Tropical Cyclones (IMAGE)
Caption
An illustration of two ensemble simulated tropical cyclone sets undergoing different timing for RI onset. For the early RI onset member, the minimal ventilation, undiluted clouds and moisture from the downshear quadrant are then wrapped inwards to the upshear left quadrant to form the deep convections (left-hand panel). For the late RI onset member, these processes are inhibited by stronger vertical wind shear, initially resulting in poor vertical coherence of the circulation, lesser moisture and larger ventilation (right-hand panel).
Credit
Xun Li
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