The object of this activity is to compare the evaporation patterns predicted by the “ideal” atmospheric circulation model to the observed average global evaporation data.

Figure 1. Average annual evaporation rate.

The map on the left (figure 1) shows the global annual average evaporation rate.
a) On figure 2, draw the global atmospheric circulation pattern and indicate zones of predicted high evaporation and low evaporation.
b) Go to the next page and compare the data and the model evaporation.

Figure 2: Blank map. Draw the “ideal” global evaporation rate

1) Describe the major patterns shown in figure 1:

2) Describe (and explain) the “ideal” evaporation patterns that you have drawn in figure 2:

3) Compare the “observed” evaporation of figure 1 with the model evaporation of figure 2: