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Cloud and convection frequencies over the southeast United States as related to small-scale geographic featuresBased on relatively high spatial and temporal resolution satelite data collected at 0700 CST and at each hour from 1000 CST to 1700 CST during the summer of 1986, cloud and convection variations over the area from Mississippi east to Georgia and from the Gulf of Mexico north to Tennessee are discussed. The data analyses show an average maximum cloud frequency over the land areas at 1400 local time and a maximum of deep convection one hour later. Both cloudiness and deep convection are found to be at a maximum during the nocturnal hours over the Gulf of Mexico. Cloud frequency shows a strong relationship to small terrain features. Small fresh water bodies have cloud minima relative to the surroundings in the afternoon hours. Higher, steep terrain shows cloud maxima and the adjacent lower terrain exhibits afternoon cloud minima due to a divergence of mountain breeze caused by the valley.
Document ID
19910031501
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Gibson, Harold M.
(Colorado State Univ. Fort Collins, CO, United States)
Vonder Haar, Thomas H.
(Colorado State University Fort Collins, United States)
Date Acquired
August 15, 2013
Publication Date
October 1, 1990
Publication Information
Publication: Monthly Weather Review
Volume: 118
ISSN: 0027-0644
Subject Category
Meteorology And Climatology
Accession Number
91A16124
Funding Number(s)
CONTRACT_GRANT: NAS8-36472
CONTRACT_GRANT: NOAA-NA-85RAH05045
CONTRACT_GRANT: DAAL03-86-K-0175
Distribution Limits
Public
Copyright
Other

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