|
|
|
Çѱ¹¼öÀÚ¿øÇÐȸ / v.41, no.5, 2008³â, pp.545-558
|
ºÎºÐÀû ·¹ÀÌ´õ Á¤º¸¿¡ µû¸¥ ¸éÀûÆò±Õ°¿ìÀÇ °üÃø¿ÀÂ÷
( Sampling Error of Areal Average Rainfall due to Radar Partial Coverage ) |
| À¯Ã¶»ó;ÇÏÀºÈ£;±èº´¼ö;±è°æÁØ;ÃÖÁ¤È£; °í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;¿¬¼¼´ëÇб³ Á¤º¸Åë°èÇаú;µµÈÁ¾ÇÕ±â¼ú°ø»ç ¼öÀÚ¿ø 1ºÎ;°í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| º» ¿¬±¸¿¡¼´Â Â÷Æó µîÀ» ÀÌÀ¯·Î ·¹ÀÌ´õ °¿ì°¡ ´ë»ó À¯¿ª ¶Ç´Â ¼ÒÀ¯¿ªÀ» ¿ÏÀüÇÏ°Ô Æ÷°ýÇÏÁö ¸øÇÏ´Â °æ¿ì¿¡ ´ëÇØ °¡¿ëÇÑ ·¹ÀÌ´õ °¿ì¸¦ ÀÌ¿ëÇÏ¿© ¸éÀûÆò±Õ°¿ì¸¦ »êÁ¤ÇÏ´Â °æ¿ì¿¡ Æ÷Ç﵃ ¼ö ÀÖ´Â ¿ÀÂ÷ÀÇ ±Ô¸ð¸¦ ÃßÁ¤ÇÏ¿´´Ù. º» ¿¬±¸´Â ÇѰ À¯¿ªÀÇ °¿ì°üÃø¿¡ °È ·¹ÀÌ´õ¸¦ ÀÌ¿ëÇÏ´Â °æ¿ì¸¦ Àû¿ë ¿¹·Î »ìÆìº¸¾Ò´Ù. ÇѰ À¯¿ªÀ» ¼öÀÚ¿ø´ÜÀ§ÁöµµÀÇ Á߱ǿª¿¡ ÇØ´çÇÏ´Â ÃÑ 20°³ÀÇ ¼ÒÀ¯¿ªÀ¸·Î ³ª´©¾î °ËÅäÇÒ °æ¿ì, ÃÑ ¼ÒÀ¯¿ª Áß °È ·¹ÀÌ´õ·Î ¿ÏÀüÈ÷ °üÃøµÇ´Â °æ¿ì´Â ÃÑ 5°³¿¡ ºÒ°úÇϸç, ÀüÇô °üÃøµÇÁö ¾Ê´Â ¼ÒÀ¯¿ªµµ 3°³°¡ ÀÖ´Ù. ³ª¸ÓÁö 12°³ÀÇ ¼ÒÀ¯¿ªÀº ºÎºÐÀûÀÎ ·¹ÀÌ´õ Á¤º¸¸¸ÀÌ °¡¿ëÇÑ °æ¿ì°¡ µÈ´Ù. ºÎºÐÀûÀÎ ·¹ÀÌ´õ Á¤º¸¸¸ÀÌ Á¸ÀçÇÏ´Â °æ¿ìÀÇ °üÃø¿ÀÂ÷´Â ±âº»ÀûÀ¸·Î °üÃøµÇ´Â ºÎºÐÀÇ ¸éÀû¿¡ ¹Ýºñ·ÊÇÏ¿© ÀÛ¾ÆÁöÁö¸¸, µ¿ÀÏÇÑ ¸éÀûÀÏ °æ¿ì¿¡´Â °üÃøµÇ´Â ¸éÀûÀÌ ¸î °³·Î Âɰ³Á® ÀÖ´À³Ä¿¡ µû¶ó ¿ÀÂ÷ÀÇ ±Ô¸ð°¡ ´Þ¶óÁö°Ô µÈ´Ù. µ¿ÀÏÇÑ °üÃø¸éÀûÀÏ °æ¿ì¿¡´Â ¸¹ÀÌ Âɰ³Á® ÀÖÀ»¼ö·Ï °üÃø¿ÀÂ÷°¡ ÀÛ¾ÆÁö°Ô µÈ´Ù. º» ¿¬±¸ÀÇ ´ë»óÀ¯¿ªÀÎ ÇѰÀ¯¿ªÀÇ °æ¿ì¿¡µµ °È ·¹ÀÌ´õ °¿ìÀڷḦ ÀÌ¿ëÇÏ¿© ¸éÀûÆò±Õ°¿ì¸¦ ÃßÁ¤ÇÑ´Ù¸é ±× ¿ÀÂ÷´Â ÃÖ¼Ò ¼ö %¿¡¼ ÃÖ´ë ¼ö½Ê%±îÁö ¹üÀ§ÀÎ °ÍÀ¸·Î ÆÄ¾ÇµÇ¾ú´Ù. |
|
| This study estimated the error involved in the areal average rainfall derived from incomplete radar information due to radar partial coverage of a basin or sub-basin. This study considers the Han-River Basin as an application example for the rainfall observation using the Ganghwa rain radar. Among the total of 20 mid-sized sub-basins of the Han-River Basin evaluated in this study, only five sub-basins are fully covered by the radar and three are totally uncovered. Remaining 12 sub-basins are partially covered by the radar to result in incomplete radar information available. When only partial radar information is available, the sampling error decreases proportional to the size of the radar coverage, which also varies depending on the number of clusters. Conditioned that the total area coverage remains the same, the sampling error decreases as the number of clusters increases. This study estimated the sampling error of the areal average rainfall of partially-covered mid-sized sub-basins of the Han- River Basin, and the results show that the sampling error could be at least several % to maximum tens % depending on the relative coverage area. |
| |
| Ű¿öµå |
| ·¹ÀÌ´õ °¿ì;ºÎºÐÀû °üÃø;¸éÀûÆò±Õ°¿ì;°üÃø¿ÀÂ÷;Radar Rainfall;Partial Coverage;Areal Average Rainfall;Sampling Error; |
| |
|
|
 |
|
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.41, no.5, 2008³â, pp.545-558
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200816863296524)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|