이중편파레이더를 이용한 밝은 띠 연구

• 영문명: A Study on the Bright Band Using Dual Polarization Radar
• 발행기관: 조선대학교 교과교육연구소
• 저자명: 전대훈(Dae-Hun Jeon) 강인숙(In-Sook Kang) 정연앙(Yun-Ang Chung)
• 간행물 정보: 『미래교육현장연구』교과교육연구 32권 1호, 43~56쪽, 전체 14쪽
• 주제분류: 사회과학 > 교육학
• 파일형태: PDF
• 발행일자: 2011.04.30

영문 초록

A bright band means that the intensity of radar echo is more exaggeratedly displayed than the real amount of rain due to the permittivity difference of raindrop at the altitude under the layer of 0℃ (melting layer). When a bright band appears like as a more exaggerated echo, the value of the forecast amount of precipitation is overestimated than a real one. But even though the amount of precipitation is zero or less than 1.0mm in the regions where the bright band shows up, the error of forecast has occurred. The new method to distinguish between bright bands by making use of the radar image materials of the duel polarization radar installed at the weather radar research center has been developed. In the case studies, there were difficult to make a clear distinction of the altitudes on which bright bands appeared on the ZDR imagery, and the scope with a negative (-) value showed up on the very upper altitude of the altitude on which bright bands appeared. In the RHOHV imagery, while the correlation of the altitude on which bright bands appeared was lower relatively. In the KDP imagery, its value of the altitude on which bright bands appeared was higher in comparison with thatt of other altitudes, and the value with the negative (-) value turned up on the upper and lower altitude of the altitude on which bright bands appeared in both altitudes. Finally, in the PID imagery, the type of raindrop consisting of the altitudes on which bright bands appeared turned up as a form of grain, small hail, and hail. Of all the image materials used in the analysis work, bright bands showed clearly up in the RHOHV and KDP images.

목차

I. 서론

II. 자료선정 및 분석방법

Ⅲ. 사례분석

Ⅳ. 결 론

키워드

permittivity bright band dual polarization radar echo intensity