ATTENTION: The software behind KU ScholarWorks is being upgraded to a new version. Starting July 15th, users will not be able to log in to the system, add items, nor make any changes until the new version is in place at the end of July. Searching for articles and opening files will continue to work while the system is being updated. If you have any questions, please contact Marianne Reed at .

Show simple item record

dc.contributor.authorde Szoeke, Simon P.
dc.contributor.authorVerlinden, Kathryn L.
dc.contributor.authorYuter, Sandra E.
dc.contributor.authorMechem, David B.
dc.identifier.citationDe Szoeke, S. P., Verlinden, K. L., Yuter, S. E., & Mechem, D. B. (2016). The time scales of variability of marine low clouds. Journal of Climate, 29(18), 6463-6481.en_US
dc.descriptionPermission to use figures, tables, and brief excerpts from this work in scientific and educational works is hereby granted provided that the source is acknowledged. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act or that satisfies the conditions specified in Section 108 of the U.S. Copyright Act (17 USC §108) does not require the AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, requires written permission or a license from the AMS. All AMS journals and monograph publications are registered with the Copyright Clearance Center ( Questions about permission to use materials for which AMS holds the copyright can also be directed to the AMS Permissions Officer at Additional details are provided in the AMS Copyright Policy statement, available on the AMS website (
dc.description.abstractMultidecade global regressions of inversion strength, vertical velocity, and sea surface temperature (SST) on low cloud amount, from subdaily to multiyear time scales, refute the dominance of seasonal inversion strength on marine low cloud variability. Multiday low cloud variance averaged over the eastern Pacific and Atlantic stratocumulus regions [5 × 10−2 (cloud amount)2] is twice the subdaily variance and 5 times larger than the multimonth variance. The broad multiday band contains most (60%) of the variance, despite strong seasonal (annual) and diurnal spectral peaks. Multiday low cloud amount over the eastern tropical and midlatitude oceans is positively correlated to inversion strength, with a slope of 2%–5% K−1. Anecdotes show multiday low cloud and inversion strength anomalies propagate equatorward from midlatitudes. Previously shown correlations of low clouds to strong inversions and cool SST on monthly and longer time scales in the stratocumulus regions imply positive cloud-radiative feedbacks, with e-folding time scales of 300 days for SST and 14 days for atmospheric boundary layer temperature. On multimonth time scales, removing the effect of SST on low clouds reduces the low cloud amount explained by inversion strength by a factor of 3, but SST has a small effect at other time scales. Contrary to their positive correlation in the stratocumulus cloud decks, low clouds are anticorrelated to inversion strength over most of the tropics on daily and subdaily time scales.en_US
dc.publisherAmerican Meteorological Societyen_US
dc.rights© Copyright 2016/26/08 American Meteorological Society (AMS).en_US
dc.subjectAtm/Ocean Structure/ Phenomenaen_US
dc.subjectBoundary layeren_US
dc.subjectSea surface temperatureen_US
dc.subjectPhysical Meteorology and Climatologyen_US
dc.subjectAtmosphere-ocean interactionen_US
dc.subjectCloud coveren_US
dc.subjectMathematical and statistical techniquesen_US
dc.subjectTime seriesen_US
dc.titleThe Time Scales of Variability of Marine Low Cloudsen_US
kusw.kuauthorMechem, David B.
kusw.kudepartmentGeography & Atmospheric Scienceen_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US

Files in this item


This item appears in the following Collection(s)

Show simple item record