By the contrast results on the isentropic surface and the corresponding isobaric surface, it is inferred that the analyses of dry intrusion on both surfaces are consistent with each other.

• 通过等熵面与相应气压层的对比分析，发现等熵和等压面上的分析比较一致，等熵面上的干侵入在高层比低层强度大。