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摘要
This study revises Weare's latent heat parameterization scheme and conducts an associated theoretic analysis. The revised Weare's scheme is found to present potentially better results than Zebiak's scheme. The Zebiak-Cane coupled ocean-atmosphere model, initialized by the National Centers for Environmental Prediction and the National Center for Atmospheric Research (NCEP/NCAR) reanalysis of wind stress anomaly at 925 hPa, is referred to as the ZCW coupled model. The atmosphere models of the ZCW coupled model that use Zebiak's scheme and the revised Weare's scheme are referred to as the ZCW(0) and ZCW(N) atmosphere models, respectively. The coupled ocean-atmosphere models that use Zebiak's scheme and the revised Weare's scheme are referred to as the ZCW(0)and ZCW(N) coupled models, respectively. The simulations between the ZCW(0) and ZCW(N) atmosphere models and between the ZCW(0) and ZCW(N) coupled models are analyzed. The results include: (1) The evolution of heat, meridional wind and divergence anomalies simulated by similar ZCW(0) and ZCW(N) atmosphere models, although the magnitudes of the former are larger than those of the latter; (2) The prediction skill of the Nino3 index from 1982 to 1999 by the ZCW(N) coupled model shows improvement compared with those by the ZCW(0) coupled model; (3) The analysis of El Nino events in 1982/1983, 1986/1987, and 1997/1998 and La Nina events in 1984/1985, 1988/1989, and 1998/2000 suggests that the ZCW(N) coupled model is better than the ZCW(0) coupled model in predicting warm event evolution and cold event generation. The results also show the disadvantage of the ZCW(N) coupled model for predicting El Nino.
- 出版日期2010
- 单位中国气象局上海台风研究所; 南京信息工程大学
