Fig. 10
(a–b) Vertical distribution of moisture flux at different levels (i.e., 300 hPa–500 hPa, 500 hPa–700 hPa, 700 hPa–surface) for the four types of patterns. Arrows represent the moisture flux magnitude (unit: 10⁻3kg (m s)⁻ 1) through the four boundaries of NX shown in the black boxes in Fig. 2c–d. Red arrows indicate inflow, blue arrows indicate outflow of moisture flux, and the numbers in bold larger fonts near the upper right corner of each box represent the net moisture flux at each level.
