Figure 4
From: On the mechanisms of the recurvature of super typhoon Megi

Temperature differences (shaded, K) between each sensitive experiment and the control run (the former minus the latter) and the corresponding thermal winds (vector, m s−1 Pa−1) calculated using Eq. (1) at 900-hPa at initial time (0000UTC 18 Oct. 2010).
(a), sen_−1.5. (b), sen_−1.0. (c), sen_1.0. (d), sen_1.5. Thermal wind larger than 2 × 10−4 m s−1 Pa−1 are not shown since they are mostly attributed to the discontinuity of temperature modification. These figures were drawn using GrADS.