Measuring ice- and liquid-water properties in mixed-phase cloud layers at the Leipzig Cloudnet station

被引：71

作者：

Buehl, Johannes ^{[1
]}

Seifert, Patric ^{[1
]}

Myagkov, Alexander ^{[1
]}

Ansmann, Albert ^{[1
]}

机构：

[1] Leibniz Inst Tropospher Res TROPOS, Permoserstr 15, D-04318 Leipzig, Germany

来源：

ATMOSPHERIC CHEMISTRY AND PHYSICS | 2016年 / 16卷 / 16期

关键词：

GROUND-BASED OBSERVATIONS; RADAR REFLECTIVITY; MICROWAVE RADIOMETER; LIDAR POLLY(XT); A-TRAIN; POLARIZATION; TEMPERATURE; CRYSTALS; DEPOLARIZATION; RETRIEVALS;

D O I：

10.5194/acp-16-10609-2016

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

An analysis of the Cloudnet data set collected at Leipzig, Germany, with special focus on mixed-phase layered clouds is presented. We derive liquid-and ice-water content together with vertical motions of ice particles falling through cloud base. The ice mass flux is calculated by combining measurements of ice-water content and particle Doppler velocity. The efficiency of heterogeneous ice formation and its impact on cloud lifetime is estimated for different cloud-top temperatures by relating the ice mass flux and the liquid-water content at cloud top. Cloud radar measurements of polarization and Doppler velocity indicate that ice crystals formed in mixed-phase cloud layers with a geometrical thickness of less than 350 m are mostly pristine when they fall out of the cloud.

引用

页码：10609 / 10620

页数：12

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