Research Article
Analysis of the Anomalous Signals near the Tropopause before the Overshooting Convective System Onset over the Tibetan Plateau
Figure 8
The composites of longitude-pressure cross section of vertical velocity (units: 10−2 Pa/s, color contours) and potential temperature (units: K, black lines, contour interval: 5 K) fields at 34°N for the (a) 7th day, (b) 6th day, (c) 5th day, (d) 4th day, (e) 3rd day, (f) 2nd day, (g) 1st day, and (h) 0 day before the OCS onset for 41 OCS events. The red lines show the contours of 1, 2, and 3.5 PV units.