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

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 measurem...

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Bibliographic Details
Published inAtmospheric chemistry and physics Vol. 16; no. 16; pp. 10609 - 10620
Main Authors Bühl, Johannes, Seifert, Patric, Myagkov, Alexander, Ansmann, Albert
Format Journal Article
LanguageEnglish
Published Katlenburg-Lindau Copernicus GmbH 26.08.2016
Copernicus Publications
Subjects
Aerosols
Aircraft
Algorithms
Analysis
Atmosphere
Automation
Classification schemes
Cloud formation
Clouds
Clouds (Meteorology)
Consortia
Crystals
Datasets
Doppler sonar
Humidity
Ice
Ice crystals
Ice formation
Ice particles
Laboratories
Mass flux
Measurement
Moisture content
Radar
Radar measurement
Radar systems
Studies
Temperature
Velocity
Water content
Water properties
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Summary: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.
ISSN:1680-7324
1680-7316
1680-7324
DOI:10.5194/acp-16-10609-2016