摘要: We study photospheric plasma flows in an active region NOAA 8375, by using uninterrupted high-resolution SOHO/MDI observations (137 intensity images, 44 hours of observations). The consists a stable large spot and many small spots pores. Analyzing horizontal flow maps, obtained with local correlation tracking technique, we found system persistent existing the region. start on either side sunspot extend over 100′′ to east. Our measurements show that speed sunspots pores, averaged hours, was about 100 m s−1, which corresponds root-mean-square longitudinal drifts 0.67°–0.76° day−1. conclude these large-scale are due faster proper motion relative ambient plasma. suggest may be good carrier transport magnetic flux from eroding into outer part
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