î¼±ÀÇ À¯¿ªÀ¯ÃâÇØ¼® ¿µÇâºÐ¼®
( Analysis of Time-Area Curve Effects on Watershed Runoff ) |
| Á¤´ë¸í;¹è´öÈ¿; ¼¼Á¾´ëÇб³ Åä¸ñȯ°æ°øÇаú;¼¼Á¾´ëÇб³ ¹°ÀÚ¿ø¿¬±¸¼Ò, Åä¸ñȯ°æ°øÇаú;
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| º» ¿¬±¸¿¡¼´Â Clark ¹æ¹ýÀ¸·Î À¯¿ªÀ¯ÃâÇØ¼®À» ¼öÇàÇÒ ¶§ ¿ä±¸µÇ´Â ½Ã°£-¸éÀû°î¼±À» GIS ±â¹ýÀ» ÀÌ¿ëÇÏ¿© °´°üÀûÀ¸·Î »êÁ¤ÇÒ ¼ö ÀÖ´Â ¹æ¹ýÀ» Á¦¾ÈÇϰí, À̿Ͱ°Àº ½Ã°£-¸éÀû°î¼±ÀÌ À¯ÃâÇØ¼®¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» °ËÅäÇϴµ¥ ÀÖ´Ù. Clark ¹æ¹ýÀÇ ¼¼ ¸Å°³º¯¼öÀÎ ½Ã°£-¸éÀû°î¼±, Àú·ù»ó¼ö ¹× µµ´Þ½Ã°£ÀÇ »ó´ëÀûÀÎ ºñ±³¸¦ À§ÇØ 1990. 9. 10 ¡ 9. 14 È«¼ö»ç»óÀ» ¼±ÅÃÇÏ¿© ¼Ò¾ç´ï ¹× ÃæÁÖ´ï À¯¿ª¿¡ ´ëÇØ À¯·®ÀÇ ¹Î°¨µµ ºÐ¼®À» ¼öÇàÇÏ¿´´Ù. º» ¿¬±¸¿¡¼´Â ƯÁ¤À¯¿ªÀÇ ½Ã°£-¸éÀû°î¼± »êÁ¤ÀÌ ¿©ÀÇÄ¡ ¾ÊÀ» °æ¿ì »ç¿ë °¡´ÉÇÑ HEC-1¿¡¼ Á¦°øµÇ´Â ¹«Â÷¿ø ½Ã°£-¸éÀû°î¼±ÀÇ ¿µÇâµµ ºÐ¼®ÇÏ¿´´Ù. º» ¿¬±¸¿¡¼ ¾òÀº ÁÖ¿ä °á°ú¸¦ ¿ä¾àÇÏ¸é ´ÙÀ½°ú °°´Ù. ½Ã°£-¸éÀû°î¼±ÀÇ °æ¿ì º» ¿¬±¸¿¡¼ Á¦¾ÈµÈ GIS¸¦ ÀÌ¿ëÇÏ¿© »êÁ¤µÈ ½Ã°£-¸éÀû°î¼±À» »ç¿ëÇÑ °æ¿ì¿Í HEC-1 ¹«Â÷¿ø ½ÄÀ» ÀÌ¿ëÇÏ¿© À¯ÃâÇØ¼®À» ¼öÇàÇÑ °æ¿ì¸¦ ºñ±³ÇÑ °á°ú À¯ÃâÇØ¼® °á°ú¿¡´Â ¶Ñ·ÇÇÑ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù. ¶ÇÇÑ, Clark ¹æ¹ý¿¡¼ ½Ã°£-¸éÀû°î¼± ÀÌ¿ÜÀÇ ¸Å°³º¯¼öÀÎ µµ´Þ½Ã°£°ú Àú·ù»ó¼öÀÇ º¯È°¡ À¯Ãâ·® »êÁ¤¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºÐ¼®ÇÑ °á°ú µÎ °ª ¸ðµÎ ÷µÎÈ«¼ö·®ÀÇ Å©±â¿Í ¹ß»ý½Ã°£¿¡ Å©°Ô ¿µÇâÀ» ¹ÌÄ¡´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. µû¶ó¼ Clark ¹æ¹ýÀ» ÀÌ¿ëÇÏ¿© À¯¿ª À¯Ãâ·®À» »êÁ¤ÇÒ °æ¿ì ½Ã°£-¸éÀû°î¼± »êÁ¤º¸´Ù µµ´Þ½Ã°£ ¹× Àú·ù»ó¼ö »êÁ¤¿¡ ƯÈ÷ ÁÖÀǰ¡ ÇÊ¿äÇÑ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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| The objectives of this study are to analyze the effects of time-area curve on Clark's watershed runoff method in addition to propose a GIS-based objective method for creating time-area curve. For the relative comparison of the variation of time-area curve to those of travel time and storage coefficient of Clark method, runoff sensitivities are performed on Soyang- and Chungju-dam watersheds for 1990. 9. 10~9. 14 event. The dimensionless time-area curve in HEC-1 that can be utilized in the case that the curve is not supplied is also tested in this study. The important results obtained in this study are as follows: The effects of time-area curve created by either GIS-based objective method or dimensionless curve are not significant for runoff analysis; The storage coefficient (K) and travel time( t$_{c}$), Clark's other two model parameters, are more sensitive than time-area curve for peak flow simulation. Therefore, it can be concluded that the parameters K and t$_{c}$ are more carefully estimated rather than time-area curve, when Clark method is used for runoff analysis. |
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| Ű¿öµå |
| HEC-1¸ðÇü;Clark ÇÕ¼º´ÜÀ§µµ;½Ã°£-¸éÀû°î¼±;µµ´Þ½Ã°£;Àú·ù»ó¼ö;HEC-1;Clark unit hydrograph;time-area curve;travel time;storage coefficient; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.36, no.2, 2003³â, pp.211-221
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921617968)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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