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Çѱ¹¼öÀÚ¿øÇÐȸ / v.33, no.3, 2000³â, pp.307-314
¼­¿ïÁöÁ¡ ¿¬°­¼ö·® ÀÚ·á¿¡ ³ªÅ¸³­ ´Ù¿ìÇØ ¹× °ú¿ìÇØÀÇ ÀçÇö Ư¼º¿¡ °üÇÑ ¿¬±¸
( A Study on the Recurrence Characteristics of Wet and Dry Years Appeared in Seoul Annual Rainfall Data )
À¯Ã¶»ó;±èº¸À±;³ëÀç°æ; °í·Á´ëÇб³ ȯ°æ°øÇаú;°í·Á´ëÇб³ ȯ°æ°øÇаú;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¼Ò;
 
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º» ¿¬±¸¿¡¼­´Â Á¶¼±½Ã´ëºÎÅÍ ÃÖ±Ù±îÁöÀÇ ¾à 200³â°£ÀÇ ¼­¿ïÁöÁ¡ ¿¬°­¼ö·® ÀڷḦ ÀÌ¿ëÇÏ¿© ´Ù¿ìÇØ ¹× °ú¿ìÇØÀÇ ÀçÇöƯ¼º¿¡ ´ëÇØ¼­ »ìÆìº¸¾Ò´Ù. ±âº»ÀûÀ¸·Î ¿øÀÚ·á¿¡ ³ªÅ¸³­ ÀÚ±â»ó°üƯ¼ºÀ» ºÐ¼®ÇÔÀº ¹°·Ð ¸î °³ÀÇ Àý´Ü¼öÁØ(truncation level)¿¡ ´ëÇØ ´Ù¿ìÇØ ¹× °ú¿ìÇØÀÇ ÀçÇö°æÇâÀÌ ¾î¶²Áö¸¦ »ìÆìº¸¾Ò´Ù. ¶ÇÇÑ °¢°¢ÀÇ Àý´Ü¼öÁØ¿¡ ´ëÇØ ¿¬°­¼ö·®À» Æò³â, ´Ù¿ìÇØ ¹× °ú¿ìÇØ·Î ³ª´©°í °¢°¢ÀÇ ÀüÀÌÈ®·üÀ» Á¶»çÇÏ¿© º½À¸·Î¼­ ±Ã±ØÀûÀ¸·Î´Â °¢°¢ÀÇ °æ¿ì¿¡ ´ëÇØ Æò³â, ´Ù¿ìÇØ ¹× °ú¿ìÇØÀÇ Æò±ÕÀçÇØ±â°£ÀÌ ¾ó¸¶³ª µÇ´ÂÁö¸¦ ÃßÁ¤ÇØ º¸¾Ò´Ù. ÀÌ·¯ÇÑ ºÐ¼®Àº Á¶¼±½Ã´ëÀÇ Ãø¿ì±â±â·Ï°ú ±Ù´ëÀÇ °­¿ì°üÃø±â·ÏÀ» Æ÷ÇÔÇÑ ÀüüÀÇ ±â·Ï»Ó¸¸ ¾Æ´Ï¶ó Ãø¿ì±â °üÃø±â·Ï ¹× ±Ù´ë °üÃø±â·Ï¿¡ ´ëÇØ °¢°¢ Àû¿ëÇØ º½À¸·Î¼­ ºñ±³ ºÐ¼®µÉ ¼ö ÀÖµµ·Ï ÇÏ¿´´Ù. ÀüüÀڷḦ ÀÌ¿ëÇÑ °á°úÀÇ °æ¿ì 1900³â ÀüÈÄÀÇ °ÇÁ¶±âÀÇ ¿µÇâÀ» Á¦¿ÜÇÑ´Ù¸é °ÇÁ¶±âÀÇ Àü¹ÝºÎ ¹× ÈĹݺθ¸À» ÀÌ¿ëÇÑ °á°ú¿Í ¾î´À Á¤µµ À¯»çÇÑ °á°ú¸¦ ÁÜÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ¾Æ¿ï·¯ °ÇÁ¶±âÀÇ Àü¹ÝºÎ¿Í ÈĹݺο¡ ´ëÇÑ ºñ±³¿¡¼­´Â °ÇÁ¶±â ÈĹݺÎÀÇ ±â·Ï¿¡¼­, ƯÈ÷ »ó´ëÀûÀ¸·Î Å« Àý´Ü¼öÁØ¿¡ ´ëÇØ, °ú¿ìÇØÀÇ ÀçÇö±â°£ÀÌ »ó´ëÀûÀ¸·Î Å©°Ô ³ªÅ¸³ª´Â Â÷À̸¦ »ìÆìº¼ ¼ö ÀÖ¾ú´Ù. ´ë·« Æò±Õ¿¡¼­ Ç¥ÁØÆíÂ÷(¾à370mm)Á¤µµ°¡ ¹þ¾î³­ ¼öÁØÀ» ´Ù¿ìÇØ ¹× °ú¿ìÇØÀÇ ±âÁØÀ¸·Î º»´Ù¸é ´Ù¿ìÇØÀÇ ÀçÇö±â°£Àº 5¡­6³â, °ú¿ìÇØÀÇ ÀçÇö±â°£Àº 6¡­7³â Á¤µµ·Î °ú¿ìÇØÀÇ ÀçÇö±â°£ÀÌ ´Ù¿ìÇØÀÇ ÀçÇö±â°£ º¸´Ù ¾à°£ ±æ°Ô ³ªÅ¸³ª°í ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù.
This study is to investigate the recurrence characteristics of wet and dry years using over 200 year records of annual rainfall depth including Chosun Age in Korea. As well as analyzing the correlation structure of the raw data, recurrence trends of wet and dry year has been investigated based on several truncation levels (mean, $mean{pm}0.25stdv.,;mean{pm}O.5stdv.,;mean{pm}O.75stdv.,;mean{pm}stdv.$). Also the transition probability among wet, dry and normal years has been derived for the same truncation levels. and finally the average return periods based on the steady-state probabilities were obtained. This analysis has been applied to not only the entire data but also partial data set of before- and after-the long dry period around 1900 in order to compare and detect the possible difference between the Chukwooki (an old raingauge invented in Chosun age) and the modem flip-bucket style. As a result, Similar pattern of dry and wet year recurrence has been found, but the return period of extremely dry years after the dry period shown longer than that before the dry period. Assuming that the dry and wet years can be defined as $mean{pm}$ standard deviations, respectively, the return period of the wet years is shown to be about 5~6 years and that of the dry years about 6~7 years.
 
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¿¬°­¼ö·®;ÀçÇö±â°£;ÀüÀÌÈ®·ü;´Ù¿ìÇØ;°ú¿ìÇØ;annual rainfall depth;return penod;transition probability;wet year;dry year;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.33, no.3, 2000³â, pp.307-314
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011920063692)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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