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contributor authorGerber, H.
contributor authorJensen, J. B.
contributor authorDavis, A. B.
contributor authorMarshak, A.
contributor authorWiscombe, W. J.
date accessioned2017-06-09T14:36:43Z
date available2017-06-09T14:36:43Z
date copyright2001/03/01
date issued2001
identifier issn0022-4928
identifier otherams-22786.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4159274
description abstractAircraft measurements of liquid water content (LWC) made at sampling frequencies of 1 and 2 kHz with a particle volume monitor (PVM) probe from horizontal traverses in stratocumulus clouds during the Southern Ocean Cloud Experiment and cumulus clouds during the Small Cumulus Microphysics Study are described. The spectral density of the LWC measurements is calculated and compared to the ?5/3 scaling law. The effect of PVM sampling noise is found to be small in most cases. Most measurements follow approximately the ?5/3 law until cloud scales decrease below about 5 m in length. Below this length LWC variance can exceed that predicted by the ?5/3 law. It is suggested that the enhanced LWC variance at small scales is related to entrainment of environmental air into the clouds, which changes primarily the droplet concentration.
publisherAmerican Meteorological Society
titleSpectral Density of Cloud Liquid Water Content at High Frequencies
typeJournal Paper
journal volume58
journal issue5
journal titleJournal of the Atmospheric Sciences
identifier doi10.1175/1520-0469(2001)058<0497:SDOCLW>2.0.CO;2
journal fristpage497
journal lastpage503
treeJournal of the Atmospheric Sciences:;2001:;Volume( 058 ):;issue: 005
contenttypeFulltext


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