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Cloud cover analysis with Arctic Advanced Very High Resolution Radiometer data. II - Classification with spectral and textural measuresThe spectral and textural characteristics of polar clouds and surfaces for a 7-day summer series of AVHRR data in two Arctic locations are examined, and the results used in the development of a cloud classification procedure for polar satellite data. Since spatial coherence and texture sensitivity tests indicate that a joint spectral-textural analysis based on the same cell size is inappropriate, cloud detection with AVHRR data and surface identification with passive microwave data are first done on the pixel level as described by Key and Barry (1989). Next, cloud patterns within 250-sq-km regions are described, then the spectral and local textural characteristics of cloud patterns in the image are determined and each cloud pixel is classified by statistical methods. Results indicate that both spectral and textural features can be utilized in the classification of cloudy pixels, although spectral features are most useful for the discrimination between cloud classes.
Document ID
19900048765
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Key, J.
(Cooperative Institute for Research in Environmental Sciences Boulder, CO, United States)
Date Acquired
August 14, 2013
Publication Date
May 20, 1990
Publication Information
Publication: Journal of Geophysical Research
Volume: 95
ISSN: 0148-0227
Subject Category
Meteorology And Climatology
Accession Number
90A35820
Funding Number(s)
CONTRACT_GRANT: NAG5-898
Distribution Limits
Public
Copyright
Other

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