A baroclinic typhoon model with a moving multi-nested grid and variational adjustment initialization Ⅱ. Forecast experiments

Wu Huiding; Yang Xuelian; Bai Shan; Li Guoqing

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Article Navigation > Acta Oceanologica Sinica > 1999 > (4): 477-493

Wu Huiding, Yang Xuelian, Bai Shan, Li Guoqing. A baroclinic typhoon model with a moving multi-nested grid and variational adjustment initialization Ⅱ. Forecast experiments[J]. Acta Oceanologica Sinica, 1999, (4): 477-493.

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A baroclinic typhoon model with a moving multi-nested grid and variational adjustment initialization Ⅱ. Forecast experiments

1.
National Marine Environmental Forecasting Centre, Beijing 100081, China
2.
Department of Physics and Physical Oceanography, Memorial University of Newfoundland, St. John's, NF, A1B 3X7, Canada

Received Date: 1997-01-05
Rev Recd Date: 1998-02-24

Abstract

Abstract

A 3-dimensional baroclinic typhoon model with a moving multi-nested grid and its initialization are described first.Prediction results are improved by using a simple but effective data assimilation method in which the initial field is adjusted by the sixth hour's typhoon report and the weak-constraint variational principle.Finally some forecyst examples made by this typhoon model are given.
- Baroclinic typhoon model,
- data assimilation,
- variational adjustment,
- numerical typhoon forecast,
- multinested grid