Application of Multiple Wind Retrieval Algorithms in Nowcasting
AbstractMultiple wind retrieval algorithms are performed to retrieve wind fields, based on which radar reflectivity is extrapolated to implement nowcasting. The frequently used nowcasting algorithm COTREC (continuity of tracking radar echo by correlation), based on the reflectivity and wind retrieval algorithm GVAD (gradient velocity azimuth display), based on radial velocity are used. The wind fields retrieved by the two methods are taken as motion vectors to give a 60-min forecast of radar reflectivity. Comparison analysis on precipitation events shows that GVAD can be used in operational nowcasting as COTREC performs and for stable precipitation duration, COTREC gives better nowcasting results than GVAD, while, for evolving precipitation duration, GVAD gives better nowcasting results than COTREC. View Full-Text
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Li, N.; Wei, M.; Niu, B.; Pan, J.; Zhang, W.; Guo, W. Application of Multiple Wind Retrieval Algorithms in Nowcasting. Atmosphere 2015, 6, 834-849.
Li N, Wei M, Niu B, Pan J, Zhang W, Guo W. Application of Multiple Wind Retrieval Algorithms in Nowcasting. Atmosphere. 2015; 6(6):834-849.Chicago/Turabian Style
Li, Nan; Wei, Ming; Niu, Ben; Pan, Jiawen; Zhang, Wengang; Guo, Wei. 2015. "Application of Multiple Wind Retrieval Algorithms in Nowcasting." Atmosphere 6, no. 6: 834-849.