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Variability of the sea surface temperature obtained by the statistical analysis of AVHRR imagery
Authors:Yutaka Isoda  Sei-ichi Saitoh
Institution:(1) Department of Ocean Engineering, Ehime University, Bunkyo 3, 790 Matsuyama, Japan;(2) Research Institute, Japan Weather Association, Kaiji Center Bldg., 5, 4-chome, Kojimachi, Chiyoda-ku, 102 Tokyo, Japan
Abstract:A simple statistical method based on arithmetic mean and corresponding variance is proposed for analysis of a time series of NOAA-8 satellite Advanced Very High Resolution Radiometer (AVHRR) images. We focused on the characteristics of temporal and spatial variabilities of sea surface temperature depending on mesh sizes used for the statistics. By applying this method to several images of the south Japan Sea in spring of 1984, we could clarify some natures of eddies which cannot be recognized only by one image. They include life time and spatial scale of eddies.
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