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Çѱ¹¼öÀÚ¿øÇÐȸ / v.39, no.3, 2006³â, pp.275-288
È®·ü·ÐÀû ÁßÀå±â ´ï À¯ÀÔ·® ¿¹Ãø (II) ¾Ó»óºí ´ï À¯ÀÔ·® ¿¹ÃøÀ» À§ÇÑ GDAPS Ȱ¿ë
( Probabilistic Medium- and Long-Term Reservoir Inflow Forecasts (II) Use of GDAPS for Ensemble Reservoir Inflow Forecasts )
±èÁøÈÆ;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 GDAPS(T213) Á߱⠱â»ó ¼öÄ¡¿¹º¸ ÀڷḦ Ȱ¿ëÇÑ ESP (Ensemble Streamflow Prediction) ±â¹ýÀ» °³¹ßÇÏ¿© ¹Ì·¡¿¡ ¹ß»ýÇÒ ¼ö ÀÖ´Â ´ï À¯ÀÔ·®ÀÇ ÁßÀå±âÀû È®·ü¿¹ÃøÀ» À§ÇØ Ãʰú È®·ü±¸°£º° ´ï À¯ÀÔ·®À» ¿¹ÃøÇϰí RPSS °ËÁõ±â¹ýÀ¸·Î ¿¹Ãø°á°úÀÇ Á¤È®µµ¸¦ ºÐ¼®ÇÏ¿´´Ù. °³¹ßµÈ ESP½Ã½ºÅÛÀ» Àû¿ëÇÑ °á°ú ÀÏ´ÜÀ§ °³³äÀÇ È®·ü¿¹º¸´Â ³ôÀº ºÒÈ®½Ç¼ºÀ» ³»Æ÷ÇÒ ¼ö ÀÖ°í, ÁßÀå±â È®·ü¿¹º¸¿¡ ÃÊÁ¡À» ¸ÂÃß¾î 1, 3, 7ÀÏ µîÀÇ ¿¹Ãø½Ã°£ ÇØ»óµµ¿¡ ´ëÇÑ ESPÁ¤È®µµÀÇ ¹Î°¨µµ¸¦ ºÐ¼®ÇÑ °á°ú ¿¹Ãø½Ã°£ ÇØ»óµµ °£°ÝÀÌ Áõ°¡ÇÒ¼ö·Ï ¿¹Ãø°á°úÀÇ ºÒÈ®½Ç¼ºÀÌ °¨¼ÒÇϸ鼭 ±× Á¤È®µµ°¡ Àü¹ÝÀûÀ¸·Î Áõ°¡ÇÔÀ» »ìÆìº¼ ¼ö ÀÖ¾ú´Ù. ÀÌ·¯ÇÑ °á°ú¸¦ ¹ÙÅÁÀ¸·Î GDAPS ÀڷḦ Ȱ¿ëÇÑ 1ÁÖ ´ÜÀ§ÀÇ ÇÑ´Þ(28ÀÏ)¿¹º¸¸¦ ¼öÇàÇÑ ESP °á°ú´Â °¢ Ãʰú È®·ü±¸°£ ºÐÆ÷ÀÇ ÀûÀýÇÑ Áõ°¡ ¹× °¨¼Ò·Î ÀÎÇÏ¿© ±× ½Ã°£Àû º¯µ¿¼ºÀÌ ¾ÈÁ¤ÀûÀ¸·Î ¿¹ÃøµÇ°í ¿¹Ãø°á°úÀÇ ºÒÈ®½Ç¼ºÀ» °¨¼Ò½Ãų ¼ö ÀÖ¾î ±× È°¿ë°¡Ä¡°¡ ³ôÀº °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ÀÌ·¯ÇÑ °üÁ¡¿¡¼­ º» ¿¬±¸ÀÇ ESP ½Ã½ºÅÛÀº ÁßÀå±âÀû Ãø¸é¿¡¼­ GDAPS ÀÚ·áÀÇ È°¿ë°¡Ä¡¸¦ ³ôÀÏ ¼ö ÀÖ°í, ±âÁ¸ ESP °á°úº¸´Ù Çâ»óµÈ Á¤È®µµ·Î ´ï À¯ÀÔ·®À» ¿¹ÃøÇÒ ¼ö ÀÖÀ¸¹Ç·Î ½Ç½Ã°£ ´ï À¯ÀÔ·® ¿¹Ãø¿¡ Àû¿ëÇÑ´Ù¸é ¼öÀÚ¿ø °ü¸® Â÷¿ø¿¡¼­ À¯¿ëÇÑ ¼ö´ÜÀÌ µÉ ¼ö ÀÖÀ» °ÍÀÌ´Ù.
This study develops ESP (Ensemble Streamflow Prediction) system by using medium-term numerical weather prediction model which is GDAPS(T213) of KMA. The developed system forecasts medium- and long-range exceedance Probability for streamflow and RPSS evaluation scheme is used to analyze the accuracy of probability forecasts. It can be seen that the daily probability forecast results contain high uncertainties. A sensitivity analysis with respect to forecast time resolution shows that uncertainties decrease and accuracy generally improves as the forecast time step increase. Weekly ESP results by using the GDAPS output with a lead time of up to 28 days are more accurately predicted than traditional ESP results because conditional probabilities are stably distributed and uncertainties can be reduced. Therefore, it can be concluded that the developed system will be useful tool for medium- and long-term reservoir inflow forecasts in order to manage water resources.
 
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´ï À¯ÀÔ·®;ÁßÀå±â;È®·ü¿¹º¸;ESP;reservoir inflow;medium- and long-term;probability forecast;GDAPS;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.39, no.3, 2006³â, pp.275-288
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200617033458593)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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