On the Interannual Variability of Rainfall and Cyclone Activity in the Tropical Western North Pacific.
Technical note 1959-1973,
FLEET WEATHER CENTRAL/JOINT TYPHOON WARNING CENTER FPO SAN FRANCISCO 96630
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Rainfall amounts at various stations in the tropical North Pacific during the dry season January-April were correlated with the number of tropical cyclones occurring in the western North Pacific areas during the same year from 1959 to 1973. Correlations were made for each rainfall station individually and for various group of stations. Results indicated that the best correlation was shown with rainfall on Guam, however, the relationship was poor correlation coefficient of 0.24 and not sufficient for long-range forecasting purposes. The study also provides a survey of various articles relating tropical circulation patterns and rainfall to sea surface temperature anomalies and other large scale influences. Author