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Çѱ¹¼öÀÚ¿øÇÐȸ / v.41, no.4, 2008³â, pp.379-394
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±âÈĺ¯È°¡ ±ØÇѰ¿ì¿Í I-D-F ºÐ¼®¿¡ ¹ÌÄ¡´Â ¿µÇâ Æò°¡
( Impact Assessment of Climate Change on Extreme Rainfall and I-D-F Analysis ) |
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ÃÖ±Ù ¼ö°ø½Ã¼³¹°ÀÇ ¼³°è±Ô¸ð¸¦ ³Ñ¾î¼´Â ±ØÇÑ °¿ì»ç»óÀÌ ¹ß»ýÇÏ¿© È«¼ö¹æ¾î¸¦ À§ÇÏ¿© ±¸ÃàµÈ ¼ö¸®±¸Á¶¹°ÀÌ ÆÄ±« µÇ´Â µî ¸¹Àº È«¼öÇÇÇØ°¡ ¹ß»ýÇϰí ÀÖ´Ù. µû¶ó¼ ±ØÇÑ °¿ì»ç»óÀÇ ½Ã°ø°£Àû ¹ß»ý Ư¼ºÀ» ÆÄ¾ÇÇÏ°í ¹Ì·¡ÀÇ ±âÈĺ¯ÈÇÏ¿¡¼ ±ØÇѰ¿ì»ç»óÀÌ ¾î¶»°Ô º¯ÈÇÏ°í ¼³°è¼ö¸í±â°£(Design period)µ¿¾È ºÐÆ÷ Ư¼ºÀÌ ¾î¶»°Ô º¯ÈÇÒÁö¸¦ ÀÌÇØÇÏ´Â °ÍÀº ¸Å¿ì Áß¿äÇÏ´Ù. ÀÌ¿¡ º» ³í¹®¿¡¼´Â ¹Ì·¡ÀÇ ±âÈĺ¯È°¡ ±ØÇÑ °¿ì¿¡ ¾î¶°ÇÑ ¿µÇâÀ» ¹ÌÄ¡´ÂÁö¸¦ Æò°¡Çϱâ À§ÇØ ±âÈĺ¯È ½Ã³ª¸®¿À¸¦ ÀÌ¿ëÇÏ¿© ¹Ì·¡ÀÇ ±ØÇѰ¿ìÀÇ Æ¯¼º ºÐ¼®°ú I-D-F ºÐ¼®À» ½Ç½ÃÇÏ¿´´Ù. º» ¿¬±¸¿¡¼´Â SRES B2 ¿Â³È°¡½º ½Ã³ª¸®¿À¿Í YONU CGCM ¸¦ ÀÌ¿ëÇÏ¿© 2030s(2031-2050)¸¦ ¸ðÀÇÇÏ¿´À¸¸ç Åë°èÇÐÀû Ãà¼Ò±â¹ýÀ» Àû¿ëÇÏ¿© ¿ì¸®³ª¶ó¿¡ À§Ä¡ÇÑ ±â»óû »êÇÏ °üÃø¼Òº°·Î ÀÏ ±â»óÀڷḦ ±¸ÃàÇÏ¿´´Ù. ¶ÇÇÑ, À̸¦ °ú°Å °üÃø ÀÚ·á¿Í ºñ±³ÇÏ¿© Quantile Mapping ¹æ¹ýÀ¸·Î ÆíÀ̺¸Á¤À» ½Ç½ÃÇÏ¿´°í, ±¸ÇüÆÞ½º(Modified Bartlett Lewis Rectangular Pulse, MBLRP) ¸ðÇü(Onof°ú Wheater, 1993; Onof 2000)°ú ºÐÇØ±â¹ý(adjust method)À» Àû¿ëÇÏ¿© ÀÏ °¿ì ½Ã°è¿ÀڷḦ ½Ã °¿ì ½Ã°è¿ ÀÚ·á·Î º¯È¯ÇÏ¿´À¸¸ç Áö¼Ó±â°£º° ºóµµº° °¿ì·®À» »êÁ¤ÇÏ¿© I-D-F °î¼±À» ÀÛ¼ºÇÏ¿´´Ù. º» ³í¹®¿¡¼´Â 66°³ °üÃø¼Ò Áß¿¡¼ ¼¿ï, ´ë±¸, ÀüÁÖ, ±¤ÁÖ ÁöÁ¡ÀÇ °á°ú¸¸À» ¼ö·ÏÇÏ¿´À¸¸ç ±× °á°ú °ÅÀÇ ¸ðµç ÁöÁ¡¿¡¼ ÇöÀç¿Í ºñ±³ÇÏ¿´À» ¶§ Áö¼Ó±â°£ÀÌ ±æ¾îÁú¼ö·Ï °¿ì°µµ°¡ Áõ°¡ÇÔÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. |
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Recently, extreme precipitation events beyond design capacity of hydraulic system have been occurred and this is the causes of failure of hydraulic structure for flood prevention and of severe flood damage. Therefore it is very important to understand temporal and spatial characteristics of extreme precipitation events as well as expected changes in extreme precipitation events and distributional characteristics during design period under future climate change. In this paper, climate change scenarios were used to assess the impacts of future climate change on extreme precipitation. Furthermore, analysis of future extreme precipitation characteristics and I-D-F analysis were carried out. This study used SRES B2 greenhouse gas scenario and YONU CGCM to simulate climatic conditions from 2031 to 2050 and statistical downscaling method was applied to establish weather data from each of observation sites operated by the Korean Meteorological Administration. Then quantile mapping of bias correction methods was carried out by comparing the simulated data with observations for bias correction. In addition Modified Bartlett Lewis Rectangular Pulse(MBLRP) model (Onof and Wheater, 1993; Onof 2000) and adjust method were applied to transform daily precipitation time series data into hourly time series data. Finally, rainfall intensity, duration, and frequency were calculated to draw I-D-F curve. Although there are 66 observation sites in Korea, we consider here the results from only Seoul, Daegu, Jeonju, and Gwangju sites in this paper. From the results we found that the rainfall intensity will be increased and the bigger intensity will be occurred for longer rainfall duration when we compare the climate conditions of 2030s with present conditions. |
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Ű¿öµå |
±âÈĺ¯È;Ãà¼Ò±â¹ý;MBLRP ¸ðÇü;°¿ì°µµ-Áö¼Ó±â°£-ºóµµ °î¼±;Climate Change;YONU CGCM;Downscaling;Quantile Mapping;MBLRP;I-D-F curve; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.41, no.4, 2008³â, pp.379-394
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200814264574472)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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