ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
A Synoptic Model for Regional Severe Precipitation Forecast in Dry Season in Sanxia on the Changjiang
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Abstract:
Using the daily date of precipitation of six stations in Sanxia area during October to January from 1961 to 1994,the days of regional severe precipitation in the area are defined. The reasons, the impacting systems and the features of general circulation for regional severe precipitation in the area are analysed by using the historic synoptic charts during the same period. The features of general circulation of two ridges and two troughs model during the regional severe precipitation in Sanxia area are summarized. A synoptic model for forecasting regional severe precipitation in dry season in Sanxia area on the Changjiang is given. The predictive indexes of the circulation pattern is drawn. The operational experiment result shows that the two ridges and two troughs model and its predictive indexes are of referential value to forecast the regional severe precipitation in dry season in Sanxia on the Changjiang.
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