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Çѱ¹¼öÀÚ¿øÇÐȸ / v.39, no.7, 2006³â, pp.617-626
EOF ÇØ¼® ¹× ´Ùº¯·®½Ã°è¿­ ¸ðÇüÀ» ÀÌ¿ëÇÑ ³ó¾÷°¡¹³ ´ëºñ´É·ÂÀÇ Æò°¡
( Evaluation of Agricultural Drought Prevention Ability Based on EOF Analysis and Multi-variate Time Series Model )
À¯Ã¶»ó;±è´ëÇÏ;±è»ó´Ü; °í·Á´ëÇб³ »çȸȯ°æ½Ã½ºÅÛ°øÇаú;°í·Á´ëÇб³ »çȸȯ°æ½Ã½ºÅÛ°øÇаú;ºÎ°æ´ëÇб³ ȯ°æ½Ã½ºÅÛ°øÇкÎ;
 
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º» ¿¬±¸¿¡¼­´Â Àü±¹ 59°³ ÁöÁ¡ÀÇ 3°³¿ù SPI ÀڷḦ °¡Áö°í EOF¸¦ À¯µµÇÏ°í ¾Æ¿ï·¯ ±× °ø°£Àû Ư¼ºÀ» ºÐ¼®ÇÏ¿´´Ù. ¶ÇÇÑ EOF ÇØ¼®¿¡ ÀÇÇØ ³ªÅ¸³­ Coefficient Time Series¸¦ ´Ùº¯·® ½Ã°è¿­ ¸ðÇü¿¡ Àû¿ëÇÏ¿© SPI ½Ã°è¿­À» ÀÚ·á±â°£ 10,000³âÀ¸·Î È®ÀåÇÏ¿´°í Àü±¹ÀûÀÎ °¡¹³½Éµµ¸¦ ÆÇ´ÜÇϱâ À§ÇØ Àü±¹ Æò±Õ Áö¼ö¸¦ ÀÌ¿ëÇÏ¿© ÀçÇö±â°£º° ÃÖ´ë½Éµµ¸¦ °áÁ¤ÇÏ¿´´Ù. ¸¶Áö¸·À¸·Î °¢ ´ë±Ç¿ªÀÇ ´ï À¯È¿Àú¼ö·®°ú ³ó°æÁö ¸éÀûÀ» ÀÌ¿ëÇÏ¿© ³ó¾÷°¡¹³ ´ëºñ´É·ÂÀ» ÆÇ´ÜÇÏ¿´´Âµ¥ ÀçÇö±â°£ 30³â °¡¹³¿¡ ÀûÀýÈ÷ ´ëºñÇÒ ¼ö ÀÖ´Â À̼ö´É·ÂÀ» °®Ãá À¯¿ªÀº ÇѰ­À¯¿ªÀÌ À¯ÀÏÇÑ °ÍÀ¸·Î ÆÄ¾ÇµÇ¾ú´Ù. ƯÈ÷ ¿µ»ê°­ À¯¿ªÀº Å« ³ó°æÁö ¸éÀû¿¡ ºñÇØ Àú¼ö¿ë·®ÀÌ Å©°Ô ºÎÁ·ÇÑ °ÍÀ¸·Î ÆÄ¾ÇµÇ¾ú°í °­¿ì·®ÀÇ Å©±â¿¡ ¹Î°¨ÇÑ ³ó¾÷°¡¹³¿¡ °¡Àå Ãë¾àÇÒ °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
In this study 3-month SPI data from 59 stations over the Korean peninsula are analyzed by deriving and spatially characterizing the EOFs. Also, the coefficient time series of EOF are applied to the multi-variate time series model to generate the time series of 10,000 years, to average them to estimate the areal average, and to decide the maximum drought severity for given return periods. Finally, the drought prevention ability is evaluated by considering the effective storage of dam within the basin and the size of agricultural area. Especially for the return period of 30 years, only the Han river basin has the potential to overcome the drought. Other river basins like the Youngsan river basin, which has a large portion of agricultural area but less water storage, are found to be very vulnerable to the rainfall-sensitive agricultural drought.
 
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EOF ÇØ¼®;´Ùº¯·® ½Ã°è¿­¸ðÇü;°¡¹³½Éµµ;ÀçÇö±â°£;EOF analysis;multivariate time series model;drought severity;return period;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.39, no.7, 2006³â, pp.617-626
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200633242282969)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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