Domanda 274, Operational Procedures - ATPL - Airline Transport Pilot license

Low altitude diverge from the centre of the phenomenon and the atmospheric pressure decreases by a few hectopascals.
High altitude converge on the centre of the phenomenon and the atmospheric pressure increases by a few hectopascals.
Low altitude converge on the centre of the phenomenon and the atmospheric pressure decreases by a few hectopascals.
Low altitude diverge from the centre of the phenomenon and the atmospheric pressure increases by a few hectopascals.