【摘要】 本文着重讨论了为恰当定义热带风场的辐散分量,客观分析方案所应具备的基本条件,指出过去通行的分析方案在这方面的严重缺陷,并提出了一个改进方案.理想与实测资料的分析结果都表明,新的分析方案在保留分析流场的辐散分量与减小分析误差方面都有明显的效果.同时新的分析方案还提供了低纬度实施多变量分析的可能性,从而部分地缓解了低纬度观测资料不完整所造成的困难.更多还原

【Abstract】 This paper discusses the basic requirements for the objective analysis scheme to define the divergent component of wind in the tropics. It is indicated that with analytical schemes commonly used, the divergent component can not be properly defined. To overcome the defiency, a new analytical scheme is proposed. Both ideal and real data experiments show that the new scheme can retain the divergent component and reduce the analysis error. The new scheme also provides a way to perform multi-variable analysis in low latitude regions. With this scheme, difficulties caused by lack of observational data in the tropics will be alleviated.更多还原