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NTIS 바로가기대기 = Atmosphere, v.30 no.1, 2020년, pp.75 - 89
엄준식 (부산대학교 대기환경과학과)
Current in-situ airborne probes that measure the sizes of ice crystals smaller than 50 ㎛ are based on the concept that the measured intensity of light scattered by a particle in the forward and/or backward direction can be converted to particle size. The relationship between particle size and...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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얼음상 구름의 직접 관측에 사용되는 것과 그 이유는? | 얼음상 구름은 상대적으로 높은 고도에서 존재하기 때문에 직접(in-situ) 관측에는 항공기가 주로 사용된다. 얼음상 구름의 기본적인 특성을 이해하기 위한 가장 기본이 되는 관측은 크기 분포(size distribution) 관측이다. | |
얼음상 구름(빙운)의 특징은? | 구름은 열역학 상(phase)에 따라 액체상(liquid phase), 혼합상(mixed phase), 얼음상(ice phase) 구름으로 구분한다. 구형의 액체상 구름입자(cloud droplet)로 구성된 액체상 구름(물구름)과는 다르게 얼음상 구름(빙운)은 다양한 모양(habit)과 크기의 빙정(ice crystal)으로 구성되어 있다(Bailey andHallett, 2004; Um and McFarquhar, 2011; Um et al.,2015; Lawson et al. | |
혼합상 구름과 얼음상 구름의 미세물리 특성과 복사 특성을 계산하는 것이 어려운 이유는? | 빙정이 포함되어 있는 혼합상 구름과 얼음상 구름의 미세물리 특성(microphysical properties)과 복사 특성(radiative properties)를 계산하는 것은 액체상 구름에 비해 상대적으로 어렵다. 이는 빙정이 다양한 종류의 비구형(non-spherical) 모양과 매우 넓은 크기 분포를 갖기 때문이다. 얼음상 구름은 지구 표면적을 최소 17% 덮으며 이는 열대지역에 대해서는 60%에 육박한다(Sassen et al. |
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