During the positive (warm) phase of the ____________________, higher pressures to the south and lower pressures across the Arctic produce strong westerly winds aloft. These winds wrap around the semipermanent zone of upper-level low pressure over the North Pole that is sometimes referred to as the ____________________
Fill in the blank with correct word.
ANSWER: Arctic Oscillation; polar vortex?
AO; polar vortex
Arctic Oscillation (AO); polar vortex
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Walking along a large city park on a hot summer day, you look for a cool resting place and sit down on a large rock under a willow tree, at the quiet edge of a stream. You have searched for and found an example of a
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