Which mechanism influences jet stream meandering as it passes over major mountain ranges and coastal streams?

💡 Explanation

When the jet stream encounters orographic features, orographic lifting occurs because the air is forced to rise, creating Rossby waves due to the change in air pressure with latitude, deflecting the jet stream. Therefore, Rossby waves result, rather than altering reduction of air density, updrafts intensification or baroclinic instability amplification which require entirely atmospheric thermodynamical processes.

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