Geography Reference
In-Depth Information
Fig. 12.17
Latitude-height section showing January mean potential temperature surfaces (solid contours) and temperature (dashed contours). Heavy line
shows the 380 K
θ
surface, above which all
θ
surfaces lie completely in the middle atmosphere. The light shaded region below the 380 K surface is
the lowermost stratosphere, where
surfaces span the tropopause (shown by the line bounding the lower side of the shaded region). (Courtesy of
C. Appenzeller.)
