Since the 1990s, the physical mechanism of tropical cyclone intensity change has been a forward topic of typhoon dynamics.
二十世纪九十年代以来，热带气旋强度变化的物理机制成为国际台风动力学的一个研究热点。
In this paper the parameter and some physical factors, which reflect the intensity change of tropical cyclone, are derived from dynamical and thermodynamics equations.
本文从动力-热力学方程出发。得到反映热带气旋强度变化的参数和几个物理因子。
When the tropical cyclone moves in low latitudes, the cold air from higher latitudes can modulate the intensity of the tropical cyclones.
当热带气旋仍在热带海洋上，冷空气与热带气旋相向而行，气压梯度增强可明显加强热带气旋强度。
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