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Çѱ¹¼öÀÚ¿øÇÐȸ / v.42, no.8, 2009³â, pp.607-617
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·¹ÀÌ´õ ¹Ý»çµµ ´©Àû ¹æ¹ýÀ» ÀÌ¿ëÇÑ ÁöÇü¿¡ ÀÇÇÑ ºÎºÐÂ÷Æó¿µ¿ªÀÇ ·¹ÀÌ´õ ¹Ý»çµµ º¸Á¤
( Correction of Radar Reflectivity over Beam Blocking Area by Accumulated Radar Reflectivity ) |
| ¹Ú¼ºÈ¯;Á¤¼ºÈ;ÀÌÁ¤ÈÆ;±è°æÀÍ; °æºÏ´ëÇб³ ´ëÇпø õ¹®´ë±â°úÇаú;°æºÏ´ëÇб³ ´ëÇпø õ¹®´ë±â°úÇаú;ÄÉÀÌ¿þ´õ(ÁÖ) WIIS °³¹ßÆÀ;°æºÏ´ëÇб³ ÀÚ¿¬°úÇдëÇРõ¹®´ë±â°úÇаú;
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| Radar beam blocking which is partially or entirely interrupted by obstacles like a mountain causes underestimation of the rainfall. In this paper, partially blocked radar reflectivity is retrieved using the ARM(Accumulated Reflectivity Map). ARM is made by accumulation of the radar reflectivity and very useful product to analyze the beam blockage. The blockage correcting map could be obtained by assuming the spatially uniform reflectivity field in the ARM. This method is applied to the cases of typhoon and Changma, and we obtain the MFE(Mean Fractional Error) from two radar data, the one is objective radar data which is affected by blockage and the other is comparative radar data which is not affected by blockage. Before blocking correction, MFE is 20-35%. However, after correction, MFE decreases to 7-10%. |
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| Ű¿öµå |
| ºö Â÷Æó;´©Àû¹Ý»çµµ;Â÷Æóº¸Á¤;beam blocking;accumulated reflectivity;blocking correction; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.42, no.8, 2009³â, pp.607-617
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200925836515237)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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