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frontogenesis n.【氣象學】鋒生(作用)。

frontolysis

Analyzing the physics structure of vorticity , divergence , vertical velocity , frontogenesis “ function , apparent heat source and apparent moist sink etc . indicated the physics fields are favorable for the occurance of the heavy rain over changjiang - huaihe river basin where the physics values are well according to the heavy rainstorm positions ; the low level jet is closely subject to the moisture and the coupled system of the low and the upper level jetstreams induced the strongly “ ascending motion ; the intensity of the frontogenesis varies with the development of the rainfall system and reacts the rainfall intensity 主要分析了這次過程中的多種物理量,包括渦度、散度、垂直速度、鋒生函數、視熱源、視水汽匯等,對這一暴雨過程有了比較系統的認識。結果表明:在江淮流域存在著有利于發生暴雨的物理量場配置,渦度、散度、垂直速度等物理量,與暴雨的落區都很吻合的;低空急流的產生不僅有利于水汽的輸送,而且高低空急流的耦合造成了有利于強上升運動的配置;鋒生強度隨著降水系統的發展變化,并影響降水強度。

Geostrophic adjustment and frontogenesis 地轉適應與鋒生