Observational Study on the Characteristics of the Boundary Layer during Changes in the Intensity of Tropical Cyclones Landing in Guangdong, China

Figure 3

Aircraft observation results at different observation stages for the No. 1604 “Nida” cyclone. (a) Vertical distribution of the tangential wind. (b) Vertical distribution of the radial wind. (c) Vertical distribution of the angular momentum. (d) Distributions of the theoretically calculated gradient wind and radial wind as the radius changes.

(a)

(b)

(c)

(d)