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Çѱ¹¼öÀÚ¿øÇÐȸ / v.36, no.3, 2003³â, pp.345-363
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ÀüÀÌÇÔ¼ö¸ðÇü°ú Àϱ⠹߻ý¸ðÇüÀ» ÀÌ¿ëÇÑ À¯¿ª±Ô¸ð ±âÈĺ¯È½Ã³ª¸®¿ÀÀÇ ÀÛ¼º
( Construction of Basin Scale Climate Change Scenarios by the Transfer Function and Stochastic Weather Generation Models ) |
| ±èº´½Ä;¼º´ÇÏ;±è³²¿ø; ÀÎÇÏ´ëÇб³ Åä¸ñ°øÇаú;ÀÎÇÏ´ëÇб³ Åä¸ñ°øÇаú;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø;
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| ´ë±â¼øÈ¯¸ðÇü(GCM)¿¡ ÀÇÇÏ¸é ¿Â½Ç°¡½º³óµµÀÇ Áõ°¡´Â Àü±¸¿Í ±¹Áö±Ô¸ðÀÇ ±âÈĺ¯È¿¡ Áß¿äÇÑ °ü·ÃÀÌ ÀÖÀ½ÀÌ ¾Ë·ÁÁ® ÀÖ´Ù. GCMÀº ´ÜÀÏÁöÁ¡ÀÇ ±â»óÇÐÀû ¼øÈ¯°úÁ¤À» ºÐ¼®Çϴµ¥´Â ºÒÈ®½Ç¼ºÀ» Áö´Ï°í Àֱ⠶§¹®¿¡ ÇöÀç·Î¼´Â Ãà¼Ò±â¹ýÀÌ ´ë±â¼øÈ¯¸ðÇü(GCM)ÀÇ °³¹ßÀÚµéÀÌ Á¦°øÇÒ ¼ö ÀÖ´Â °Í°ú ¸ðÇüÀ» ÀÌ¿ëÇÏ¿© ±âÈÄ¿µÇâÀ» Æò°¡ÇÏ´Â ¿¬±¸ÀÚµéÀÌ ¿ä±¸ÇÏ´Â °Í »çÀÌÀÇ Â÷ÀÌÁ¡À» ¿¬°èÇϱâ À§ÇØ ÀÌ¿ëµÇ°í ÀÖ´Ù. º» ³í¹®¿¡¼´Â Åë°èÇÐÀû Ãà¼Ò±â¹ýÀ» ÀÌ¿ëÇÏ¿© ±¹Áö ±Ô¸ðÀÇ ±âÈĺ¯ÈÀÇ ¿µÇâÀ» Æò°¡ÇÒ ¼ö ÀÖ´Â ¹æ¹ýÀ» Á¦½ÃÇϰíÀÚ ÇÏ¿´´Ù. º» ¹æ¹ýÀ» ÀÌ¿ëÇÑ´Ù¸é ÇöÀç¿Í ¹Ì·¡ÀÇ ±¹ÁöÀû ±Ô¸ðÀÇ ±âÈİÁ¦·Â ÇÏ¿¡¼ÀÇ ÁöÇ¥ ±â»óº¯¼öÀÇ ½Ã³ª¸®¿À¸¦ Àú ºñ¿ëÀ¸·Î ½Å¼ÓÇÏ°Ô ÀÛ¼ºÇÒ ¼ö ÀÖ´Ù. ±âÈĺ¯È½Ã³ª¸®¿ÀÀÇ ÀÛ¼ºÀº Åë°èÇÐÀû ȸ±Í¹æ¹ýÀÎ ÀüÀÌÇÔ¼ö¿Í Ãß°èÇÐÀû Àϱâ¹ß»ý¸ðÇüÀ» ÀÌ¿ëÇÏ¿´´Ù. ÀüÀÌÇÔ¼ö´Â ÀúÇØ»óµµÀÇ GCM °ÝÀÚ º¯¼öµéÀ» °íÇØ»óµµÀÇ ´ÜÀÏ ÁöÁ¡ÀÇ º¯¼öµé·Î º¯È¯½Ã۸ç, ÀÌ º¯¼öµéÀº ´ÜÀÏ ÁöÁ¡ÀÇ Æ¯Á¤ ÀÏ ÁöÇ¥ ±â»ó º¯¼ö¸¦ ¸ðÀÇÇϱâ À§ÇØ Ãß°èÇÐÀû Àϱâ¹ß»ý ¸ðÇüÀÇ ¸Å°³º¯¼ö¸¦ ¼öÁ¤Çϴµ¥ ÀÌ¿ëµÇ¾ú´Ù. º» ¿¬±¸¿¡¼´Â YONU GCMÀ» ÀÌ¿ëÇÏ¿© Á¦¾î½ÇÇè°ú Á¡Áõ½ÇÇèÀ» ½Ç½ÃÇÏ¿© Àü±¸±Ô¸ðÀÇ ±âÈĺ¯È½Ã³ª¸®¿À¸¦ ÀÛ¼ºÇÏ¿´´Ù. |
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| From the General Circulation Models(GCMs), it is known that the increases of concentrations of greenhouse gases will have significant implications for climate change in global and regional scales. The GCM has an uncertainty in analyzing the meteorologic processes at individual sites and so the 'downscaling' techniques are used to bridge the spatial and temporal resolution gaps between what, at present, climate modellers can provide and what impact assessors require. This paper describes a method for assessing local climate change impacts using a robust statistical downscaling technique. The method facilitates the rapid development of multiple, low-cost, single-site scenarios of daily surface weather variables under current and future regional climate forcing. The construction of climate change scenarios based on spatial regression(transfer function) downscaling and on the use of a local stochastic weather generator is described. Regression downscaling translates the GCM grid-box predictions with coarse resolution of climate change to site-specific values and the values were then used to perturb the parameters of the stochastic weather generator in order to simulate site-specific daily weather values. In this study, the global climate change scenarios are constructed using the YONU GCM control run and transient experiments. |
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| Ű¿öµå |
| Ãà¼Ò±â¹ý;´ë±â¼øÈ¯¸ðÇü;±âÈĺ¯È;Àϱâ¹ß»ý¸ðÇü;Downscaling;General circulation models;Climate change;Weather generator model; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.36, no.3, 2003³â, pp.345-363
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200302612607591)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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