Droplet Growth in Warm Water Clouds Observed by the A-Train. Part II: A Multisensor View
Droplet Growth in Warm Water Clouds Observed by the A-Train. Part II: A Multisensor View
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DOI：
10.1175/2010jas3276.1
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发表时间：
2010-06
影响因子：
3.1
通讯作者：
T. Nakajima;Kentaroh Suzuki;G. Stephens
中科院分区：
文献类型：
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作者：
T. Nakajima;Kentaroh Suzuki;G. Stephens
摘要根据水/中分辨率成像光谱仪(MODIS)的云粒大小观测和云卫星/云廓线雷达(CPR)对暖水云的观测，推断了水流星液滴的生长过程。这项研究支持一篇相关论文(第I部分)的推论：(I)从3.7-μm通道(R37)提取的云滴半径受云顶小液滴的存在的影响；(Ii)从1.6-(R16)和2.1-μm(R21)通道获得的云滴半径包含关于云中更深处的毛毛雨液滴以及云滴的信息。当与从MODIS数据中提取的CDR匹配时，这种解释与雷达反射率是一致的。研究表明，R16或R21从云到雨，从小云滴(10-12μm)到细雨(CDR大于14μm)再到雨(CDR大于20μm)的演化过程是单调的。因此，R。
Abstract Hydrometeor droplet growth processes are inferred from a combination of Aqua/Moderate Resolution Imaging Spectroradiometer (MODIS) cloud particle size observations and CloudSat/Cloud Profiling Radar (CPR) observations of warm water clouds. This study supports the inferences of a related paper (Part I) (i) that MODIS-retrieved cloud droplet radii (CDR) from the 3.7-μm channel (R37) are influenced by the existence of small droplets at cloud top and (ii) that the CDR obtained from 1.6- (R16) and 2.1-μm (R21) channels contain information about drizzle droplets deeper into the cloud as well as cloud droplets. This interpretation is shown to be consistent with radar reflectivities when matched to CDR that were retrieved from MODIS data. This study demonstrates that the droplet growth process from cloud to rain via drizzle proceeds monotonically with the evolution of R16 or R21 from small cloud drops (on the order of 10–12 μm) to drizzle (CDR greater than 14 μm) to rain (CDR greater than 20 μm). Thus, R...