Holographic measurements of inhomogeneous cloud mixing at the centimeter scale
Optical properties and precipitation efficiency of atmospheric clouds are largely determined by turbulent mixing with their environment. When cloud liquid water is reduced upon mixing, droplets may evaporate uniformly across the population or, in the other extreme, a subset of droplets may evaporate...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2015-10, Vol.350 (6256), p.87-90 |
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| container_title | Science (American Association for the Advancement of Science) |
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| creator | Beals, Matthew J. Fugal, Jacob P. Shaw, Raymond A. Lu, Jiang Spuler, Scott M. Stith, Jeffrey L. |
| description | Optical properties and precipitation efficiency of atmospheric clouds are largely determined by turbulent mixing with their environment. When cloud liquid water is reduced upon mixing, droplets may evaporate uniformly across the population or, in the other extreme, a subset of droplets may evaporate completely, leaving the remaining drops unaffected. Here, we use airborne holographic imaging to visualize the spatial structure and droplet size distribution at the smallest turbulent scales, thereby observing their response to entrainment and mixing with clear air. The measurements reveal that turbulent clouds are inhomogeneous, with sharp transitions between cloud and clear air properties persisting to dissipative scales ( |
| doi_str_mv | 10.1126/science.aab0751 |
| format | Article |
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| source | American Association for the Advancement of Science; Jstor Complete Legacy |
| subjects | Atmosphere Clouds Computational fluid dynamics Droplets Evaporation Fluctuation Imaging Turbulence Turbulent mixing |
| title | Holographic measurements of inhomogeneous cloud mixing at the centimeter scale |
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