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Çѱ¹¼öÀÚ¿øÇÐȸ / v.35, no.1, 2002³â, pp.25-36
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WPMM ¹æ¹ýÀ» ÀÌ¿ëÇÑ ·¹ÀÌ´õ °¼ö·® ÃßÁ¤ : 1. 1998³â ¿©¸§Ã¶ °ü¾Ç»ê DWSR-88C¸¦ À§ÇÑ Ze-R °ü°è½Ä »êÃâ
( Radar Rainfall Estimation Using Window Probability Matching Method : 1. Establishment of Ze-R Relationship for Kwanak Mt, DWSR-88C at Summer, 1998 ) |
| ±èÈ¿°æ;À̵¿ÀÎ;À¯Ã¶È¯;±Ç¿øÅÂ; ºÎ°æ´ëÇб³ ȯ°æ´ë±â°úÇаú;ºÎ°æ´ëÇб³ ȯ°æ´ë±â°úÇаú;ºÎ°æ´ëÇб³ ȯ°æ´ë±â°úÇаú;±â»ó¿¬±¸¼Ò ±âÈÄ¿¬±¸½Ç;
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| 1998³â ¿©¸§Ã¶, ±â»ó·¹ÀÌ´õ¿Í ·¹ÀÌ´õ ÁÖÀ§ÀÇ °í¹Ðµµ ¿ì·®°è °üÃøÀڷḦ ÀÌ¿ëÇÏ¿© $Z_{e}-R$ °ü°è½ÄÀ» »êÃâÇϱâ À§ÇÏ¿© °ü¾Ç»ê ·¹ÀÌ´õ ÀÚ·á¿Í °¿ì°µµ ÀÚ·áÀÇ È®·ü¹ÐµµÇÔ¼ö¸¦ ±¸ÇØ È®·üÀÌ °°Àº ÁöÁ¡À» ¸ÅÄ¡½ÃŰ´Â Window Probability Matching Method(WPMM)¶ó´Â Åë°èÀû ¹æ¹ýÀ» »ç¿ëÇÏ¿´´Ù. ·¹ÀÌ´õ ¹Ý»çµµÀÇ È®·ü ºÐÆ÷´Â ¾à 15dBZ¿¡¼ °¡Àå ¸¹Àº ºóµµ ºÐÆ÷¸¦ º¸¿´°í °¿ì°µµÀÇ È®·üºÐÆ÷´Â ´ëºÎºÐÀÇ ¿µ¿ª¿¡¼ ½Ã°£´ç 10mm ÀÌÇÏÀÇ ºñ°¡ ³»¸®´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. WPMMÀ» ÀÌ¿ëÇÑ $Z_{e}-R$ °ü°è½ÄÀº ·Î±× ÁÂÇ¥°è¿¡¼ °î¼±ÇüÀÇ ºÐÆ÷¸¦ °¡Áö°í ÀÖ¾î Á÷¼±ÇüÀÇ ºÐÆ÷¸¦ °¡Áö´Â ¸è±Þ¼ö ÇüÅÂÀÇ °ü°è½Ä¿¡ ºñÇØ ¹Ý»çµµ¸¦ °¿ì·®À¸·Î ÀüȯÇϴµ¥ ÀÖ¾î ´õ ³ªÀº °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ƯÈ÷, 3°³¿ù µ¿¾ÈÀÇ ´©Àû °¼ö·® »êÃâ½Ã $Z=200R^{1.6}$ ½ÄÀº ½ÇÁ¦ ¿ì·®°è °¼ö·®ÀÇ 44%¸¸À» ÃßÁ¤Çϴµ¥ ¹ÝÇØ WPMMÀÇ °æ¿ì´Â ½ÇÁ¦ °¼ö·®ÀÇ 80%±îÁö ±ÙÁ¢ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. |
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| Window Probability Matching Method(WPMM) is achieved by matching identical probability density of rain intensities and radar reflectivities taken only from small window centered about the gage. The equation of $Z_{e}-R$ relationship is obtained and compared with data between a DWSR-88C radar and high density rain gage networks within 150km from radar site in summer season, 1998. The probability density of radar effective reflectivity is distributed with high frequency near 15dBZ. The frequency distribution of rain intensities shows that rain intensity is lower than 10mm/hr in most part of radar coverage area. As the result of $Z_{e}-R$ relationship using WPMM, curved line has shown to the log scale spatially and it can be explained more flexible than any straight-line power laws at the transformation to the rainfall amount from $Z_e$ value. During 3 months, total radar cumulative rainfall amount estimated by $Z=200R^{1.6}$ and WPMM relationships are 44 and 80 percentages of total raingage amount, respectively. Therefore, $Z_{e}-R$ relationships by WPMM may be widely needed a statistical method for the computation of accumulated precipitation. |
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| Ű¿öµå |
| ·¹ÀÌ´õ °¿ì·®;$Z_{e}-R$ °ü°è½Ä;È®·ü ¹Ðµµ ÇÔ¼ö;Radar rainfall;$Z_{e}-R$ relation;Probability Density Function;WPMM; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.35, no.1, 2002³â, pp.25-36
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211920932711)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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