Abstract: Typhoon center location hasthe problem of low accuracy in formation and dissipation period. For this problem, a novel method based on cloud motion wind is proposed using infrared remote sensing data from FY-2 geostationary meteorology satellite. First, pyramid decomposition is performed on remote sensing infrared sequence images. Second, the optical flow model with weighted median filtering is developed to build cloud motion wind field. Third, the density matrix method is used to calculate typhoon center. Rammasun and Halong that formed in the Pacific Northwest in 2014 are selected for case study. Results show that the method is accurate for the whole life cycle of typhoon.

Key words: FY-2 remote sensing data, typhoon, center location, cloud motion wind, density matrix