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Record 1 of 19984
Entrainment instability and vertical motion as causes of stratocumulus breakup
External Online Source: doi:10.1256/smsqj.49605
Author and Affiliation:
Weaver, C. J.(Colorado State University, Fort Collins, United States)
Pearson, R., Jr.(NASA Ames Research Center, Moffett Field, CA)
Abstract: Entrainment instability is thought to be a cause of stratocumulus breakup. At the interface between the cloud and the overlying air, mixtures may form which are negatively buoyant because of cloud droplet evaporation. Quantities devised to predict breakup are obtained from aircraft observations and are tested against cloud observations from satellite. Often, the parameters indicate that breakup should occur but the clouds remain, sometimes for several days. One possible explanation for breakup is vertical motion from passing synoptic cyclones. Several cases suggest that breakup is associated with the downward vertical motion from the cold air advected behind an eastward moving cyclone.
Publication Date: Oct 01, 1990
Document ID:
19910044082
(Acquired Nov 28, 1995)
Accession Number: 91A28705
Subject Category: METEOROLOGY AND CLIMATOLOGY
Document Type: Journal Article
Publication Information: Royal Meteorological Society, Quarterly Journal (ISSN 0035-9009); 116; 1359-138
Publisher Information: United Kingdom
Contract/Grant/Task Num: NSF ATM-81-14575; NSF ATM-83-11405; NSF ATM-86-14956; NSF ATM-83-12615
Financial Sponsor: NASA; United States
Organization Source: Colorado State Univ.; Fort Collins, CO, United States
NASA Ames Research Center; Moffett Field, CA, United States
Description: 30p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: CYCLONES; ENTRAINMENT; MARINE ENVIRONMENTS; STRATOCUMULUS CLOUDS; VERTICAL MOTION; ATMOSPHERIC SOUNDING; GOES SATELLITES; PHOTOINTERPRETATION; SATELLITE IMAGERY; SYNOPTIC METEOROLOGY
Imprint And Other Notes: Royal Meteorological Society, Quarterly Journal (ISSN 0035-9009), vol. 116, Oct. 1990, p. 1359-1388.
Availability Source: Other Sources
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