Let cor he Sou
sure
Hints
Hint 1- The High pressures are named according to where they occur.
Hint 2-Write the full name of the high pressure e. g. South Atlantic Ocean High
Pressure cell when you need to identify it
TRY THESE QUESTIONS ON YOUR OWN OR IN STUDY GROUPS
QUESTION 1: 10 minutes (14) (Source: Doe November 2009)
1.1. The Kalahari high-pressure cell causes a subsidence inversion over the South African
interior. The base height of this
subsidence inversion varies from summer to winter. The
figure below is a cross-section that shows how the base height of the subsidence inversion
varies from summer to winter.
1.1.1 Detine the term temperature inversion.
(1x2) (2)
1.1.2 Which of the diagrams, FIGURE A or B, represents summer months? (1x2)(2)
1.1.3 Glve ONE reason for your answer to QUESTION 1.1.2.
(1 x 2) (2)
1.1.4. Describe the effect that the base height of the subsidence Inversion will have on the
climate of the South African Interior during summer and winter months respectively.(4x2 (8
B​