Winds are advecting a new air mass (blue temperature profile) to location A, replacing the old air mass (green temperature profile). Which of the following is true? [INSERT FIGURE 6-11. NO CAPTION]

A) The new air mass is more unstable than the old air mass.
B) The old air mass is more unstable than the new air mass.
C) The environmental lapse rate of the old air mass is greater than that of the new air mass.
D) The new air mass is more stable than the old air mass.


Answer: A

Environmental & Atmospheric Sciences

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