Observations of Supercooled Raindrops in New Mexico Summertime Cumuli

Observations of Supercooled Raindrops in New Mexico Summertime Cumuli
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新墨西哥州夏季积云过冷雨滴的观测

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发表时间：
1997
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影响因子：
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通讯作者：
J. Latham
J. Latham
中科院分区：
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文献类型：
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作者：
A. Blyth;R. Benestad;P. Krehbiel;J. Latham

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1987年NCAR King Air飞机和1993年新墨西哥矿业和技术研究所双偏振雷达的观测显示，在新墨西哥的一些夏季积云中存在过冷雨滴。在雷达数据的情况下，过冷液滴的证据来自于一列增强的ZDR，延伸到远高于0°C的水平。现场资料表明，当云底温度高于7℃左右，云深大于2.5 km左右时，出现过冷雨滴。
Abstract Observations made in 1987 with the NCAR King Air aircraft and in 1993 with the New Mexico Institute of Mining and Technology dual-polarization radar have revealed the presence of supercooled raindrops in some New Mexico summertime cumulus clouds. In the case of the radar data, the evidence for the supercooled drops came from a column of enhanced ZDR that extended well above the 0°C level. The in situ data indicated that the supercooled raindrops were observed when cloud base was warmer than about 7°C and the depth of the cloud was greater than about 2.5 km.