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Impacts of Air-Sea Energy Transfer on Typhoon Modelling
Advances in Meteorology ( IF 2.1 ) Pub Date : 2021-04-15 , DOI: 10.1155/2021/5567717
Difu Sun 1, 2 , Junqiang Song 1, 2 , Hongze Leng 1, 2 , Kaijun Ren 1, 2 , Xiaoyong Li 1, 2
Affiliation  

The Coupled Ocean-Atmosphere-Wave-Sediment Transport model has been used to simulate Super Typhoon Yutu (2018). The impacts of four momentum transfer parameterization schemes (COARE, TY, OT, and DN) and three heat transfer parameterization schemes (COARE, GR, and ZK) on typhoon modelling have been studied by means of the track, intensity, and radial structure of typhoon. The results show that the track of Yutu is not sensitive to the choice of parameterization scheme, while the combinations of different parameterization schemes affect the intensity of Yutu. Among the four momentum flux parameterization schemes, three wave-state-based schemes (TY, OT, and DN) provide better intensity results than the wind-speed-based COARE scheme, but the differences between the three wave-state-based schemes are not obvious. Among the three heat flux parameterization schemes, the results of the GR scheme are slightly better than those of the COARE scheme, and both the GR and COARE schemes are significantly better than the ZK scheme, from which the intensity of Yutu is underpredicted obviously. The influence of the combination of different parameterization schemes on the intensity of the typhoon is also reflected in the radial structure of the typhoon, and the radial structure of the typhoon simulated by experiments with stronger typhoon intensity also develops faster. Differences of intensity between experiments are due mainly to the differences in sea surface heat flux, the enthalpy transferred from sea surface to the atmosphere has a significant impact on the bottom atmosphere wind field, and there is a strong correspondence between the distribution of enthalpy flux and the bottom wind field.

中文翻译:

海气能量转移对台风建模的影响

海洋-大气-波浪-泥沙耦合输运模型已被用于模拟超级台风雨图(2018年)。借助轨道的轨迹,强度和径向结构,研究了四种动量传递参数化方案(COARE,TY,OT和DN)和三种传热参数化方案(COARE,GR和ZK)对台风建模的影响。台风。结果表明,鱼图轨迹对参数化方案的选择不敏感,而不同参数化方案的组合会影响鱼图的强度。在四种动量通量参数化方案中,三种基于波浪状态的方案(TY,OT和DN)比基于风速的COARE方案提供更好的强度结果,但是这三种基于波浪状态的方案之间的区别是不明显。在这三种热通量参数化方案中,GR方案的结果比COARE方案的结果略好,并且GR和COARE方案均比ZK方案的结果好,从中,Yutu的强度明显不足。台风的径向结构也反映了不同参数化方案的组合对台风强度的影响,台风强度较强的实验模拟的台风径向结构也发展得更快。实验之间强度的差异主要是由于海面热通量的差异,从海面转移到大气的焓对底部大气风场有重大影响,
更新日期:2021-04-15
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